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EZH and EZHSO Series Pressure Reducing Regulators

Figure 1. Type EZH Pressure Reducing Regulator

Bulletin 71.2D103081X012

December 2017

EZH and EZHSO Series

Available Configurations Type EZH: Spring-to-close pilot-operated pressure

reducing regulator for low to high outlet pressure Type EZHSO: Spring-to-open pilot-operated

pressure reducing regulator for low to high outlet pressure

Type EZHOSX: Type EZH with a Type OS2 slam-shut device for overpressure (OPSO) or overpressure and underpressure (OPSO/UPSO) protection

Type EZHSO-OSX: Type EZHSO with a Type OS2 slam-shut device for overpressure (OPSO) or overpressure and underpressure (OPSO/UPSO) protection

Body Sizes, End Connection Styles and Pressure Ratings(1)

See Table 1Maximum Allowable Pressures(1)

Inlet Pressure: 1500 psig / 103 bar Outlet (Casing) Pressure: 1500 psig / 103 bar Emergency Casing Pressure: 1500 psig / 103 barMaximum Operating Differential Pressures(1)(3)

Main Valve: 1500 psid / 103 bar d Pilot: Between loading pressure in pilot and loading sense pressure: 1233 psid / 85.0 bar dMinimum Differential Pressures(1)

See Table 3Outlet Pressure Ranges See Table 2Flow and Sizing Coefficients See Tables 7 through 16Flow Capacities See Tables 17 and 18Pilot and Filter Regulator Flow Coefficients Type PRX Pilot: Cg: 10.5; Cv: 0.36; C1: 29 Type SA/2 Filter Regulator: Cg: 4.9Pressure Registration ExternalPilot Connections 1/4 NPT

Process Temperature Capabilities(1)

Nitrile (NBR) Version: -20 to 180ºF / -29 to 82ºC Fluorocarbon (FKM) Version: 0 to 180ºF / -18 to 82ºC(2)

Polyurethane (PU) Version: NPS 1, 2, 6, 8, 12 X 6 / DN 25, 50,

150, 200, 300 X 150 Sizes: -22 to 180ºF / -30 to 82ºC NPS 3 to 4 / DN 80 to 100 Sizes: -4 to 180ºF / -20 to 82ºC

Options •TravelIndicator •WhisperTrim™CageConstruction Materials Main Valve Main Valve Body: Types EZH and EZHSO:WCCSteel Types EZHOSX and EZHSO-OSX: LCC Steel Intermediate Flange and Actuator Casings: Steel, ASTM A350 LF2 Diaphragm Plates: Steel, ASTM A105 Diaphragm: Nitrile (NBR) with PVC coating O-ring: Fluorocarbon (FKM) Disk: Nitrile (NBR), Fluorocarbon (FKM) or Polyurethane (PU) PRX Series Pilots Body: Steel, ASTM 105 Trim: Stainless steel Elastomers: Nitrile (NBR) or Fluorocarbon (FKM) Disk: Polyurethane (PU) or Fluorocarbon (FKM) Type SA/2 Pilot Supply Filter Regulator Body: Steel Diaphragm: Nitrile (NBR) with PVC coating O-ring/Disk: Nitrile (NBR) or Fluorocarbon (FKM) Type OS2 Slam-Shut Device Mechanism Box: Aluminum alloy First and Second Stage Mechanism: WCCSteel Diaphragm: Nitrile (NBR) Bellows: 316 Stainless steelApproximate Weights See Table 20

1. The pressure/temperature limits in this Bulletin and any applicable standard or code limitation should not be exceeded.2. Types PRX and SA/2 Fluorocarbon (FKM) elastomer is limited to 0°F / -18°C.3. Maximum Operating Differential Pressure is 1400 psid / 96.5 bar d for NPS 1 / DN 25 Type EZHSO.

SpecificationsTheSpecificationssectionliststhespecificationsfortheEZHandEZHSOSeriespressurereducingregulators.Factoryspecificationisstampedonthenameplatefastenedontheregulatoratthefactory.

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Features • No Gas Emissions—Eliminates nuisance and

wasteful bleed gas to atmosphere by utilizing a self-contained control system, which bleeds 100% of the gas to the downstream system.

• Bubble-Tight Shutoff—A knife-edged metal plug and soft seat provide bubble tight shutoff for use in applications where positive shutoff is required such as dead-end systems.

• Long Life in Severe Service Applications—The metalplugdesigndeflectsparticlesanddebrisaway from the soft-seat, which gives excellent particle erosion resistance, prolonging service life.

• Failure Mode Options—The Type EZHSO spring-to-open design can be utilized to maximize uptime while the Type EZH spring-to-close design can be utilized to protect downstream assets. For many customers, combining the two technologies with a Type EZHSO worker and Type EZH monitor incorporates the best of both worlds.

• Precise Pressure Control—Provides stable and accurate downstream pressure control regardless of inlet pressure variations or demand changes.

• Quiet Operation—TheWhisperTrim™Cageoption reduces noise by up to 8 dBa at the source, eliminating the need for expensive path treatments such as insulation, buried valves and enclosures which only mask noise.

• Full Pressure Rating—The equal inlet and outlet pressure rating of 1500 psig / 103 bar, which allows easier selection and requires no special startup or shutdown procedures.

• Integral Slam Shut Configurations—Types EZHOSX and EZHSO-OSX interrupt gas service during an overpressure or underpressure condition.

• Easy In-Line Maintenance—Top entry design enables easier maintenance. Trim parts can be inspected, cleaned and replaced without removing the body from the pipeline.

• High Turn Down Capability—The oversized diaphragm and unique piloting system allow for high turn down, which will provide superior pressure control in systems with large variations in downstreamflowdemand.

• Travel Indicator—Simplifiesin-serviceinspectionand system troubleshooting.

• Main Diaphragm—The main diaphragm is Nitrile (NBR) reinforced with fabric and coated with PVC, which protects and extends the service life in applications with aromatic hydrocarbons.

• Common Body Platform—The EZH and EZHSOSeriesusethesamestandardFisher™E-Body which is also used in the Types EZR and EZL pressure reducing regulators and Types EZ, ES, ED and ET pressure reducing control valves. This allows easy conversion from one product to another without the need to remove the E-Body from the pipeline.

• Full Usable Capacity—Fisher brand regulators arelaboratorytested.100%ofthepublishedflowcapacitycanbeusedwithconfidence.

• Disk Design—The EZH and EZHSO Series offer disks for the main body made from Nitrile (NBR), Fluorocarbon (FKM) and Polyurethane (PU). Polyurethane (PU) provides better abrasion resistance properties and a high durometer rating toextendtheworkinglifeofthediskindifficultapplications such as high pressure drop and lowflow.

IntroductionTypes EZH (Spring-to-Close version) and EZHSO (Spring-to-Open version) regulators are accurate pilot-operated, pressure-balanced, soft-seated regulators. They are designed for use in high pressure natural gas transmission, city gate stations, large capacity distribution systems and power plant feeds. They provide smooth and reliable operation, tight shutoff and long life.

For underpressure or overpressure protection, the Types EZHOSX and EZHSO-OSX are available with an integralslam-shutdevicetocompletelyshutofftheflowofgas to the downstream system.

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Table 1. Main Valve Body Sizes, End Connection Styles and Body Ratings

Table 2. Outlet Pressure Ranges

Table 3. Minimum Differential Pressures(1)

TYPE

MAIN VALVE BODY SIZE MINIMUM DIFFERENTIAL

NPS DNFor 90% Capacity For 100% Capacity

psid bar d psid bar d

EZH

1 25 15.2 1.1 15.7 1.1

2 50 12.0 0.83 13.8 0.95

3 80 10.6 0.73 12.8 0.88

4 100 15.8 1.1 16.4 1.1

6, 8 and 12 X 6 150, 200 and 300 X 600 - - - - - - - - 14.0 0.98

EZHSO

1 25 55 3.8 55 3.8

2 50 55 3.8 55 3.8

3 80 55 3.8 55 3.8

4 100 - - - - - - - - 25.6 1.8

6, 8 and 12 X 6 150, 200 and 300 X 600 - - - - - - - - 14.0 0.98

1.WhenusingaTypeSA/2pilotsupplyfilterregulator,thedifferentialpressureacrosstheregulatormustbealeast45psid/3.1bardforoptimumregulatorperformance.

MAIN VALVE BODY SIZEMAIN VALVE BODY MATERIAL END CONNECTION STYLE

STRUCTURAL DESIGN RATING

NPS DN psig bar

1 and 2 25 and 50

LCCorWCCSteel

NPTorSWE 1500 103

1, 2, 3, 4, 6, 12 X 6 and 8

25, 50, 80, 100, 150, 300 X 150

and 200

CL150 RF 290 20.0

CL300 RF 750 51.7

CL600RForBWE 1500 103

TYPE

OUTLET PRESSURE RANGE AC (ACCURACY CLASS) PILOT CONTROL SPRING INFORMATION

psig bar EZH Series EZHSO Series Spring Color Part NumberWire Diameter Free Length

In. cm In. cm

PRX/120PRX/125PRX/131

14.5 to 2623 to 4441 to 80

73 to 123

1.00 to 1.81.6 to 3.02.8 to 5.55.0 to 8.5

2.5% 2.5%

YellowGreenBlueBlack

M0255240X12M0255230X12M0255180X12M0255220X12

0.1100.1260.1380.157

0.280.320.350.40

2.16 5.49

116 to 210203 to 334319 to 435

8.0 to 14.514.0 to 23.022.0 to 30.0

1% 2.5%SilverGold

Aluminum

M0255210X12M0255200X12M0265860X12

0.1770.1970.236

0.450.500.60

2.162.002.00

5.495.105.10

PRX/120-APPRX/125-APPRX/131-AP

435 to 1160 30.0 to 80.0 1% 2.5% Clear M0273790X12 0.335 0.85 3.93 10.0

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Pilot DescriptionsThe EZH and EZHSO Series pressure reducing regulators include a PRX Series pilot mounted on the main valve.

Type PRX/120: Outlet pressure range of 14.5 to 435 psig / 1.00 to 30.0 bar. The Type PRX/120 can be used as the pilot on single stage pressure reducing regulators, as the monitor or working pilot in wide-open monitor systems or as the working pilots in working monitor systems.

Type PRX/120-AP: Outlet pressure range of 435 to 1160 psig / 30.0 to 80.0 bar. The Type PRX/120-AP can be used as the pilot on single stage pressure reducing regulators, as the monitor or working pilot in wide-open monitor systems or as the working pilots in working monitor systems.

Type PRX/125:IdenticaltotheTypePRX/120exceptthe restriction screw is removed. The Type PRX/125 can only be used as the monitor override pilot on working monitor applications.

Type PRX/125-AP:IdenticaltotheTypePRX/120-APexcept the restriction screw is removed. The Type PRX/125-AP can only be used as the monitor override pilot on working monitor applications.

Type PRX/131: Set pressure range of 14.5 to 435 psig / 1.00 to 30.0 bar. The Type PRX/131 is used as a booster or quick dump pilot to increase main valve closing speed with another PRX Series pilot on a single stage pressure reducing regulator or with the monitor pilot on the monitor regulator in wide-open monitor systems.

Pilot Supply Filter RegulatorTheTypeSA/2pilotsupplyfilterregulatorprovidesaconstant supply pressure to the PRX Series pilot that is approximately 45 psig / 3.1 bar over set pressure. TheTypeSA/2hasanintegral5-micronfilter.

Principle of OperationEZH Series - Spring-To-Close Version The pilot-operated EZH Series (Spring-to-Close Version) will fail in close position in the case of main valve diaphragm failure or lack of supply pressure to the pilot (see Table 4 for the Failure Mode Analysis).

EZH Series (Figure 2) uses inlet pressure which is reduced through pilot operation to load the regulator actuator diaphragm (lower chamber). Outlet pressure is supplied to the regulator actuator diaphragm

(upper chamber). This pressure assists the main spring that tends to close the regulator, and opposes loading pressure in the actuator. Outlet pressure also opposes the pilot control spring.

PRX Series pilot is supplied with pressure coming from pre-regulator Type SA/2, which reduces inlet pressure to the value of outlet pressure plus approximately 45 psi / 3.1 bar.

Whenoutletpressuredropsbelowthesettingofthepilot control spring, pilot control spring force on the pilot lower diaphragm opens the pilot valve disk, providing additional loading pressure to the lower chamber of the regulator actuator diaphragm. This diaphragm loading pressure opens the main valve disk, supplying the requiredflowtothedownstreamsystem.Anyexcessloading pressure in the lower chamber of the actuator diaphragm and pilot escapes downstream through the bleed restriction in the pilot.

Whenthegasdemandinthedownstreamsystemhasbeensatisfied,theoutletpressureincreases.Whenoutletpressureincreasesoverthesettingofthe pilot spring, the pilot valve disk will be closed, reducing loading pressure to the lower chamber of the regulator actuator diaphragm; the pressure in the upper case and the main spring will force the regulator to close. The excess loading pressure acting under the regulator actuator diaphragm and pilot bleeds to the downstream system through a bleed restriction in the pilot.

A check valve, set at 75 psi / 5.2 bar is installed between outlet pressure and loading pressure impulse lines; this valve is designed to protect the main valve diaphragm assembly from excessive differential pressure during startup if incorrect start up procedures are used. Do not exceed 75 psi / 5.2 bar differential pressure between the outlet pressure and loading pressure impulse lines.

EZHSO Series - Spring-To-Open VersionThe pilot-operated EZHSO Series (Spring-to-Open version) will fail in open position in the case of main valve diaphragm failure or lack of supply pressure to the pilot (see Table 4 for the Failure Mode Analysis).

EZHSO Series (Figure 3) uses inlet pressure, which is reduced through pilot operation to load the regulator actuator diaphragm (lower chamber). Pilot supply pressure is provided to the regulator actuator diaphragm (upper chamber). This pressure on the upper chamber of the regulator actuator diaphragm opposes the main spring force that tends to open the regulator. Outlet pressure opposes the pilot control spring.

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Figure 3. Type EZHSO (Spring-to-Open Version) Operational Schematic

INLET PRESSURELOADING PRESSUREPILOT SUPPLY PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSURE

TYPE PRX:S - BLEED PORTB - SUPPLY PORTL - LOADING PORTA - SENSING PORT

TYPE SA/2:V - SENSING PORTR - PILOT SUPPLY PORTM - INLET PORT

Figure 2. Type EZH (Spring-to-Close Version) Operational Schematic

E0873_10/2015 TYPE EZH

E087

3

INLET PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSURE

PILOT SUPPLY PRESSURECHECK VALVE

LOADING PRESSURE

NOTE: The check valve is not included on all constructions.

V

RMS

BL

A

TYPE SA2

TYPE PRX

PILOT UPPER DIAPHRAGM

PILOT DISK

PILOT CONTROLSPRING

PILOT LOWER

DIAPHRAGM

REGULATOR ACTUATOR

DIAPHRAGM

MAIN VALVE DISK (PLUG)

PILOT BLEEDRESTRICTION

CHECK VALVE

INLET PRESSURELOADING PRESSUREPILOT SUPPLY PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSURE



A

BL

S M

V

R

TYPE PRXTYPE SA/2

TYPE EZHSOM1011_10/2015

PILOT BLEED RESTRICTION

CHECK VALVE

PILOT LOWER DIAPHRAGM

PILOT DISK

FILTER

REGULATOR ACTUATOR DIAPHRAGM

MAIN VALVE DISK (PLUG)

6


PRX Series pilot is supplied with pressure coming from pre-regulator Type SA/2, which reduces inlet pressure to the value of outlet pressure plus approximately 45 psi / 3.1 bar.

Whenoutletpressuredropsbelowthesettingofthepilot control spring, pilot control spring force on the pilot diaphragm opens the pilot valve disk, providing additional loading pressure to the lower chamber of the regulator actuator diaphragm. This diaphragm loading pressure opens the main valve disk, supplying therequiredflowtothedownstreamsystem.Anyexcess loading pressure in the lower chamber of the regulator actuator diaphragm and pilot escapes downstream through the bleed restriction in the pilot.

Whenthegasdemandinthedownstreamsystemhasbeensatisfied,theoutletpressureincreases.Whenoutlet pressure increases over the setting of the pilot spring, the pilot valve disk will be closed, reducing loading pressure to the lower chamber of the regulator actuator diaphragm; the pressure in the upper chamber will force the regulator to close. The excess loading pressure acting under the regulator actuator diaphragm and pilot bleeds to the downstream system through a bleed restriction in the pilot.

A check valve, set at 75 psi / 5.2 bar, is installed between inlet pressure to upper actuator casing and loading pressure impulse lines; this valve is designed to protect the main valve diaphragm assembly from excessive differential pressure during incorrect start-up procedures.

Monitoring Systems Monitoring regulation is overpressure protection by containment, therefore, there is no relief valve to vent totheatmosphere.Whentheworkingregulatorfailsto control the pressure, a monitor regulator installed in series, sensing the downstream pressure, goes into operation to maintain the downstream pressure at a slightly higher value than normal set pressure. During an overpressure situation, monitoring keeps the customer on line. Also, testing is relatively easy. To perform a periodic test on a monitoring regulator, increase the outlet set pressure of the working regulator and watch the outlet pressure gauge to determine if the monitoring regulator takes over at the appropriate outlet pressure.

Wide-Open Monitoring Systems (Figure 4)There are two types of wide-open monitoring systems: upstream and downstream. The difference between upstream and downstream monitoring is that the functions of the regulators are reversed. Systems can be changed from upstream to downstream monitoring and vice-versa, by simply reversing the setpoints of the two regulators. The decision to use either an upstream or downstream monitoring system is largely a matter of personal preference or company policy.

Table 4. Failure Mode Analysis

PART NAME CONDITION CAUSE EFFECTREGULATOR REACTION MODE

Type EZH Type EZHSO

Filter Filter blocked /Clogged

Debris or aromatics present in the gas

Decrease of supply pressure gives decrease of loading pressure Close Open

Pilot disk Pilot cannot be closed

Debris or aromatics present, Sour gas Increaseloadingpressure Open Open

Pilot lower diaphragm Pilot cannot control Debris or aromatics

present, Sour gas Decrease loading pressure Close Open

Pilot upper diaphragm

Pilot cannot feed the regulator

Debris or aromatics present, Sour gas Decrease loading pressure Close Open

Regulator diaphragm

Not proper performance of

the loading pressure chamber

Debris or aromatics present, Sour gas

Balancing of Pressures and charge or discharge of the loading pressure chamber Close Open

PilotFrozen pilot, Type SA/2 not working

Moisture in the gas, high pressure drop

Type SA/2 loading upper casing of regulator, Pilot not supplying loading

pressure to lower casingClose Close

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Innormaloperationofawide-openconfiguration,the working regulator controls the system’s outlet pressure. Withahigheroutletpressuresetting,themonitor regulator senses a pressure lower than its setpoint and tries to increase outlet pressure by going wide-open.Iftheworkingregulatorfails,themonitoringregulator assumes control and holds the outlet pressure at its outlet pressure setting.

Figure 4 shows an upstream wide-open monitor Type EZH (fail-to-close) and a downstream active regulatorTypeEZHSO(fail-to-open).Inthisinstallation, if the Type EZHSO regulator no longer controls downstream pressure, it will remain open, letting the Type EZH monitor regulator take control of the downstream pressure. Should the Type EZH fail, the monitor regulator will close and protect the downstream system from overpressure condition.

Working Monitoring Regulators (Figure 5)Inaworkingmonitoringsystem,theupstreamregulator requires two pilots and it is always the monitoring regulator. The additional pilot permits the monitoring regulator to act as a series regulator to control an intermediate pressure during normal operation.Inthisway,bothunitsarealwaysoperatingand can be easily checked for proper operation.

Innormaloperation,theworkingregulatorcontrolsthe outlet pressure of the system. The monitoring regulator’s working pilot controls the intermediate pressure and the monitoring pilot senses the system’s outletpressure.Iftheworkingregulatorfails,themonitoring pilot will sense the increase in outlet pressure and take control.

WorkingmonitorinstallationsrequireanEZHorEZHSO Series main valve with a Type PRX/120 or PRX/120-AP working pilot and a Type PRX/125 or PRX/125-AP monitoring pilot for the upstream regulator and an EZH or EZHSO Series with the appropriate Type PRX/120 or PRX/120-AP pilot for the downstream regulator.

Overpressure ProtectionOverpressuring any portion of a regulator or associated equipment may cause personal injury, leakage or property damage due to bursting of pressure-containing parts or explosion of accumulated gas. Provide appropriate pressure relieving or pressure limiting devices to ensure that the limits in theSpecificationssectionarenotexceeded.Regulatoroperation within ratings does not prevent the possibility of damage from external sources or from debris in the pipeline. Common methods of external overpressure protection include relief valves, monitoring regulators, shutoff devices and series regulation.

Figure 4. Wide-Open Monitoring System Operational Schematic



TYPE EZH TYPE EZHSO

V

RMS

BL

A

V

RMS

BL

A

TYPE SA/2

TYPE PRX

TYPE SA/2

TYPE PRX

TYPE EZH TYPE EZHO

CHECK VALVE

CHECK VALVE

M1164_10/2015

ATMOSPHERIC PRESSURE

INLET PRESSURELOADING PRESSUREINTERMEDIATE PRESSUREPILOT SUPPLY PRESSUREOUTLET PRESSURE

8


Figure 5. Working Monitoring System Operational Schematic

ATMOSPHERIC PRESSURE

E0876_10/2015

INLET PRESSURELOADING PRESSUREINTERMEDIATE PRESSUREPILOT SUPPLY PRESSUREOUTLET PRESSURE



V

RMS

SB

BLLA

A

TYPE SA/2

TYPE PRX/120TYPE PRX/125

VR

MS

BL

A

TYPE SA/2

TYPE PRX/120

TYPE EZH TYPE EZH

TYPE EZHWORKER REGULATOR

TYPE EZH MONITOR REGULATOR

CHECK VALVE CHECK

VALVE

Types EZHOSX (Figure 6) and EZHSO-OSX regulators rely on the integrated slam-shut device for overpressure (OPSO) or overpressure and underpressure(OPSO/UPSO)protection.Intheeventthat outlet pressure rises above or falls below the pressure setting, slam shut will completely shut off the flowofgastothedownstreamsystem.

Noise Abatement TrimWhisperTrim™cageprovideseffectiveattenuationof aerodynamic noise in gas applications involving high pressure drop ratios. Aerodynamic noise is generated bytheturbulencecreatedintheflowofgasasthefluidpasses through the port. To achieve effective noise attenuation,aWhisperTrimcageutilizesmultipleorificesofspecialshape,sizeandspacing.Theseorificesbreakupturbulentfluidstreams,reducingnoise-producing interactions.

EZH and EZHSO Series regulators offer an optional Whisper Trim Cage to reduce noise by up to 8 dBA. See Figure 7 for Noise Level Comparisons.

Slam-Shut DevicePrinciple of OperationThe slam-shut device on Types EZHOSX (Figure 6) and EZHSO-OSX can provide either overpressure (OPSO) or overpressure and underpressure (OPSO/UPSO)protectionbycompletelyshuttingofftheflowofgas to the downstream system. Pressure is registered on one side of the diaphragm, piston or bellows and is opposed by the setpoint control spring of the manometric sensing device. The Type OSE slam-shut valve tripping pressure is determined by the setting of the control spring.

9


Figure 6. Type EZHOSX Operational Schematic

E0939_10/2015

INLET PRESSURELOADING PRESSURE

PILOT SUPPLY PRESSUREOUTLET PRESSUREATMOSPHERIC PRESSURE

EVENT

50

mm

35

mm

15

mm

COURSE CLAPET

V

RMS

L

TYPE SA/2

TYPE PRX

B

A

MANOMETRIC DEVICE

MANOMETRIC DEVICE STEM

EQUALIZER BYPASS

VALVE PLUG

VALVE PLUG DISK

MECHANISM BOX

CHECK VALVE

Overpressure: when the downstream pressure increases above the setpoint, the pressure on top of the diaphragm overcomes the spring setting and moves the manometric device stem.

Underpressure: when the downstream pressure decreases below the setpoint, the control spring pressure below the diaphragm overcomes the downstream pressure and pushes the diaphragm which moves the manometric device stem.

Whenthepressureofthedownstreamlinerisesabovethe set pressure (or drops below the set pressure) the manometric device senses the pressure change and triggers the detection stage which activates the second stage, releasing the slam-shut valve plug. Once the slam-shut device has been tripped, it must be manually reset.

See Figures 9 and 10 for the difference between the device in open and closed positions. See Figure 11

forTypeEZHOSXInstallationSchematics.Formoreinformation about the Types EZHOSX and EZHSO-OSX, contactyourlocalSalesOffice.

Capacity InformationNote

EZH and EZHSO Series flow capacities are laboratory verified; therefore, they may be sized for 100% flow using published capacities as shown. It is not necessary to reduce published capacities.

Tables 17 and 18 show the natural gas regulating capacities of the EZH and EZHSO Series regulators at selected inlet pressures and outlet pressure settings. Flows are in thousands of SCFH at 60°F and 14.7 psia (or in thousands of Nm³/h at 0°C and 1.01325 bar) of 0.6specificgravitynaturalgas.

10


MECHANISM BOX (BM1) WITH 1 MANOMETRIC SENSING DEVICE (TYPE BMS1)

MECHANISM BOX (BM2) WITH 2 MANOMETRIC SENSING DEVICES (TYPES BMS1 AND BMS2)

Figure 7. Noise Comparison Diagram

FLOW RATE, SCFH / Nm3/h

110

100

90

80

70

353,000 / 9400

60

50706,000 / 18,900

1,060,000 / 28,400

1,400,000 / 37,500

1,760,000 / 47,100

2,100,000 /56,800

2,470,000 / 66,200

2,800,000 / 75,700

3,178,000 / 85,100

0

NO

ISE

LEVE

L (d

BA

)

EZH AND EZHSO SERIES WITH STANDARD CAGE

EZH AND EZHSO SERIES WITH WHISPER TRIM™ CAGE

BM1

TYPE BMS1

BM2

TYPE BMS2(LEFT SIDE)

TYPE BMS1 (RIGHT SIDE)

Figure 8. Types of Slam-Shut Installation

11


MECHANISM BOX

FIRST-STAGERESET PIN (WHITE)

SECOND-STAGERESET SHAFT

Figure 9. Slam-Shut Device in Open Position Figure 10. Slam-Shut Device in Closed Position

SETPOINT ADJUSTMENT RING

TRAVEL STOP

To determine equivalent capacities for air, propane, butane or nitrogen, multiply the capacity by the following appropriate conversion factor: 0.775 for air, 0.628 for propane, 0.548 for butane or0.789fornitrogen.Forgasesofotherspecificgravities, multiply the given capacity by 0.775 and dividebythesquarerootoftheappropriatespecificgravity. Then, if capacity is desired in Nm³/h at 0°C and 1.01325 bar, multiply SCFH by 0.0268.

TofindapproximateregulatingcapacitiesatpressuresettingsnotgiveninTables17and18ortofindwide-openflowcapacitiesforreliefsizingatanyinletpressure, perform one of the following procedures. Then convert using the factors provided above, if necessary.

Critical Pressure DropsFor critical pressure drops (absolute outlet pressure equal to or less than one-half of absolute inlet pressure), use the following formula:

Q = (P1)(Cg)(1.29)

Non-Critical Pressure DropsFor pressure drops lower than critical (absolute outlet pressure greater than one-half of absolute inlet pressure).

Q = 520

GTCgP1SIN

3417

C1

∆PP1

DEG

where, Q = gasflowrate,SCFH P1 = absolute inlet pressure, psia (P1 gauge + 14.7) Cg= regulatingorwide-opengassizingcoefficient G = gasspecificgravityofthegas T = absolute temperature of gas at inlet, °Rankine C1= flowcoefficient ∆P = pressure drop across the regulator, psi

12


E0953

PILOT

CONTROL LINE

BLOCK VALVE

HAND VALVE

HAND VALVE

ALTERNATE CONTROL LINECONTROL LINESLAM-SHUT DEVICE

BLOCK VALVE

PILOT SUPPLY FILTER

11A—Overpressure and Underpressure Shutoff Using One Manometric Device (This Application May Require Two Manometric Devices as Shown in Figure 11C)

Figure 11. Type EZHOSX Installation Schematics

PILOT SUPPLY FILTER

BLOCK VALVE

SENSE LINE

SLAM-SHUT DEVICECONTROL LINE ALTERNATE CONTROL LINE

HAND VALVE

HAND VALVE

BLOCK VALVE

CONTROL LINE

E0954

11B—Minimum and Maximum Upstream and Downstream Pressure

PILOT

11C—Overpressure and Underpressure Shutoff Using Separate Manometric Devices

CONTROL LINE

BLOCK VALVE

HAND VALVE

HAND VALVE

HAND VALVE

ALTERNATE CONTROL LINE

CONTROL LINE

SLAM-SHUT DEVICE

BLOCK VALVE

PILOT SUPPLY FILTER

E0955

13


PILOT PILOT

CONTROL LINE

BLOCK VALVE

HAND VALVE

HAND VALVE

HAND VALVE

ALTERNATE CONTROL LINECONTROL LINESLAM-SHUT DEVICE

BLOCK VALVE

PILOT SUPPLY FILTER

E0957

11E—Wide-Open Monitoring System with Slam-Shut Device for Overpressure and Underpressure Shutoff Using One Manometric Device (This Application May Require Two Manometric Devices as Shown in Figure 11F)

PILOT

CONTROL LINE

BLOCK VALVE

HAND VALVE

HAND VALVE

HAND VALVE

ALTERNATE CONTROL LINE

CONTROL LINE

SLAM-SHUT DEVICE

BLOCK VALVE

PILOT SUPPLY FILTER

MONITOR PILOTWORKING PILOT

PILOT SUPPLY FILTER

E0958

11F—Working Monitoring System with Slam-Shut Device for Overpressure and Underpressure Shutoff Using Two Manometric Devices (This Application May Only Require One Manometric Device as Shown in Figure 11E)

PILOT

CONTROL LINE

BLOCK VALVE

HAND VALVE

HAND VALVE

CONTROL LINEEXTERNAL TRIP PRESSURE

SLAM-SHUT DEVICE

BLOCK VALVE

PILOT SUPPLY FILTER

E0956

11D—External Signal

Figure 11. Type EZHOSX Installation Schematics (continued)

14


SPRING RANGE SPRING COLOR

SPRING PART

NUMBER

MAXIMUM SENSING

INLET PRESSURE

MANOMETRIC SENSING

DEVICE TYPE

MANOMETRIC SENSING

DEVICE STYLE

SETPOINT TOLERANCE (1)

MAXIMUM DIFFERENCE

BETWEEN OVERPRESSURE

AND UNDERPRESSURE(2)

psig bar psig bar psig bar psid bar d

4.02 to 14.1 in. w.c.

10 to 35 mbar Purple T14232T0012

75 5.2 162

Diaphragm

0.058 0.004 0.145 0.01

9.97 to 33.2 in. w.c.

25 to 83 mbar Orange T14233T0012 0.073 0.005 0.363 0.03

18 in. w.c. to 2.0 psig

45 mbar to 0.14 bar Red T14234T0012 0.145 0.01 0.725 0.05

1.0 to 3.5 0.07 to 0.24 Yellow T14235T0012 0.203 0.014 0.870 0.06

1.7 to 5.6 0.12 to 0.39 Green T14236T0012 0.261 0.02 2.18 0.15

2 to 11 0.14 to 0.80 Gray T14238T0012 0.725 0.05 5.08 0.35

4 to 19 0.28 to 1.3 Brown T14239T0012 1.16 0.08 8.70 0.60

7 to 33 0.48 to 2.3 Black T14240T0012 2.47 0.17 16.0 1.1

15 to 75 1.0 to 5.2 Blue T14237T0012

235 16.2 71

5.08 0.35 36.3 2.5

31 to 161 2.1 to 11.1 Brown T14239T0012 10.2 0.70 79.8 5.5

59 to 235 4.1 to 16.2 Black T14240T0012 23.2 1.6 145 10.0

235 to 323 16.2 to 22.3 Brown T14239T00121470 101 27

Piston

43.5 3.0Requires use of

Types BMS1 and BMS2

323 to 588 22.3 to 40.5 Black T14240T0012 94.3 6.5

588 to 808 40.5 to 55.7 Brown T14239T00121470 101 17

102 7.0

808 to 1470 55.7 to 101 Black T14240T0012 174 12.0

81 to 323 5.58 to 22.3 Brown T14239T0012514 35.4 236

Bellows

14.5 1.00 145 10.0

122 to 514 8.4 to 35.4 Black T14240T0012 36.3 2.5 290 20.0

257 to 1058 17.7 to 72.9 Gray T14238T0012 1058 72.9 315 72.5 5.0 479 33.0

1. Minimum suggested difference between slam-shut set pressure and normal operating pressure of the system.2. Maximum difference between overpressure and underpressure when using one manometric device (Type BMS1) with tripping hook. For underpressure and overpressure points greater

than this maximum number, use a second manometric device (Type BMS2) for underpressure protection.

Table 5. Manometric Device Specifications(1)

APPLICATIONMECHANISM BOX REQUIRED MANOMETRIC SENSING DEVICE REQUIRED

BM1 BM2 Type BMS1 Type BMS2

Overpressure Shutoff (OPSO)

Yes NoYes

NoUnderpressure Shutoff (UPSO)

Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO) Yes(1)

Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO)

No YesYes(2) Yes

Overpressure Shutoff (OPSO), Overpressure Shutoff (OPSO) and Underpressure Shutoff (UPSO) Yes(2) Yes(1)

1.Whenusingonemanometricsensingdevice(TypeBMS1)forbothoverpressureandunderpressureshutoff,makesurethatthedifferencebetweensetpressuresfallswithinthe maximum range shown in Table 5.

2.Whenusingtwomanometricsensingdevices(TypesBMS1andBMS2),theTypeBMS1canonlybeusedforhightrip.

Table 6. Applications and Construction Guide (See Figure 8)

15


MAIN VALVEBODY SIZE TRIM, % OF

CAPACITYLINE SIZE EQUALS BODY SIZE 2:1 LINE SIZE TO BODY SIZE PIPING

NPS DN Cg Cv C1 Cg Cv C1

1 25

100805030

564436284172

16.312.38.45.3

34.635.433.732.5

544423249157

15.310.96.34.0

35.538.739.739.1

2 50

100805030

227817191213707

58.547.131.016.9

38.936.539.141.7

211016091177718

62.950.533.018.8

33.531.935.638.2

3 80

100805030

4960395025501530

13310963.636.7

37.336.240.141.7

4396329420691339

14397.254.739.8

30.833.9

37.8033.6

4 100

100805030

7250575035102130

22716595.956.7

31.934.836.637.6

7170563034602080

22916595.556.2

31.334.136.237.0

6 150

100805030

14,430 11,270 7150 4100

462344206132

31.232.834.731.1

13,600 11,260 7120 4070

433313181132

31.435.939.330.8

8 2001005030

26,540 13,990 7720

720375202

36.937.338.1

25,27013,6007860

722374205

35.036.438.3

12 X 6 300 X 1501005030

30,490 14,040 8050

815359202

37.439.139.7

29,27013,6207890

783348198

37.439.139.7

Table 7. Types EZH and EZHSO Main Valve with Standard Cage Regulating Flow Coefficients

MAIN VALVE BODY SIZE TRIM, % OF



1 25

100805030

587453295179

16.9512.798.765.51

34.6335.4233.6832.49

566440259163

15.9411.376.524.16

35.5138.7039.7239.18

2 50

100805030

236917881261735

60.8948.9432.2617.62

38.9136.5339.0941.71

219416731224747

65.4452.5234.3519.57

33.5331.8535.6338.17

3 80

100805030

5158410826521591

138113

66.1438.17

37.2936.2440.1041.68

4571342621521393

149101

56.9441.40

30.7733.8937.7933.65

4 100

100805030

7470592036202190

23417098.858.4

31.634.836.737.3

7390580035602140

23617098.457.9

31.434.236.337.3

6 150

100805030

14,87011,61073704230

476354212136

31.232.834.731.1

14,01011,60073404200

446323187136

31.435.939.330.8

8 2001005030

27,34014,4107950

742386209

36.937.338.1

26,04014,0008100

744385212

35.036.338.3

12 X 6 300 X 1501005030

31,400 14,460 8290

839370208

37.439.139.7

30,16014,0308130

806359204

37.439.139.7

Table 8. Types EZH and EZHSO with Standard Cage Wide-Open Flow Coefficients

16





1 25

100805030

560428282171

16.312.08.35.3

34.435.733.932.3

550408245154

17.611.97.34.8

31.334.333.632.1

2 50

100805030

225918371297746

53.552.032.917.9

42.335.439.441.7

209217621301746

54.650.033.518.3

38.335.3

38.8040.80

3 80

100805030

4620392025601540

12510664.936.8

37.037.039.441.8

4359326620521328

14296.454.339.5

30.833.9

37.8033.6

4 100

100805030

7120592035502080

20916293.356.4

34.136.538.036.9

6920576034202060

21316391.755.6

32.535.337.337.1

6 150

100805030

13,930 11,230 7150 4020

412305185101

33.836.838.739.8

13,280 10,600 7150 4050

405303185102

32.835.038.839.7

Table 10. Types EZHOSX and EZHSO-OSX Main Valve with Standard Cage Regulating Flow Coefficients

Table 9. Types EZH and EZHSO Main Valve with Standard Cage IEC Sizing Coefficients



NPS DN XT FD FL XT FD FL

1 25

100805030

0.610.720.690.66

0.610.670.800.81

0.89

0.800.950.990.97

0.590.630.690.71

0.89

2 50

100805030

0.730.840.970.99

0.590.680.690.70

0.690.720.840.92

0.610.700.720.74

3 80

100805030

0.880.830.990.99

0.580.710.730.72

0.600.730.900.72

0.600.670.680.75

4 100

100805030

0.630.760.850.88

0.630.740.770.78

0.620.740.830.88

0.630.740.770.77

6 150

100805030

0.620.680.760.61

0.690.780.610.95

0.620.820.980.60

0.690.780.610.95

8 2001005030

0.860.880.92

0.690.780.61

0.770.830.93

0.690.780.61

12 X 6 300 X 1501005030

0.880.961.00

0.690.780.61

0.880.961.00

0.690.780.61

17





1 25

100805030

582445293178

16.9512.488.665.51

34.3435.6633.8332.30

572424255160

18.312.387.594.99

31.2634.2533.6032.06

2 50

100805030

234919111348776

55.5954.0434.2118.62

42.2635.3639.4041.68

217618321352775

56.7551.9734.8719.01

38.3435.2538.7740.77

3 80

100805030

4805407726621602

130110

67.5038.27

36.9636.9839.4441.86

4533339721341381

147100

56.4641.05

30.7733.8937.8033.64

4 100

100805030

7330610036602140

21516796.158.1

34.036.538.036.9

7130593035202120

21916894.557.3

32.435.237.437.1

6 150

100805030

14,348 11,567 7365 4141

424314191104

33.836.838.739.8

13,678 10,918 7365 4172

417312191105

32.835.038.839.7

Table 11. Types EZHOSX and EZHSO-OSX with Standard Cage Wide-Open Flow Coefficients

Table 12. Types EZHOSX and EZHSO-OSX Main Valve with Standard Cage IEC Sizing Coefficients



NPS DN XT FD FL XT FD FL

1 25

100805030

0.750.810.730.65

0.610.660.790.81

0.89

0.940.680.260.87

0.610.660.790.81

0.89

2 50

100805030

0.780.790.980.99

0.560.710.710.72

0.860.920.950.99

0.560.710.710.72

3 80

100805030

0.870.870.980.99

0.560.700.740.72

0.590.720.900.71

0.560.700.740.72

4 100

100805030

0.730.840.910.86

0.610.730.760.77

0.660.780.880.87

0.610.730.760.77

6 150

100805030

0.720.860.951.00

0.690.780.610.95

0.680.770.951.00

0.690.780.610.95

18


Table 13. Types EZH and EZHSO Main Valve with Whisper Trim™ Cage Regulating Flow Coefficients and Sizing Coefficients

MAIN VALVEBODY SIZE

TRIM, % OF

CAPACITY

LINE SIZE EQUALS BODY SIZE

2:1 LINE SIZE TO BODY SIZE PIPING

IEC SIZING COEFFICIENTS

1:1 Line to Body Size

2:1 Line to Body Size FL

NPS DN Cg Cv C1 Cg Cv C1 XT FD XT FD

2 50

100805030

162714661114689

42.537.628.016.6

38.339.039.841.6

153913891099695

45.940.730.818.4

33.534.135.737.7

0.820.900.990.99

0.030.030.020.02

0.710.740.810.90

0.030.030.020.02

0.89

3 80

100805030

3502292819341355

10381.449.332.9

34.136.039.241.2

3313277419081366

10882.651.435.0

30.833.637.139.0

0.590.720.950.99

0.020.020.010.01

0.600.710.870.96

0.020.020.010.01

4 100

100805030

5570486033402080

17914893.454.3

31.132.835.838.3

5410473033202050

17814693.055.0

30.432.435.737.3

0.610.670.800.92

0.020.020.010.01

0.590.660.790.88

0.020.020.010.01

6 150

100805030

12,860 10,610 7140 4040

375295191102

34.335.937.439.8

12,410 10,290 7080 4020

373293191102

33.335.137.139.6

0.740.820.881.00

0.010.010.010.01

0.700.780.870.99

0.010.010.010.01

8 2001005030

20,620 13,180 7590

518333193

39.839.639.4

19,570 12,850 7550

598327191

32.839.339.6

1.000.990.98

0.010.010.01

0.680.980.99

0.010.010.01

12 X 6 300 X 1501005030

20,000 13,110 7570

648330190

30.939.839.8

19,200 12,720 7420

622320186

30.939.839.8

0.601.001.00

0.010.010.01

0.601.001.00

0.010.010.01

Table 14. Types EZH and EZHSO Main Valve with Whisper Trim Cage Wide-Open Flow and Sizing Coefficients

MAIN VALVEBODY SIZE

TRIM, % OF

CAPACITY







2 50

100805030

169215241159718

44.239.129.117.2

38.239.039.841.7

160014441143722

47.742.331.919.2

33.534.135.837.6

0.820.900.990.99

0.030.030.020.02

0.710.740.810.90

0.030.030.020.02

0.89

3 80

100805030

3642304520111409

10784.751.334.2

34.135.939.241.2

3445288519851421

11285.853.436.3

30.733.637.139.1

0.590.720.950.99

0.020.020.010.01

0.600.710.870.96

0.020.020.010.01

4 100

100805030

5740501034402140

18415296.255.9

31.032.735.638.1

5570487034202110

18315095.856.7

30.532.435.337.3

0.610.670.800.92

0.020.020.010.01

0.590.660.790.88

0.020.020.010.01

6 150

100805030

13,24010,93073504160

386304197105

34.335.937.439.7

12,79010,60072904140

384302197105

33.335.137.039.5

0.740.820.881.00

0.010.010.010.01

0.700.780.870.99

0.010.010.010.01

8 2001005030

21,23013,5807820

534343198

39.839.639.4

20,16013,2407770

615337196

32.839.339.6

1.000.990.98

0.010.010.01

0.680.980.99

0.010.010.01

12 X 6 300 X 1501005030

20,600 13,500 7800

668340196

30.939.839.8

19,780 13,100 7640

641329192

30.939.839.8

0.601.001.00

0.010.010.01

0.601.001.00

0.010.010.01

19


Table 16. Types EZHOSX and EZHSO-OSX Main Valve with Whisper Trim Cage Wide-Open Flow and Sizing Coefficients

MAIN VALVEBODY SIZE

TRIM, % OF

CAPACITY



IEC SIZING COEFFICIENTS1:1 Line to Body Size



2 50

100805030

155415321218750

41.540.931.217.7

37.437.539.042.3

157715421216747

42.641.130.819.0

37.137.539.439.3

0.890.890.960.99

0.030.030.020.02

0.870.890.990.98

0.030.030.020.02

0.89

3 80

100805030

3611302019941397

10684.050.933.9

34.135.939.141.2

3416286119681409

11185.253.036.1

30.733.637.139.0

0.730.820.970.99

0.030.030.020.02

0.590.710.860.96

0.030.030.020.02

4 100

100805030

5650511033702100

17214892.656.0

32.934.236.337.6

5480495032902080

17314589.755.3

31.634.136.837.6

0.680.740.830.89

0.020.020.010.01

0.630.730.860.90

0.020.020.010.01

6 150

100805030

12,61010,27071904120

363283186104

34.736.338.639.8

12,200994069904080

359284186103

34.035.037.639.8

0.760.830.941.00

0.010.010.010.01

0.730.780.890.99

0.010.010.010.01

Table 15. Types EZHOSX and EZHSO-OSX Main Valve with Whisper Trim™ Cage Regulating Flow and Sizing Coefficients

MAIN VALVEBODY SIZE

TRIM, % OF

CAPACITY







2 50

100805030

149414731171721

39.939.330.017.0

37.437.539.042.4

151614821169718

41.039.529.618.2

37.037.539.539.4

0.890.890.960.99

0.030.030.020.02

0.870.890.990.98

0.030.030.020.02

0.89

3 80

100805030

3472290319181344

10280.748.932.6

34.136.039.241.2

3285275118921354

10781.951.034.7

30.833.637.139.0

0.730.820.970.99

0.020.020.010.01

0.590.710.860.96

0.020.020.010.01

4 100

100805030

5490496032702040

16714489.954.4

32.934.436.437.5

5320481031902020

16814187.753.7

31.734.136.437.6

0.680.740.830.89

0.020.020.010.01

0.630.730.860.90

0.020.020.010.01

6 150

100805030

12,240 997069703990

353275181100

34.736.338.639.8

11,840965067803950

34827518099.9

34.035.037.639.6

0.760.830.941.00

0.010.010.010.01

0.730.780.890.99

0.010.010.010.01

20


Table 17. Capacities for Types EZH and EZHSO with PRX Series Pilot and Type SA/2 Pilot Supply Filter Regulator

INLET PRESSURE

OUTLET PRESSURE

CAPACITIES IN THOUSANDS OF SCFH / Nm3/h OF 0.6 SPECIFIC GRAVITY NATURAL GAS USING 1:1 LINE SIZE TO BODY SIZE PIPING

NPS 1 / DN 25 NPS 2 / DN 50 NPS 3 / DN 80 NPS 4 / DN 100 NPS 6 / DN 150 NPS 8 / DN 200 NPS 12 X 6 / DN 300 X 150

psig bar psig bar SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

30 2.1 15 1.0 27 0.7 112 3.0 229 6.1 365 9.8 745 19.9 1233 33.0 1403 37.6

40 2.8 1525

1.01.7

3731

0.90.8

149128

4.03.4

309260

8.26.9

483420

13.0 11.3

980858

26.223.0

16631403

44.637.6

18961596

50.842.7

50 3.4152535

1.01.72.4

454135

1.21.10.9

183169142

4.94.53.8

382347288

10.29.37.7

588550469

15.8 14.8 12.6

11891118959

31.829.925.7

205618701556

55.150.141.7

234721301768

62.957.147.4

60 4.1

16203045

1.11.32.03.1

53524838

1.41.31.31.0

214211197156

5.75.65.34.2

450440406314

12.011.810.88.4

687678641513

18.4 18.2 17.2 13.8

1384137113021051

37.136.734.928.2

2420236821861695

64.863.558.645.4

2765270324901926

74.172.466.751.6

75 5.2

22304060

1.52.02.74.1

63615842

1.71.61.51.1

257250235174

6.96.76.34.6

541520483349

14.513.912.99.3

825806764574

22.1 21.6 20.5 15.4

1662163215531177

44.543.741.631.5

2908279826011886

77.975.069.750.5

3322319229632142

89.085.579.457.4

100 6.9

32405085

2.22.73.45.8

81797649

2.22.12.01.3

329322309200

8.88.68.35.3

692672639401

18.518.017.110.7

105510381003663

28.3 27.9 26.9 17.8

2126209920351362

57.056.254.536.5

3722361634412167

99.796.992.258.1

4251412639212460

11411110565.9

125 8.6

435075

110

2.93.45.27.5

99978855

2.72.62.41.4

400394356224

10.710.69.56.0

841824730447

22.622.119.612.0

128312691163742

34.4 34.131.2 19.9

2588256523681525

69.368.763.440.9

4523443239392417

12111910664.8

5166505844842743

13813612073.5

150 10.3

527595

130

3.55.26.58.9

11711010168

3.12.92.71.8

473449411278

12.712.011.07.5

994929841557

26.624.922.514.9

151514531345923

40.7 39.0 36.1 24.8

3054294727401895

81.879.073.450.8

5348500445353011

14313412280.7

6109570451623418

16415313891.6

200 13.8

73100125185

5.06.98.6

12.8

15214513369

4.13.93.61.8

616588544283

16.515.814.67.6

129512191113563

34.732.729.815.1

197419031775940

53.0 51.1 47.7 25.2

3979385836161935

10710396.951.8

6963656460043046

18717616181.6

7953748468353456

21320018392.6

300 20.7

115150200275

7.910.313.819.0

222213190107

6.05.75.12.9

902866773440

24.223.220.711.8

189517981579877

50.848.242.323.5

2892280225321462

77.675.2 67.9 39.2

5830567851623007

15615213880.5

10,193968385174741

273259228127

11,64111,04296915379

312296260144

400 27.6

155200250300350

10.713.817.220.724.1

293282261227171

7.97.67.06.14.6

118911451061926698

31.930.728.424.818.7

25002377217618761399

67.063.758.350.337.5

38133701346330472316

102 99.3 92.9 81.862.2

76857497704862304757

206201189167127

13,44612,80111,73310,1267559

360343314271202

15,35714,59813,35811,5118580

411391358308230

500 34.5

196250300400

13.517.220.727.6

364350330259

9.89.48.87

1476142313451058

39.638.136

28.4

3103295627652134

83.279.274.157.2

4732460043793492

12712311793.6

9538931589057153

256250239192

16,68715,91814,90511,522

447426399309

19,06018,15416,97713,091

511486455351

600 41.4

250300350450500

17.220.724.131

34.5

432419400338288

11.611.210.79.17.7

17521701162613781176

4745.643.637

31.5

36753535335127932364

98.594.789.874.963.4

56285498528945353889

151147142122104

11,35611,13410,74892737976

304298288248214

19,77119,03518,05815,07912,772

530510484404342

22,57521,70920,57217,14214,505

605582551459389

700 48.3

250300350400550600

17.220.724.127.637.941.4

510501487469371314

13.713.413.112.6108.4

206820321979190715141283

55.454.553

51.140.634.4

436642564114393430582575

1171141101058269

660765306397619649924251

177175171166134114

13,29413,18112,95212,58310,2218725

356353347337274234

23,47222,89822,15221,20016,51313,913

629613593568442373

26,82426,14225,26424,15518,76415,796

719700677647503423

- continued -

21


INLET PRESSURE

OUTLET PRESSURE


NPS 1 / DN 25 NPS 2 / DN 50 NPS 3 / DN 80 NPS 4 / DN 100 NPS 6 / DN 150 NPS 8 / DN 200 NPS 12 X 6 / DN 300 X 150

psig bar psig bar SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

800 55.2

300350400450500609650

20.724.127.631

34.542

44.8

579569556538515441401

15.515.214.914.413.811.810.7

2349231122572187209618001639

6362

60.558.656.248.244

4951483646934517430136443302

13313012612111597.788.5

7517743172957100683559265414

202199196190184159145

15,13515,00514,77014,41313,91012,12111,094

405402396386373325297

26,62326,02325,26824,33423,18619,67417,836

713697677652621527478

30,41829,70628,82027,73126,40122,36320,261

815796772743707599543

900 62.1

350400500600800

24.127.634.541.455.2

649638606557361

17.417.116.2159.7

26302589246622711475

70.569.466.160.939.5

55355416509846412952

14814513712479.1

84248331800374284897

226224214199131

16,97216,82716,24115,14110,062

455451435406270

29,76729,14527,46525,03115,955

797781736671427

34,00433,26831,30228,48718,108

911891839763485

1000 69

350400500600800

24.127.634.541.455.2

726718693654514

19.519.218.617.513.8

29422910281426622097

7978

75.471.356.2

62196118585154774231

167164157147113

93919330909286656922

252250244232186

18,88618,80518,40617,61514,179

506504493472380

33,43332,90631,50229,51922,851

896882844791612

38,21437,58435,93033,62425,962

10241007963901696

1100 75.8

350450500600800

1000

24.131

34.541.455.268.9

802786775744635402

21.521.120.82017

10.8

324831903147302525891646

8785.584.381.169.444.1

689467006576625952613287

18518017616814188.1

10,34210,23410,131980785045469

277275272263228147

20,76620,63620,47019,89117,37411,245

556553548533465301

37,04536,04135,38833,71828,39017,766

992966948903761476

42,36341,16040,38838,43532,28420,159

1135110310821030865540

1200 82.7

3505006008001100

24.134.541.455.275.8

877855829741422

2423

22.219.911.3

35513470337030201724

95.293

90.380.946.2

75627282700861723442

20319518816592.2

11,28111,13710,88898765734

302298292265154

22,62022,46522,04320,12911,792

606602591539316

40,62139,17437,73533,28818,607

108810491011892498

46,47144,73343,04037,88321,111

1245119811531015566

1300 89.6

3505006008001160

24.134.541.455.280

952934912839513

2625

24.422.513.7

38523786370434142096

10310199.391.556.2

82247976773570144193

220214207188112

12,21112,12111,93011,1256958

327325320298187

24,45724,41224,11022,62814,299

655654646606383

44,16942,88941,62737,81222,661

1183114911151013607

50,54748,99947,50543,06125,718

1354131312731154689

1400 96.5

3505006008001160

24.134.541.455.280

10261011993930674

27.527.126.625

18.1

41514098402937852753

11111010810173.8

88838660844478125540

238232226209148

13,14013,08812,94212,2949102

352351347330244

26,28026,32526,11824,96118,663

704705700669500

47,69646,55245,43242,09429,923

1278124712171128802

54,60153,20651,87247,96633,986

1463142513901285910

1480 102

3505006008001160

24.134.541.455.280

1085107210561001782

29.128.728.326.821

43884344428440703191

11811611510985.5

94089201900484286447

252247241226173

13,88313,85213,73713,18810,518

372371369354282

27,73127,83727,69226,74421,532

743746742716577

50,50749,45548,42845,39634,812

1353132512971216933

57,83156,53955,31151,75139,561

15491515148213861060

Table 17. Capacities for Types EZH and EZHSO with PRX Series Pilot and Type SA/2 Pilot Supply Filter Regulator (continued)

22


Table 18. Capacities for Types EZHOSX and EZHSO-OSX with PRX Series Pilot and Type SA/2 Pilot Supply Filter Regulator

INLET PRESSURE

OUTLET PRESSURE


NPS 1 / DN 25 NPS 2 / DN 50 NPS 3 / DN 80 NPS 4 / DN 100 NPS 6 / DN 150

psig bar psig bar SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

30 2.1 15 1.0 27 0.7 108 2.9 214 5.7 351 9.4 686 18.4

40 2.8 1525

1.01.7

3631

0.90.8

145124

3.93.3

289244

7.76.5

467401

12.510.8

914785

24.521.0

50 3.5152535

1.01.72.4

454135

1.21.10.9

179164138

4.84.43.6

357325270

9.58.77.2

572529447

15.414.212.0

11201035873

30.027.723.4

60 4.1

16203045

1.11.32.03.1

52524838

1.41.41.21.0

210206192150

5.65.55.14.0

421412380294

11.211.010.17.9

669659617489

18.017.716.613.1

131212911208955

35.134.632.425.6

75 5.8

22304060

1.52.02.74.1

63615742

1.71.61.51.1

252244228167

6.76.56.14.4

505486452327

13.513.012.18.7

804781735545

21.621.019.714.6

1576153014391065

42.241.038.528.5

100 6.9

32405085

2.22.73.45.8

81797549

2.22.12.01.3

323315301193

8.68.48.05.1

647628598376

17.316.816.010.1

10291008968629

27.627.026.016.9

2016197318951228

54.052.950.832.9

125 8.6

435075

110

2.93.45.17.5

98968754

2.62.52.31.4

392386346215

10.510.39.25.7

786770684420

21.120.618.311.2

125112331117703

33.533.030.018.8

2452241521861372

65.764.758.536.8

150 10.3

527595

130

3.55.16.58.9

11611010068

3.12.92.71.8

464437399268

12.411.710.77.2

929869788523

24.923.321.114.0

147814051290875

39.637.734.623.5

2897275025221708

77.673.767.645.8

200 13.8

73100125185

5.06.98.6

12.8

15114413369

4.03.93.61.8

604573528272

16.215.414.27.3

121011401043529

32.430.628.014.1

192518411705889

51.649.345.723.8

3773360433341735

10196.589.346.5

300 20.7

115150200275

7.910.313.819.0

221212188107

5.95.75.02.9

884845750422

23.722.620.111.3

177116821479823

47.545.139.622.1

2819271224261383

75.772.865.137.1

5525531047442699

14814212772.3

400 27.6

155200250300350

10.713.817.220.724.1

291280259225170

7.87.56.96.04.6

116611171031895672

31.230.027.624.018.0

23372224203817581312

62.659.654.647.135.2

37183583332729072196

99.896.289.378.058.9

72867016650856814287

195188174152115

500 34.5

196250300400

13.517.220.727.6

361348328257

9.79.38.86.9

1447138913081021

38.837.235.127.4

2900276625892001

77.774.169.453.6

4614445442153323

12411911389.2

9042872182466492

242234221174

- continued -

23


Table 18. Capacities for Types EZHOSX and EZHSO-OSX with PRX Series Pilot and Type SA/2 Pilot Supply Filter Regulator (continued)

INLET PRESSURE

OUTLET PRESSURE


NPS 1 / DN 25 NPS 2 / DN 50 NPS 3 / DN 80 NPS 4 / DN 100 NPS 6 / DN 150

psig bar psig bar SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h SCFH Nm3/h

600 41.4

250300350450500

17.220.724.131

34.5

429416397335286

11.511.110.6

97.7

17171661158313331133

4644.542.435.730.4

34363307313726182217

92.188.684.170.259.4

54805325509743283695

14714313711699

10,73710,426997384587217

288279267227193

700 48.3

250300350400550600

17.220.724.127.637.441.4

507497484465368312

13.613.313

12.59.98.4

203119901933185714621236

54.453.451.849.839.233.1

407939793849368328672415

10910710398.777

64.7

646063546196597547554034

173170166160127108

12,66412,44912,13111,69292917877

339333325313249211

800 55.2

300350400450500609650

20.724.127.631

34.542

44.8

575565552534511438399

15.415.114.814.313.711.710.7

2306226222042130203617401581

61.860.659.157.154.646.642.4

4627452243904227402734163097

12412111811310891.583

7341722770666851657156525149

197194189184176151138

14,39014,15813,83613,40812,85311,04510,059

385379371359344296269

900 62.1

350400500600800

24.127.634.541.455.2

644633602553358

17.317

16.114.89.6

25802534240322031420

69.168

64.459

38.1

51735064477143472770

13913612811774.2

82208099772671234639

220217207191124

16,11115,86715,12113,9309057

432425405373243

1000 69

350400500600800

24.127.634.541.455.2

721712688649510

19.319.118.417.413.7

28912854274825892025

77.576.573.669.454.3

58115719547351283968

156153146137106

91899097880883436589

246244236224177

18,01717,82917,24616,32212,872

483478462437345

1100 75.8

350450500600800

1000

24.131

34.541.455.269

796781770739630400

21.320.920.619.816.910.7

319731273079294825061582

85.783.882.579

67.242.4

643962636149585849303084

17316816515713282.7

10,14299749844947481285176

272267264254218139

19,89219,54519,28218,54315,88710,103

533524517497426271

1200 82.7

3505006008001100

24.134.541.455.275.8

871849824736419

23.322.822.119.711.2

35003401329129291658

93.891.188.278.544.4

70616807655657813230

18918217615586.6

11,08410,89410,54994725424

297292283254145

21,74521,25920,65618,52210,588

583570553496284

1300 89.6

3505006008001160

24.134.541.455.280

945927906833509

25.324.824.322.313.6

38003716362333192017

10299.697.188.954.1

76787454723365683934

206200194176105

12,01811,83311,58710,7026591

322317311287177

23,58223,19422,69620,93612,868

632621608561345

1400 96.5

3505006008001160

24.134.541.455.280

10191004986924669

27.326.926.424.818

40994027394636862655

11010810698.871.2

82928091789573125195

222217212196139

12,94612,80212,59811,8588651

347343338318232

25,40825,09924,68423,20616,897

681672661622453

1480 102

3505006008001160

24.134.541.455.280

107810651049994776

28.928.528.126.620.8

43374273420139683082

11611511310682.6

87818596841678876045

235230226211162

13,68513,56813,39212,74610,021

367364359342269

26,86126,60626,24624,95019,579

720713703668525

24


Table 19. Types EZH and EZHSO Dimensions

Table 20. Approximate Weights

Figure 12. Types EZH and EZHSO Dimensions

GE01592_B

BODY SIZEAPPROXIMATE SHIPPING WEIGHTS

Flanged NPT, SWE and BWE For Type OSX

NPS DN lbs kg lbs kg lbs kg

1 25 87 39 77 35 Add 17 Add 8

2 50 150 68 136 62 Add 30 Add 14

3 80 410 186 390 177 Add 41 Add 19

4 100 514 234 433 197 Add 57 Add 26

6 150 1460 662 1400 635 Add 74 Add 34

8 200 1875 850 1805 819 - - - - - - - -

12 X 6 300 X 150 2050 930 1970 894 - - - - - - - -

BODY SIZE, NPS / DN

DIMENSIONS, In. / mm

AC D

(maximum) E F G H J RNPT or SWE CL150 RF CL300 RF CL600 RF or

BWE

1 / 25 8.25 / 210

7.25 / 184

7.75 / 197

8.25 / 210

1.50 / 38.1

2.10 / 53

12.3 / 311

13.05 / 331

11.10 / 282

5.10 / 130

8.25 / 210

3.5 / 88.9

2 / 50 11.25 / 286

10.0 / 254

10.50 /267

11.25 / 286

1.50 / 38.1

3.10 / 79

14 / 356

14.75 / 375

11.30 / 287

6.50 / 165

7.75 / 197

4.5 / 114

3 / 80 - - - - 11.75 / 298

12.50 / 317

13.25 / 337

2.00 / 50.8

3.81 / 97

16 / 406

15.36 / 390

16.75 / 425

8.00 / 203

13.25 / 337

6.0 / 152

4 / 100 - - - - 13.9 /353

14.5 / 368

15.5 / 394

2.00 / 50.8

5.06 / 129

18.3 / 464

15.85 / 403

16.8 / 427

10.03 / 255

5.5 / 140

7.5 / 191

6 / 150 - - - - 17.75 / 451

18.62 / 473

20 / 508

2.75 / 70

5.31 / 135

17 / 432

19.25 / 489

25 / 635

13 / 330

18 / 457

8.7 / 221

8 / 200 - - - - 21.38 / 543

22.38 / 568

24 / 610

2.75 / 70

8.25 / 210

17 / 432

19.25 / 489

28.5 / 724

13 / 330

18 / 457

8.7 / 221

12 X 6 / 300 X 150 - - - - 29 / 737

30.5 / 775

32.25 / 819

2.75 / 70

10 / 254

17 / 432

19.25 / 489

28.5 / 724

13 / 330

18 / 457

8.7 / 221

GF

R (TRIM REMOVAL

CLEARANCE)C(INDICATOR COVER

REMOVAL CLEARANCE)

TOP VIEW

D

E

H

J

A/2

A

CAUTIOSPRING UNDER COMPRESSIO REMOVE LONG BOLTS STAMPED (LB) LAST

25


BODY SIZE

DIMENSION WITH SLAM SHUT

D HM(1) N

Diaphragm Piston Diaphragm Piston Bellows

NPS DN In. mm In. mm In. mm In. mm In. mm In. mm In. mm

1 25 12.0 305 9.8 249

6.4 163 2.8 71 6.9 175 8.0 203 8.8 224

2 50 13.0 330 10.4 264

3 80 14.4 366 11.8 300

4 100 16.8 427 13.6 346

6 150 15.6 359 13.0 330

1. Type 71 BMS with a diaphragm has an M dimension of 2.80 in. / 71 mm.

Figure 13. Types EZHOSX and EZHSO-OSX Dimensions

IN. / mmGE01592_A

Table 21. Types EZHOSX and EZHSO-OSX Dimensions

M

N

H

D

0.98 / 25MECHANISMBOX REMOVALCLEARANCE

26


Ordering Information UsetheSpecificationssectiononpage3andcarefullyreviewthedescriptiontotherightofeachspecification.Use this information to complete the Ordering Guide

on the following page. Specify the desired selection wherever there is a choice to be made. Then send the OrderingGuidetoyourlocalSalesOffice.

Ordering Guide

Type and Body Material (Select One) WCC Steel Type EZH (Spring-to-Close Version)*** Type EZHSO (Spring-to-Open Version)*** LCC Steel Type EZHOSX (Spring-to-Close Version with Slam shut)*** Type EZHSO-OSX (Spring-to-Open Version with Slam shut)***

Body Size (Select One) NPS 1 / DN 25*** NPS 2 / DN 50*** NPS 3 / DN 80*** NPS 4 / DN 100*** NPS 6 / DN 150*** NPS 8 / DN 200*** NPS 12 X 6 / DN 300 X 150***

End Connection Styles (Select One) Types EZH and EZHSO Only WCC Steel NPT (available for NPS 1 and 2 / DN 25 and 50 Body Sizes only)*** CL150 RF*** CL300 RF*** CL600 RF*** SWE(AvailableforNPS1and2/DN25 and 50 Body Sizes only)** BWE** PN 16/40 (For NPS 1 and 2 / DN 25 and 50 Body Sizes only)** PN 25/40 (For NPS 3 / DN 80 Body Size only)** Types EZHOSX and EZHSO-OSX Only LCC Steel CL150 RF** CL300 RF** CL600 RF**

Main Valve Disk Material (Select One) Nitrile (NBR) (standard)*** Fluorocarbon (FKM)*** Polyurethane (PU)***

Pilot Type (Select One) Type PRX/120*** Type PRX/120-AP*** Type PRX/125 (monitor override pilot)*** Type PRX/125-AP (monitor override pilot)***

Outlet Pressure Range (Select One) Type PRX/120 or PRX/125 14.5 to 26 psig / 1.00 to 1.8 bar, Yellow*** 23 to 44 psig / 1.6 to 3.0 bar, Green*** 41 to 80 psig / 2.8 to 5.5 bar, Blue*** 73 to 123 psig / 5.0 to 8.5 bar, Black*** 116 to 210 psig / 8.0 to 14.5 bar, Silver*** 203 to 334 psig / 14.0 to 23.0 bar, Gold*** 319 to 435 psig / 22.0 to 30.0 bar, Aluminum*** Type PRX/120-AP or PRX/125-AP 435 to 1160 psig / 30.0 to 80.0 bar, Clear***

Whisper Trim™ Cage Construction (Optional) [Not available to NPS 1 / DN 25 Body Size] Yes***

Type SA/2 Elastomer Material (Select One) Nitrile (NBR) (standard)*** Fluorocarbon (FKM)***

Pilot Elastomer Material (Select One) Nitrile (NBR) / Polyurethane (PU) (standard)*** Fluorocarbon (FKM)***

Travel Indicator (Select One) Yes*** No***

- continued -

27


Ordering Guide (continued) Main Valve Spare Parts Kit (Optional) Yes, send one disk parts kit to match this order. Yes, send one full parts kit to match this order.

Pilot Spare Parts Kit (Optional) Yes, send one spare parts kit to match

this order.

Regulators Quick Order Guide* * * Readily Available for Shipment

* * Allow Additional Time for Shipment

* Special Order, Constructed from Non-Stocked Parts. ConsultyourlocalSalesOfficeforAvailability.

Availability of the product being ordered is determined by the component with the longest shipping time for the requested construction.

Specification Worksheet Application: SpecificUse Line Size GasTypeandSpecificGravity Gas Temperature Does the Application Require Overpressure Protection? Yes No Ifyes,whichispreferred: Relief Valve Monitor Regulator Shutoff Device Isoverpressureprotectionequipmentselectionassistance desired?

Pressure: MaximumInletPressure(P1max) MinimumInletPressure(P1min) Downstream Pressure Setting(s) (P2) Maximum Flow (Qmax) Minimum Flow (Qmin) Performance Required: Accuracy Requirements?

Other Requirements:


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D103081X012 © 2003, 2017 Emerson Process Management Regulator Technologies, Inc. All rights reserved. 12/17. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Fisher™ is a mark owned by Fisher Controls International LLC, a business of Emerson Process Management.

The contents of this publication are presented for information purposes only, and while effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available on request. We reserve the right to modify or improve the designs or specifications of our products at any time without notice.

Emerson Process Management Regulator Technologies, Inc does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management Regulator Technologies, Inc. product remains solely with the purchaser.

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