neles® high performance heavy duty scotch yoke...

6 N1 70 en • 11/2019

NELES® HIGH PERFORMANCE HEAVY DUTY SCOTCH YOKE ACTUATOR, SERIES N1

Installation, Maintenance and Operating Instructions

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Table of Contents1 GENERAL .............................................................. 3

1.1 Scope of the manual ........................................... 31.2 Structure and operation .................................... 31.3 Actuator markings ............................................... 31.4 Specifications ....................................................... 41.5 Recycling and disposal........................................ 41.6 Definitions .............................................................. 41.7 Safety precautions ............................................... 5

2 TRANSPORTATION AND STORAGE .................... 53 MOUNTING AND DEMOUNTING ........................ 6

3.1 Actuator gas supply ............................................ 63.2 Installation information .................................... 63.3 Mounting the actuator on the valve ............. 63.4 Operating directions........................................... 6

4 MAINTENANCE..................................................... 74.1 Maintenance general.......................................... 74.2 Maintenance precautions of the N1_E_C

and N1_E_A actuator .......................................... 94.3 Module removal and installation .................... 94.4 Actuator Disassembly .......................................144.5 Actuator Reassembly .........................................194.6 Stroke screw adjustment..................................234.7 Field conversions ...............................................23

5 MALFUNCTIONS.................................................236 TOOLS .................................................................24

6.1 Tightening torque table ..................................247 ORDERING SPARE PARTS .................................. 248 EXPLODED VIEWS AND PARTS LIST ................ 25

8.1 Double acting actuators N1_D00................. 258.2 Single acting actuators N1_E_C and

N1_E_A ...................................................................279 DIMENSIONS AND WEIGHTS ............................ 29

9.1 Dimensions double acting.............................. 299.2 Weights double acting .....................................309.3 Dimensions single acting ................................319.4 Weights single acting .......................................329.5 Attachment dimensions ..................................33

10 TYPE CODE ......................................................... 34

READ THESE INSTRUCTIONS FIRST!

These instructions provide information about safe handling and operation of the device. If you require additional assistance, please contact the manufacturer or manufacturer’s representative.Addresses and phone numbers are printed on the back cover. See also www.metso.com/valves for the latest documentation.

SAVE THESE INSTRUCTIONS!

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1 GENERAL

1.1 Scope of the manualThis instruction manual contains important informationregarding the installation, operation and maintenance ofMetso N1 series actuators. Please read these instructionscarefully and save them for future reference.

The manual can be changed or revised without any priornotice. Any changes in product’s specification, structure,and/or any components may not result immediate revisedversion of the manual.

1.2 Structure and operationThe N1 series actuators are pneumatic quarter turn cylinderactuators designed for control and shut-off service. Designis modular and enables an ideal configuration of pneu-matic, central block and spring modules. Ductile cast ironcenter body, fabricated carbon steel pneumatic moduleand spring module provides rugged actuator construction.

The spring provides the required safety function; the valveeither opens or closes if the air supply is interrupted.

The mounting face dimensions of the N1 actuator complywith the ISO 5211 standard.

The N1_E_C is spring to close type actuator. The yoke of theactuator, when operated by the spring, rotates clockwise asseen from the pointer cover side. The piston then movestowards the frame side of the cylinder. The two keyways inthe yoke are positioned at an angle of 90° to each other,making it possible to change the position of the actuator inrelation to the valve, see Fig. 1.

Fig. 1 Operating principle of the N1_E_C actuator

The N1_E_A is spring to open type actuator. The yoke of theactuator, operated by the spring, rotates counter clockwiseas seen from the pointer cover side. The piston then movestowards the frame side of the cylinder. The two keyways inthe secondary shaft (yoke) are positioned at an angle of 90°to each other, making it possible to change the position ofthe actuator in relation to the valve, see Fig. 2.

Fig. 2 Operating principle of the N1_E_A actuator.

The N1_D is a double acting actuator. The linkage mecha-nism converts linear motion (provided by an air supply andpiston) to rotary motion. The yoke of the actuator rotatesclockwise (close) when cylinder supply is in rear port andcounter clockwise (open) when cylinder supply is in frontport, see Fig. 3.

Fig. 3 Operating principle of the N1_D actuator.

1.3 Actuator markings The actuator is provided with an identification plate, seeFig. 4.

Fig. 4 ID plate

Identification plate markings are:

1. Type2. Manufacturing site, date, successive no. (bar code)3. SO number or ID number (bar code)4. Max. operating pressure5. ATEX category and protection level

(1)

(2)

(3)

(4)

(5)

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1.4 SpecificationsProtection class: IP66, IP67Ambient temperatures:Standard design -20° to 80° C / -4° to 176° FHigh temperature design -20° to 125° C / -4° to 257° FMaximum Supply pressure: Depends on model, See Table 3

Table 1 Stroke volume, dm3 - Single acting

Table 2 Stroke volume, dm3 - Double acting

Note: Actuator output torques - consult factory.

Table 3 Maximum operating pressure

Note: Actuator output torques - consult factory.

1.5 Recycling and disposalMost of the actuator parts can be recycled if sorted accord-ing to material. Most parts have material marking. A mate-rial list is supplied with the actuator. In addition, separaterecycling and disposal instructions are available from themanufacturer. An actuator can also be returned to the man-ufacturer for recycling and disposal against a fee.

1.6 DefinitionsThe following definitions given here are used in this docu-ment:

Cyl. Diam 63 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000 1100 1200 1300

Actuator Stroke volume, dm3

N1X 0.3 0.6 0.9 1.4 - - - - - - - - - - - - - - -

N1A - - 0.9 1.4 2.5 3.6 5.7 8.2 11 - - - - - - - - - -

N1B - - - - - - - 10 14 18 - - - - - - - - -

N1C - - - - - - - 12 17 22 35 - - - - - - - -

N1D - - - - - - - 14 20 27 42 63 94 - - - - - -

N1E - - - - - - - - - 32 50 76 113 137 171 - - - -

N1G - - - - - - - - - - 62 93 147 168 202 - - - -

N1H - - - - - - - - - - - 115 213 208 261 305 - - -

N1J - - - - - - - - - - - - 225 273 343 401 - - -

N1M - - - - - - - - - - - - - - - 516 624 743 872

Cyl. Diam 63 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000 1100 1200 1300

Actuator Stroke volume, dm3

N1X 0.3 0.6 0.9 1.4 - - - - - - - - - - - - - - -

N1A - - 0.9 1.4 2.5 3.6 5.7 8.2 11.0 - - - - - - - - - -

N1B - - - - - - - 10 14 18 - - - - - - - - -

N1C - - - - - - - 12 17 22 35 - - - - - - - -

N1D - - - - - - - 14 20 27 42 63 94 - - - - - -

N1E - - - - - - - - - 32 50 76 113 137 171 - - - -

N1G - - - - - - - - - - 62 93 147 168 202 - - - -

N1H - - - - - - - - - - - 115 213 208 261 305 - - -

N1J - - - - - - - - - - - - 225 273 343 401 - - -

N1M - - - - - - - - - - - - - - - 516 624 743 872

Cyl. Diam 63 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000

Actuator maximum operating pressure, barg

N1X 8.0 8.0 8.0 8.0 - - - - - - - - - - - -

N1A - - 8.0 8.0 8.0 8.0 8.0 8.0 6.0 - - - - - - -

N1B - - - - - - - 8.0 7.7 6.0 - - - - - -

N1C - - - - - - - 8.0 8.0 8.0 6.0 - - - - -

N1D - - - - - - - 8.0 8.0 8.0 6.0 5.5 5.5 - - -

N1E - - - - - - - - - 8.0 6.0 5.5 5.5 5.5 5.5 -

N1G - - - - - - - - - - 6.0 5.5 5.5 5.5 5.5 -

N1H - - - - - - - - - - - 5.5 5.5 5.5 5.5 5.5

WARNING: If not observed, user incurs a high risk ofsevere damage to the product and/or fatalinjury to personnel.

CAUTION: If not observed, user may incur damage to the productand/or injury to personnel.

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1.7 Safety precautionsWARNING:

Valve on which actuator is installed should be earthedproperly to discharge static charge.

2 TRANSPORTATION AND STORAGEMake sure that the actuator and associated equipmenthave not been damaged during transportation. Store theactuator carefully before installation, preferably indoors in adry place. Do not take it to the installation site or removethe protective caps of ports for piping until just beforeinstallation.

Lift the actuator as shown in Fig. 5: in a horizontal positionfrom the lifting lugs. Refer to Section 9 for weights..

Fig. 5 Lifting the actuator

Upon receiving the product check the limit actuator andthe accompanying devices for any damage that may haveoccurred during transport.

Store the actuator carefully. Storage indoors in a cool, dryplace. Temperature limit for the storing is from 4 °C to 40 °C.The actuator should be left in its original packing until it isrequired for the use. Do not remove protective plugs untilinstalling the actuator.

NOTE: Advisory and information comments provided to assistmaintenance personnel to carry out maintenance proce-dures.

WARNING FOR ATEX: If not observed, user incurs a high risk of severe dam-age to actuator and/or fatal injury to personnel.

CAUTION:Don’t exceed the permitted values!Exceeding the permitted pressure value marked on theactuator may cause damage and lead to uncontrolledpressure release in the worst case. Damage to the equip-ment and personal injury may result.

CAUTION:Don’t dismantle a pressurized actuator!Dismantling a pressurized actuator leads to uncontrolledpressure release. Shut off the supply pressure and releasepressure from the cylinder before dismantling the actua-tor. Otherwise, personal injury and damage to equipmentmay result.

CAUTION:Follow the instructions given on the actuator warningplates!

CAUTION:Before opening the cylinder fastening screws (11),release spring tension directed on actuator warningplate and in these instructions!

CAUTION:Don’t dismantle the spring module!Do not remove the spring module while the spring is com-pressed or under pressure.

CAUTION:Take the weight of the actuator or valve combinationinto account when handling it!Lifting lugs on the actuator are meant only for liftingactuator and not complete valve assembly.Do not lift the valve combination from the actuator, posi-tioner, limit switch or their piping. Lift the actuator asdirected in Section 2, lifting ropes for a valve combinationshould be fastened around it. The weights are shown inSection 9. Dropping may result in personal injury or dam-age to the equipment.

WARNING FOR ATEX: While lifting actuator housing should notimpact on the other light or rusty metal .

CAUTION:Potential electrostatic charging hazard, do not rubsurface with dry cloth.

WARNING FOR ATEX: Inspect for paint damaged, to ensure contin-ued corrosion protection. Actuator speed should not faster than speci-fied in the following chart.

MODELSTROKE

(mm)

MINIMUM OPENING/CLOSING

TIME (SECONDS)

N1X 56 0.1

N1A 116 0.1

N1B 150 0.2

N1C 180 0.2

N1D 216 0.3

N1E 260 0.3

N1G 320 0.4

N1H 396 0.5

WARNING: DO NOT USE THE DEVICE IF IT IS DAMAGEDDURING TRANSPORTATION! IF THE DEVICE HAS SUFFERED DAMAGE DUR-ING TRANSPORTATION DO NOT INSTALL AND USE IT.IN CASE OF NOTICING DAMAGE TO THE DEVICE UPONRECEIVING IT PLEASE CONTACT THE SUPPLIER.

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3 MOUNTING AND DEMOUNTING

3.1 Actuator gas supplyDry compressed air, nitrogen or natural gas (sweet) can beused as supply medium, no oil spraying is needed. The airsupply connections are presented in the dimensional draw-ings in Chapter 9. The maximum supply pressure is depend-ing the selected model.

3.2 Installation informationBefore installation please take care of the safety precau-tions mentioned in the Section 1.7.

Ensure that the actuator will not be exposed to pressure inexcess to the maximum rating as indicated on the actuatornameplate or technical documents.

Ensure that throughout the installation that there are noleaks of the supply media.

The maximum operating temperature for the actuatordepends on individual build of actuator. Refer nameplatefor operating temperature range.

Ensure that the maximum operating temperature as indi-cated on the nameplate is not exceeded during operation,transportation or storage of the actuator.

The environment and surrounding should not affect or limitthe operational safety of the product.

Ensure the product is protected against impact, vibration orany kind of movement during operation, transportationand storage.

Product should not be installed in hazardous area that isnot compatible with the gas group and temperate classindicated on the nameplate.

N1 series actuators can be mounted on valve in any desiredposition. However it is recommended to align the center-line of the pneumatic cylinder module along the pipeline.

Ensure proper tightening of fasteners and mounting acces-sories to avoid loosening during operation.

All the tubing, fitting and actuation media should be freefrom contamination and filtered to the desired level. Qual-ity of media should be as per ISO 8573-1 [5:3:4]. For addi-tional information consult Metso.

Ensure proper adjustments of the stopper bolt to desiredopening and closing of the valve.

Once proper installation is done, check for smooth continu-ous operation. If undesired operation occurs, check for cor-rect pressure and volume flow.

3.3 Mounting the actuator on the valve

Install the actuator so that the shaft of the valve or anyother device to be actuated goes into the shaft bore of the

actuator. If the bore is larger than the shaft diameter, use akeyed shaft adapter, sleeve or bushing. There are two keyway slots in the shaft bore of the actuator at an angle of 90°.These allow the installation position of the actuator to bechanged in relation to the valve. Metso valves have a bevelat the end of their shafts to facilitate installation.

Fig. 6 Ways to install the actuator

The installation position can be selected freely, but Metsorecommends installation of spring return version with thepneumatic cylinder pointing towards the ground. Doubleacting version can be installed any position. The actuator isthus best protected against damage due to supply airimpurities or water. When the installation position of theactuator is altered, the arrow indicating the operating direc-tion must be turned to correspond with the actual opera-tion of the valve.

When necessary, lubricate the actuator bore and collar withgrease or anti-corrosive agent to prevent it from jammingdue to rust.

The actuator must not be allowed to come in contact withthe pipework, because the vibrations may damage it orcause unsatisfactory operation.

In some cases, e.g. when using large actuators or withextensive pipework vibrations, the actuator should be sup-ported. Consult Metso for instructions.

If the actuator is used with devices other than Metso valves,any additional parts attached to the actuator must be prop-erly protected.

3.4 Operating directionsA sticker on the actuator cylinder indicates the springaction direction.

NOTE: Flow may be restricted by undersize tubing or fitting.These may throttle the flow resulting in reduce pressure orvolume causing intermittent or undesired movement.

CAUTION:Be aware of the cutting movement of the valve!

NOTE:Separate instructions are available for adjusting the closelimit of metal-seated butterly valves. Refer to the installa-tion, operating and maintenance instructions of the valve.

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3.4.1 N1_E_C actuator spring -to-close direction

Install the actuator on the valve with the spring return position(fail safe) and the valve in the closed position, see Fig. 5. Thecylinder must be de-pressurized and the air ports open. Adjustthe closed-position setting using the stop screw (42a) oncenter block. The open-position setting is adjusted with stopscrew (42b) on the center block while the actuator is pressur-ized and the piston is at the rear end of the cylinder.

Fig. 7 N1_E_C actuator

3.4.2 N1_E_A actuator spring -to-open direction

Install the actuator on the valve with the spring return position(fail safe) and the valve in the open position, see Fig. 6. The cyl-inder must be de-pressurized and the air ports open. Adjustthe open-position setting using the stop screw (42b) on centerblock. The closed-position setting is adjusted with stop screw(42a) on the center block while the actuator is pressurized andthe piston is at the rear end of the cylinder..

Fig. 8 N1_E_A actuator

3.4.3 Demounting the actuator from the valve

The actuator must be de-pressurized and the supply air dis-connected. Unscrew the actuator-side screws of

the bracket and pull the actuator off the valve shaft. This isbest done lifting the actuator from lifting lugs by crane.Note the mutual positioning of the valve and the actuatorto ensure correct functioning after reassembly.

4 MAINTENANCE

4.1 Maintenance general

Although Metso’s Neles actuators are designed to workunder severe conditions, proper preventative maintenanceCan significantly help to prevent unplanned downtime andin real terms reduce the total cost of ownership. Metso rec-ommends inspecting the actuators at least every five (5)years. The inspection and maintenance interval depend onthe actual application and process condition. The inspec-tion and maintenance intervals can be specified togetherwith your local Metso experts.

During this periodic inspection the parts detailed in theSpare Part Set should be replaced. Time in storage shouldbe included in the inspection interval.

If maintenance assistance is required, please contact yourlocal Metso office. The part numbers in parentheses () in thetext refer to the exploded view and to the parts list in Sec-tion 8, unless otherwise stated.

This procedure is applicable with the understanding that allpneumatic pressure has been removed from the actuator.

Remove all piping and mounted accessories that will inter-fere with the module that are to be worked on.

When removing seals from seal grooves; use a commercialseal removing tool or a small screwdriver with sharp cornersrounded off.

Use a non-hardening thread sealant on all pipe threads.

All parts should be thoroughly inspected for excessive wear,stress cracking and pitting. Attention should be directed tothreads, sealing surfaces and areas that will subjected tosliding and rotating motion.

Actuator parts that reflect any of the above listed character-istics should be replaced with new parts.

Metso recommends that disassembly of the actuator mod-ules should be done in a clean area on a workbench.

After reassembly, the actuator needs to be stroke for severaltimes to ensure the desired function and safety.

If you remove the stop screw, adjust the limits after lubrica-tion or grease filling!

Before doing maintenance, check actuator for leakage atinlet, outlet and cover.

CAUTION:Depressurise the actuator before starting demount-ing!

CAUTION:Observe the safety precautions mentioned in Section1.7 before maintenance!

CAUTION: Apply the thread sealant as per the manufacturer’sinstructions.

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For single acting actuator if port B is connected then check air leakage from exhaust port.

For double acting actuator if port B is connected then check air leakage from exhaust port.

NOTE:In order to ensure safe and effective operation, always useoriginal spare parts to make sure that the actuator func-tions as intended.

NOTE:When sending goods to the manufacturer for repair, donot disassemble them.

NOTE:For safety reasons, replace bolting if the threads are dam-aged, have been heated, stretched or corroded.

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4.2 Maintenance precautions of the N1_E_C and N1_E_A actuator

The spring module has a warning sticker. When servicingthe unit, check that the sticker is in place and legible. SeeFig. 8. Also check that the spring module has the arrowsticker indicating the spring operating direction.

Fig. 9 Warning plate of the N1_E_C and N1_E_A actuator

4.3 Module removal and installation

4.3.1 Spring module removal

Step 1. Apply pneumatic pressure to front cover (3) to com-press the spring enough to move the yoke off the stopscrew of spring module side of the central block module.

Step 2. Loosen the stop screw nut (43) located on the stopscrew that is closest to or next to Spring Module.

Step 3. Unscrew stop screw (42) that is closest to or next toSpring Module (unscrew or back out until the load isremoved from the stop screw).

Step 4. Remove pneumatic pressure from pressure inletport of front cover (3).

Step 5. Spring cartridge preload must be removed beforespring module is removed from actuator assembly. To removespring cartridge preload Apply pneumatic pressure to rearcover (10) to move the spring cartridge connecting rod (58).

Step 6. Unscrew bolts (44) of rear side end cap (61) andremove end cap.

Step 7. Unscrew lock nut (53) of connecting rod (58) toremove lock nut.

CAUTION:Don’t dismantle a pressurized actuator!

CAUTION:To release spring tension, the spring direction stopscrew at the central block must be removed before thecylinder fastening screws are opened!

CAUTION:Don’t dismantle the spring package!The spring package within the cylinder is preloaded.Never open or dismantle the spring package. The springmodule is always delivered as a pre-assembled package.

WARNING: Do not remove spring module while spring iscompressed

NOTE:Review section 4.4.1 General Disassembly before pro-ceeding with spring module disassembly. The setting ofstop screws should be checked and setting recordedbefore stop screws are loosened or removed.

CAUTION: Due to the weight and size of spring cartridge assem-bly, heavy duty support equipment will be requiredwhen removing module from actuator assembly.

CAUTION: Maximum pressure to be applied in the above step is 1 barg(1 kg/cm2).

NOTE: If pneumatic pressure is not available to apply, usespecial Metso spanner for ring nut.

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Step 8. Remove hex cap screw /nut (38) with lock washer (37) from housing.

Step 9. Remove spring module from actuator assembly, uselugs provided on spring module assembly for lifting.

Step 10. Un-screw and remove hex. Soc. Head cap screw(45) from top cover (12) of central block module.

Step 11. Fitment between top cover (12) and central block(11) is tight, use screw driver as crowbar and put it in slotprovided on central block cover to lift the cover.

Step 12. Unscrew connecting nut (44) to dismantle con-necting rod (58) from carrier (15).

WARNING: Under no circumstances should the spring moduleassembly be cut apart, as the spring is preloadedand spring cartridge is welded assembly.

CAUTION: Do not damage O-ring or O-ring grove while removingtop cover (12).

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4.3.2 Spring Module Installation Step 1. To replace existing spring module first removeexisting spring module from actuator refer chapter 4.3 sec-tion 4.3.1 spring module removal. Skip procedure stepsfrom 2 to 4 for single acting.

Step 2. For double acting actuator before starting springmodule installation procedure actuator must be at overtravel position. To over travel the actuator unscrew thestroke adjustment screw (42) refer Chapter 4.3 section 4.3.1from step 2 to 3.

Step 3. Remove hex cap screw/nut (38) with lock washer (37) from housing to remove rear cap.

Step 4. Remove rear cap from central block housing.

Step 5. Align connecting rod (58), connecting nut (44) andconnecting bolt (55) assembly with carrier (15) and screw itin carrier (15). Across flat on connecting bolt should belocate inside the across flat of carrier.

Step 6. Align guide bush (60) with connecting rod and cen-tral block

Step 7. Align spring assembly with actuator assembly andinstall o-ring seal (24) at front face of spring assembly andalso install o-ring (33) at the guide rod (14).

NOTE: Review section 4.4.1 General Disassembly before proceed-ing with spring module disassembly.This procedure is required to convert double acting actua-tor to single acting spring return actuator or to replaceexisting spring module assembly.

NOTE: When removing rear cap from actuator assembly, be care-ful to lose o-ring seals.

NOTE: Clean the connecting rod and apply grease beforeinstallation.

NOTE: Apply grease inside diameter of bearing bush (60)

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Step 8. Install hex. Cap screw / stud thru housing in spring module and tighten to assembly the spring module with actuator.

Step 9. Using special Metso spanners go thru the open endof spring module and rotate the spanner until the initialthread engagement of the lock nut (53) with connectingrod (58) is achieved.

Step 10. Install o-ring seal (63) into the o-ring groove in theoutboard end of spring module and then install rear cap (61).

4.3.3 Pneumatic Cylinder Module Removal

Step 1. Apply pneumatic pressure to front cover (3) torotate actuator by 45 degree.

Step 2. Unscrew connecting nut (44) to dismantle pistonrod (9) from carrier (15)

Step 3. Remove 6 hex cap screw/nut (38) pneumatic cylinder assembly sides with lock washer (37) from central block housing (11).

Step 4. Remove pneumatic cylinder module from actuatorassembly.

CAUTION: Spring module should be removed before starting pneu-matic cylinder module removal procedure.

CAUTION: Maximum pressure to be applied in the above step is 1barg (1 kg/cm2).

NOTE: When removing cylinder module from actuator assembly,be careful to lose o-ring seals.

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4.3.4 Pneumatic Cylinder Module Installation

Step 1. Check to verify that o-ring seals (24), (33) are prop-erly fitted in its seal grove on the front cover (3) and guiderod (14) respectively.

Step 2. Using lifting equipment move the pneumatic cylin-der module up to central block module and align the pistonrod to the centre of central block housing (11).

Step 3. Align piston rod (9), connecting nut (44) and con-necting bolt (20) assembly with carrier (15) and screw it incarrier (15).

Step 4. Install hex cap screw / nut with spring washer to install pneumatic module on central block module.

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4.4 Actuator Disassembly

4.4.1 General Disassembly

Actuator disassembly is written to either completely disas-semble the entire actuator or can be used to disassembleindividual Units as needed (pneumatic cylinder or springcartridge).

When the spring cartridge unit is to be removed it shouldbe removed from the central block unit prior to the Pneu-matic cylinder unit removal or disassembly. Then rotateactuator by 45 degree for Pneumatic cylinder assemblyremoval or disassembly.

To ensure correct reassembly, mark or tag mating surfaces.

Actuator central block base should be rigidly mountedbefore disassembly of any component.

4.4.2 Pneumatic cylinder module disassembly

Step 1. Unscrew and remove hex. Soc. Head cap screw (45)from top cover (12) of central block module.

Step 2. Fitment between top cover (12) and central block(11) is tight, use screw driver as crowbar and put it in slotprovided on central block cover to lift the cover.

Step 3. Apply pneumatic pressure to front cover (3) torotate actuator by 45 degree.

Step 4. Unscrew connecting nut (44) to dismantle pistonrod (9) from carrier (15).

Step 5. Remove two tie rod (8) hex nut (40) with springwasher (39) from outboard side of rear cover (10).

WARNING:It is possible, that the actuator may contain adangerous gas and/or liquids. Ensure that allproper measures have been taken to preventexposure or release of these types of contaminantsbefore commencing any work.

NOTE: Review section 4.4.1 General Disassembly before proceed-ing with pneumatic cylinder module disassemblyIf the actuator model is a N1_S2_D00D_ (two same sizepneumatic cylinder units with one unit mounted on eachside of the central block unit) then do the following stepson both pneumatic cylinder Units simultaneously or com-plete one pneumatic cylinder unit and then repeat section4.3.2 on the second pneumatic cylinder unit.

WARNING: If not already removed disconnect all operatingpressure from actuator pneumatic cylinder.

CAUTION: Do not damage O-ring or O-ring grove while removingtop cover (12).

CAUTION: Spring module should be removed before starting pneu-matic cylinder module removal procedure.

CAUTION: Maximum pressure to be applied in the above step is 1barg (1 kg/cm2).

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Step 6. The fit between cylinder tube (4) and rear cover (10)is very tight. Use screwdriver as crowbar to remove rearcover (10) from cylinder tube (4), remove rear cover fromcylinder tube.

Step 7. When removing cylinder tube (4) off of piston (6),tilt respect to actuator centerline, remove cylinder tubefrom piston (6) and front cover (3).

Step 8. Unscrew hex. soc. Head cap screw and remove itfrom piston (6) and piston rod (9).

Step 9. Remove piston assembly (6) from tie rod.

Step 10. Remove retaining ring (50) of guide bushing toremove guide bushing.

Step 11. Remove guide bushing (7) from opposite side ofpiston.

Step 12. Remove tie rod (8) from front cover. To remove tie roduse two lock nuts assemble them on tie rod and tight themwith each other then turn one lock nut to remove tie rod.

CAUTION: Do not damage o-ring grove when removing rear coverfrom cylinder tube.

NOTE: Use cover taping hole for lifting.

CAUTION: No not damage seals of guide bushing (7) while removingpiston assembly (6).

NOTE: Use piston taping hole for lifting.

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Step 13. Remove 6 hex cap screw/nut (38) pneumatic cylinder assembly sides with lock washer (37) from central blockhousing (11).

Step 14. Remove front cover (3) from actuator assemblywith piston rod (9).

Step 15. Remove piston rod (9) and connecting nut (44)assembly from front side of the front cover (3).

Step 16. Remove retaining ring (36) to remove bearingbush (5).

Step 17. Remove guide bush (5) from front cover (3).

CAUTION: Do not damage seals of bearing bush (5) while removing it

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4.4.3 Central block module disassembly

Step 1. Unscrew and remove hex. Soc. Head cap screw (47) from yoke inserts (19) and remove yoke insert (19) from yoke (13).

Step 2. Remove yoke top bearing (46) from yoke (13).

Step 3. Remove guide rod (14) from central block housing(11).

Step 4. Remove yoke (13) with carrier assembly (15) fromcentral block housing.

Step 5. Put the yoke assembly on clean and dry place andremove top retaining ring (49) from yoke pin (16)

CAUTION: Spring module and pneumatic cylinder module should beremoved before starting central block module removalprocedure.(Review chapter 4.3 section 4.3.1 and 4.3.2).The setting of stroke adjustment screw (42) should bechecked and recorded before stroke adjustment screw areloosen or removed.

NOTE: Stroke adjustment screw will be removed later in this pro-cedure.

NOTE: This procedure considers top cover (12) was removedwhile disassemble the pneumatic cylinder module andspring module.

NOTE: Taping provided on guide rod to pull out the guide rodfrom central block housing.When removing guide rod from actuator assembly, becareful to lose o-ring seals.

18 6 N1 70 en

Ste 6. Remove top roller (17) with yoke pin washer (16)from yoke (13) and yoke pin (16).

Step 7. Hold the yoke pin by hand and unscrew hex. Soc.Head set screw (51) from carrier (15) to remove yoke pin(16) from carrier.

Step 8. Remove yoke pin (16) from bottom side of carrier(15) and then remove carrier (15) from yoke (13).

Step 9. Remove bottom side bearing (46) of yoke (13) fromcentral block housing (11).

Step 10. Unscrew and remove two stroke adjustment screwnuts (43) from stroke adjustment screw (42).

Step 11. Unscrew and remove two stroke adjustmentscrews (42) from housing (11).

6 N1 70 en 19

4.5 Actuator Reassembly

4.5.1 General reassembly

Remove and discard all old seals and gaskets.

Parts should be cleaned to remove all dirt and other foreignmaterial prior to inspection.

Parts should be thoroughly inspected for excessive wear,stress cracking, galling and pitting. Attention should bedirected to threads, sealing surfaces and areas that will besubjected to sliding or rotating motion. Sealing surfaces ofthe cylinder, tie bars and piston rod must be free of deepscratches, pitting, corrosion and blistering or flaking coating.

Before installation apply film of lubricant on all movingparts. Apply film of lubricant on all seals before installinginto seal grooves.

For Spring Module Installation refer chapter 4.3 section4.3.2.

4.5.2 Central block module reassembly

Step 1. Install bottom yoke bearing (46) in central blockhousing (11). Apply grease on bearing seat on central blockhousing for ease of assembly.

Step 2. Install carrier (15) in yoke (13) then insert yoke pinassembly (16) with roller (17) and washer (18) from bottomside for carrier.

Step 3. Install hex. Head cap screw in carrier to locate theyoke pin at the center of carrier.

Step 4. Install top side roller (17), washer (18) and retainingring (49) on yoke pin (16).

CAUTION: Only new seals, which are still within the seal’s expectantshelf life, should be installed into the actuator being refur-bished.

CAUTION:Actuator parts that reflect any of the above listed charac-teristics should be replaced with new parts.

NOTE:Parts and seals used in the actuator will be assembledusing lubricant as identified in unit 1 section 1.8.

NOTE: Review unit 4.5 - section 4.5.1 General Re-assembly beforeproceeding with central block Module reassembly.

NOTE: Lubricate yoke pin (16), roller (17) and carrier (15).

20 6 N1 70 en

Step 5. Install the yoke assembly in the bottom bearing (46)of actuator with bottom side o-ring seal (28)

Step 6. Install top bearing (46) on yoke apply grease layeron bearing.

Step 7. Install yoke insert (19) with o-ring (27) on the top ofyoke with the help of hex. head cap screw (47), apply greaseon top side for yoke insert.

Step 8. Install guide rod (14) in central block housing (11)and carrier (15).

Step 9. Install top cover (12) with o-ring (25) on centralblock housing (11) with the help of hex.soc. head cap screw(45) apply coat of lubricant on o-ring, and meting surfacesbefore installation.

NOTE: Above step should be done after installation of pneumaticcylinder module and spring module

6 N1 70 en 21

4.5.3 Pneumatic cylinder module reassembly

Step 1. Install outer o-ring (32) and rod seal (23) on guidebush, lubricate guide bush. Install assembly in front cover (3).

Step 2. Install retaining ring (36) on guide bush.

Step 3. Install o-ring (24, 31) on front cover apply film of lubricant on cover o-ring then install front cover on central block (11).

Step 4. Install outer o-ring (29) and internal x-ring (35) onguide bush (7), apply lubricant on outer and inner diameterof guide bush (7) then install guide bush in piston (6).

Step 5. Install retaining ring (50) on guide bush (7) to holdthe guide bush in piston (6).

NOTE: The actuator must be in appropriate over travel position

22 6 N1 70 en

Step 6. Apply film of lubricant on tie rod (8) then install tierod on front cover (3).

Step 7. Install piston rod (9) on piston (6) by using soc hexhead cap screw (41).

Step 8. Install piston assembly on tie rod (8), install pistonstrip (22) and piston seal (34) on piston (6) and apply filmlubricant on piston strip and piston seal.

Step 9. Install connecting bolt (20) thru connecting nut (44)on piston rod taping tighten connecting bolt, connectingnut should rotate freely after tightening of connecting bolt.

Step 10. Apply lubricant on cylinder tube (4) then installcylinder tube thru piston (6) on front cover (3).

Step 11. Install o-ring (31, 30) on rear side cover (10) applylubricant on both o-ring then install rear cover in cylindertube (4).

Step 12. Install hex nut (40) with spring washer (39) on tierod to assemble the rear cover (10) on actuator.

6 N1 70 en 23

4.6 Stroke screw adjustment1. Limit stop screw (42a, b) can be adjusted to get desired

close & open setting of the valve respectively..2. With stroke adjustment screw setting of ± 5° can be

achieved in both positions.

3. Loosen nut (43) & rotate stroke adjustment screw incounter clock wise (CCW) direction to set over travel andclock wise (CW) direction to set under travel.

4.7 Field conversions

4.7.1 Fail mode reversal (CW to CCW or CCW to CW)

Step 1. Remove spring module as per Chapter 4.3 - Section4.3.1.

Step 2. Remove pneumatic cylinder module as per Chapter4.3 - Section 4.3.3.

Step 3. Re-install the Spring Module onto the opposite endof central block housing (11), as it was previously locatedper Chapter 4.3 - Section 4.3.2.

Step 4. Re-install the pneumatic cylinder module onto theopposite end of central block housing (11), as it was previ-ously located per Chapter 4.3 - Section 4.3.4.

4.7.2 Converting double acting actuator to spring return

Step 1. Remove end cap as shown in Chapter 4.3 - Section4.3.2 step 2 and 4.

Step 2. If Pneumatic cylinder Module needs to be relocateddue to fail mode requirements (fail counter-clockwise) useChapter 4.3 - Section 4.3.3 for removal and Section 4.3.4 forinstallation.

Step 3. Install the Spring Module on the central block hous-ing (11), as it was previously located per Chapter 4.3 - Sec-tion 4.3.2.

4.7.3 Converting spring return actuator to double acting

Step 1. Remove the Spring module as per Chapter 4.3 - Sec-tion 4.3.1.

Step 2. If Pneumatic cylinder Module needs to be relocateddue to fail mode requirements (fail counter-clockwise) useChapter 4.3 - Section 4.3.3 for removal and Section 4.3.4 forinstallation.

Step 3. Install end cap as shown onto the opposite end ofcentral block housing (11).

5 MALFUNCTIONSTable 4 lists malfunctions that might occur after prolonged use.

Rotate CCW to set over travel Rotate CCW to set under travel

NOTE: Actuators must not undergo fail mode reversal withoutspecific knowledge and acceptance of the resultingtorque output. If a symmetrical yoke is being used duringthe process, then fail mode reversal will not affect thetorque output.

Symptom Possible cause ActionIrregular or slow operation Low supply pressure Make sure that supply pressure complies with minimum torque required by

valve. Check that supply air pipes are large enough.Positioner fault Check positioner operation.Valve fault Check that valve functions properly without actuator.Incorrect actuator rating Contact manufacturer to check rating.Leak in piston or piston rod seal Replace seals.Cylinder damaged by impurities Note installation position recommendation. Replace cylinder if damaged.Worn-out actuator bearings Check bearings. Replace bearings when neccessary.Moving parts corroded in harsh, humid conditions

Replace the corroded parts.

Backlash in joint between actuator and valve Replace parts as necessary.

24 6 N1 70 en

6 TOOLSFor maintenance of the N1 series actuator, you will need a few common tools.

Table 5 List of needed tools

NOTE: 1.*Marked tools are used in single acting actuator only.2.**Marked tools shows sizes in ØXXX-YY format where ØXXX- represents pneumatic bore diameter & YY represents tool size.

6.1 Tightening torque tableTable 6 Tightening torque table

7 ORDERING SPARE PARTS

When ordering spare parts, always include following infor-mation.

□ Type code, sales order number, serial number□ Number of the parts list, part number, name of the part

and required quantityThis information can be found from the identification plateor documents.

Tool style LocationX A B C D E G H

Tool sizeAllen key 47 5 5 5 5 5 5 5 5Allen key 51 4 6 6 6 6 8 8 10Allen key 45 4 10 10 10 10 10 14 12Ext. circlip 49 - - - - - - - -

Jaw spanner 42 13 17 23 23 26 26 30 46Jaw spanner 43 24 36 46 46 55 55 65 70

Allen key 20, 41, *55 8 14 19 19 19 19 19 27Ring spanner 38 13 17 19 19 24 46 46 55

*Allen key 54 5 8 12 12 12 17 19 19**Ring spanner 40 Ø200-12 Ø250-12 Ø300-19 Ø300-19 Ø500-22 Ø600-27 Ø700-27

Ø250-12 Ø300-19 Ø350-19 Ø350-19 Ø600-27 Ø700-27 Ø800-32Ø300-19 Ø350-19 Ø400-22 Ø400-22 Ø700-27 Ø800-32 Ø900-36Ø350-19 Ø400-22 Ø500-22 Ø500-22 Ø800-32 Ø900-36

Ø600-27 Ø900-36Ext. circlip 50 - - - - - - - -

Central frame Part no. Tightening torque in Nm

N1X

38 3641, 44 72

43 30545 elo.6547 15

N1A

38 7241, 44 305

43 102045 12547 15

N1B

38 12541, 44 1020

43 205045 12547 15

N1C

38 12541, 44 1020

43 205045 12547 15

N1D

38 12541, 44 1020

43 356045 12547 15

N1E

38 29041, 44 2050

43 356045 42047 15

N1G

38 29041, 44 1020

43 ---45 12547 15

N1H

38 29041, 44 3560

43 ---45 30547 15

Part no. Pneumatic bore dia. Tightening torque in Nm

40

200 198

250 198

300 1020

350 1020

400 2050

500 2050

600 3560

700 3560

800 --

900 --

NOTE:Use only original spare parts. This ensures proper func-tioning of the actuator.

6 N1 70 en 25

8 EXPLODED VIEWS AND PARTS LIST

8.1 Double acting actuators N1_D00

CYLINDER SIZES FROM 63 TO 150

Spare part category 1: Marked components are the parts of the seal kitSpare part category 2: Marked components are the parts of the repair kitSpare part category 3: Marked components are critical components

24

28

5

21

3

316

2734

30

20

2

8

38

37

43

44

40

4

2510

2317

4216

1514

18

1311

3239

33

1

122919

26

22

79

35

41

36

Part no. DESCRIPTION QTY. SPARE CAT.1 CENTRAL BLOCK 12 CYLINDER 1 33 CYLINDER FRONT COVER 1 34 NAME PLATE 15 BEARING BUSH 1 26 PISTON 17 PISTON ROD 18 CYLINDER REAR COVER 1 39 STUD BOLT 12

10 CENTRAL BLOCK COVER 111 YOKE 1 312 GUIDE ROD 113 CARRIER 114 YOKE PIN 1 315 ROLLER FOR YOKE PIN 216 WASHER 217 YOKE INSERT 118 CONNECTING BOLT PNEUMATIC SIDE 1 319 REAR CAP 120 PISTON STRIP 1 221 ROD SEAL 1 1, 2 22 O-RING 1 1, 2

Part no. DESCRIPTION QTY. SPARE CAT.23 O-RING 1 1, 2 24 O-RING 2 1, 2 25 O-RING 1 1, 2 26 O-RING 1 1, 2 27 O-RING 2 1, 2 28 O-RING 2 1, 2 29 O-RING 2 1, 2 30 QUAD SEAL 1 1, 2 31 EXTERNAL CIRCLIP 132 SPRING WASHER 1233 HEX. NUT 1234 HEX. SOC. HEAD CAP SCREW 435 STROKE ADJUSTMENT SCREW 236 HEX. NUT 237 CONNECTING NUT 238 HEX. SOC. HEAD CAP SCREW 839 RADIAL BALL BEARING 2 240 HEX. SOC. HEAD CAP SCREW 441 WASHER 242 EXTERNAL CIRCLIP 243 SPRING WASHER 844 RIVET 1

26 6 N1 70 en



4826

43

9 24 23 5 3 29 36 8 30 7 35 6 34

50 52

22 231 39 40

10

44

51

47

25

27

414

45

12

19

20

18

46

16

151317

4937

333214

21

38

28

1

11

11

42

Item no. DESCRIPTION QTY. SPARE CAT.

1 CENTRAL BLOCK 1

2 CYLINDER 1 3

3 CYLINDER FRONT COVER 1 3

4 NAME PLATE 1

5 BEARING BUSH 1 2

6 PISTON 1

7 GUIDE BUSH 2 2

8 TIE ROD 2 3

9 PISTON ROD 1

10 CYLINDER REAR COVER 1 3

11 STUD BOLT 12

12 CENTRAL BLOCK COVER 1

13 YOKE 1 3

14 GUIDE ROD 1

15 CARRIER 1

16 YOKE PIN 1 3

17 ROLLER FOR YOKE PIN 2

18 WASHER 2

19 YOKE INSERT 1

20 CONNECTING BOLT PNEUMATIC SIDE 1 3

21 REAR CAP 1

22 PISTON STRIP 1 2

23 ROD SEAL 1 1, 2

24 O-RING 1 1, 2

25 O-RING 1 1, 2

26 O-RING 2 1, 2


27 O-RING 1 1, 2

28 O-RING 1 1, 2

29 O-RING 2 1, 2

30 O-RING 2 1, 2

31 O-RING 2 1, 2

32 O-RING 2 1, 2

33 O-RING 2 1, 2

34 QUAD SEAL 1 1, 2

35 QUAD SEAL 2 1, 2

36 EXTERNAL CIRCLIP 1

37 SPRING WASHER 12

38 HEX. NUT 12

39 SPRING WASHER 2

40 HEX. NUT 2

41 HEX. SOC. HEAD CAP SCREW 4

42 STROKE ADJUSTMENT SCREW 2

43 HEX. NUT 2

44 CONNECTING NUT 2


46 RADIAL BALL BEARING 2 2


48 WASHER 2


50 CIRCLIP 2

51 SPRING WASHER 8

52 RIVET 1

6 N1 70 en 27

8.2 Single acting actuators N1_E_C and N1_E_A



24 25 479 19

41

54

15

46

3251

45

11

1

38

5 3629

40396

3544

82

28733049

484

50

5510

33

31

17

141342

1220

2127

523753 57 26

5623

16

18

34

22

43


1 CENTRAL BLOCK 1

2 CYLINDER 1 3


4 NAME PLATE 1

5 BEARING BUSH 1 2

6 PISTON 1

7 PISTON ROD 1

8 CYLINDER REAR COVER 1

9 STUD BOLT 12


11 YOKE 1 3

12 GUIDE ROD 1

13 CARRIER 1

14 YOKE PIN 1 3


16 WASHER 2

17 YOKE INSERT 1


19 CONNECTING BOLT SPRING SIDE 1 3

20 SPRING COVER FRONT END 1 3

21 E- TUBE 1

22 SPRING COVER REAR END 1 3

23 SPRING RETAINER 1

24 BEARING BUSH 1

25 CONNECTING ROD 1

26 E-COVER REAR CAP 1

27 SPRING 1

28 PISTON STRIP 1 1, 2

29 ROD SEAL 1 1, 2


30 O-RING 2 1, 2

31 O-RING 1 1, 2

32 O-RING 2 1, 2

33 O-RING 1 1, 2

34 O-RING 1 1, 2

35 O-RING 2 1, 2

36 O-RING 1 1, 2

37 O-RING 1 1, 2

38 O-RING 2 1, 2

39 QUAD SEAL 1 1, 2


41 SPRING WASHER 12

42 HEX. NUT 12

43 RIVET 4



46 HEX. NUT 2

47 CONNECTING NUT 2




51 WASHER 2

52 SLOTED ROUND NUT 2



55 SPRING WASHER 8

56 RETAINER GUIDE STRIP 1

57 SPRING WASHER 4

28 6 N1 70 en



1119

47

52

53

58

61

34

17

36

1 32

56

405

9 31

4537 7

4451

43

3949 50

8

2

6263

35

55

57

48

33

63

412

20

16

13

46

15

18

54

14

27

42

26

29

25

59

65

41

60

28

2423

22

10

21

38

30

65


1 CENTRAL BLOCK 1

2 CYLINDER 1 3


4 NAME PLATE 1

5 BEARING BUSH 1 2

6 PISTON 1

7 GUIDE BUSHING 2

8 TIE ROD 3

9 PISTON ROD 1

10 CYLINDER REAR COVER 1 3

11 STUD BOLT 12


13 YOKE 1 3

14 GUIDE ROD 1

15 CARRIER 1

16 YOKE PIN 1 3


18 WASHER 2

19 YOKE INSERT 1


21 CONNECTING BOLT SPRING SIDE 1 3

22 SPRING COVER FRONT END 1 3

23 E- TUBE 1

24 SPRING COVER REAR END 1 3

25 SPRING RETAINER 1

26 BEARING BUSH 1

27 CONNECTING ROD 1

28 E-COVER REAR CAP 1

29 SPRING 1

30 PISTON STRIP 1 2

31 ROD SEAL 1 1, 2

32 O-RING 2 1, 2

33 O-RING 1 1, 2


34 O-RING 2 1, 2

35 O-RING 1 1, 2

36 O-RING 1 1, 2

37 O-RING 2 1, 2

38 O-RING 2 1, 2

39 O-RING 2 1, 2

40 O-RING 1 1, 2

41 O-RING 1 1, 2

42 O-RING 2 1, 2

43 QUAD SEAL 1 1, 2

44 QUAD SEAL 2 1, 2


46 SPRING WASHER 12

47 HEX. NUT 12

48 RIVET 4

49 SPRING WASHER 2

50 HEX NUT 2



53 HEX. NUT 2

54 CONNECTING NUT 2




58 WASHER 2

59 SLOTED ROUND NUT 2




63 SPRING WASHER 8

64 RETAINER GUIDE STRIP 1

65 SPRING WASHER 4

6 N1 70 en 29

9 DIMENSIONS AND WEIGHTS

9.1 Dimensions double acting

MODEL A B ØC D E F M N P R T max U V S

N1X063 239 107 84 99 73 28 M6 9 20 30 125 65 58 1/4'' NPT

N1X080 237 107 100 99 73 28 M6 9 20 30 125 65 58 1/4'' NPT

N1X100 257 107 122 99 73 28 M6 9 20 30 125 65 58 1/4'' NPT

N1X125 285 107 150 99 73 28 M6 9 20 30 125 65 58 1/4'' NPT

N1A0100 385 171 122 187 103 58 M8 12 25 60 200 88 86 1/4'' NPT

N1A0125 411 171 150 187 103 58 M8 12 25 60 200 88 86 1/4'' NPT

N1A0150 395 171 175 187 103 58 M8 12 25 60 200 88 86 3/8'' NPT

N1A200 480 171 210 187 103 58 M8 12 25 60 200 88 86 1/2'' NPT

N1A250 417 171 260 187 130 58 M8 12 25 60 200 88 86 1/2'' NPT

N1A300 456 171 310 187 155 58 M8 12 25 60 200 88 86 3/4'' NPT

N1A350 459 171 360 187 180 58 M8 12 25 60 200 88 86 3/4'' NPT

N1B0250 576 230 260 236 130 75 M10 15 25 80 210 99 105 1/2'' NPT

N1B0300 548 230 308 236 155 75 M10 15 25 80 210 99 105 3/4'' NPT

N1B0350 551 230 360 236 180 75 M10 15 25 80 210 99 105 3/4'' NPT

N1B0400 596 230 416 236 208 75 M10 15 25 80 210 99 105 3/4'' NPT

N1C0300 599 248 308 243 154 90 M10 15 50 90 294 127 107 3/4'' NPT

N1C0350 582 248 360 243 180 90 M10 15 50 90 294 127 107 3/4'' NPT

N1C0400 660 248 416 243 208 90 M10 15 50 90 294 127 107 3/4'' NPT

N1C0500 675 248 522 243 261 90 M10 15 50 90 294 127 107 3/4'' NPT

N1D0300 786 303 308 360 154 108 M12 15 50 150 350 132 121 3/4'' NPT

N1D0350 789 303 360 360 180 108 M12 15 50 150 350 132 121 3/4'' NPT

N1D0400 736 303 416 360 208 108 M12 15 50 150 350 132 121 3/4'' NPT

N1D0500 739 303 522 360 261 108 M12 15 50 150 350 132 121 3/4'' NPT

N1D0600 786 303 624 360 312 108 M12 15 50 150 350 132 121 1'' NPT

N1D0700 819 303 725 360 363 108 M12 15 50 150 350 132 121 1'' NPT

N1E0400 829 333 420 350 210 130 M12 15 50 150 425 192 155 3/4'' NPT

N1E0500 832 333 522 350 261 130 M12 15 50 150 425 192 155 3/4'' NPT

N1E0600 849 333 624 350 312 130 M12 15 50 150 425 192 155 1'' NPT

N1E0700 902 333 725 350 362 130 M12 15 50 150 425 192 155 1'' NPT

N1E0800 930 333 815 350 408 130 M12 15 50 150 425 192 155 1'' NPT

N1E0900 985 333 926 350 463 130 M12 15 50 150 425 192 155 1 1/2'' NPT

'M'X'N' DEEP4 NOS.

BA

X view

P

ØC

R

Z view

D E

F

Wmax

UV

30 6 N1 70 en

9.2 Weights double acting

N1G0600 975 425 625 440 313 160 M12 15 50 150 475 242 177 1'' NPT

N1G0700 1035 425 725 440 363 160 M12 15 50 150 475 242 177 1'' NPT

N1G0800 1065 425 825 440 413 160 M12 15 50 150 475 242 177 1'' NPT

N1G0900 1095 425 925 440 462 160 M12 15 50 150 475 242 177 1 1/2'' NPT

N1G0700-2 1580 425 725 440 363 160 M12 15 50 150 475 242 177 1'' NPT

N1H0600 1187 531 625 515 313 198 M12 15 50 150 600 218 213 1'' NPT

N1H0700 1228 531 725 515 363 198 M12 15 50 150 600 218 213 1'' NPT

N1H0800 1253 531 825 515 413 198 M12 15 50 150 600 218 213 1'' NPT

N1H0900 1305 531 925 515 463 198 M12 15 50 150 600 218 213 1 1/2'' NPT

N1H1000 1251 531 1030 515 515 198 M12 15 50 150 600 218 213 1 1/2'' NPT

N1H0800-2 1934 531 825 515 413 198 M12 15 50 150 600 218 213 1'' NPT

Cyl. Diam 63 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000 1100 1200 1300

Actuator weight, kg

N1X 15 18 22 32 42 53 68 85 - - - - - - - - - - -

N1A 60 70 82 95 110 122 135 160 - - - - - - - - - - -

N1B - - - - - - - 120 131 147 - - - - - - - - -

N1C - - - - - - - 160 176 190 210 - - - - - - - -

N1D - - - - - - - 232 241 260 305 341 422 - - - - - -

N1E - - - - - - - - - 504 510 560 632 811 834 - - - -

N1G - - - - - - - - - - 710 732 817 946 1071 - - - -

N1H - - - - - - - - - - - 1152 1189 1270 1475 - - - -

6 N1 70 en 31

9.3 Dimensions single acting

MODEL A B ØC D E F M N P R T max U V ØY S

N1X063-E1-E5 239 365 84 99 73 28 M6 9 20 30 125 65 58 170 1/4'' NPT

N1X080-E1-E5 237 365 100 99 73 28 M6 9 20 30 125 65 58 170 1/4'' NPT

N1X100-E1-E4 257 365 122 99 73 28 M6 9 20 30 125 65 58 170 1/4'' NPT

N1X125-E1-E2 285 365 150 99 73 28 M6 9 20 30 125 65 58 170 1/4'' NPT

N1A0100-E7 385 570 122 187 103 58 M8 12 25 60 200 88 86 310 1/4'' NPT

N1A0100-E8-E11 385 495 122 187 103 58 M8 12 25 60 200 88 86 225 1/4'' NPT

N1A0125-E7 411 570 150 187 103 58 M8 12 25 60 200 88 86 310 1/4'' NPT

N1A0125-E8-E11 411 495 150 187 103 58 M8 12 25 60 200 88 86 225 1/4'' NPT

N1A0150-E5-E7 395 570 175 187 103 58 M8 12 25 60 200 88 86 310 3/8'' NPT

N1A0150-E8-E11 395 495 175 187 103 58 M8 12 25 60 200 88 86 225 3/8'' NPT

N1A200-E2-E4 480 610 210 187 103 58 M8 12 25 60 200 88 86 360 1/2'' NPT

N1A200-E5-E6 480 570 210 187 103 58 M8 12 25 60 200 88 86 310 1/2'' NPT

N1A250-E1-E4 417 610 260 187 130 58 M8 12 25 60 200 88 86 360 1/2'' NPT

N1A250-E5-E6 417 570 260 187 130 58 M8 12 25 60 200 88 86 310 1/2'' NPT

N1A300-E1-E4 456 610 310 187 155 58 M8 12 25 60 200 88 86 360 3/4'' NPT

N1A300-E5 456 570 310 187 155 58 M8 12 25 60 200 88 86 310 3/4'' NPT

N1A350-E1-E4 459 610 360 187 180 58 M8 12 25 60 200 88 86 360 3/4'' NPT

N1B0250-E1-E6 576 950 260 236 130 75 M10 15 25 80 210 99 105 321 1/2'' NPT

N1B0300-E1-E6 548 950 308 236 155 75 M10 15 25 80 210 99 105 321 3/4'' NPT

N1B0350-E1-E6 551 950 360 236 180 75 M10 15 25 80 210 99 105 321 3/4'' NPT

N1B0400-E1-E6 596 950 416 236 208 75 M10 15 25 80 210 99 105 321 3/4'' NPT

N1C0300-E1-E4 599 1056 308 243 154 90 M10 15 50 90 294 127 107 379 3/4'' NPT

N1C0350-E1-E4 582 1056 360 243 180 90 M10 15 50 90 294 127 107 379 3/4'' NPT

N1C0400-E1-E4 660 1056 416 243 208 90 M10 15 50 90 294 127 107 379 3/4'' NPT

N1C0500-E1-E4 675 1056 522 243 261 90 M10 15 50 90 294 127 107 379 3/4'' NPT

N1D0300-E4 786 1285 308 360 154 108 M12 15 50 150 350 132 121 434 3/4'' NPT

N1D0350-E3-E4 789 1285 360 360 180 108 M12 15 50 150 350 132 121 434 3/4'' NPT

N1D0400-E1-E4 736 1285 416 360 208 108 M12 15 50 150 350 132 121 434 3/4'' NPT

N1D0500-E1-E4 739 1285 522 360 261 108 M12 15 50 150 350 132 121 434 3/4'' NPT

N1D0600-E1-E4 786 1285 624 360 312 108 M12 15 50 150 350 132 121 434 1'' NPT

N1D0700-E1-E3 819 1285 725 360 363 108 M12 15 50 150 350 132 121 434 1'' NPT

NSES500-E3-E4 832 1568 522 350 261 130 M12 15 50 150 425 192 155 454 3/4'' NPT

N1E0600-E1-E4 849 1568 624 350 312 130 M12 15 50 150 425 192 155 454 1'' NPT

N1E0700-E1-E4 902 1568 725 350 362 130 M12 15 50 150 425 192 155 454 1'' NPT

N1E0800-E1-E4 930 1568 815 350 408 130 M12 15 50 150 425 192 155 454 1'' NPT

N1E0900-E1-E3 985 1568 926 350 463 130 M12 15 50 150 425 192 155 454 1 1/2'' NPT

BA

X view

ØC

R

Z view

P

'M'X'N' DEEP4 NOS.

Wmax

ØB

UV

32 6 N1 70 en

9.4 Weights single acting

N1G0600-E1-E4 975 2375 625 440 313 160 M12 15 50 150 475 242 177 550 1'' NPT

N1G0700-E1-E4 1035 2375 725 440 363 160 M12 15 50 150 475 242 177 550 1'' NPT

N1G0800-E1-E4 1065 2375 825 440 413 160 M12 15 50 150 475 242 177 550 1'' NPT

N1G0900-E1-E4 1095 2375 925 440 462 160 M12 15 50 150 475 242 177 550 1 1/2'' NPT

N1G0700-2-E1-E4 1580 2375 725 440 363 160 M12 15 50 150 475 242 177 550 1'' NPT

N1H0600-E3 1187 1480 625 515 313 198 M12 15 50 150 600 218 213 605 1'' NPT

N1H0700-E1 1228 2155 725 515 363 198 M12 15 50 150 600 218 213 684 1'' NPT

N1H0700-E2 1228 1920 725 515 363 198 M12 15 50 150 600 218 213 628 1'' NPT

N1H0700-E3 1228 1480 725 515 363 198 M12 15 50 150 600 218 213 605 1'' NPT

N1H0800-E1 1253 2155 825 515 413 198 M12 15 50 150 600 218 213 684 1'' NPT

N1H0800-E2 1253 1920 825 515 413 198 M12 15 50 150 600 218 213 628 1'' NPT

N1H0800-E3 1253 1480 825 515 413 198 M12 15 50 150 600 218 213 605 1'' NPT

N1H0900-E1 1305 2155 925 515 463 198 M12 15 50 150 600 218 213 684 1 1/2'' NPT

N1H0900-E2 1305 1920 925 515 463 198 M12 15 50 150 600 218 213 628 1 1/2'' NPT

N1H0900-E3 1305 1480 925 515 463 198 M12 15 50 150 600 218 213 605 1 1/2'' NPT

N1H1000-E1 1251 2155 1030 515 515 198 M12 15 50 150 600 218 213 684 1 1/2'' NPT

N1H1000-E2 1251 1920 1030 515 515 198 M12 15 50 150 600 218 213 628 1 1/2'' NPT

N1H1000-E3 1251 1480 1030 515 515 198 M12 15 50 150 600 218 213 605 1 1/2'' NPT

N1H0800-2-E1 1934 2155 825 515 413 198 M12 15 50 150 600 218 213 684 1'' NPT

N1H0800-2-E2 1934 1920 825 515 413 198 M12 15 50 150 600 218 213 628 1'' NPT

N1H0800-2-E3 1934 1480 825 515 413 198 M12 15 50 150 600 218 213 605 1'' NPT

MODEL A B ØC D E F M N P R T max U V ØY S

Cyl. Diam 63 80 100 125 150 200 250 300 350 400 500 600 700 800 900 1000 1100 1200 1300

Actuator weight, kg

N1X 24 30 38 46 60 75 92 110 - - - - - - - - - - -

N1A 95 110 130 146 162 185 205 230 - - - - - - - - - - -

N1B - - - - - - - 220 232 247 - - - - - - - - -

N1C - - - - - - - 354 376 410 441 - - - - - - - -

N1D - - - - - - - 490 554 534 570 640 710 - - - - - -

N1E - - - - - - - - - 906 919 970 1042 1122 1306 - - - -

N1G - - - - - - - - - - 1695 1732 1825 1935 2105 - - - -

N1H - - - - - - - - - - - 2594 2629 2710 2915 - - - -

6 N1 70 en 33

9.5 Attachment dimensionsMOUNTING FACE DIMENSIONS

ActuatorDimensions, mm Mounting

faceG G1 H H1 Q Q1 T U V W

N1X M8 - 12 - 70 - 20 4.76 22.3 37 F07

- M10 - 15 - 102 20 4.76 22.3 37 F10

N1A M16 - 24 - 140 - 40 9.53 44.4 70 F14

N1B M20 - 30 - 165 - 70 19.05 78.3 175 F16

N1C M16 - 24 - 254 - 95 22.23 105.0 204 F25

N1D M20 - 22 - 298 - 105 25.40 116.3 219 F30

N1E M30 - 32 - 356 - 135 31.75 149.0 311 F35

N1G M36 - 45 - 406 - 180 44.45 199.4 383 F40

N1H M36 - 54 - 483 - 200 50.80 222.1 387 F48

VIEW FROM-ZN1B

VIEW FROM-ZN1C TO N1G

VIEW FROM-ZN1H TO N1M

VIEW FROM-ZN1X

SECTION -`B-B'

Ø6.1

20 (N

1X T

O N

1A)

30 (N

1B T

O N

1H)

16

44 6M6

VIEW FROM - `X'N1X TO N1A

BB

80

30

M5x10 DEEP4 NOS.

ØQ

`G' X `H' DEEP8 NOS.

V

ØTxW DEEP

U

ØQ


U

V

ØQ


ØTxW DEEP

ØQ

`G' X `H' DEEP4 NOS. ØTxW DEEP

U

V

VIEW FROM-ZN1A

ØQ


ØQ1

`G1' X `H1' DEEP4 NOS. ØTxW DEEP

V

UØTxW DEEP

U

V

VIEW FROM - `X'N1B TO N1H

BB

130

30

M5x10 DEEP4 NOS.

34 6 N1 70 en

10 TYPE CODEHeavy duty scotch yoke actuator

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12.

N1 B 0250 S 1 G E03 C N / * (NIL) * (NIL)

1. Series

N1 Neles heavy duty actuator

2. Frame size

B

X

A

B

C

D

E

G

H

3. Cylinder size

0250

0063

0080

0100

0125

0150

0200

0250

0300

0350

0400

0500

0600

0700

0800

0900

1000

4. Link type

S Symmertric

5. Cylinder type

1 Single cylinder

2 Dual cylinder

6. Temperature range

G -20°...+80° C / -4° ... 176° FH -20°...+125° C / -4° ... 257° F

7. Single / Double acting

E01 ... E11 Spring to close

D00 Double act.

8. Spring action

C Spring to close

A Spring to open

D Double act.

6 N1 70 en 35

Metso Flow Control Inc.

Europe, Vanha Porvoontie 229, P.O. Box 304, FI-01301 Vantaa, Finland. Tel. +358 20 483 150. Fax +358 20 483 151North America, 44 Bowditch Drive, P.O. Box 8044, Shrewsbury, MA 01545, USA. Tel. +1 508 852 0200. Fax +1 508 852 8172

South America, Av. Independéncia, 2500-Iporanga, 18087-101, Sorocaba-São Paulo, Brazil. Tel. +55 15 2102 9700. Fax +55 15 2102 9748 Asia Pacific, 238B Thomson Road, #17-01 Novena Square Tower B, Singapore 307685. Tel. +65 6511 1011. Fax +65 6250 0830

China, 11/F, China Youth Plaza, No.19 North Rd of East 3rd Ring Rd, Chaoyang District, Beijing 100020, China. Tel. +86 10 6566 6600. Fax +86 10 6566 2583Middle East, Roundabout 8, Unit AB-07, P.O. Box 17175, Jebel Ali Freezone, Dubai, United Arab Emirates. Tel. +971 4 883 6974. Fax +971 4 883 6836

www.metso.com/valves

36 6 N1 70 en

neles® high performance heavy duty scotch yoke...

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