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HMI – Automação e Instrumentação, Lda.

Rua dos 5 Caminhos, nº 570 4780-382 Santo Tirso PORTUGAL Web: www.hmi.pt

Tel. +351 252 850 501 Fax. +351 300 013 487

Email: [email protected]

FICHA TÉCNICA DE PRODUTO

PRODUCT DATASHEET

Model NDD Gauge pressure transmitterwith remote diaphragm seal

Data Sheet DS/NDD-EN Rev. K

IntroductionThe blind type pressure transmitter mod. NDD is used to measure a gauge pressure and convert it into a proportional pneumatic signal.

Deltapi N Series A complete range ofpneumatic pressure transmitters

DESCRIPTIONThe NDD instrument works on the force-balance principle andconsists of two main units.

The measuring unit comprises a main body which houses abellows unit, connected via a capillary pipe through the positiveconnection port to a separator forming one all-welded systemfilled with a separating liquid. The negative connection port isopen to atmosphere. The bellows unit is clamped in the mainbody forging by means of a flange and it can withstand themaximum overrange on positive side without damage.

The transmission unit converts the differential force appliedto the measuring element into a proportional output pneumaticsignal.The output pressure, generated by a flapper nozzle relay, is fedto a feedback bellows with a rising pressure until the bellowsforce balances that of the measuring element.

Span value continuously adjustable by an internalmicrometric screw.

Zero value adjustable by an external screw.

Mounting in a vertical position on 2in diameter pipe by aspecial bracket.

OPTIONAL EXTRA FEATURESA zero elevation or suppression device allows to set as azero of the transmitter a measured variable value different fromzero.Zero suppression value (S) added to the calibrated span mustnever exceed the upper range limit of measuring element :S + span ≤ M (see table).

Air filter regulator can be directly mounted on the transmitter,with or without pressure gauge, and connected with piping andfittings either in stainless steel or copper.Special versions of air filter regulator and gauges, in stainlesssteel, are available on request.

MEASURINGBELLOWS

A

B

C

D

DIAPHRAGMDIAMETER

3in

2in

2in

2in

SPAN LIMITSmin. and max.

170 and 1700 kPa1.7 and 17 bar

350 and 3500 kPa3.5 and 35 bar

700 and 7000 kPa7 and 70 bar

1400 and 14000 kPa14 and 140 bar

OVERRANGELIMIT

MAXIMUMZERO

SUPPRESSION (S)

MAXIMUMZERO

ELEVATION

100 kPa1 bar100 kPa1 bar100 kPa1 bar100 kPa1 bar

3.5 MPa35 bar7 MPa70 bar14 MPa140 bar28 MPa280 bar

-100 and 2500 kPa-1 and 25 bar-100 and 5000 kPa-1 and 50 bar-100 and 10000 kPa-1 and 100 bar-100 and 20000 kPa-1 and 200 bar

2330 kPa23.3 bar4650 kPa46.5 bar9300 kPa93 bar18600 kPa186 bar

RANGELIMITS

upper and lower (M)

SPECIFICATIONSThe data were obtained from laboratory tests on standard instruments with: carbon steel or AISI 316L body and flange;AISI 316L bellows unit; silicone oil (DC200) filling; gasket: PTFE; calibration span: 800 kPa - 8 bar (bellows A),1700 kPa - 17 bar (bellows B), 3500 kPa - 35 bar (bellows C), 7000 kPa - 70 bar (bellows D).

Air supplynom. 140 kPa (1.4 bar, 20 psi); min. 125 kPa (1.25 bar,18 psi); max. 175 kPa (1.75 bar, 25 psi)

Output signal20 to 100 kPa/0.2 to 1 bar, 3 to 15 psi or 0.2 to 1 kg/cm2

Static air consumption350 Nl/h

Maximum output flow:- with rising output pressure: 30 Nl/min.- with falling output pressure: 40 Nl/min.

Accuracy± 0.5% F.S.D. (typical)

Degree of protection in accordance with IEC 529IP55

Ambient temperature limits-40 and + 120°C

Process temperature limitsSame as fill fluid limits. Refer to table A.204°C (400°F) with PFA antistick (N6W, N6F, N6E)and silicone rubber O-ring (N6U)260°C (500°F) with PTFE O-ring (N6U)

Thermal drift (for ambient temperature variation between-20° C and + 65° C)

Bellows A- span 170 to 340 kPa (1.7 to 3.4 bar): 1%/10°C- span 340 to 1700 kPa (3.4 to 17 bar): 0.5%/10°CBellows B- span 350 to 700 kPa (3.5 to 7 bar): 0.8%/10°C- span 700 to 3500 kPa (7 to 35 bar): 0.4%/10°CBellows C- span 700 to 1400 kPa (7 to 14 bar): 0.6%/10°C- span 1400 to 7000 kPa (14 to 70 bar): 0.3%/10°CBellows D- span 1400 to 2800 kPa (14 to 28 bar): 0.5%/10°C- span 2800 to 14000 kPa (28 to 140 bar): 0.2%/10°C

Body and flange materialCarbon steel, AISI 316

Seal diaphragm materialsAISI 316L, Hastelloy C 276, Tantalum,AISI 316L or Hastelloy C 276 with PFA anti-stick coating,AISI 316L with PFA coating anti-corrosion and anti-stick

Seal filling / working temperature rangeSee table "A"

Cover materialthermoplastic resin

Surface protections- carbon steel body and flange: zinc plating and chrome passivation- AISI 316 body and flange: none

Process connections- Wafer remote seal: 1 1/2in, 2in, 3in ASME150 to 900; DN40, DN50, DN80 DIN ND 10 to 160- flush diaphragm flanged seal: 3in ASME 150 to 900; DN80 DIN ND 16 to 160- extended diaphragm flanged seal: 3in ASME 150-300; DN80 DIN ND 16-40- Union remote seal: 1 1/2in with or without weld bushing or with chemical tee flange

TABLE 'A' - FILL FLUIDS CHARACTERISTICS

FILL FLUIDS(APPLICATION)

SPECIFICATIONS @ 25°C (77°F)OPERATING CONDITIONSThermal

Expansionsx10-3 /°C

Silicone oil DC 200(General purpose)Silicone oil DC 702(High temperature)Silicone oil DC 704(High temperature)Neobee M-20(Food-Sanitary)Glycerin Water (70%)(Food-Sanitary)DC 97-9120PHARMA B GRADE(Food-Sanitary)Inert (Galden)(Oxygen Service)

Pminmbar abs

(psia)

ViscosityKinematic

(cSt)

Specificgravity

Tmin°C (°F)

Tmax °C (°F)@ P min

Tmax °C (°F)@ P >of

0.93

1.07

1.07

0.92

1.08

0.96

1.8

-40(-40)

-7(+20)

20(70)-18(0)-7

(+20)-40

(-40)

-18(0)

200 (390)@ 35 mbar abs315 (600)@ atmosphere340 (645)@ atmosphere200 (390)@ atmosphere93 (200)@ atmosphere200 (390)@ 35 mbar abs

160 (320)@ atmosphere

0.7(0.1)0.7

(0.1)0.7

(0.1)130(1.9)

atmosphere

0.7(0.1)

0.7(0.1)

160(320)200

(390)230

(445)150

(300)93

(200)160

(320)

65(150)

10

45

42

9.8

2.2

50

4.5

1.08

0.78

0.95

1.2

0.36

1.04

1.1

Pneumatic connections- Air supply (in figure ref. A): 1/4 in NPT-F- Output (in figure ref. B): 1/4 in NPT-F

Pressure gaugeBrass with stainless steel case (all stainless steel on request)external diameter 51 mm; 0-200 kPa, 0-2 bar and 0-30 psiindication on 82 mm/260° scale.

Air filter regulatorwith copper or stainless steel piping, as specified.Die cast aluminium alloy with light grey epoxy finish.

Net weight (maximum)8 to 25 kg approx

Packingexpanded polythene box

Standard

de VERSION

BODY AND FLANGE fg

0111

Carbon steelAISI 316

ORDERING INFORMATIONSelect one character or set of characters from each category and specify complete catalog number.In addition quote the required seal model from one of the enclosed N6 ordering information

abc de fg hi j k lm

BASE MODELVERSIONBODY AND FLANGEMEASURING ELEMENTGASKETSOUTPUTEXTRAS

PRODUCT CODE

abc BASE MODEL

Gauge pressure transmitter with remote diaphragm seal NDD

Code

W1

ef SPAN LIMITS (Note 1)

170 and 1700 kPa / 24.6 and 246 psi350 and 3500 kPa / 50.7 and 507 psi700 and 7000 kPa / 101.5 and 1015 psi1400 and 14000 kPa / 203 and 2030 psi

05060708

j

Transmitter with remote diaphragm seal (to be quoted separately as N6W, N6F, N6E or N6U)

CONSTRUCTION

OUTPUT

123456789

3 to 15 psi3 to 15 psi with zero elevation device3 to 15 psi with zero suppression device0.2 to 1.0 kg/cm2

0.2 to 1.0 kg/cm2 with zero elevation device0.2 to 1.0 kg/cm2 with zero suppression device20 to 100 kPa / 0.2 to 1 bar20 to 100 kPa / 0.2 to 1 bar with zero elevation device20 to 100 kPa / 0.2 to 1 bar with zero suppression device

k

According toANSI/ISA S 51.1-1979standard terminology

Pipingmaterial

Air filterregulator

Pressuregauge

EXTRAS

- -- -- -

withwith

- -withwithwithwith

Identificationtag materiallm

Stainless SteelStainless SteelStainless SteelStainless SteelStainless Steel

- -Stainless Steel

CopperStainless Steel

Copper

0210111314

2

Note 1: Multiply by 10 the value in kPa (MPa) to obtain mbar (bar)

One remote seal

d NUMBER OF REMOTE SEAL

ef MOUNTING CONNECTION

1 - 1/2in ASME2in ASME3in ASMEDN40, DIN ND 10-40DN80, DIN ND 10-40DN40, DIN ND 64-160DN80, DIN ND 64-160DN50, DIN ND 10-40DN50, DIN ND 64-160

AISI 316L serrated seat finishAISI 316L smooth seat finishHastelloy C 276Tantalum (max temperature 260°C/500°F) - (NOT VACUUM)AISI 316L ss with PFA anti-stick coatingHastelloy C 276 with PFA anti-stick coatingAISI 316L ss with PFA coating anti-corrosion and antistick (Note)

h DIAPHRAGM MATERIAL

2L3578A

Select one character or set of characters from each category and specify complete catalog number.

N6W

abc BASE MODELCode

Wafer remote seal

1

F1F2F3D1D3D7D82122

N6W WAFER REMOTE SEAL

g

Same as diaphragm

OTHER WETTED MATERIAL (Not diaphragm)

0

(only available withcode F3 at position "ef")

i

NoneEXTENSION LENGTH

0

CAPILLARY - Fill fluid

ACDGPNQ

Silicone oil (DC 200)Silicone oil (DC 702)Silicone oil (DC 704)Glycerin/WaterInert FluidNeobee M-20DC97 - 9120 PHARMA B-GRADE

j

SYSTEM LENGTH m(feet)

03050708101213151720253035

1 (3)1.5 (5)2 (7)2.5 (8)3 (10)3.5 (12)4 (13)4.5 (15)5 (17)6 (20)7.5 (25)9 (30)10 (35)

kl

m

None

CERTIFICATION

0

no

None

OPTIONS00

Note: not available with 1-1/2in or DN40 connection code F1, D1, D7 at position "ef"

One remote seal


AISI 316L ssHastelloy C 276AISI 316L ss with PFA anti-stick coatingHastelloy C 276 with PFA anti-stick coatingAISI 316L ss with PFA coating anti-corrosion and antistick

h DIAPHRAGM MATERIAL2378A

N6E

abc BASE MODELCode

Flanged extended diaphragm seal

1

g

AISI 316L ssHastelloy C (only available with diaphragm material code 3, 8 and A at position "h")


23

(only available with 3in ANSI CL 150/300connection, code K3,S3,L3,36 at position "ef")

i

2in4in6in

EXTENSION LENGTH

246


ACDGPN

Silicone oil (DC 200)Silicone oil (DC 702)Silicone oil (DC 704)Glycerin/WaterInert FluidNeobee M-20

j


03050708101213151720253035

1 (3)1.5 (5)2 (7)2.5 (8)3 (10)3.5 (12)4 (13)4.5 (15)5 (17)6 (20)7.5 (25)9 (30)10 (35)

kl

m

None

CERTIFICATION

0

no

None

OPTIONS

00


3in ASME CL1503in ASME CL1503in ASME CL3003in ASME CL300DN80, DIN ND 16DN80, DIN ND 16DN80, DIN ND 40DN80, DIN ND 40

K3S3L3364C4M4D4N

MaterialCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ss


N6E FLANGED EXTENDED DIAPHRAGM SEAL

One remote seal


N6F

abc BASE MODELCode

Flanged flush diaphragm seal

1

g

Same as diaphragm


0

i

None

EXTENSION LENGTH

0


ACDGPNQ

Silicone oil (DC 200)Silicone oil (DC 702)Silicone oil (DC 704)Glycerin/WaterInert FluidNeobee M-20DC97 - 9120 PHARMA B-GRADE

j

SYSTEM LENGTH m(feet)03050708101213151720253035

1 (3)1.5 (5)2 (7)2.5 (8)3 (10)3.5 (12)4 (13)4.5 (15)5 (17)6 (20)7.5 (25)9 (30)10 (35)

kl

m CERTIFICATION

0

no

None

OPTIONS

00

Compliance to NACE class II bolting, according to specification MR0175, latest revision


N6F FLANGED FLUSH DIAPHRAGM SEAL

None

AISI 316L serrated seat finishAISI 316L smooth seat finishHastelloy C 276Tantalum (max temperature 260°C/500°F) - (NOT VACUUM)AISI 316L ss with PFA anti-stick coatingHastelloy C 276 with PFA anti-stick coatingAISI 316L ss with PFA coating anti-corrosion and antistick


2L3578A

(only available with 3in connection codeK3,S3,L3,36,37,38,39,3A at position "ef")

ef MOUNTING CONNECTIONK3S3L3363738393A4C4M4D4N4E4F4H4G4K4L

MaterialCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ssCarbon steelAISI 316 ss

3in ASME CL1503in ASME CL1503in ASME CL3003in ASME CL3003in ASME CL6003in ASME CL6003in ASME CL9003in ASME CL900DN80, DIN ND 16DN80, DIN ND 16DN80, DIN ND 40DN80, DIN ND 40DN80, DIN ND 64DN80, DIN ND 64DN80, DIN ND 100DN80, DIN ND 100DN80, DIN ND 160DN80, DIN ND 160

One remote seal



Union connection

AISI 316L ssHastelloy C 276


23


N6U

abc BASE MODELCode

Threaded union connection seal

1

U1

N6U THREADED UNION CONNECTION SEAL

g

Same as diaphragm


0

i

None

EXTENSION LENGTH

0


ACDGPN

Silicone oil (DC 200)Silicone oil (DC 702)Silicone oil (DC 704)Glycerin/WaterInert FluidNeobee M-20

j


0305070810

1 (3)1.5 (5)2 (7)2.5 (8)3 (10)

kl

m

Silicone rubberPTFE

PROCESS O-RING MATERIAL

34

no

No optionsAISI 316 ss weld bushingChemical tee flange

OPTIONS

00W1W2

Compliance to NACE class II bolting, according to specification MR0175, latest revision

• N6W Remote wafer seal

SIZEDIMENSIONS mm (in)

L

139.7 (5.5)

139.7 (5.5)

139.7 (5.5)

139.7 (5.5)

139.7 (5.5)

139.7 (5.5)

H

23 (0.9)

23 (0.9)

23 (0.9)

23 (0.9)

23 (0.9)

23 (0.9)

B dia)A (dia)

73.2 (2.87)

92.1 (3.62)

127 (5)

88 (3.46)

102 (4.02)

138 (5.43)

47 (1.85)

60 (2.36)

89 (3.5)

47 (1.85)

60 (2.36)

89 (3.5)

1-1/2 in

2 in

3 in

DN 40

DN 50

DN 80Process

Connection

Capillary toinstrument

Raised FaceFlange

B

H

L

A

To remoteseal

MOUNTING DIMENSIONS

Wafer seal maximum working pressure16 MPa, 160 bar, 2320 psi but not greater than thebackup flange rating (not supplied)

• N6E Remote flanged extended diaphragm seal

158 (6.22)

Capillary toInstrument

2", 4" or 6"Insertionlength is available

E

C A B

F G

D

3in ASME CL 1503in ASME CL 3003in ASME CL 6003in ASME CL 900DN80 DIN ND16DN80 DIN ND40DN80 DIN ND64DN80 DIN ND100DN80 DIN ND160

DIMENSIONS mm (in)SIZE/RATING

158 (6.22)


B

F G

C

E

A D

• N6F Remote flanged flush diaphragm seal

488888888

N° ofholes

9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)9.5 (0.37)

Gflush

89 (3.5)89 (3.5)89 (3.5)89 (3.5)89 (3.5)89 (3.5)89 (3.5)89 (3.5)89 (3.5)

127 (5)127 (5)127 (5)127 (5)138 (5.43)138 (5.43)138 (5.43)138 (5.43)138 (5.43)

B (dia)

152.5 (6)168.5 (6.63)168.5 (6.63)190.5 (7.5)160 (6.3)160 (6.3)170 (6.7)180 (7.08)180 (7.08)

C (dia) D (dia)

190.5 (7.5)210 (8.26)210 (8.26)241 (9.48)200 (7.87)200 (7.87)215 (8.46)230 (9.05)230 (9.05)

20 (0.79)22 (0.86)22 (0.86)26 (1.02)18 (0.71)18 (0.71)22 (0.86)26 (1.02)26 (1.02)

E (dia)

24 (0.94)28.5 (1.12)32 (1.26)38.5 (1.51)20 (0.79)24 (0.94)28 (1.1)32 (1.26)36 (1.42)

F

Flanged seal maximum working pressure:ASME CL 150: 2 MPa, 20 bar, 290 psiASME CL 300: 5 MPa, 50 bar, 725 psiASME CL 600: 10 MPa, 100 bar, 1450 psiASME CL 900: 16 MPa, 160 bar, 2320 psiDIN ND 16: 1.6 MPa, 16 bar, 230 psiDIN ND 40: 4 MPa, 40 bar, 580 psiDIN ND 64: 6.4 MPa, 64 bar, 930 psiDIN ND 100: 10 MPa, 100 bar, 1450 psiDIN ND 160: 16 MPa, 160 bar, 2320 psi

extended

72 (2.83)72 (2.83)

72 (2.83)72 (2.83)

A (dia)

• N6U Remote union connection seal

UNION CONNECTION SEALWITH CHEMICAL TEE FLANGE

UNION CONNECTION SEALWITH WELD BUSHING

127 (5) 25 (1)

12 (0.47)

dia

96

(3.7

8)

dia

42

(1.6

5)

dia

127

(5)

DiaphragmSurface

Capillary toinstrument

Chemical TeeFlange

dia

19

(0.7

5)

UnionConnection

Seal

8 Mounting Holes dia 8.7 (0.34)Equally Spaced on 111.125 (4.37)

Bolt Circle


dia

19

(0.7

5) dia

41

(1.6

1)

dia

42

(1.6

5)

dia

51

(2)

UnionConnection

29 (1.14)

140 (5.5)

16 (0.63)

O-Ring

9 (0.35)14 (0.55)

45°

5 (0.19)

5 (0.19)

4 (0.16)

dia

42

(1.6

5)

2 (0.08)

54 (2.12) - 16N210 (0.39) Full Thread

130 (5.13) 25 (1)

WeldingBushing

dia

42

(1.6

5)

dia

89

(3.5

)

dia

19

(0.7

5)


UnionConnection

57 (2.25)

DiaphragmSurface

Union seal maximum working pressureUnion connection: 10.3 MPa, 103 bar, 1500 psi;With chemical tee flange: 2 MPa, 20 bar, 300 psi

HMI – Automação e Instrumentação, Lda.

Rua dos 5 Caminhos, nº 570

4780-382 Santo Tirso

PORTUGAL

Web: www.hmi.pt

Tel. +351 252 850 501

Fax. +351 300 013 487

Email: [email protected]

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Measurement

DS

/ND

D-E

N

Rev

. K

0

9.20

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