diaphragm valve pneumatic actuator

Name

Control valve

Pressure

150LB/300LB/600LB/900LB1500LB/2500LB

Design standard:

GB/T17213 ,IEC60534 ,GB/T4213

Face to face:

ASNI/ISA.S75.15:1987 ASNI/ISA.S75.16:1987

Flange ends:

ASME B 16.5    ASME B16.47

Inspection standard:

ISA 75.19.01,GB/T17213.4-2005,IEC60531-4:1999

Pneumatic control valve Items

Without Localizer

With Localizer

A

B

C

D

E

A

B

C

D

E

Limit of Intrinsic Error

±15

±10

±8

±6

±5

±4.0

±2.5

±2.0

±1.5

±1.0

Return Difference

10

8

6

5

3

3.0

2.5

2.0

1.5

1.0

Dead Area

8

6

5

4

3

1.0

1.0

0.8

0.6

0.4

Limit of Intrinsic Error

Air to Open

Initial Point

±6.0

±4.0

±4.0

±2.5

±2.5

±2.5

±2.5

±2.0

±1.5

±1.0

End Point

±15

±10

±8

±6

±5

Air to Close

Initial Point

±15

±10

±8

±6

±5

End Point

±6.0

±4.0

±4.0

±2.5

±2.5

Deviation of Nominal Stroke

Metallic Seal

+6

+4

+4

+2.5

+2.5

+2.5

+2.5

+2.5

+2.5

+2.5

Elastic Seal

Measured Stroke >Nominal Strike

Applications

Control flow, pressure

Body type

Globe type control valve

Actuator type

Diaphragm Pneumatic Actuator or Electric Actuator

Two fuction types

Modulating/control type, shut off/on off type

Various mediums

Water, Steam, Oil, Acid

Wide size

1/2''-20'' or larger

Many materials

   Carbon Steel/Stainless Steel,

WCB, WCC, WC6, WC9, 304SS, 316SS, Alloy , LCB ,etc

High pressure

 ANSI 150Lb-2500Lb

Signal input

Electric signal:4-20mA, Gas signal:3-15psi

Flow characteristics

Linear, Equal-percent, Quick-open

Accessories

For Pneumatic Actuator:

Mesto/Simens/YTC Positioner, Air Set, Hand Wheel,

(Explosion proof,or normal)  

For Electric Actuator:

 Hand Wheel, Solenoid Valve, Limit Switch,

 (Explosion proof,or normal)