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Fisher A31A Cryogenic High Performance Butterfly Valve

The Fisher A31A cryogenic high-performance butterfly valve is designed for extreme temperature and cryogenic applications. It has an extended valve body that can keep the packaging system and actuator away from extreme temperatures. 

Details

FEATURES

1.Developed as a valve/actuator packing with a double D drive shaft to allow easy, direct mounting to a rack and pinion actuator, eliminating the need for external coupling systems.

2.Concentric rotation ensures that the valve disk remains in the closed position, even in the event of line pressure surges or actuator failure.

3.The torque necessary to open and close the valve is the same, regardless of the direction in which the differential pressure is applied.

4.Interchangeability of all parts, including shafts and disks, simplifies service and reduces maintenance costs.


SPECIFICATIONS

Certifications

PED, CRN, Fugitive Emission

Critical Service

General Service

Flow Characteristics

Linear

Material

Carbon Steel, Stainless, Alloy

Operating Temperature

Cryogenic, Standard Temperature, High Temperature

Power Source

Electric, Hydraulic, Pneumatic, Lever, Gear, Electro-Hydraulic

Pressure Class

ASME

Process Connection Type

Flanged, Single Flanged, Double Flanged, Lugged, Wafer

Seat / Seal Type

Metal, Soft

Shutoff Class

Class VI (FCI 70-2)

Standards

B16.34


Pictures show

实物改.jpg



Application area

能源

化工

矿业

医药

水处理