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B81FM NGT 1/2 NPTF Balanced Pilot Operated Check Valve, Flush Manual Release

Sku#: B81FM

Contact us for availability.
The NGT B81FM is a 1/2 NPTF balanced pilot operated check valve with a flush manual release. Lock your pneumatic device in position when a pressure drop or total loss of pressure occurs.

The NGT B81FM is a 1/2 NPTF balanced pilot operated check valve with a flush manual release.

Basic Operation:

Lock your pneumatic device in position when a pressure drop or total loss of pressure occurs. Manual release for exhausting trapped air before maintaining the system (OSHA Requirement).

  • Immediate Checking
  • Optional Manual Release
  • .0000522 cc/min Leak Rate
  • Low & High Temp

Operating Data:

Max. Pressure: 150 psi
Min. Pilot Pressure: 40 psi
Leak Rate: .0000522 cc/min
Temperature Range: 30 - 150 F
Cycle Rate: 1 cyc./sec. max.
Flow Capacity (Cv): 3.8
Cracking Pressure: 1 - 2 psi
Service: Properly filtered dry air or lubricated air

Available Models:

Model No.No Manual ReleaseManual ReleaseFlush Manual Release
1/2 NPTF B8100 B810M B81FM
3/4 NPTF B12100 B1210M B121FM
1/2 NPTF * B8100-1 B810M-1 B81FM-1
* Pilot port on the same side as the input port.
For a lower pilot pressure add (-K18) to the model # (ex. B810M-K18).
For high temp seals add (-V) to the model # (ex. B810M-V).
For low temp seals add (-T40) to the model # (ex. B810M-T40).