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Fisher™ C891 Series Internal Valves

C891 valves serve truck and tank inlets and outlets. Users should confirm material suitability.

Fisher C891 Series Internal Valves are typically used on the inlets and outlets of transport trucks and on large stationary storage tanks. These valves are serialized for the service specified with the order. The valves can be used on other compressed gases, but the user should check with the factory to make sure the valve materials are suitable for the intended service.

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Key Features

  • Wide Range of NPT Body Sizes and End Connections
  • Easy to Install and Maintain
  • Only Standard Tools Required for Pressure Adjustment and Orifice Removal
  • Fixed Factor Accuracy (PFM Approved)
  • Application Flexibility including Internal Relief, Non-Relieving, and Secondary Seat™ Protection
  • Secondary Seat Protection provides a secondary seating and disk surface in the event that damage to the primary disk or orifice seat or debris in the flow path inhibit lockup
  • Wide Range of NPT Body Sizes and End Connections
  • Easy to Install and Maintain
  • Only Standard Tools Required for Pressure Adjustment and Orifice Removal
  • Fixed Factor Accuracy (PFM Approved)
  • Application Flexibility including Internal Relief, Non-Relieving, and Secondary Seat™ Protection
  • Secondary Seat Protection provides a secondary seating and disk surface in the event that damage to the primary disk or orifice seat or debris in the flow path inhibit lockup
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