25463-FAIRCH Fairchild Products Model 25 Reversing Relay

25463-FAIRCH
$445.93 / Each
  • Product Type: Reversing Relay
  • Flow Capacity: 40 SCFM (68 M³/HR)
  • Max. Output Pressure: 150 PSIG
  • Max. Supply Pressure: 250 PSIG

Fairchild Model 25 reversing relay with a 2-150psig range and 3/8in FNPT ports

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Product Description

The Model 25 Reversing Relay is designed for applications requiring an output that equals a manually preset spring load minus a variable signal pressure. This high quality unit combines excellent sensitivity with unusually high flow capacity. The Model 25 is ideally suited for a variety of precision control applications, including converting direct acting valves to reverse action, controlling opposite acting valves from a single transmitter, and cushioning cylinder loads. The basic mathematical expression for the Model 25 is PO = K - PS where PO is output pressure, PS is signal pressure and K is the spring constant.

Features

  • Control Sensitivity of 1/8" water column.
  • Balanced supply valve.
  • Aspirator tube design.
  • Separate control chamber isolates.
  • Unit construction.
Benefits

  • Allows for use in high precision applications.
  • Minimizes the effects of supply pressure variation.
  • Compensates for output pressure droop under flow conditions.
  • Isolates the diaphragm from the main flow to eliminate hunting and buzzing.
  • Allows servicing without removal from air line.

Dimension Drawing