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Model 2500A High Flow Reversing Relay
Fairchild Biasing Reversing Relay, Model 2500A

Model 2500A High Flow Reversing Relay

Brand: Fairchild Industrial Products

The Rotork Fairchild Model 2500A Bias Reversing Relay provides an outlet pressure that decreases in direct proportion to increases in input signal.

The input signal that acts on the Diaphragm Assembly opposes the Range Spring force and closes the Supply Valve to decrease output pressure, according to the formula (Po = K - Ps); where Po is output pressure, K is the spring constant, set by the screw, and Ps is signal pressure. 

The M2500A pneumatic relay delivers this performance at a flow capacity of 150 SCFM (255 m3/HR), to provide fast response and tight control over your application.
Features

Specifications

Brand

Enclosure, Body Material

  • Aluminum

Exhaust Port

  • Tapped Exhaust

Supply Pressure - Maximum

  • bar: 17
  • kPa: 1,700
  • psig: 250

Sensitivity

  • 1 inH₂O (2.54 cm)

Signal or Output Pressure - Maximum

  • psig: 150 (kPa: 1,000, bar: 10)

Trim Material

Flow Capacity

Diaphragm Material

Supply Pressure Effect

Exhaust Capacity - Relieving Units Only

Ambient Temperature Range

NPT Connection

Pressure Range

Documentation

Data Sheets

  • Data Sheet - Fairchild 2500A Series Biasing Reversing Relay pdf 154 KB

Installation Instructions

  • Installation: Model 2500A High Flow Reversing Relay pdf 278 KB
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