Selector Relay - RELAY

Description:

90 / 91 Pressure Selector Relay Model 90/91 Pressure Selector Relay is designed to select the  lower/higher of two signal pressures to provide a continuous output pressure to a control device. Pressure Selector Relays are ideal companion to VPC Valve Pilot Controllers to provide an override function.

Literature:

Fairchild Series 90/91 - Sales

Fairchild Series 90/91 - IOM

Features:

• Compact, lightweight design

• No adjustment necessary

• Commonly used for Pressure Control Override (PCO)

• Bump-less transition between signal selection

Applications:

• Pressure Control Override with Pneumatic Positioners

Models:

• Model 90 – Low Select Relay

• Model 91 – High Select Relay