Snap Acting Relay

Rotork Positive Bias Relay (M15)

M15

Rotork Positive Bias Relay (M15)

The Model 15 Positive Bias Relay is designed for applications that require an output pressure that is the sum of a controlled input signal plus a fixed bias. This pneumatic relay provides an output pressure that represents the input signal pressure plus a preset bias. Mathematically Po = Ps + K where Po is output pressure, Ps is signal pressure and K is the spring constant. This unit, available in several bias range configurations to meet a variety of output requirements, offers excellent sensitivity and high flow capacity in a small volume. The Fairchild Model 15 Pneumatic Biasing Relay is well suited to a variety of control applications, including range shifting, and tension control, and pressure control from a remote location.

Features:

Sensitive to 1/4" Water Column variation

Balanced Supply Valve

Aspirator Tube

Flow Capacity of 40 SCFM (68 m3/HR)

Separate Control Chamber

Mounting Bracket available

Benefits:

Permits use in high precision applications

Minimises the effects of supply pressure variation

Minimises downstream pressure droop under flow conditions

Allows use in applications requiring high flow and/or fast response

Isolates the diaphragm from the main flow, eliminating hunting and buzzing

Quick and easy field installation


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