Rotork Positive Bias Relay (M15)
M15

- Detailed introduction
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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