Pneumatic Control Systems

Pressure Switch Two Input Unit Vent Pressure Control. Input 1 SPST Switch To Start The Fan At Night. Input 2 Is 2 SPST Switches. One Starts The Fan The Other Opens The O.A. Damper In The Day Mode. All Make On Rise P7222-2 P-7222-1

Low Pressure Switch * Pressure Control DPST Adjustable Range 3-30 PSI. Differential 1.5-20 PSI. Switches Open On Pressure Drop.

Volume Booster Relay * Pneumatic Volume Booster Relay. Repeats Low Volume Signal Ratio 1:1 To A High Volume Output.

RESTR.TEE .007 1/4X5/32X5/32

Miniature Pressure Regulator. Adjustable span 1 To 12 PSI. 1/4 Barb Fitting. Must Use Restrictor.

Gradual Switch * Gradual Switch Manual Positioning Output 0 To 20 PSI 300 Degree Knob Rotation. Less Scale Plate.

Selector Switch * Pneumatic Selector Switch. Field Programmable For Up To 4 Ports. 1/4 Barb fittings. Includes Plate And Labels. Max pressure 30 PSI.

Selector Switch * Pneumatic Selector Switch. 5 Ports: 3 Holding 2 Switching. 1/4 Barb Fittings includes Plate And Labels. Max Pressure 30 PSI.

Bulb Thermostat * Pneumatic Low Limit Thermostat. 1 Pipe Proportional. Range 0-270F. 8' Averaging element. Includes Element Holders And Duct Mounting Bracket.

Pneu rigid bulb control * Pneumatic low volume temperature control. 18 rigid stem element. Setpoint 0-270F

Allenhead Adj Tool (each) * Allen head Screwdriver For Adjusting Johnson Pneumatic Thermostats. Purchase in multiples of 30; sold individually.

Thermostat Cover. Horizontal Mount. Blank Face.