Relays and Switches

Pneumatic Signal Transmitter * Signal Transmitter Used To Repeat Or Select The Highest Or Lowest Of Two Signals. Ratio 1:1 Maximum Pressure 25 PSIg.

Selector Pneumatic Relay * Pneumatic Signal Limiter. Imposes High Or Low Limits. Internal Regulator Must Be Moved From High To Low Sides Depend- Upon The Application You Use.

Pneu Hi & Low Signal Limiter * Pneumatic High And Low Signal Limiter. Output Equals Set point Limit As Signal Drops Or Rises Beyond The Setpoint. Low Limit Minimum 2 PSI High Limit Minimum 3 PSI. Max Press 25 PSI.

Two position cumulator converts a proportional input to two position. Adjustable cut in and cut out. Factory set approx 9 PSI cut in. Cut out 8.5 PSI.

Pressure Control Close Dif. * Pressure Control Close Differential SPDT switch Adjustable Range 2-20 PSI. Fixed Dif. .25 PSI. 1/8 NPT Connection With Mounting Bracket.

Low Pressure Control 2 Stage * Pressure Control Two SPDT Switches. Two Stage. Differential Between Switches Is 4 Lbs. Range 3-20 PSI. 1/4 Barb Connection For Wall Or Panel Mounting.

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.

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.