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Pneumatic Head


Robertshaw offers a selection of dependable pneumatic controls for a wide variety of applications. Each model offers unsurpassed quality and protection.


Model 82059


The 82059 is a receiver indicator relay that is used to indicate safe or unsafe conditions of a measured variable. It exhausts actuating pressure from a control system when this variable exceeds its set point.

Model 83939


The 83939 logic relays are two-position, three-ported, and three-way. They can be manually or manually/pneumatically actuated. These multi-function, field-selectable logic relays are the basic building blocks for pneumatic logic circuits.

CR100 Series


The CR100 series ratio relays comprise a group of proportioning units designed for use in industrial pneumatic control systems where the application requires amplifying the volume of control air in a predetermined ratio.

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