Robertshaw Pneumatic Control System Components
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.
82059, 82440 , 82653
The 83939 logic relays are two-position, three-ported, and three-way. They can be manually or manually/pneumatically actuated.
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.
temperature sensor contains a two-position valve operated by temperature
variations around an integral sensing bulb. It is designed to vent or block
a pneumatic signal when a set point is reached.
explosion-proof I-542 series pressure switch is designed for rigorous
engine-mounted applications. It provides low-cost and dependable protection
against damage to equipment or processes.
The 84370 and 84390 pressure sensors contain weatherproof, snap-acting valves operated bypressure variation around an integral sensing element. These sensors are used to block or vent pneumatic signals.
84370 and 84390 Datasheet
The 85380 valve is designed for use either as a fuel gas valve or a starting air valve. Pneumatically actuated, the vent port will close before the main port will open as pressure is applied to the actuator diaphragm.
The I-530 engine safety control is a dependable safety shutdown device which may be used t monitor lube oil pressure, jacket water temperature and over-speed
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