Robertshaw Pneumatic Control System Components
Robertshaw Numerical Index
Model 82059
![Model 82059 receiver indicator relay](images/p_lg82059.gif)
Model 83939 logic relays
The 83939 logic relays are two-position, three-ported, and three-way. They can be manually or manually/pneumatically actuated.
CR100 Series
![CR100 Series](images/p_lgcr100.gif)
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.
CR100 Datasheet
Model 85026
![model 865026](images/p_lg85026.gif)
The 85026
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.
85026 Datasheet
Model I-542
![Model I-542](images/355_542.jpg)
The
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.
I-542 Datasheet
Models 84370 and 84390
![Model 84370 and 84390](images/p_lg84370.gif)
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
Model 85380
![Model 85380 fuel gas or atarting air valve](images/p_lg85380.gif)
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.
85380 Datasheet
Model I-530
![Model I-530](images/p_lgI-530.gif)
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
I-530 Datasheet
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