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JORDAN VALVE
Group: RICHARDS INDUSTRIES
 

Temperature controller
JORDAN VALVE

The MK82 (reverse acting) - the internal pilot valve seats and the main valve seats are up and closed. As the process temperature rises, the fluid in the sensing bulb vaporizes to apply pressure to the pilot diaphragm, thus opening the pilot valve. The upstream pressure passes through the pilot valve, through the pilot port opening the main valve to provide the required cooling action.

The Mark 82FS features a controlled failure option which allows you to predetermine the position of the valve in the event of thermal system failure. It utilizes a vacuum to insure that, if the thermal system fails, the spring pulls down the pilot diaphragm to open the main valve seats on reverse acting valves and close the main valve seats on direct acting valves.
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