Parker Premier Valve, GP457 is a General Purpose 1/2 inch valve, brass body, 1-50 psi for steam. The Parker After Market GP 457 has a Cv of 3.35 and a maximum temperature of 300. Type 4 two-way solenoid valves have a brass body with a stainless steel seat insert and an ethylene propylene (EPT) diaphragm and seals. The GP 457 requires a G23 coil for operation.These valves are recommended for steam service up to 50 psig saturated steam.
Note: Do not apply on systems where steam is regulated to 50 psig or below from above 50 psig. Damage to the valve will result.
Parker model number is GP 457 ( 70564 ).
AFTERMARKETPARKER
The G23 coil is NOT included with the valve, see coil section.
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