Soft Start Valves allow flow rates to 8.1 Cv.

Press Release Summary:




PHS Series Solenoid Quick Dump Valves, available in 3/8 in. and 1/2 in. body sizes with flow rates up to 5.7 Cv, shut off incoming pressure while exhausting downstream pressure when solenoid is de-energized. PHSSA Series Auto Pilot Soft Start Valves, available in 3/8 in. body size with 1/4 in., 3/8 in., and 1/2 in. NPT ports, and flow rates up to 3.8 Cv, allow gradual filling of downstream pressure during system start up.



Original Press Release:



Parker Introduces PHS Series Solenoid Quick Dump Valves and PHSSA Series Auto Pilot Soft Start Valve



The Pneumatic Division of Parker Hannifin Corporation has introduced the PHS Series Solenoid Quick Dump Valve for shutting off incoming pressure while rapidly exhausting downstream pressure when the solenoid is de-energized, and a PHSSA Series Auto Pilot Soft Start Valve that automatically allows gradual filling of the downstream pressure during system start up to protect actuators and other equipment from shock.

The PHS Series Solenoid Quick Dump Valve is available in 3/8" and 1/2" body sizes with flow rates up to 5.7 Cv. and a choice of 12, 24 or 48VDC, or 24, 48 or 120VAC operation. The 3/8" body sizes are available with 1/4", 3/8" or 1/2" NPT port threads. The 1/2" body size is available with 3/8", 1/2" or 3/4" NPT port threads. A non-locking manual override is standard, and the bottom plug is tapped to allow the exhaust to be piped away or fitting with a muffler.

The PHSSA Series Auto Pilot Soft Start Valve works by supplying air through an adjustable needle valve that controls the ramp up time to reach switchover pressure. When the downstream pressure
reaches the switchover point (approximately 60% of the supply pressure), the main valve opens. (The valve is not designed for shut off and should always be placed after a shut off valve.) The PHSSA Series valve is available in a 3/8" body size with 1/4", 3/8" and 1/2" NPT ports, and flow rates up to 3.8 Cv. The 1/2" body size is available with 3/8", 1/2" and 3/4" NPT ports, and flow rates up to 8.1 Cv.

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