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PILOT OPERATED CHECK VALVES

Product Literature

Sales & Marketing Bulletins / Brochures (1)

Pilot operated check valves (also referred to as P.O. check valves), are check valves which can be opened by an external pilot pressure. Thus, P.O.checks, block flow in one direction, like standard check valves, but can be released once an adequate pilot pressure is applied. Free flow is allowed in the reverse direction. P.O.checks are often used to positively lock a dual acting cylinder.

There are two types of pilot operated check valves; threaded cartridge style and pilot piston style. These valves work best when used in conjunction with a control valve that vents the valve ports to tank when centered.

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D3B125NMK2

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	150 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	3C
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	YES

D3B125VMK2

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	150 L/MIN
PRESSURE RATING	420 BAR
SEALS	VITON
CAVITY	3C
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	YES

D4A020N

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	30 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	53-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	YES

D4A020N181

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	30 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	53-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	YES

D4A040NMK2

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	60 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	68-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	YES

D4A055NMK2

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	140 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	78-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO OPEN POPPET
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	NO

D5A040NMK2

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Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	80 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	68-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO CLOSE BALL
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	NO

D5A055NMK2

Click to View Part

Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	140 L/MIN
PRESSURE RATING	420 BAR
SEALS	NITRILE
CAVITY	78-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO CLOSE BALL
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	NO

D5A055VMK2

Click to View Part

Description	Value
PRODUCT TYPE	Valve Threaded Cartridge Check
FLOW RATE	140 L/MIN
PRESSURE RATING	420 BAR
SEALS	VITON
CAVITY	78-1
BODY MATERIAL	Steel
ADDITIONAL DETAIL	PILOT TO CLOSE BALL
TRADE/BRAND NAME	PARKER
Configurator	NO
CAD Drawing Available	NO

PP02SP

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Description	Value
PRODUCT TYPE	Hydraulic Valve Pilot Piston
BODY MATERIAL	Steel
ADDITIONAL DETAIL	Nominal Flow 40 l/min
Configurator	NO
CAD Drawing Available	YES

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