Direct Operated / Hydraulically Pilot Operated Check Valve - Series C4V

*PRODUCT IMAGE IS REPRESENTATIVE PROVIDED BY THE MANUFACTURER. DO NOT MAKE BUYING DECISIONS SOLEY BASED ON THE IMAGE. PLEASE VERIFY SPECIFICATIONS MEET YOUR REQUIREMENTS.

The direct operated and hydraulically pilot operated check valves series C4V are proven components of Parker's check valve product range which ensure a leak-free blocking of the flow. The robust valves are almost universally applicable and provide numerous options.

Markets:
• Industrial

Features/Benefits:
• Versatile - useable for numerous applications
• Proven, robust design - ensures reliable operation
• Good price-performance ratio - fast return of investment
• Short delivery times - no warehousing necessary
• 3 sizes: NG10, NG25, NG32
• Leak-free seat type cartridge
• Max. pressure 350 bar
• Optionally with position control (pilot operated version)

Applications:
• Suitable for general hydraulic applications

Function C4V direct operated
Direct operated check valves C4V allow free flow from A to B. The counter direction is blocked. The C4V series are equipped with a leak-free seat type cartridge.

The pressure arising in port A lifts the poppet from the valve seat and releases the flow to B. In the counter direction, the spring and the pressure on top of the cartridge hold the poppet onto the seat and block the flow.

Function C4V pilot operated
Hydraulically pilot operated check valves series C4V also allow free flow from A to B, the counter-flow direction is blocked. When pressure is applied to control port X, the ring chamber flow from B to A is released. Up to four different pilot control ratios are available.

When no pressure is applied to the X-port, the flow from B to A is blocked, because the pressure in B is also in effect on top of the poppet. Pressurizing the X port relieves the area on top of the poppet to the drain port and allows flow from B to A. The seat design of the valve provides leak-free separation of port A and B in the closed position.

Hydraulically pilot operated valves with position control are available on request.

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SKU	Availability	Price	Weight	Body Material	Mounting Type	Seal Material	Actuation Type	Product Series	Maximum Flow Rate	Division	Maximum Operating Pressure	Maximum Operating Temperature	Minimum Operating Temperature	Configuration	Flow Direction	Connection Size	Connection Type	Cracking Pressure	Seal Material	Port Connection	Actuation Type	Options	Operation Type	Opening Pressure Ratio
016-88725-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	NBR	Hydraulic Pressure	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	2.2 bar	NBR	NG25 / CETOP 08	Hydraulically	Standard	Pilot	10:1
016-88853-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Hydraulic Pressure	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	5.5 bar	NBR	NG10 / CETOP 05	Hydraulically	Standard	Pilot	3:1
016-88853-5	Backordered	POR	2.8 kg	Cast Iron	Subplate	FPM	Hydraulic Pressure	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	5.5 bar	FPM	NG10 / CETOP 05	Hydraulically	Standard	Pilot	3:1
016-88954-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B	n/a	ISO 5781	0.5 bar	NBR	NG10 / CETOP 05	Directly	Standard	Direct	omit
016-88955-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B	n/a	ISO 5781	0.3 bar	NBR	NG10 / CETOP 05	Directly	Standard	Direct	omit
016-88956-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	2.2 bar	NBR	NG10 / CETOP 05	Directly	Standard	Direct	omit
016-88957-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	3.0 bar	NBR	NG10 / CETOP 05	Directly	Standard	Direct	omit
016-88965-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B	n/a	ISO 5781	3.5 bar	NBR	NG25 / CETOP 08	Directly	Standard	Direct	omit
016-88965-5	Backordered	POR	4.6 kg	Cast Iron	Subplate	FPM	Direct	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B	n/a	ISO 5781	3.5 bar	FPM	NG25 / CETOP 08	Directly	Standard	Direct	omit
016-88966-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	0.5 bar	NBR	NG25 / CETOP 08	Directly	Standard	Direct	omit
016-88967-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	FPM	Direct	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	0.3 bar	FPM	NG25 / CETOP 08	Directly	Standard	Direct	omit
016-88968-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B	n/a	ISO 5781	2.2 bar	NBR	NG25 / CETOP 08	Directly	Standard	Direct	omit
016-88970-0	Backordered	POR	4.6 kg	Cast Iron	Subplate	NBR	Hydraulic Pressure	Check Valve	270 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	3.5 bar	NBR	NG25 / CETOP 08	Hydraulically	Standard	Pilot	3:1
016-88975-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	0.5 bar	NBR	NG32 / CETOP 10	Directly	Standard	Direct	omit
016-88976-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	2.2 bar	NBR	NG32 / CETOP 10	Directly	Standard	Direct	omit
016-88977-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	NBR	Hydraulic Pressure	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	6.0 bar	NBR	NG32 / CETOP 10	Hydraulically	Standard	Pilot	3:1
016-89004-0	Backordered	POR	2.8 kg	Cast Iron	Subplate	NBR	Hydraulic Pressure	Check Valve	150 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Hydraulic Pilot Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	4.0 bar	NBR	NG10 / CETOP 05	Hydraulically	Standard	Pilot	8:1
016-89016-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	FPM	Direct	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	2.2 bar	FPM	NG32 / CETOP 10	Directly	Standard	Direct	omit
016-89063-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	3.5 bar	NBR	NG32 / CETOP 10	Directly	Standard	Direct	omit
016-89138-0	Backordered	POR	6.1 kg	Cast Iron	Subplate	NBR	Direct	Check Valve	450 L/min	Industrial Systems Division Europe	350 bar	60 °C	-20 °C	Direct Operated	A to B pressurization of X enables flow from B to A.	n/a	ISO 5781	0.3 bar	NBR	NG32 / CETOP 10	Directly	Standard	Direct	omit

Direct Operated / Hydraulically Pilot Operated Check Valve - Series C4V

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