Check valves

Robust design for efficient and compact load holding

Explore our extensive check valve collection, featuring cartridge-style options (both standard and reverse direction) and in-line varieties. Our check valves and pilot-operated check valves aren't just compact and economical – they deliver optimal load holding performance. With numerous sizes and schematic options, we tailor our valves to meet your specific flow and pressure application needs. Rest easy with our robust, low-leakage designs, ensuring you can confidently apply them to your machine with unmatched reliability.

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Features and benefits

Flow rating up to 310 l/min [82 US gal/min]

Pressure rating up to 420 bar [6000 psi]

Efficiency

Cartridge-style designs offer low pressure drop, reducing heat generation and improving efficiency
Standard direction valves can be combined with a pilot piston to create an economical ‘pilot-to-open’ function

Reliability

Cartridge check valves are designed for durability and reliability, ensuring a long operational life in hydraulic systems. This reliability is crucial for maintaining the overall efficiency and performance of the system.

Functionality

Direct-operated check valves can be used as conventional check valves or as low-pressure relief valves.
Pilot-operated check valves can be used as position load locking valves or as an alternative to some counterbalance valves.

Product range

Normal direction check valves

Product Code	Cavity	Flow	Pressure
CV3-4	C-4-2	7.6 l/min [2 US gpm]	350 bar [5000 psi]
CV08-NP	SDC08-2	38 l/min [10 US gpm]	350 bar [5000 psi]
CV10-NP	SDC10-2	80 l/min [21 US gpm]	350 bar [5000 psi]
CV11-12	C-12-2	114 l/min [30 US gpm]	350 bar [5000 psi]
CV11-16	SDC16-2	151 l/min [40 US gpm]	350 bar [5000 psi]
CV2-20	SDC20-2	227 l/min [60 US gpm]	210 bar [3000 psi]
3CA300	SDC20-2	300 l/min [80 US gpm]	350 bar [5000 psi]
CV6-4	C-4-2	7.5 l/min [2 US gpm]	350 bar [5000 psi]
CV6-10	SDC10-2	76 l/min [20 US gpm]	350 bar [5000 psi]
RV4-10	SDC10-2	45 l/min [12 US gpm]	350 bar [5000 psi]

In-line check valves

Product Code	Cavity	Flow	Pressure
RS 06	N/A	30 l/min [8 US gpm]	350 bar [5000 psi]
RS 10	N/A	60 l/min [16 US gpm]	350 bar [5000 psi]
RS 13	N/A	100 l/min [26 US gpm]	315 bar [4600 psi]
RS 19	N/A	140 l/min [37 US gpm]	280 bar [4000 psi]
RS 25	N/A	200 l/min [53 US gpm]	240 bar [3500 psi]
FPR11/4	N/A	220 l/min [58 US gpm]	240 bar [3600 psi]
FPR11/2	N/A	310 l/min [82 US gpm]	210 bar [3000 psi]

Reverse direction check valves

Product Code	Cavity	Flow	Pressure
CP104-2	CP04-2	4.5 l/min [1.2 US gpm]	350 bar [5000 psi]
CP108-2	SDC08-2	20 l/min [5 US gpm]	350 bar [5000 psi]
CP100-2	SDC10-2	50 l/min [13 US gpm]	350 bar [5000 psi]
CP101-2	CP12-2	75 l/min [20 US gpm]	350 bar [5000 psi]
CP102-2	SDC16-2	150 l/min [40 US gpm]	350 bar [5000 psi]
CP103-2	SDC20-2	265 l/min [70 US gpm]	350 bar [5000 psi]

Pilot to open check valves

Product Code	Cavity	Flow	Pressure
RPC 04	NCS04/3	20.5 l/min [5 US gpm]	350 bar [5000 psi]
SPC2-8	SDC08-3	19 l/min [5 US gpm]	240 bar [3500 psi]
RPC 06	NCS06/3	35 l/min [9 US gpm]	350 bar [5000 psi]
SPC2-10	SDC10-3	23 l/min [6 US gpm]	210 bar [3000 psi]
RPC 12	NCS12/3	90 l/min [24 US gpm]	315 bar [4600 psi]
4CK30	A6610	30 l/min [8 US gpm]	350 bar [5000 psi]
4SK30	A20090-T11A	30 l/min [8 US gpm]	350 bar [5000 psi]
POC1-10	SDC10-3S	60 l/min [15 US gpm]	350 bar [5000 psi]
4CK90	A12336	90 l/min [24 US gpm]	350 bar [5000 psi]
4SK90	A20092-T2A	90 l/min [24 US gpm]	350 bar [5000 psi]
4CKD90	A12336	90 l/min [24 US gpm]	420 bar [6000 psi]
4CK120	A877	120 l/min [32 US gpm]	350 bar [5000 psi]
4SK140	A20094-T17A	140 l/min [37 US gpm]	350 bar [5000 psi]
4CK300	A6935	300 l/min [80 US gpm]	350 bar [5000 psi]
RPV 06	NCS06/4	30 l/min [8 US gpm]	315 bar [4600 psi]

Pilot to close check valves

Product Code	Cavity	Flow	Pressure
5CK30	A6610	30 l/min [8 US gpm]	350 bar [5000 psi]
5CK120	A877	120 l/min [32 US gpm]	350 bar [5000 psi]
5CK300	A6935	250 l/min [65 US gpm]	350 bar [5000 psi]

Dual pilot operated check valves

Product Code	Cavity	Flow	Pressure
DPC2-8	SDC08-4	19 l/min [5 US gpm]	240 bar [3500 psi]
4CKKT50	A12744	25 l/min [7 US gpm]	300 bar [4300 psi]
CP410-1	Catalog HIC	80 l/min [21 US gpm]	210 bar [3000 psi]

Documents

Documents
Type	Name	Language	Valid for	Updated	Download	File type
User guide	ICS Check Valves Technical Information	English	Multiple	15 Mar, 2024	5.8 MB	.pdf

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