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Steel Inline Hydraulic Check Valve, Male 1/4-18 NPT Ports, PSI Cracking Pressure, Up to 2.50 GPM & 3000.00 PSI

A 1.38	B 0.63	Cracking Pressure (psi) 1 to 2.5	CV Factor 0.56	Brand Deltrol Fluid Products	Brand Deltrol Fluid Products	Pack Size 1.00	UOM EA	Materials Steel	Maximum Operating Pressure 3000	Rated Flow 2.50	Rated Flow 2.5	Size 1/4	Supplier Part Number CMMQ20S	Thread 1 1/4-18 NPT	Alternate Part Numbers Alternate Part Number C1CN39, Alternate Part Number MI-00907666, Alternate Part Number MINO-00223X11574	Product Weight 0.08 lbs

Product Questions & Answers 2

Product Questions & Answers

does this valve work for standard hydraulic lines runnin at 3000 psi, or is that pushin it too hard?

Question by: Clint M on Aug 28, 2025, 5:45 PM

3000 PSI is right at the rated maximum for non-shock service, so as long as your system isn't throwing pressure spikes, you're well within spec. The steel body is built for hydraulic use at that pressure level. Just keep in mind the non-shock limitation. Surge or hammer conditions would put you outside what this valve is rated for.

Answer by: Customer Support on Aug 30, 2025, 6:55 AM

What kind of systems would this steel check valve be good for? I'm running hydraulics, not pneumatics.

Question by: Ronnie G on May 13, 2025, 1:47 PM

Being made of steel, this check valve is specifically designed for hydraulic systems. Brass valves are better suited for pneumatic and lower-pressure setups.

Answer by: Customer Support on May 15, 2025, 9:37 AM

Similar Products

Model Number	Size	Thread 1	Materials	Maximum Operating Pressure	Rated Flow	CV Factor	Cracking Pressure (psi)	A	B
CMMQ20S	1/4	1/4-18 NPT	Steel	3000	2.5	0.5600	1 to 2.5	1.38	0.63
CMMQ20B	1/4	1/4-18 NPT	Brass	2000	2.5	0.5600	1 to 2.5	1.38	0.63
CMMQ30B	1/2	1/2-14 NPT	Brass	1000	10	2.7100	1 to 2.5	2.06	0.88