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Steel Inline Hydraulic Check Valve, Female 3/4-14 NPT Ports, PSI Cracking Pressure, Up to 20.00 GPM & 5000.00 PSI

Cracking Pressure (psi) 1 to 2.5	CV Factor 5.41	E 1.38	Brand Deltrol Fluid Products	Brand Deltrol Fluid Products	Pack Size 1.00	UOM EA	F 3.25	Materials Steel	Maximum Operating Pressure 5000	Rated Flow 20	Rated Flow 20	Size 3/4	Supplier Part Number EDC35S	Thread 1 3/4-14 NPT	Alternate Part Numbers Alternate Part Number C1CN98, Alternate Part Number FMC604023, Alternate Part Number MI-00276054, Alternate Part Number MINO-00223F21796	Product Weight 0.98 lbs

Product Questions & Answers 5

Product Questions & Answers

Running a hydraulic system at 5000 PSI and need a check valve for a 3/4 inch line. This one rated for that or do I need to keep looking?

Question by: Dustin K on May 24, 2025, 4:23 PM

Rated right up to 5000 PSI for non-shock service, so it fits that application without issue. Flow capacity tops out at 20 GPM and the ports are 3/4-14 NPT female on both ends. Steel body with stainless ball and spring, so it holds up well in hydraulic system environments. Cracking pressure runs between 1 and 2.5 PSI, which means it opens with very little differential and closes cleanly in the reverse direction.

Answer by: Customer Support on May 26, 2025, 6:49 AM

got a cylinder that likes to creep back when the pump’s off. is this the kind of check valve that’ll stop flow from going the wrong way?

Question by: Warren S on Mar 20, 2026, 2:33 PM

Built for one-way flow, it allows free flow in the direction of the arrow and provides a positive check in the opposite direction, which is the usual fix for backflow that lets an actuator drift.

Answer by: Customer Support on Mar 21, 2026, 4:16 PM

what's the cracking pressure on this valve? trying to figure out if it'll open up easy enough for my application without needing much pressure behind it

Question by: Curt J on Apr 11, 2025, 8:39 PM

Cracking pressure runs between 1 and 2.5 PSI, so it takes very little pressure differential to get flow moving through it. That's a pretty low threshold, which works well in systems where you don't want resistance building up just to crack the valve open. Once flow is established, it moves up to 20 GPM at up to 5000 PSI operating pressure.

Answer by: Customer Support on Apr 13, 2025, 10:50 AM

What kind of pressure does it take to get this thing open? I'm dealing with some pretty low-pressure stuff.

Question by: Carl M on Dec 6, 2025, 3:55 PM

This check valve cracks (opens) with a pressure between 1 and 2.5 PSI, making it suitable for low-pressure systems.

Answer by: Customer Support on Dec 8, 2025, 2:55 PM

i’m swapping out an old inline check valve. are the ports on this one 3/4 npt female on both ends?

Question by: Glen P on Sep 28, 2025, 6:20 PM

It comes with female 3/4-14 NPT ports, so it’s set up for standard 3/4 NPT male-threaded connections on each side.

Answer by: Customer Support on Sep 30, 2025, 6:46 AM

Similar Products

Model Number	Size	Thread 1	Materials	Maximum Operating Pressure	Rated Flow	CV Factor	Cracking Pressure (psi)	E	F
EC20S	1/4	1/4-18 NPT	Steel	5000	6	1.4700	1 to 2.5	0.75	2
EDC25B	3/8	3/8-18 NPT	Brass	2000	10	3.3000	1 to 2.5	1	2.5
EDC25S	3/8	3/8-18 NPT	Steel	5000	10	3.3000	1 to 2.5	1	2.5
EDC30B	1/2	1/2-14 NPT	Brass	2000	12	3.6000	1 to 2.5	1.13	2.88
EDC30S	1/2	1/2-14 NPT	Steel	5000	12	3.6000	1 to 2.5	1.13	2.88
EDC35S	3/4	3/4-14 NPT	Steel	5000	20	5.4100	1 to 2.5	1.38	3.25
EC10B	1/8	1/8-27 NPT	Brass	2000	3	0.7500	1 to 2.5	0.63	1.69
EC20B	1/4	1/4-18 NPT	Brass	2000	6	1.4700	1 to 2.5	0.75	2
EC40S	1	1-11-1/2 NPT	Steel	5000	55	9.6000	3 to 5	1.75	4.5
EDC35B	3/4	3/4-14 NPT	Brass	2000	20	5.4100	1 to 2.5	1.38	3.25