Brass Inline Hydraulic Check Valve, Female 3/4-14 NPT Ports, PSI Cracking Pressure, Up to 20.00 GPM & 2000.00 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 Brass	Maximum Operating Pressure 2000	Rated Flow 20	Rated Flow 20	Size 3/4	Supplier Part Number EDC35B	Thread 1 3/4-14 NPT	Alternate Part Numbers Alternate Part Number C1CN97, Alternate Part Number MI-00276040, Alternate Part Number MINO-00223F21788	Product Weight 0.98 lbs

Product Questions & Answers

whats the max flow rate on this brass check valve ive got a system running around 15 gallons per minute and need to make sure it wont choke

Question by: Troy R on Aug 21, 2025, 6:27 AM

Handles up to 20 gallons per minute at pressures reaching 2000 PSI, so your 15 GPM setup should run fine without issues based on those limits.

Answer by: Customer Support on Aug 22, 2025, 7:14 PM

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

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