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Brass Inline Flow Control Valve, Female 3/8-18 NPT Ports, Up to 5.00 GPM & 2000.00 PSI

A 1.06	Adjustment No	B 1.81	C 0.34	Check Valve No	CV Factor 0.78	D 2.75	Brand Deltrol Fluid Products	Brand Deltrol Fluid Products	Pack Size 1.00	UOM EA	Materials Brass	Maximum Operating Pressure 2000	Rated Flow 5	Rated Flow 5	Size 3/8	Supplier Part Number F25B	Thread 1 3/8-18 NPT	Alternate Part Numbers Alternate Part Number C1CP46, Alternate Part Number HYVA10016, Alternate Part Number MI-00275475, Alternate Part Number MINO-00223F21184	Product Weight 0.72 lbs

Product Questions & Answers 1

Product Questions & Answers

Got a pneumatic system running at around 1800 PSI and need to control flow in one direction only, will this valve hold up to that kind of setup?

Question by: Stan M on Dec 11, 2025, 11:01 AM

Brass construction makes this one a solid fit for pneumatic systems and lower-pressure hydraulic applications. It's rated up to 2000 PSI for non-shock service, so 1800 PSI falls within that range comfortably. The check built into the design allows controlled flow one way and free flow the other, which sounds like exactly what you're describing. Just keep in mind the pressure rating is for steady-state service, not shock or surge conditions.

Answer by: Customer Support on Dec 12, 2025, 1:20 PM

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Model Number	Size	Thread 1	Materials	Maximum Operating Pressure	Rated Flow	CV Factor	A	B	C	D
F10B	1/8	1/8-27 NPT	Brass	2000	1.5	0.2000	0.69	0.88	0.2	1.75
F20B	1/4	1/4-18 NPT	Brass	2000	3	0.4300	0.88	1	0.36	2.38
F20S	1/4	1/4-18 NPT	Steel	5000	3	0.4300	0.88	1	0.36	2.38
F25B	3/8	3/8-18 NPT	Brass	2000	5	0.7800	1.06	1.81	0.34	2.75
F25S	3/8	3/8-18 NPT	Steel	5000	5	0.7800	1.06	1.81	0.34	2.75
F30S	1/2	1/2-14 NPT	Steel	5000	8	1.2400	1.31	1.44	0.47	0.19