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Brass Inline Easy Read Needle Valve, Female 1/8-27 NPT Ports, Up to 4.50 GPM & 2000.00 PSI

Description & Features

The Brass Inline Easy Read Needle Valve Female 1/8-27 NPT Ports Up to 4.50 GPM & 2000.00 PSI offers precise control of flow with color coding and numerical readout ensuring accurate and repeatable settings. Designed for pneumatic systems and lower pressure hydraulic systems this valve is constructed from durable brass for reliable performance.

Featuring a metal knob and stem the valve can be finely adjusted within a small fraction of a turn providing meticulous control over fluid flow. The needle is constructed from brass while Viton o-rings and Teflon washer seals are standard components further enhancing durability and sealing effectiveness.

The valve supports a maximum operating pressure of 2000 PSI and a rated flow of up to 4.50 GPM with flow adjustments possible even under pressure. The female 1/8-27 NPT ports ensure compatibility with standard fittings while the locking set screw maintains settings securely.

Temperature resistance ranges from -15F to 400F making it suitable for various operational environments. The combination of robust construction and precise adjustment capabilities makes this needle valve an essential component in controlled fluid flow applications.

MPN: EN10B

Supplier Part Number: EN10B

Specifications

Brand Deltrol Fluid Products	a Dimensions 1.28 in	Actuator Type Knob	b Dimensions 0.63 in	Body Material Brass	Color Ring Anodized Aluminum	Configuration In-Line	Connection Type FNPT	d Dimensions 1.44 in	Disc Material Brass	Finish Anodized	grp Materials Body: Available in Brass, Carbon Steel or Stainless Steel (1 in Size Available in Naval Bronze Or Ductile Iron), Needle: Brass on Brass Valves, Stainless Steel on Steel and Stainless Steel Valves. O-ring: FKM is Standard (Other Materials Available), Washe	Handle Material Aluminum	Number of Handles 1	Number of Ports/Ways 2	Packing Material PTFE	Seal Material FKM/PTFE	Seat Material FKM/PTFE	Series EN Series	Set Screw Steel	Softgoods Material FKM/PTFE	Stem Material Brass	Thread 1 1/8-27 NPT	Trim Material Brass

Similar Products

Model Number	Size	Thread 1	Materials	Maximum Operating Pressure	Rated Flow	CV Factor	a Dimensions	b Dimensions	d Dimensions
EN20B Hydraulic/Pneumatic Needle Valve	1/4	1/4-18 NPT	Brass	2000	10	0.5100	1.41 in	3/4 in	2.56 in
EN20S Hydraulic/Pneumatic Needle Valve	1/4	1/4-18 NPT	Steel	5000	10	0.5100	1.41 in	3/4 in	2.56 in
EN25B Hydraulic/Pneumatic Needle Valve	3/8	3/8-18 NPT	Brass	2000	18	0.9200	1.63 in	1 in	3-1/4 in
EN25S Hydraulic/Pneumatic Needle Valve	3/8	3/8-18 NPT	Steel	5000	18	0.9200	1.63 in	1 in	3-1/4 in
EN10S Hydraulic/Pneumatic Needle Valve	1/8	1/8-27 NPT	Steel	5000	4.5	0.2500	1.28 in	0.63 in	1.44 in
EN30B Hydraulic/Pneumatic Needle Valve	1/2	1/2-14 NPT	Brass	2000	28	1.2000	1.97 in	1.13 in	3.56 in
EN30S Hydraulic/Pneumatic Needle Valve	1/2	1/2-14 NPT	Steel	5000	28	1.2000	1.97 in	1.13 in	3.56 in
EN35B Hydraulic/Pneumatic Needle Valve	3/4	3/4-14 NPT	Brass	2000	40	1.8400	2.19 in	1.38 in	4.13 in
EN35S Hydraulic/Pneumatic Needle Valve	3/4	3/4-14 NPT	Steel	5000	40	1.8400	2.19 in	1.38 in	4.13 in

Product Questions & Answers (3)

Question by: Tommy R on Jan 10, 2026, 7:51 PM

does this valve work for pneumatic lines or is it strictly for hydraulic setups?

Answer by: Customer Support on Jan 12, 2026, 7:50 AM

Both, actually. Brass construction makes it the right call for pneumatic systems and lower pressure hydraulic applications. Just keep in mind the pressure ceiling is 2000 PSI, so if you're running a high-pressure hydraulic circuit, you'd want to look at a steel valve instead. For air lines and lighter hydraulic work it'll do the job well.

Question by: Cheryl C on Apr 27, 2025, 6:36 AM

Can this handle adjustments while it's under pressure?

Answer by: Customer Support on Apr 28, 2025, 6:56 PM

Controlled flow adjustments can indeed be made even when this needle valve is under pressure.

Question by: Ray B on Mar 16, 2026, 10:58 AM

trying to dial in a slow drip, how fine can you tweak this thing without it jumping all over the place

Answer by: Customer Support on Mar 18, 2026, 6:20 AM

With the easy read knob you can make very small adjustments, down to a fraction of a turn, and the color coding with the numeric readout helps you come back to the same setting again. It also has a locking set screw so the adjustment stays put once you get it where you want it.

Brass Inline Easy Read Needle Valve, Female 1/8-27 NPT Ports, Up to 4.50 GPM & 2000.00 PSI

Description & Features

Specifications

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Product Questions & Answers (3)