Hydraulic Flow-Adjustment Valves

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Pipe Size

Flow Control Type

One Direction with Unrestricted Reverse

For Use With

Thread Type

UN/UNF (SAE Straight)

Maximum Pressure

Body Material

Maximum Flow Rate

Dash Size

Actuation

Handle Type

Material

Maximum Pressure @ Temperature

Flow Rate

Valve Type

Valve Function

Gender

Flow Coefficient (Cv)

Shape

Overall Length

Export Control Classification Number (ECCN)

2B999

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Thread Size

Height

79 Products

Flow-Adjustment Inline Hydraulic Valves

Turn the dial to gradually adjust the amount of flow. Five colored rings on the valve stem represent different flow rates. Adjust the dial until you see the color of the flow rate you need.

One Direction with Unrestricted Reverse—NPTF Female

Image of Product. Front orientation. Flow-Regulating Valves. Flow-Adjustment Inline Hydraulic Valves .

One-direction-with-unrestricted-reverse valves regulate flow in one direction while allowing oil to flow freely in the opposite direction.

NPTF (Dryseal) threads are compatible with NPT threads.

Brass Body—Brass valves have better corrosion resistance than steel valves.

	Inlet/Outlet Connection						Overall
	Pipe Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		1/8	02	3	0.23	5,000	Buna-N	2"	3/4"	1 3/4"	2"	Needle	1042K12	000000


		1/4	04	5	0.43	5,000	Buna-N	2 5/8"	7/8"	2"	2 5/8"	Needle	1042K14	00000
		3/8	06	8	0.79	5,000	Buna-N	2 3/4"	1"	2 1/2"	2 3/4"	Needle	1042K16	00000
		1/2	08	15	0.98	5,000	Buna-N	3 1/2"	1 1/4"	3"	3 1/2"	Needle	1042K18	000000
		3/4	12	25	2.47	3,000	Buna-N	3 7/8"	1 1/2"	3 5/8"	3 7/8"	Needle	1042K21	000000
		1	16	40	5.25	3,000	Buna-N	5"	1 7/8"	5 1/8"	5"	Needle	1042K23	000000


		Brass Body



				1/8	02	3	0.23	2,000	Buna-N	2"	3/4"	1 3/4"	2"	Needle	1042K11	00000


				1/4	04	5	0.43	2,000	Buna-N	2 5/8"	7/8"	2"	2 5/8"	Needle	1042K13	00000
				3/8	06	8	0.79	2,000	Buna-N	2 3/4"	1"	2 1/2"	2 3/4"	Needle	1042K15	00000
				1/2	08	15	0.98	2,000	Buna-N	3 1/2"	1 1/4"	3"	3 1/2"	Needle	1042K17	000000
				3/4	12	25	2.47	2,000	Buna-N	3 7/8"	1 1/2"	3 5/8"	3 7/8"	Needle	1042K19	000000

One Direction with Unrestricted Reverse—UN/UNF (SAE Straight) Female

One-direction-with-unrestricted-reverse valves regulate flow in one direction while allowing oil to flow freely in the opposite direction.

UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.

	Inlet/Outlet Connection						Overall
	Thread Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		7/16"-20	04	3	0.23	5,000	Buna-N	2 3/4"	7/8"	1 7/8"	2 3/4"	Needle	1042K38	0000000


		9/16"-18	06	5	0.43	5,000	Buna-N	3 1/8"	1"	2 1/4"	3 1/8"	Needle	1042K39	000000
		3/4"-16	08	8	0.79	5,000	Buna-N	3 1/2"	1 1/8"	2 5/8"	3 1/2"	Needle	1042K41	000000
		7/8"-14	10	15	0.98	5,000	Buna-N	4"	1 1/4"	3"	4"	Needle	1042K43	000000
		1 1/16"-12	12	25	2.47	3,000	Buna-N	4 5/8"	1 1/2"	3 5/8"	4 5/8"	Needle	1042K44	000000

Two Direction—NPTF Female

Two-direction valves regulate flow in either direction.

NPTF (Dryseal) threads are compatible with NPT threads.

Brass Body—Brass valves have better corrosion resistance than steel valves.

	Inlet/Outlet Connection						Overall
	Pipe Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		1/8	02	3	0.23	5,000	Buna-N	1 1/2"	3/4"	1 3/4"	1 1/2"	Needle	1535N12	000000


		1/4	04	5	0.44	5,000	Buna-N	2"	7/8"	2"	2"	Needle	1535N14	00000
		3/8	06	8	0.79	5,000	Buna-N	2 1/2"	1"	2 1/2"	2 1/2"	Needle	1535N16	00000
		1/2	08	15	0.98	5,000	Buna-N	2 5/8"	1 1/4"	3"	2 5/8"	Needle	1535N18	000000
		3/4	12	25	2.47	5,000	Buna-N	3 1/4"	1 1/2"	3 5/8"	3 1/4"	Needle	1535N21	000000


		Brass Body



				1/8	02	3	0.23	2,000	Buna-N	1 1/2"	3/4"	1 3/4"	1 1/2"	Needle	1535N11	00000


				1/4	04	5	0.44	2,000	Buna-N	2"	7/8"	2"	2"	Needle	1535N13	00000
				3/8	06	8	0.79	2,000	Buna-N	2 1/2"	1"	2 1/2"	2 1/2"	Needle	1535N15	00000
				1/2	08	15	0.98	2,000	Buna-N	2 5/8"	1 1/4"	3"	2 5/8"	Needle	1535N17	000000
				3/4	12	25	2.47	2,000	Buna-N	3 1/4"	1 1/2"	3 5/8"	3 1/4"	Needle	1535N19	000000

Adjustable Inline Hydraulic Flow-Regulating Valves

Set your flow rate and then adjust it as necessary; these valves maintain flow rate despite pressure changes in the system. Five colored rings on the valve stem represent different flow rates. Adjust the dial until you see the color of the flow rate you need.

NPTF (Dryseal) threads are compatible with NPT threads.

One Direction—NPTF Female

Image of Product. Front orientation. Flow-Regulating Valves. Adjustable Inline Hydraulic Flow-Regulating Valves .

One-direction valves regulate flow in one direction. They are not recommended for systems that may have reverse flow.

	Inlet/Outlet Connection						Overall
	Pipe Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		1/4	04	3	Not Rated	3,000	Buna-N	3 5/8"	1 3/8"	2 3/4"	3 5/8"	Needle	1609N13	0000000


		3/8	06	6	Not Rated	3,000	Buna-N	4 1/8"	1 1/2"	3 1/8"	4 1/8"	Needle	1609N14	000000
		1/2	08	15	Not Rated	3,000	Buna-N	5"	1 3/4"	4"	5"	Needle	1609N15	000000
		3/4	12	25	Not Rated	3,000	Buna-N	5 7/8"	2 1/4"	5 1/8"	5 7/8"	Needle	1609N11	000000

One Direction with Unrestricted Reverse—NPTF Female

One-direction-with-unrestricted-reverse valves regulate flow in one direction while allowing fluid to flow freely in the opposite direction.

	Inlet/Outlet Connection						Overall
	Pipe Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		1/4	04	3	Not Rated	3,000	Buna-N	3 5/8"	1 3/8"	2 1/2"	3 5/8"	Needle	1381N13	0000000


		3/8	06	6	Not Rated	3,000	Buna-N	4 1/8"	1 1/2"	2 7/8"	4 1/8"	Needle	1381N14	000000
		1/2	08	15	Not Rated	3,000	Buna-N	5"	1 3/4"	3 3/4"	5"	Needle	1381N15	000000
		3/4	12	25	Not Rated	3,000	Buna-N	5 7/8"	2 1/4"	4 5/8"	5 7/8"	Needle	1381N11	000000
		1	16	50	Not Rated	3,000	Buna-N	7"	2 3/4"	6 1/4"	7"	Needle	1381N12	000000

Precision Flow-Adjustment Inline Hydraulic Valves

A tapered needle gives you more precise control than standard flow-adjustment inline hydraulic valves. Five colored rings on the valve stem represent different flow rates. Adjust the dial until you see the color of the flow rate you need.

Two Direction—NPTF Female

Image of Product. Front orientation. Flow-Regulating Valves. Precision Flow-Adjustment Inline Hydraulic Valves .

NPTF (Dryseal) threads are compatible with NPT threads.

	Inlet/Outlet Connection						Overall
	Pipe Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		1/8	02	3	0.24	5,000	Buna-N	1 1/2"	1 3/4"	3"	1 1/2"	Needle	1042K25	0000000


		1/4	04	5	0.49	5,000	Buna-N	2"	2"	3 7/8"	2"	Needle	1042K27	00000
		3/8	06	8	1.29	5,000	Buna-N	2 1/2"	2 1/2"	4 3/8"	2 1/2"	Needle	1042K31	000000
		1/2	08	15	1.93	5,000	Buna-N	2 5/8"	3 1/4"	5 3/4"	2 5/8"	Needle	1042K34	000000
		3/4	12	25	3.21	5,000	Buna-N	3 1/4"	3 7/8"	6 3/8"	3 1/4"	Needle	1042K36	000000

Two Direction—UN/UNF (SAE Straight) Female

UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.

	Inlet/Outlet Connection						Overall
	Thread Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Lg.	Wd.	Ht.	Port-to-Port Lg.	Valve Type		Each
Steel Body



		7/16"-20	04	3	0.24	5,000	Buna-N	2"	1 3/4"	3 1/4"	2"	Needle	1042K28	0000000


		9/16"-18	06	5	0.49	5,000	Buna-N	2 3/8"	2"	4"	2 3/8"	Needle	1042K32	000000
		3/4"-16	08	8	1.29	5,000	Buna-N	3"	2 1/2"	4 7/8"	3"	Needle	1042K35	000000
		1 1/16"-12	12	25	3.21	5,000	Buna-N	4"	3 7/8"	6 3/8"	4"	Needle	1042K37	000000

High-Pressure Threaded Precision Flow-Adjustment Valves

Often used in hydraulic and compressed air systems, these valves can withstand at least 6,000 psi. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Steel Body—Metal-to-Metal Seat


Style D	Style Q

Metal-to-metal seats resist temperature fluctuations.

Flow Coefficient (Cv)—Flow coefficient (Cv) is the amount of water (in gallons per minute) at 60° F that will flow through a fully open valve with a difference of 1 psi between the inlet and the outlet.

Packing Material—Valves with packing have a nut that can be tightened to compress the packing if it leaks.

	Pipe Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	Packing Material	End-to-End Lg.	For Use With	Valve Type		Each
NPT Female × NPT Female



	D	1/4	0.6	10,000 psi @ 100° F	-50 to 1,000	Graphite	2 1/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K47	000000


	D	3/8	0.87	10,000 psi @ 100° F	-50 to 1,000	Graphite	2 1/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K48	00000
	D	1/2	0.77	10,000 psi @ 100° F	-50 to 1,000	Graphite	2 3/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K49	000000
	Q	3/4	2.67	10,000 psi @ 100° F	-50 to 1,000	Graphite	3 3/16"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K5	000000
	Q	1	2.61	10,000 psi @ 100° F	-50 to 1,000	Graphite	3 5/8"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K51	000000

316 Stainless Steel Body—Metal-to-Metal Seat


Style D	Style G	Style K	Style Q	Style H	Style J

316 stainless steel valves are more corrosion resistant than brass and steel valves.

Metal-to-metal seats resist temperature fluctuations.

Packing Material—Valves with packing have a nut that can be tightened to compress the packing if it leaks.

	Pipe Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	Seal Material	Packing Material	End-to-End Lg.	For Use With	Valve Type		Each
NPT Female × NPT Female



	D	1/4	0.6	10,000 psi @ 100° F	-50 to 1,000	—	Graphite	2 1/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K32	0000000


	D	3/8	0.87	10,000 psi @ 100° F	-50 to 1,000	—	Graphite	2 1/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K33	000000
	D	1/2	0.77	10,000 psi @ 100° F	-50 to 1,000	—	Graphite	2 3/4"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K34	000000
	G	1/8	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K95	00000
	G	1/4	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K96	00000
	K	1/4	0.63	15,000 psi @ 70° F	-100 to 400	—	PTFE	2"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4617K15	000000
	K	3/8	0.75	15,000 psi @ 70° F	-100 to 400	—	PTFE	2 1/2"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4617K17	000000
	K	1/2	1.3	15,000 psi @ 70° F	-100 to 400	—	PTFE	3"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4617K19	000000
	Q	3/4	2.67	10,000 psi @ 100° F	-50 to 1,000	—	Graphite	3 3/16"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K35	000000
	Q	1	2.61	10,000 psi @ 100° F	-50 to 1,000	—	Graphite	3 5/8"	Water, Oil, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4644K36	000000


	NPT Male × NPT Female



			H	1/8	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K93	00000


			H	1/4	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K94	00000


			NPT Male × NPT Male



					J	1/8	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K91	00000


					J	1/4	0.42	10,000 psi @ 200° F	-10 to 200	Fluoroelastomer/PTFE Plastic	—	1 13/16"	Water, Oil	Needle	7833K92	00000

316 Stainless Steel Body—Bubble-Tight Soft Seat


Style L	Style M

316 stainless steel valves are more corrosion resistant than brass and steel valves.

Bubble-tight soft seats provide a tighter seal than metal-to-metal seats when the valve is completely closed.

	Pipe Size	Flow Coefficient (Cv)	Max. Pressure @ Temp.	Temp. Range, ° F	Seal Material	End-to-End Lg.	For Use With	Valve Type		Each
NPT Female × NPT Female



	L	1/4	0.76	6,000 psi @ 200° F	-10 to 200	Fluoroelastomer	2 1/2"	Water, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4559K42	0000000


	L	1/2	0.76	6,000 psi @ 200° F	-10 to 200	Fluoroelastomer	2 1/2"	Water, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4559K44	000000


	NPT Male × NPT Female



			M	1/4	0.76	6,000 psi @ 200° F	-10 to 200	Fluoroelastomer	3 1/2"	Water, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4559K46	000000


			M	1/2	0.76	6,000 psi @ 200° F	-10 to 200	Fluoroelastomer	3 1/2"	Water, Air, Argon, Helium, Krypton, Neon, Xenon	Needle	4559K48	000000

Inline Hydraulic Flow-Regulating Valves

Maintain a fixed flow rate even if pressure changes in the system. These valves regulate flow in one direction while allowing fluid to flow freely in the opposite direction.

One Direction with Unrestricted Reverse—NPTF Female

NPTF (Dryseal) threads are compatible with NPT threads.

	Inlet/Outlet Connection
	Pipe Size	Dash Size	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Port-to-Port Lg.	Valve Type	Hex Wd.	Choose a Flow Rate, gpm		Each
Steel Body



		1/4	04	Not Rated	3,500	Buna-N	2 1/2"	Piston	15/16"	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4	2301N91	000000


		3/8	06	Not Rated	3,500	Buna-N	2 1/2"	Piston	15/16"	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5	2301N92	00000
		1/2	08	Not Rated	3,500	Buna-N	2 7/8"	Piston	1 1/16"	1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9, 10	2301N93	00000

One Direction with Unrestricted Reverse—UN/UNF (SAE Straight) Female

UN/UNF (SAE Straight) thread connections have straight threads and are also known as O-ring Boss fittings.

	Inlet/Outlet Connection
	Thread Size	Dash Size	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Port-to-Port Lg.	Valve Type	Hex Wd.	Choose a Flow Rate, gpm		Each
Steel Body



		7/16"-20	04	Not Rated	3,500	Buna-N	2 1/4"	Piston	3/4"	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4	2301N94	000000


		9/16"-18	06	Not Rated	3,500	Buna-N	2 1/2"	Piston	15/16"	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5	2301N95	00000
		3/4"-16	08	Not Rated	3,500	Buna-N	2 7/8"	Piston	1 1/16"	0.5, 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 6, 7, 8, 9, 10	2301N96	000000

Screw-In Hydraulic Flow-Adjustment Valves

Turn the knob to gradually adjust the amount of flow. These compact valves screw into your mounting block. They are also known as needle valves and cartridge valves.

				Body
	Deltrol Equivalent Model No.	Hydraforce Equivalent Model No.	Parker Equivalent Model No.	Thread Size	Dash Size	Max. Flow Rate, gpm	Flow Coefficient (Cv)	Max. Pressure, psi	Seal Material	Overall Ht.	Valve Type		Each
Two Direction—UN/UNF (SAE Straight)







				Black Anodized Aluminum Body

				DNV-080-N-K	NV08-20B-0-N	NVH081-K-N	3/4"-16	08	12	0.47	3,000	Buna-N	2 3/8"	Needle	1599N11	000000


				DNV-100-N-K	NV10-20B-0-N	NVH101-K-N	7/8"-14	10	12	1.25	3,000	Buna-N	2 5/8"	Needle	1599N12	00000

Flow-Adjustment Valves for Hydraulic Jacks

Control the flow of oil to adjust ram speed, or shut it off to temporarily hold a load.

Material	Thread Type	Gender	Max. Pressure, psi	Valve Type		Each



1/4	Steel	NPTF	Female	10,000	Needle	2983T18	0000000


3/8	Steel	NPTF	Female	10,000	Needle	2983T41	000000

Float Valve Bodies for Drinking Water

Safe for use in drinking water systems, these float valve bodies meet NSF/ANSI 61 standards. Combine them with rods and floats to create custom float valves. They’re made of PVC, so they’re a lightweight alternative to metal valve bodies. With a nonrotating plunger, they maintain a tight seal even in turbulent water, such as in mixing tanks and tanks with boiling water.

90° Elbow, NPT Male Inlet × NPT Male Outlet

90° Elbow with

Flow-Adjustment Lever

Flow-Adjustment Lever—Float valve bodies with a flow-adjustment lever have two flow setpoints, so you can adapt the flow rate to match system requirements.

	Max. Pressure, psi	For Rod Thread Size	Material	Connector Material	Plunger Material		Each
Santoprene Seal







	Smooth Nonrotating Plunger with Flow-Adjustment Lever

	1	1	69 gpm @ 60 psi	100	1/4"-20	PVC	18-8 Stainless Steel	PVC	6381N17	000000


	1 1/4	1 1/4	145 gpm @ 60 psi	100	5/16"-18	PVC	18-8 Stainless Steel	PVC	6381N18	00000