McMaster-Carr

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	Pipe Size Pipe Size

1/8

1/4

	Thread Type Thread Type

	For Use With For Use With

	Body Material Body Material

	Connection Style Connection Style

	Threaded
	Flanged
	Socket Connect
	Clamp On
	Yor-Lok

	Valve Type Valve Type

	Maximum Pressure Maximum Pressure

	Valve Function Valve Function

	Actuation Actuation

	Shape Shape

	Straight
	Tee
	90° Elbow

	Handle Style Handle Style


Lever	Wheel

Knob	T-Handle

	Ball Material Ball Material

Stainless Steel

Steel

	Connection Type Connection Type


Pipe	Tube

	Gender Gender

Female

Male

	Handle Type Handle Type

	Flow Coefficient (Cv) Flow Coefficient (Cv)

0.03
0.035
0.1
0.11
0.2
0.23
0.24
0.25
0.26
0.28
0.42
0.43
0.44
0.47
0.49
0.51
0.53
0.54
0.56
0.6
0.7
0.75
0.76
0.77
0.78
0.79
0.8
0.83
0.87
0.92
0.93
0.98
1
1.02
1.2
1.24
1.29
1.3
1.31
1.43
1.47
1.5
1.53
1.6
1.68
1.7
1.84
1.9
1.93
2
2.47
2.61
2.67
2.69
2.71
3
3.21
3.3
3.5
3.6
4
4.4
4.5
5
5.08
5.25
5.41
6
6.4
7
7.2
8
8.4
8.96
9
9.5
10
10.7
12
13
14
14.09
14.1
15
17
18
19
20
21
22
22.34
25
30
32
33
37
43
44
46
48
50
52
57
60
80
81
84
85
90
92
94
95
108
111
120
135
137
140
142
144
156
190
211
228
240
248
257
260
300
307
370
386
451
469
480
605
750
1,013
1,150
1,620
2,110
Not Rated

	Maximum Temperature Maximum Temperature

	Minimum Temperature Minimum Temperature

	Voltage Voltage

	Flow Pattern Flow Pattern

	System of Measurement System of Measurement

Inch

Metric

	Overall Height Overall Height

	Overall Length Overall Length

	Seal Material Seal Material

Fluoroelastomer
Rubber/PTFE Plastic

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429 Products

On/Off Valves

High-Pressure
Threaded On/Off Valves

These valves are rated for at least three times the pressure of standard threaded valves. Use with water, oil, air, inert gas, and steam.

Easy-Maintenance
Threaded On/Off Valves

Maintain and repair these valves without unthreading pipe connections. They have a three-piece bolted body that disassembles inline for access to internal components. Use with water, oil, air, inert gas, and steam.

Miniature Threaded On/Off Valves

With 10-32 UNF threads and a body less than 3/4” long, these valves are often used to control flow in miniature pipelines. They’re rated for use with water, oil, air, and inert gas.

Flanged On/Off Valves

Bolt these valves to ANSI flanges. They’re for use with water, oil, air, inert gas, and steam.

Panel-Mount On/Off Valves
with Yor-Lok Fittings

Threads and a hex nut below the handle allow you to install these valves in instrument panels. For extra gripping power and a strong seal, they have Yor-Lok fittings with two sleeves that bite into tubing as you tighten the nut. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings. Use these valves with water, oil, air, inert gas, and steam.

Threaded On/Off Valves for Fuel

Protect personnel and equipment in the presence of diesel fuel, fuel oil, gasoline, and kerosene. Fire-tested to meet American Petroleum Institute (API) 607, Edition 4, these valves are designed to securely isolate fluid and prevent the spread of fire.

Miniature Threaded On/Off
Valves for Chemicals

To withstand aggressive and corrosive solutions in miniature chemical-processing pipelines, these tiny valves have a chemical-resistant fluoroelastomer seal and a corrosion-resistant 303 stainless steel body.

Threaded Isolation On/Off
Valves for Chemicals

Attach gauges or sensors to these valves so you can remove them for maintenance and calibration without depressurizing your line. They are also known as block and bleed valves.

High-Pressure Threaded
Gradual On/Off Valves

Designed for use in refineries and other demanding environments, these durable valves have a forged steel body that can withstand at least twice the pressure of other threaded valves.

High-Pressure Socket-Connect
Gradual On/Off Valves

With a forged steel body and bolted construction, these durable valves can withstand nearly 10 times the pressure of other socket-weld gradual on/off valves.

Flanged Gradual On/Off Valves

High-Flow Flanged
Motor-Driven On/Off Valves

Their ball valve design allows these valves to handle three times the flow of butterfly valves.

Air-Driven On/Off Valves for Fuel

Use these valves to safely transfer fuel and oil.

High-Flow Flanged
Air-Driven On/Off Valves

Their ball-valve design allows these valves to handle three times the flow of butterfly valves.

Flow-Adjustment Valves

High-Pressure Threaded
Flow-Adjustment Valves

Rated for twice the pressure of other threaded flow-adjustment valves, these are often used in refineries and other demanding environments. Use with water, oil, air, and inert gas. They gradually open and close to adjust and regulate flow.

High-Pressure Threaded
Precision Flow-Adjustment Valves

Often used in hydraulic and compressed air systems, these valves can withstand at least 6,000 psi. They’re for use with water, oil, air, and inert gas. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Panel-Mount High-Pressure Threaded
Precision Flow-Adjustment Valves

Designed for high-pressure instrumentation applications, these valves are rated for up to 10,000 psi and have a hex nut and threads below the handle for panel mounting. Use with water, oil, air, and inert gas. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Easy-Set Threaded Precision
Flow-Adjustment Valves

The color-coded threads and numerical markings on these valves ensure consistent and repeatable settings. One full revolution of the handle reveals a new color to indicate the set point. Use with water, oil, air, and inert gas. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Threaded Precision
Flow-Adjustment Valves

Use these valves with water, oil, air, and inert gas. Turn the handle to adjust flow in small increments for metering, sampling, and other applications requiring fine flow control.

Extended-Life Flanged
Flow-Adjustment Valves

For a longer service life than other flanged flow-adjustment valves, these are designed to open and close with minimal wear on internal components. Use with water, air, and inert gas. They bolt to flanges to adjust and regulate flow in flanged pipelines.

Flanged Flow-Adjustment
Valves for Steam

Rated for steam pressures up to 100 psi @ 400° F, these valves have PTFE seats for excellent temperature resistance. They bolt to flanges to adjust and regulate flow in flanged pipelines.

Noncontact Flow-Adjustment Valves

These valves press down on the outside of tubing to adjust flow without contacting the process media.

Flanged Diverting Valves

Bolt these valves to flanges to divert flow between ports in flanged pipelines. They’re for use with water, oil, air, and inert gas.

Check Valves

High-Performance Threaded
Check Valves for Fuel

These heavy duty valves can withstand pressures up to 1,975 psi and temperatures up to 800° F.

Socket-Connect Check
Valves for Oil and Fuel

Insert unthreaded pipe into the socket ends and weld to create a permanent, leak-tight connection.

Check Valves with Yor-Lok Fittings

Two sleeves give the fittings extra gripping power. They bite into tubing as you tighten the nut to form a strong seal. All are compatible with Swagelok®, Let-Lok, and Parker A-Lok fittings.

Inline Hydraulic Valves

On/Off Inline Hydraulic Valves

Start and stop flow with a quarter turn of the handle. Also known as ball valves.

Lockable On/Off Inline
Hydraulic Valves

Lock the handle using a padlock.

Pressure-Regulating
Inline Hydraulic Valves

When input pressure varies, use these valves to maintain a consistent pressure.

Adjustable Flow-Regulating
Inline Hydraulic Valves

Set your flow rate and then adjust it as necessary; these valves maintain flow rate despite pressure changes in the system.

Flow-Regulating Inline
Hydraulic Valves

Maintain a fixed flow rate even if pressure changes in the system.

Directional-Control
Inline Hydraulic Valves

Turn the handle to direct flow between ports.

Precision Flow-Adjustment
Inline Hydraulic Valves

A tapered needle gives you more precise control than standard flow-adjustment inline hydraulic valves.

Flow-Adjustment Inline
Hydraulic Valves

Adjust the flow rate as needed.

Backflow-Prevention
Inline Hydraulic Valves

Also known as check valves, these open to allow flow in one direction and close when flow stops or reverses.

Pressure-Regulating Block-Mount Hydraulic Valves

Pressure-Regulating
Block-Mount Hydraulic Valves

These valves maintain a consistent pressure in a system when input pressure varies.

High-Temperature Pressure-Regulating
Valves for Water, Oil, Air, and Inert Gas

High-Temperature
Pressure-Regulating Valves
for Water, Oil, Air, and Inert Gas

Rated for more than double the temperature of standard pressure-regulating valves, these can withstand temperatures up to 550° F.

Compressed Air Control Valves

Remote-Location Two-Hand
Single-Action Air Directional
Control Valves

The push buttons that operate these valves are separate from the logic unit, allowing you to position them away from machinery. Since both hands are required to simultaneously press the buttons, they protect workers from accidental machinery start-up. They create one action, such as extending a cylinder.

Two-Speed Two-Action
Electrically Operated Air
Directional Control Valves

Often used to extend and then retract a cylinder at different speeds, these valves create two actions and have two exhaust ports, which allows you to control the speed of each action by attaching a flow control valve to each exhaust port. Also known as 5/2 valves, they actuate when voltage is applied to the electrical connection.

Single-Action Foot-Operated
Air Directional Control Valves

These valves create one action, such as extending a cylinder. Use your foot to operate them, leaving your hands free to perform other tasks. Also known as 3-way or 3/2 valves.

Two-Hand Two-Action Air
Directional Control Valves

Since both hands are required to simultaneously press the buttons, these valves protect workers from accidental machinery start-up. They create two actions, such as extending and then retracting a double-acting cylinder.

Single-Action Electrically Operated
Air Directional Control Valves

These valves create one action, such as extending a cylinder. Apply voltage to the electrical connection to actuate. They're also known as 3/2 valves.

Modular Air Directional Control
Valves with Air Manifolds

Mount valves to a single-station base or to a manifold, which allows a single pressure source for multiple valves, then add or remove valves as your needs change.

Two-Hand Single-Action Air
Directional Control Valves

Since both hands are required to simultaneously press the buttons, these valves protect workers from accidental machinery start-up. They create one action, such as extending a cylinder.

Electrically Operated
Air On/Off Valves

Also known as solenoid valves, these valves are operated by an electrical signal to turn airflow on or off.

Terms and Conditions and Privacy Policy

On/Off Valves

High-PressureThreaded On/Off Valves

Easy-MaintenanceThreaded On/Off Valves

Miniature Threaded On/Off Valves

Flanged On/Off Valves

Panel-Mount On/Off Valveswith Yor-Lok Fittings

Threaded On/Off Valves for Fuel

Miniature Threaded On/OffValves for Chemicals

Threaded Isolation On/OffValves for Chemicals

High-Pressure ThreadedGradual On/Off Valves

High-Pressure Socket-ConnectGradual On/Off Valves

Flanged Gradual On/Off Valves

High-Flow FlangedMotor-Driven On/Off Valves

Air-Driven On/Off Valves for Fuel

High-Flow FlangedAir-Driven On/Off Valves

Flow-Adjustment Valves

High-Pressure ThreadedFlow-Adjustment Valves

High-Pressure ThreadedPrecision Flow-Adjustment Valves

Panel-Mount High-Pressure ThreadedPrecision Flow-Adjustment Valves

Easy-Set Threaded PrecisionFlow-Adjustment Valves

Threaded PrecisionFlow-Adjustment Valves

Extended-Life FlangedFlow-Adjustment Valves

Flanged Flow-AdjustmentValves for Steam

Noncontact Flow-Adjustment Valves

Flanged Diverting Valves

Flanged Diverting Valves

Check Valves

High-Performance ThreadedCheck Valves for Fuel

Socket-Connect CheckValves for Oil and Fuel

Check Valves with Yor-Lok Fittings

Inline Hydraulic Valves

On/Off Inline Hydraulic Valves

Lockable On/Off InlineHydraulic Valves

Pressure-RegulatingInline Hydraulic Valves

Adjustable Flow-RegulatingInline Hydraulic Valves

Flow-Regulating InlineHydraulic Valves

Directional-ControlInline Hydraulic Valves

Precision Flow-AdjustmentInline Hydraulic Valves

Flow-Adjustment InlineHydraulic Valves

Backflow-PreventionInline Hydraulic Valves

Pressure-Regulating Block-Mount Hydraulic Valves

Pressure-RegulatingBlock-Mount Hydraulic Valves

High-Temperature Pressure-RegulatingValves for Water, Oil, Air, and Inert Gas

High-TemperaturePressure-Regulating Valves for Water, Oil, Air, and Inert Gas

Compressed Air Control Valves

Remote-Location Two-HandSingle-Action Air Directional Control Valves

Two-Speed Two-ActionElectrically Operated Air Directional Control Valves

Single-Action Foot-OperatedAir Directional Control Valves

Two-Hand Two-Action AirDirectional Control Valves

Single-Action Electrically OperatedAir Directional Control Valves

Modular Air Directional ControlValves with Air Manifolds

Two-Hand Single-Action AirDirectional Control Valves

Electrically OperatedAir On/Off Valves

High-Pressure
Threaded On/Off Valves

Easy-Maintenance
Threaded On/Off Valves

Panel-Mount On/Off Valves
with Yor-Lok Fittings

Miniature Threaded On/Off
Valves for Chemicals

Threaded Isolation On/Off
Valves for Chemicals

High-Pressure Threaded
Gradual On/Off Valves

High-Pressure Socket-Connect
Gradual On/Off Valves

High-Flow Flanged
Motor-Driven On/Off Valves

High-Flow Flanged
Air-Driven On/Off Valves

High-Pressure Threaded
Flow-Adjustment Valves

High-Pressure Threaded
Precision Flow-Adjustment Valves

Panel-Mount High-Pressure Threaded
Precision Flow-Adjustment Valves

Easy-Set Threaded Precision
Flow-Adjustment Valves

Threaded Precision
Flow-Adjustment Valves

Extended-Life Flanged
Flow-Adjustment Valves

Flanged Flow-Adjustment
Valves for Steam

High-Performance Threaded
Check Valves for Fuel

Socket-Connect Check
Valves for Oil and Fuel

Lockable On/Off Inline
Hydraulic Valves

Pressure-Regulating
Inline Hydraulic Valves

Adjustable Flow-Regulating
Inline Hydraulic Valves

Flow-Regulating Inline
Hydraulic Valves

Directional-Control
Inline Hydraulic Valves

Precision Flow-Adjustment
Inline Hydraulic Valves

Flow-Adjustment Inline
Hydraulic Valves

Backflow-Prevention
Inline Hydraulic Valves

Pressure-Regulating
Block-Mount Hydraulic Valves

High-Temperature Pressure-Regulating
Valves for Water, Oil, Air, and Inert Gas

High-Temperature
Pressure-Regulating Valves
for Water, Oil, Air, and Inert Gas

Remote-Location Two-Hand
Single-Action Air Directional
Control Valves

Two-Speed Two-Action
Electrically Operated Air
Directional Control Valves

Single-Action Foot-Operated
Air Directional Control Valves

Two-Hand Two-Action Air
Directional Control Valves

Single-Action Electrically Operated
Air Directional Control Valves

Modular Air Directional Control
Valves with Air Manifolds

Two-Hand Single-Action Air
Directional Control Valves

Electrically Operated
Air On/Off Valves