1/8 Valves | McMaster-Carr

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System of Measurement

Pipe Size

Actuation

Thread Type

UN/UNF (SAE Straight)

For Use With

Body Material

Fitting Connection

Inlet Pipe Size

Air Directional Control Valve Flow Pattern

5/3 (Pressure Center)

Material

Connects To

Gender

Shape

Adjustable-Angle Elbow

Maximum Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi to 3,999 psi

Valve Function

Back-Pressure Regulation

Valve Type

Back-Pressure Regulator

Pressure Drop Assisted

Outlet Pipe Size

Inlet Thread Type

Return Actuation

Maximum Pressure @ Temperature

Actuator Style

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

Export Control Classification Number (ECCN)

2B350

2B999

EAR99

DFARS Specialty Metals

Exempt

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1,983 Products

Fluid Handling

Manual On-Off Valves

Start and stop flow through a line

228 products

Directional Control Valves

Manage the flow of fluids to move equipment in air- and hydraulic-powered systems

130 products

Air Valves

Fill tanks, tires, and other pressurized equipment

14 products

Air-Actuated On-Off Valves

Operate on compressed air to start and stop flow faster than motor-driven valves

72 products

Flow-Adjustment Valves

Gradually open and close to control the volume of air and liquids through a line

55 products

Diverting Valves

Redirect flow between ports

31 products

Drain Valves

Vent air or discharge liquids to remove excess fluid from your system

11 products

Valve Actuators

Automatically start and stop flow to your valve

7 products

Check Valves

Permit flow in only one direction by closing when flow stops or reverses

69 products

Air-Exhaust Valves

Vent or divert exhaust to speed up the operation of air cylinders, actuators, and other equipment

15 products

Solenoid On-Off Valves

A solenoid withstands rapid cycling for applications with frequent opening and closing

54 products

Air Vent Valves

Eliminate air pockets from fluid lines to maintain consistent flow and prevent surges

9 products

Valve Repair Kits

Maintain valves with replacement parts such as seals, plungers, and springs

5 products

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

5 products

Float Valves

Open or close a pipe connection when liquids in a container reach a set level; also known as ballcocks

5 products

Orifice Valves

Restrict the flow of liquids and gases to precisely control rate and pressure

223 products

Float Valve Bodies

Pair with floats and rods to create float valves that meet your needs

6 products

Air Pulse Valves

Convert continuous flow into bursts that reduce air consumption in dryers and dust collectors

2 products

Spray Nozzle Bars

Attach nozzles to build your own spray system

7 products

Float Rods

Connect valve bodies and floats to build or repair a float valve

1 product

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

2 products

Rotary Joints

Transfer air, water, oil, and steam from supply lines to continuously revolving drums and rollers

1 product

Manifolds

Distribute air or fluid to multiple places from a single source; also called headers

164 products

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

62 products

Junction Blocks

Organize and separate multiple lines in a pipe system; air and fluid flow through the threaded holes

21 products

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

49 products

Pressure-Relief Valves

Protect equipment by opening at a set pressure and closing when the pressure drops; for repeated use

16 products

Pressure-Regulating Valves

Reduce inlet pressure to a lower outlet pressure to protect sensitive equipment

15 products

Vacuum-Regulating Valves

Control the amount of air that a vacuum pump draws from your system to maintain vacuum levels

6 products

Mufflers

Reduce noise and filter exhaust fumes

6 products

Power Transmission

Air Flow Control Valves

Control the speed of air-powered equipment by adjusting the volume of airflow entering or exiting

71 products

Hydraulic On-Off Valves

Control the flow in high-pressure hydraulic systems

1 product

Compressed Air Regulators

Ensure continuous, safe operation of air-powered equipment by controlling air pressure

143 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

30 products

Compressed Air Filter/Regulators

Simultaneously clean air that's running through a system and control its pressure

83 products

Safety Lockout Valves

Prevent accidental start-up when servicing equipment

3 products

Compressed Air Filters

Purge particles, oil, and other contaminants from air lines to prevent damaging equipment

26 products

Compressed Air Filter/Regulator/Lubricators

Deliver clean, lubricated air at the desired pressure to a component in your line

9 products

Compressed Air Filter/Regulator/Lubricator Manifolds

Distribute compressed air to multiple locations from a single source

12 products

Air Flow Check Valves

Open to allow air flow in one direction and close when flow stops or reverses

1 product

Hydraulic Check Valves

Open to allow hydraulic fluid flow in one direction and close when flow stops or reverses

5 products

Lubricating

Coolant Hose and Fittings

Build a custom system to deliver coolant, cutting oil, water, or air in any direction

23 products

Oil-Dispensing Pump Metering Valves

Add to manual and electric pumps to dispense the right amount of oil to different lubrication points

5 products

Oil-Dispensing Pumps

Deliver controlled amounts of oil at specific intervals to keep equipment lubricated

16 products

Grease-Dispensing Pumps

Automate the flow of grease with air or battery power instead of applying it by hand

5 products

Oil Brushes

Connect to oil dispensers to brush lubricant onto chain, gears, and conveyors

24 products

Oil Dispensers

Keep machinery lubricated by applying oil

14 products

Building and Machinery Hardware

T-Slotted Framing Manifolds

Distribute air and liquid from a single supply to multiple areas in a T-slotted framing structure

7 products