Valves for Air | McMaster-Carr

Filter by

System of Measurement

Pipe Size

Body Material

For Use With

Acetic Acid (White Vinegar)

Acetic Acid (White Vinegar) (20% Concentration)

Argon/Carbon Dioxide Blend

Citric Acid (25% Concentration)

Citric Acid (50% Concentration)

Citric Acid (100% Concentration)

Hydraulic Fluid (Petroleum Based)

Hydraulic Oil

Hydrochloric Acid

Hydrochloric Acid (37% Concentration)

Hydrogen

Hydrogen Peroxide

Hydrogen Peroxide (30% Concentration)

Liquid Carbon Dioxide

Methanol (Methyl Alcohol)

Methyl Ethyl Ketone (MEK)

Nitric Acid (20% Concentration)

Nitric Acid (25% Concentration)

Nitric Acid (50% Concentration)

Nitric Acid (100% Concentration)

Phosphoric Acid (70% Concentration)

Sodium Bicarbonate (Baking Soda)

Sodium Carbonate (Soda Ash)

Sodium Chloride

Sodium Hydroxide (Caustic Soda)

Sodium Hydroxide (Caustic Soda) (20% Concentration)

Sodium Hydroxide (Caustic Soda) (25% Concentration)

Sodium Hydroxide (Caustic Soda) (50% Concentration)

Sodium Hydroxide (Caustic Soda) (75% Concentration)

Sodium Hydroxide (Caustic Soda) (100% Concentration)

Sodium Hypochlorite (Bleach)

Sulfuric Acid (75% Concentration)

Synthetic Oil

Toluene (Methylbenzene)

Fitting Connection

Thread Type

UN/UNF (SAE Straight)

Actuation

Handle Style

Shape

Connects To

Material

Compressed Non-Asbestos Synthetic Fiber

Handle Type

Lockable with Ratchet Opening

Standard with Ratchet Opening

Maximum Pressure @ Temperature

Gender

Valve Type

Back-Pressure Regulator

Pressure Drop Assisted

Tube OD

Valve Function

Back-Pressure Regulation

Ball Material

Port Type

Maximum Temperature

Pressure Class

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B350

2B999

EAR99

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

Yes

DFARS Specialty Metals

Exempt

Forward

How can we improve?

7,026 Products

Fluid Handling

On-Off Valves

Start and stop flow through a line

2,331 products

Flow-Adjustment Valves

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

420 products

Flow-Adjustment Valve Manifolds

Control flow to multiple points from one source

2 products

Diverting Valves

Redirect flow between ports

194 products

Check Valves

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

517 products

Valve Bodies

Attach to actuators to automatically or manually control flow in your line

16 products

Drain Valves

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

13 products

Tap Valves

Pierce copper tubing for a secondary line to humidifiers and ice makers; also known as saddle valves

1 product

Orifice Valves

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

965 products

Vacuum Breakers

When pressure drops, vents open to prevent suction from drawing liquid back upstream

16 products

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

5 products

Pressure-Relief Valves

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

96 products

Pressure-Regulating Valves

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

88 products

Vacuum-Relief Valves

Open at a set vacuum and close when the vacuum level drops to protect equipment

3 products

Vacuum-Regulating Valves

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

14 products

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

475 products

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

9 products

Manifolds

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

619 products

Hose and Hose Fittings

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

451 products

Junction Blocks

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

88 products

Mufflers

Reduce noise and filter exhaust fumes

24 products

Lubricating

Coolant Hose and Fittings

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

260 products

Facility and Grounds Maintenance

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

2 products

Building and Machinery Hardware

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

26 products