On/Off Valves | McMaster-Carr

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How can we improve?

7,050 Products

Fluid Handling

Manual On-Off Valves

Start and stop flow through a line

3,272 products

Solenoid On-Off Valves

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

566 products

Flow-Adjustment Valves

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

1 product

Directional Control Valves

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

420 products

Air-Actuated On-Off Valves

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

194 products

Diverting Valves

Redirect flow between ports

106 products

Valve Bodies

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

16 products

Motor-Actuated On-Off Valves

An electric motor handles higher flow rates and pressures than solenoid valves

85 products

Drain Valves

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

41 products

Valve Actuators

Automatically start and stop flow to your valve

50 products

Solenoid Coils

Replace the coil that actuates your flow-control valve

54 products

Liquid-Dispensing Metering Valves

Program to dispense a specific amount of liquid every time and shut off when set amount is reached

3 products

Valve Repair Kits

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

160 products

Sampling Valves

Drain a small amount of liquid or gas for inspection without disrupting flow

10 products

Tap Valves

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

1 product

Valve Union Fittings

Mating parts join valves to a line for quick connection and removal

35 products

Pilot Valves

Control air supply to the actuator in other valves

13 products

Float Valve Bodies

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

77 products

Hose and Hose Fittings

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

864 products

Pipe Elbows

Change the direction of flow when joining lengths of pipe

14 products

Air Chucks

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

3 products

Power Transmission

Hydraulic On-Off Valves

Control the flow in high-pressure hydraulic systems

43 products

Air Flow Control Valves

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

9 products

Safety Lockout Valves

Prevent accidental start-up when servicing equipment

57 products

Compressed Air Dryers

Remove lingering moisture from air lines

3 products

Air Cylinders

Push and pull loads to do everything from stamping materials to sorting parts on conveyors

12 products

Containers, Storage, and Furniture

Drum Faucets

Control the flow of liquid from drums, tanks, carboys, and other containers

32 products

Facility and Grounds Maintenance

Garden Hose Valves

Start and stop the flow of water through your garden hose

29 products

Garden Hose Faucets

Connect garden hose to lines coming from a building or the ground

32 products

Water Supply Stop Valves

Shut off water to faucets, toilets, and fountains

23 products

Flush Valve Replacement Parts

Replace virtually any part in the most common flush valve brands

262 products

Toilet Flush Valves

Release water from a plumbing line or toilet tank into the bowl

18 products

Sink Faucets

Manual and touch-free faucets for janitorial, restroom, and food service sinks

138 products

Pressurized-Tank Toilet Kits

Replace upper water supply, flush valve cartridge, or the whole system in pressurized-tank toilets

12 products

Urinal Flush Valves

Release water from a plumbing line into the urinal bowl

19 products

Flush Valve Converters

Make manual flush toilets and urinals touch-free

21 products

Toilet Tank Replacement Parts

Replace parts such as flappers, fill valves, and floats in your toilet tank

23 products

Safety Equipment

Shower Station Valves

Replace valves on your shower station

3 products

Eye Wash Station Replacement Parts

Replace eye wash station parts such as spray heads, valves, handles, and bowls

12 products

Fire Post Indicators

Open and close water supply valves for fire systems buried underground or in a wall

2 products

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valves

Tap into refrigerant lines to drain and fill your system

18 products