Thumb Valves | McMaster-Carr

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Coolant Supply Connector On/Off Valve

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3,350 Products

Most Likely Products

On-Off Valves

Start and stop flow through a line

1,056 products

Flow-Adjustment Valves

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

301 products

Air Flow Control Valves

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

266 products

Drum Faucets

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

4 products

All Results

Fluid Handling

On-Off Valves

Start and stop flow through a line

1,056 products

Flow-Adjustment Valves

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

301 products

Drain Valves

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

26 products

Directional Control Valves

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

57 products

Diverting Valves

Redirect flow between ports

124 products

Air-Exhaust Valves

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

20 products

Flow-Regulating Valves

Maintain the set flow rate of fluid through your system

44 products

Sampling Valves

Drain a small amount of fluid for inspection without disrupting flow

10 products

Hose

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

1 product

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

2 products

Compressed Gas Valves

Check and adjust the pressure of compressed gas in tanks; also known as Schrader valves

2 products

Pressure-Relief Valves

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

6 products

Vacuum-Regulating Valves

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

6 products

Pressure-Regulating Valves

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

79 products

Mufflers

Reduce noise and filter exhaust fumes

4 products

Mixing Valves

Blend hot and cold water, steam, or oil to maintain a set outlet temperature and prevent scalding

8 products

Power Transmission

Air Flow Control Valves

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

266 products

Compressed Air Filter/Regulator/Lubricators

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

192 products

Compressed Air Filter/Regulator Manifolds

Purify air from a single supply and distribute it to multiple locations

4 products

Compressed Air Filter/Regulators

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

163 products

Compressed Air Regulator Manifolds

Use a single air supply to meet multiple pressure requirements

20 products

Compressed Air Regulators

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

351 products

Containers, Storage, and Furniture

Drum Faucets

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

4 products

Lubricating

Coolant Dispenser Hose On/Off Valves

Open and close to start and stop the flow of coolant

13 products

Oil Dispensers

Keep machinery lubricated by applying oil

129 products

Fabricating and Machining

Blowguns

Direct a stream of air to clean equipment, parts, and spaces

47 products

Facility and Grounds Maintenance

Urinal Flush Valves

Release water from a plumbing line into the urinal bowl

8 products

Garden Hose Faucets

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

12 products

Toilet Flush Valves

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

5 products

Drinking Fountain Nozzles

Dispense water from fountains; also known as bubblers

5 products

Heating, Ventilation, and Air Conditioning

Air Conditioner Service Valves

Tap into refrigerant lines to drain and fill your system

15 products