Water Flow Controls | McMaster-Carr

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System of Measurement

Pipe Size

Body Material

For Use With

Hydraulic Fluid (Petroleum Based)

Methyl Ethyl Ketone (MEK)

Sodium Carbonate (Soda Ash)

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Toluene (Methylbenzene)

Fitting Connection

Thread Type

UN/UNF (SAE Straight)

Material

Actuation

Connects To

Maximum Pressure @ Temperature

Shape

Gender

Handle Style

Valve Type

Back-Pressure Regulator

Pressure Drop Assisted

Tube OD

Valve Function

Back-Pressure Regulation

Temperature Regulation

Maximum Temperature

Handle Type

Lockable with Ratchet Opening

Standard with Ratchet Opening

Fitting Type

Ball Material

Flow Coefficient (Cv)

RoHS

Compliant with Exemptions

Not Compliant

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

Yes

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

2B350

2B999

EAR99

DFARS Specialty Metals

Exempt

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How can we improve?

6,237 Products

Fluid Handling

Flow-Adjustment Valves

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

455 products

Orifice Valves

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

989 products

Manual On/Off Valves

Start and stop flow through a line

2,839 products

Check Valves

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

659 products

Air-Actuated On/Off Valves

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

190 products

Drain Valves

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

36 products

Solenoid On/Off Valves

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

429 products

Tap Valves

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

1 product

Sampling Valves

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

2 products

Flow-Adjustment Valve Manifolds

Control flow to multiple points from one source

2 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

Vacuum Breakers

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

32 products

Diverting Valves

Redirect flow between ports

2 products

Valve Union Fittings

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

1 product

Float Valve Bodies

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

2 products

Motor-Actuated On/Off Valves

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

67 products

Pressure-Regulating Valves

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

90 products

Pressure-Relief Valves

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

26 products

Tube Fittings

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

184 products

Hose Fittings

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

23 products

Pipe Bleed Rings

Access inside a pipe line to vent pressure, drain liquid, and take samples

22 products

Mixing Valves

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

7 products

Measuring and Inspecting

Calibration Columns

Calibrate the flow rate of metering pumps

14 products

Facility and Grounds Maintenance

Garden Hose Valves

Start and stop the flow of water through your garden hose

30 products

Water Supply Stop Valves

Shut off water to faucets, toilets, and fountains

1 product