Automatic Water Valves | McMaster-Carr

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Pipe Size

For Use With

Ethylene Glycol

Hydraulic Fluid

Inlet Pipe Size

Body Material

Stainless Steel

Material

Stainless Steel

Actuation

Valve Type

Back-Pressure Regulator

Pressure Regulator

Temperature Regulator

Thermostatic Mixing

Zero Pressure Drop

Maximum Temperature

Less than 100° F

100° F to 149° F

150° F to 199° F

200° F to 249° F

250° F or greater

Outlet Pipe Size

Valve Function

Back-Pressure Regulation

Flow Adjustment

Pressure Regulation

Pressure Relief

Temperature Regulation

Fitting Connection

Thread Type

Flow Coefficient (Cv)

Outlet Pressure

0 psi to 10 psi

0 psi to 20 psi

0 psi to 25 psi

0 psi to 50 psi

0 psi to 60 psi

0 psi to 80 psi

0 psi to 125 psi

0 psi to 140 psi

0 psi to 220 psi

0 psi to 700 psi

0 psi to 1,200 psi

0 psi to 1,500 psi

0 psi to 1,800 psi

0 psi to 2,500 psi

0.5 psi to 3.5 psi

0.5 psi to 10 psi

Maximum Pressure

Less than 500 psi

500 psi to 999 psi

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi or greater

Inlet Thread Type

Minimum Temperature

0° F to 24° F

25° F to 49° F

50° F to 99° F

100° F or greater

Gender

Inlet Gender

Shape

RoHS

Compliant with Exemptions

REACH

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

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Maximum Inlet Pressure

Less than 100 psi

100 psi to 249 psi

250 psi to 499 psi

500 psi to 999 psi

1,000 psi or greater

How can we improve?

565 Products

Fluid Handling

Flow-Adjustment Valves

Flow-Adjustment Valves

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

Float Valves

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

Float Valve Bodies

Float Valve Bodies

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

Air Vent Valves

Air Vent Valves

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

Mixing Valves

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

Pressure-Regulating Valves

Pressure-Regulating Valves

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

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)