Regulators for Water | McMaster-Carr

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For Use With

Argon/Carbon Dioxide Blend

Citric Acid (25% Concentration)

Citric Acid (100% Concentration)

Coolant

Cyclobutane

Cyclopropane

Dichlorotetrafluoroethane

Hydrochloric Acid (37% Concentration)

Liquid Carbon Dioxide

Methanol (Methyl Alcohol)

Methyl Bromide

Methyl Chloride

Methyl Ethyl Ketone (MEK)

Silicon Tetrafluoride

Soap Solutions

Sodium Hydroxide (Caustic Soda)

Sodium Hypochlorite (Bleach)

Toluene (Methylbenzene)

Trifluoroethane

Tungsten Hexafluoride

System of Measurement

Pipe Size

Body Material

Outlet Pressure

Inlet Pipe Size

Maximum Inlet Pressure

Less than 500 psi

500 psi to 999 psi

1,000 psi to 1,999 psi

2,000 psi to 3,999 psi

Thread Type

UN/UNF (SAE Straight)

Outlet Pipe Size

Material

Compressed Non-Asbestos Synthetic Fiber

Valve Function

Back-Pressure Regulation

Temperature Regulation

Shape

Fitting Connection

Actuation

Inlet Thread Type

Valve Type

Back-Pressure Regulator

Pressure Drop Assisted

Maximum Temperature

Maximum Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi to 3,999 psi

Seal Material

Connects To

Outlet Thread Type

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

6,238 Products

Pressure-Regulating Valves

Long-Life Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

The bronze body lasts longer than standard valves

8 products

Miniature Ultra-High-Pressure-Regulating Valves for Water, Air, and Inert Gas

Regulate extremely high pressure in tight spots

2 products

Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

Reduce a high, variable inlet pressure to a lower, stable outlet pressure

10 products

Low-Pressure-Regulating Valves for Water

Respond to the slightest pressure change to maintain stable outlet pressure

1 product

Corrosion-Resistant Panel-Mount Ultra-High-Pressure-Regulating Valves for Water, Air, and Inert Gas

Resist corrosion in wet conditions and withstand pressure up to 6,000 psi

1 product

Vibration-Damping Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

A cast iron body absorbs vibration to reduce wear and noise

13 products

Quick-Set Pressure-Regulating Valves for Water

Turn the dial to adjust the outlet pressure without using a gauge

8 products

High-Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

Withstand more than six times the pressure of standard valves

1 product

Heavy Duty Pressure-Regulating Valves for Water and Air

Thicker walls make these tougher than brass pressure-regulating valves

5 products

Corrosion-Resistant Compact Pressure-Regulating Valves for Water

Often used on humidifiers and fountains, they withstand deionized water and corrosive conditions

3 products

Miniature Panel-Mount Pressure-Regulating Valves for Water, Air, and Inert Gas

Our smallest valve reduces pressure in spaces where other valves can't fit

1 product

Corrosion-Resistant Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

Resist corrosion in wet environments

3 products

Compact Pressure-Regulating Valves for Water

A low-profile body fits in systems where space is at a premium

4 products

Pressure-Regulating Valves with Garden Hose Fittings for Water

Regulate pressure in light-duty water systems with garden hose connections

2 products

High-Temperature Pressure-Regulating Valves for Water, Oil, Air, and Inert Gas

Withstand temperatures up to 550° F

5 products

Plastic Panel-Mount Pressure-Regulating Valves for Water

Mount to your water system with a panel-mount nut below the adjustment knob

2 products

Back-Pressure-Regulating Valves

Back-Pressure-Regulating Valves for Water and Oil

Obstruct flow to maintain sufficient operating pressure in your system

4 products

Long-Life Back-Pressure-Regulating Valves for Water and Oil

The bronze body lasts longer than standard valves

6 products

Other Products

On-Off Valves

Start and stop flow through a line

2,989 products

Flow-Adjustment Valves

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

444 products

Mixing Valves

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

267 products

Check Valves

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

562 products

Diverting Valves

Redirect flow between ports

223 products

Airlocks

Vent gases out of flasks, carboys, and other containers without letting dust and oxygen in

1 product

Pressure-Relief Valves

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

56 products

Vacuum Breakers

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

32 products

Orifice Valves

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

994 products

Tap Valves

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

1 product

Flow-Adjustment Valve Manifolds

Control flow to multiple points from one source

2 products

Drain Valves

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

36 products

Hose and Hose Fittings

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

27 products

Float Valve Bodies

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

59 products

Float Valves

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

89 products

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

5 products

Pipe and Pipe Fittings

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

22 products

Respirator Filter Monitors

Track the quality of incoming air as it travels from your air line to your respirator

6 products