Pressure Ports | McMaster-Carr

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For Use With

System of Measurement

Pipe Size

Inlet Pipe Size

Body Material

Thread Type

UN/UNF (SAE Straight)

Material

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

Fitting Connection

Set Pressure

Inlet Thread Type

Gender

Shape

Valve Function

Back-Pressure Regulation

Maximum Temperature

Valve Type

Back-Pressure Regulator

Reduced Pressure Zone

Maximum Pressure

1,000 psi to 1,999 psi

2,000 psi to 2,999 psi

3,000 psi to 3,999 psi

Actuation

Seal Material

Inlet Gender

RoHS

Compliant with Exemptions

REACH

Inlet Connection

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

Yes

DFARS Specialty Metals

Exempt

Export Control Classification Number (ECCN)

883 Products

Fluid Handling

Breather Vents

Maintain even pressure and vacuum as temperatures change by allowing airflow in tanks and enclosures

147 products

Pressure-Relief Valves

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

234 products

Pressure-Regulating Valves

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

300 products

Vacuum-Regulating Valves

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

14 products

Pressure-Relief Discs

Rupture at a set pressure or temperature to vent fluid and gas and protect machinery; one-time use

39 products

Flow-Adjustment Valves

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

26 products

Manual On-Off Valves

Start and stop flow through a line

31 products

Vacuum Breakers

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

25 products

Air Vent Valves

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

22 products

Diverting Valves

Redirect flow between ports

4 products

Backflow-Prevention Valves

Dual checks stop flow from reversing and contaminating your system

26 products

Lubricating

Grease Fittings

Create an inlet on equipment and machinery for injecting lubricant; also known as Zerk fittings

1 product

Electrical Power, Networking, and Controlling

Cord Grips

Securely connect cords to enclosures while sealing out dirt and moisture

8 products

Electrical Enclosure Vents

Attach to sealed enclosures so air can flow to equalize temperature and pressure

5 products

Facility and Grounds Maintenance

Air Admittance Valves

Allow air into drain, waste, and vent systems so you don't have to vent plumbing to the outdoors

2 products