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Stainless steel vacuum relief valve with 3/8 inch NPT male inlet

Control Devices

Control Devices VRGSS038-001 Vacuum Relief Valve 3/8" NPT

SKU CH-5PEE-J10FE

Stainless-steel proportional vacuum relief valve for low-pressure tanks and steam vessels, 3/8″ NPT male inlet, 5 cfm max flow, 13.3 psi cracking pressure, −20 °F to 400 °F range

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Stainless steel body resists corrosion from -20 °F to 400 °F
  • 3/8″ male NPT inlet fits standard vacuum equipment piping
  • Maximum flow of 5 cfm handles steam vessels and vacuum systems
  • California Proposition 65 warning informs buyers of reproductive-harm chemical

3/8" NPT Stainless Vacuum Relief

The Control Devices VRGSS038-001 is a proportional relief valve built for low-pressure tanks, steam vessels and vacuum equipment. Its stainless steel body handles temperatures from -20 to 400 degrees F and a maximum operating pressure of 13.3 psi. The male 3/8" NPT inlet provides a direct thread connection for piping or vessel ports. Flow capacity reaches 5 cfm at the set cracking pressure.

Installers needing proportional vacuum protection

This valve suits maintenance crews and OEMs fitting proportional relief on small receivers, vacuum pumps or steam headers where the cracking pressure must stay at or below 13.3 psi. It is not intended for high-volume blow-down applications that exceed the 5 cfm flow limit. Systems requiring a higher set pressure or larger port size should look at alternative valve series.

Cracking pressure range 0 to 13.3 psi

The adjustable cracking pressure spans from 0 inches of mercury up to 13.3 psi, making this the decisive specification for selecting the valve. Confirm that your system relief setting falls inside this window before ordering. The proportional relief action modulates open as vacuum approaches the set point, preventing sudden pressure spikes in the protected vessel.

Highlights

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Stainless steel body resists corrosion from -20 °F to 400 °F
  • 3/8″ male NPT inlet fits standard vacuum equipment piping
  • Maximum flow of 5 cfm handles steam vessels and vacuum systems
  • California Proposition 65 warning informs buyers of reproductive-harm chemical

Specifications

BrandCONTROL DEVICES

Questions about this item

How can I confirm the valve is relieving pressure correctly once installed?

The proportional relief design opens gradually as vacuum approaches the 13.3 psi cracking pressure; observe smooth venting without sudden discharge.

What comes with the valve and what extra fittings might I need?

The valve body is stainless steel with a 3/8" male NPT inlet; mating female NPT pipe or hose fittings for your tank or vessel are purchased separately.

Which cracking-pressure setting should I select for a low-pressure tank?

This model operates between 0 in Hg and 13.3 psi; choose it when your system relief point falls anywhere in that range.

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