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Stainless steel vacuum relief valve with 1/4 inch NPT male inlet port

Control Devices

Control Devices VRGSS025-001 Vacuum Relief Valve 1/4" NPT

SKU CH-GMMC-F2VWG

Protects low-pressure tanks, steam vessels and vacuum equipment with a stainless-steel proportional relief valve rated to 13.3 psi and 400 °F

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Stainless steel body resists corrosion in steam and vacuum service
  • Operates reliably from -20 °F to 400 °F
  • 1/4" NPT male inlet fits standard piping
  • Flow capacity up to 5 cfm for efficient venting

Vacuum Relief Valve 1/4" NPT

The Control Devices VRGSS025-001 is a proportional relief valve designed for low-pressure tanks, steam vessels and vacuum equipment. It features a stainless steel body with a male 1/4 inch NPT inlet connection. The valve operates between -20 and 400 degrees Fahrenheit.

Replaces fixed-pressure safety devices

This valve upgrades systems that currently rely on non-adjustable or single-point relief mechanisms by providing proportional opening across a pressure range. The jump is worth it when equipment requires relief that responds gradually to changing vacuum conditions rather than popping fully open at a set threshold.

Limited to 5 cfm maximum flow

The proportional relief design handles a maximum flow rate of 5 cfm and a maximum operating pressure of 13.3 psi. Applications demanding higher flow capacity or pressure settings beyond this range cannot be served by this valve.

Highlights

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Stainless steel body resists corrosion in steam and vacuum service
  • Operates reliably from -20 °F to 400 °F
  • 1/4" NPT male inlet fits standard piping
  • Flow capacity up to 5 cfm for efficient venting

Specifications

BrandCONTROL DEVICES

Questions about this item

Will the 1/4" NPT male inlet thread fit my low-pressure tank port?

The valve has a 1/4 inch NPT male inlet connection designed for low-pressure tanks, steam vessels and vacuum equipment.

How do I install the valve and what step is often missed?

Thread the male NPT inlet into the tank port using pipe sealant, then torque to spec; the step often missed is confirming the flow direction arrow points toward the vacuum source.

When should I plan to replace the valve given its operating limits?

Replace if the valve no longer opens at the 0 in Hg to 13.3 psi cracking range or if the stainless body shows corrosion after exposure beyond -20 °F to 400 °F.

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