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Stainless steel vacuum relief valve with 1/2 inch NPT male inlet

Control Devices

Control Devices VRGSS050-001 Vacuum Relief Valve 1/2" NPT

SKU CH-61TK-JGR6E

Stainless-steel proportional vacuum relief valve for low-pressure tanks and steam vessels, 1/2" NPT male inlet, up to 10 cfm flow and 13.3 psi cracking pressure

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Handles vacuum equipment flow rates up to 10 cfm
  • Stainless steel body resists corrosion in steam vessels
  • Operates reliably from -20 to 400 degrees F
  • Male 1/2 in NPT inlet fits standard piping

Stainless Steel Vacuum Relief Valve

The Control Devices VRGSS050-001 is a stainless steel vacuum relief valve designed for low-pressure tanks, steam vessels and vacuum equipment. It features a 1/2 inch male NPT inlet connection and proportional relief operation. The body construction suits demanding industrial environments.

Suited for systems needing pressure protection

This valve suits installations requiring proportional relief up to 13.3 psi maximum operating pressure and 10 cfm maximum flow rate. It operates between -20 and 400 degrees Fahrenheit. Buyers needing higher pressure ratings, larger port sizes or different connection types should look elsewhere.

1/2 inch male NPT inlet connection

The inlet port uses a 1/2 inch male NPT thread, which determines compatibility with existing piping. Verify this exact connection type and size before purchase to ensure proper fit. The cracking pressure range spans 0 in Hg minimum to 13.3 psi maximum.

Highlights

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Handles vacuum equipment flow rates up to 10 cfm
  • Stainless steel body resists corrosion in steam vessels
  • Operates reliably from -20 to 400 degrees F
  • Male 1/2 in NPT inlet fits standard piping

Specifications

BrandCONTROL DEVICES

Questions about this item

What thread size and type does the inlet port use for mounting?

The valve has a male 1/2 inch NPT inlet port that threads directly into a matching female fitting on the tank or vessel.

How is the valve installed and what common step is missed?

Apply thread sealant to the male NPT threads, screw the valve in by hand then tighten with a wrench on the hex body; the step often missed is using a wrench on the hex rather than the relief cap to avoid internal damage.

What maintenance or replacement will this vacuum relief valve need over time?

Inspect the proportional relief mechanism periodically for corrosion or debris; replace the unit if the cracking pressure drifts outside the 0 in Hg to 13.3 psi range or if leakage occurs at the seat.

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