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Brass vacuum relief valve with 2 inch NPT male inlet

Control Devices

Control Devices VRG200-001 Vacuum Relief Valve 2" NPT

SKU CH-CJNM-ZCZSH

Brass vacuum relief valve for low-pressure tanks and steam vessels, 2-inch NPT male inlet, 120 cfm max flow, proportional relief up to 28 in Hg vacuum, operates -20 to 400 °F

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Handles vacuum up to 28 in Hg for steam vessels and vacuum equipment
  • Brass body withstands -20 °F to 400 °F operating range
  • Delivers up to 120 cfm flow through 2" NPT male inlet
  • Complies with California Proposition 65 chemical-disclosure requirements

Ideal for low-pressure tanks and steam vessels

This vacuum relief valve suits operators of low-pressure tanks, steam vessels and vacuum equipment who need reliable proportional relief. The brass body handles operating pressures up to 13.3 psi and vacuum levels to 28 in Hg. It is designed for new installations or replacements where a 2-inch NPT male inlet is required.

Verify port size and pressure range before ordering

Confirm that your system uses a 2-inch NPT male connection and that the maximum operating pressure does not exceed 13.3 psi. The valve functions between -20 degrees F and 400 degrees F, so ensure the process temperature stays within this window. Check that the required flow capacity aligns with the 120 cfm maximum rating.

Brass construction and proportional relief change

The brass body resists corrosion in steam and vacuum service, reducing the frequency of inspections compared with uncoated steel alternatives. Proportional relief action modulates opening instead of snapping fully open, which minimises pressure spikes and extends seal life. California Proposition 65 warnings apply, so factor appropriate handling procedures into site safety plans.

Highlights

  • Protects low-pressure tanks with proportional relief up to 13.3 psi
  • Handles vacuum up to 28 in Hg for steam vessels and vacuum equipment
  • Brass body withstands -20 °F to 400 °F operating range
  • Delivers up to 120 cfm flow through 2" NPT male inlet
  • Complies with California Proposition 65 chemical-disclosure requirements

Specifications

BrandCONTROL DEVICES

Questions about this item

Does the valve come with any gaskets or mounting hardware, or do I need to buy those separately?

The valve is supplied as a single brass body with a 2" NPT male inlet; no gaskets, flanges or mounting bolts are included, so you will need to source thread sealant and any required piping components separately.

Should I select a different model if my system runs above 13.3 psi or needs more than 120 cfm?

This valve is rated for a maximum operating pressure of 13.3 psi and a maximum flow of 120 cfm; if your application exceeds either limit you will need a valve with higher ratings.

What does the 28 in Hg vacuum rating mean for day-to-day operation?

The valve will begin to open proportionally as vacuum approaches 28 in Hg, protecting low-pressure tanks and steam vessels from collapse while maintaining flow up to 120 cfm.

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