Ultra-Miniature Diaphragm Vacuum Relief Valve

CAD Model

Related Products

MEB Hex Extension Fitting

The inlet and outlet ports on the VRV series regulators are designed for use with fittings that have a hex size of 5/16" or less. To avoid interference with a larger fitting we recommend the use of an MEB-1010 series extension adapter.

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Description: The VRV functions very much like a single stage pressure regulator, except this modified design allows the user to set the outlet pressure below atmospheric pressure.  The VRV would be placed in between a vacuum line and a positive pressure source.  When the vacuum source downstream draws pressure in the line below a desired set pressure, the VRV will crack open, allowing positive pressure to enter the system.

Max Inlet Pressure Rating: 500 psig.

Vacuum Control Range: The VRV will control vacuum from 0 psig (29.5 in-Hg) down to -12.7 psig (4 in-Hg).

Materials: 303 stainless steel body.  18-8 stainless steel springs in flow path.

Approximate Weight: 25g in 303 stainless steel.  Weight will vary slightly, depending on configuration. Selecting the 2 inch. high resolution cap option adds approximately 50-60g to total weight.

Porting: 10-32 internal threaded inlet and outlet port.  Positive pressure source should be connected to the inlet (deeper) port.