Ultra-Miniature Diaphragm Vacuum Relief Valve

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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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Overview

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.

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

Materials: 18-8, 303 and 316 Stainless Steel components.

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.