Description: Beswick Engineering’s VRD is a single stage vacuum regulator. When placed in line after a vacuum source, it will control vacuum from 0 psig (29.5 in-Hg) down to -12.7 psig (4 in-Hg).
Approximate Weight: 25g in brass and stainless (303 & 316), 15g in aluminum. 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. Vacuum source should be connected to the inlet (deeper) port.
This is a Non-Relieving regulator. You can increase the vacuum setting (greater vacuum) by turning the knob. You can not decrease the vacuum setting (less vacuum) from the initial setting unless you vent the downstream line to atmosphere.