Office of Steam Forum for Model & Toy Steam Gas & Hot Air Engines

Black gates engineering S/V atop the Jensen boiler.  Please note:  this has been adjusted to pop at 28 psi.  These incredibly well made SV’s can be adjusted by turning a set screw on top of the SV.  I tested it with a manometer on another boiler and using a scrubber adjusted it to pop off at 28.  It can be set as low as 15 psi, and as high as 80.

Shout out to Charlie, he had a few of these laying around and gave me a spare.  I’d say they’re the best SV’s to date.