Adrian Collier - XS Scuba Pro Valve vs. Thermo Pro Valve

XS Scuba Pro Valve vs. Thermo Pro Valve

Below are two images that show the differences between a XS Scuba Pro Valve and a Thermo Pro Valve.



For the most part the two valves are identical. The XS Scuba Pro Valve above uses a bonnet o-ring. Various websites indicate that the bonnet o-ring size is a Viton 015 which is incorrect. While the o-ring fits, it doesn't seal the valve correctly and will leak once pressurized.



The Thermo Pro Valve instead uses a copper crush washer (not shown) to seal the valve assembly. Also not shown is the teflon packing that goes in-between the hand wheel and bonnet nut. Valve service is easy and straight forward. The plug and seat assembly, teflon packing, stem o-ring (Viton 010), and inlet o-ring (Viton 214) are universal between valves. The remaining parts are cleaned and reused.


Seattle, WA.


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