We polished the drilling hole,more smooth
Pressure relief valves, as the name suggests, relieve interior tank pressure when it rises above the 14.7 PSI (1 atmosphere). Used for low pressure system. A pressure vacuum valve prevents the interior pressure from going below -1.5 PSI and thus potentially imploding the tank. Situations where this may occur is during a quick cool down, such as after a cleaning process, or when draining quickly. For protection of tanks against over-pressure or vacuum. Required for most tanks to be covered by Warranty
Vacuum fixed at -1-1.5 PSI
100% Stainless Steel SS304
Fixed at 14.7-17 PSI, max can be 2.8bar
1"-1.5'' Tri Clamp fitting
All Springs SS304
Silicone food grade seals
30 days on seals. All valves require periodic maintenance