XZX’s relief Valves are designed such that when the upstream pressure exceeds the closing force exerted by the spring, the lower stem opens, permitting flow through the valve. Flow through the valve increases proportionately to the increase in upstream pressure.

Features:

l  Maximum outlet pressure: 1500 psig (103 bar)

l  Liquid or gas service

l  Adjustable bonnet cap and adjustable set pressure

l  Balance stem design to eliminate the effect of system back pressure

l  7 color-coded springs available for a wide range of set pressure

l  Lock wired secure cap to maintain set pressure

l  Variety of seal materials

l  Label as indicator of the set pressure range

l  Manual override handle available to open the valve without changing

l  the set pressure which pressure lower than 1500 psig

l  Leak-tight performance testing for every valve at the maximum working pressure

1.      Proportional Relief Valve (61 Series)