foot valve types
dpcv valve
ball valve size chart
2 piece ball valve
Control Valve packing is usually the last line of defense against valve leakage. The packing of the Control Valve can be Ptfe v ring or flexible graphite packing. Which packing material is best for your application usually depends on the temperature of the valve. PTFE is usually the best choice for temperatures below 0 ° F and up to 450 ° F. Graphite packing is required for temperatures above 450 ° F.
