GUIDANCE ON VALVE TYPE SELECTION -b.ricardo

Plug valves – lubricated balanced/sleeved, Lined/expanding/lift. Diaphragm valves – weir/full flow/pinch. Isolation efficiency 1. Soft seated valves should normally be selected only for clean service. Soft seated block valves, such as ball valves, lined plug valves, soft seated gate valves, and butterfly valves can provide a good tight shut

  Balanced, Valves, Plugs, Plug valves, Lubricated, Lubricated balanced