Back to OIL & GAS Sector Valve Selection
- Valves isolate,
switch, and control fluid flow in piping systems.
- Can be operated
manually (using levers or gear operators) or remotely (using electric,
pneumatic, electro-pneumatic, and electro-hydraulic
powered actuators).
- Manual valves are usually used only if they will be operated
infrequently or no power source is available.
Basic Valve Types
Isolation valves:
on/off valves - Typically operated as
fully open or fully closed
- Designed to have a
tight reliable seal during shut-off and minimal flow restriction when open
Switching valves:
converge or divert flow in a piping system Control valves: used
to modulate flow (i.e., vary flow by opening or closing by a certain
percentage)
|
|
|
