Electropneumatic control valves can be used to control the operation of pneumatically activated vacuum valves. Control valves are available with different electrical supply voltages and frequencies to suit your application.
This product is a 5 Port Lightweight Electropneumatic control valve.
|Valve||Valve Type||Recommended Control Valve Configuration||Schematic|
|GV gate valves||Double-acting cylinder with no spring return||1 x 5-port lw||Refer to Schematic 3|
|PVPK pipeline valves soft start QSB 250P||Single-acting cylinder with spring return||1 x 3-port||Refer to Schematic 1|
|BRV backing/roughing valve||Double-acting cylinder with spring return to the mid-position (that is, isolated position)||2 x 5-port lw||Refer to Schematic 2*|
|1 x 5-port lw||Refer to Schematic 4 †|
|QSB63/100/160 quarter swing butterfly valves, Diffstak isolation-valves||Double-acting cylinder with no spring return||1 x 5-port||Refer to Schematic 4|
* This configuration allows the use of the isolated position of the vacuum valve.
† This configuration only allows the use of the roughing and backing positions of the vacuum valve.
We recommend that you fit a shut-off valve, filter and pressure regulator to the pneumatic supply. Edwards does not supply these items.
|Pneumatic supply pressure|
|bar gauge||3.4 – 4.8|
|psig||50 - 70|