1） Pneumatic； Air source pressure,Single or double action, Fail:FC/FO

2） Electric； Voltage, explosion-proof requirements, switch type or regulating type, integrated or separated

3） Electro-hydraulic; Voltage, explosion-proof requirements, switch type or regulating type, integrated or separated

4） Hydraulic；

5） Pneumatic-hydraulic；

1） Straight stroke; Confirm stroke, thrust (excluding safety factor)

2） Angular travel; Confirm torque (safety factor not included in package)

3） Partial-turn;

4） Multi-turn; Confirm the number of full stroke turns

Confirmation of valve type: straight-through control valve, plunger valve with straight stroke; Partial rotation for butterfly valve, ball valve and plug valve; Multi-turn gate valve and stop valve.

Manual mechanism

1） Without

2） With

1）Not required

2） Required

2-1） Close within a few seconds

2-2） Open within a few seconds

2-3） Full travel time

1） Normal temperature

2） High temperature resistance

3） Low temperature resistance