Purification Daily Question 2018-9-29 (Fill-in-the-blank)
Thread Content
The operation mode in which the control valve closes when there is signal pressure and opens when there is no signal pressure is called (), while the opposite mode is (). Gas opening and gas closing are determined by the ( ) of the actuator. Air-locked type, air-unlocked type; forward and reverse operation as well as forward and reverse installation of valve components
Air-shut type, air-open type, direct/reverse action, and proper/misplaced installation of valve body components
Air-lock type； Air-operated ； Reaction forces and the correct/misplaced installation of valve body components
The operation mode in which the control valve closes when there is signal pressure and opens when there is no signal pressure is called (air-operated closed), while the opposite mode is (air-operated open). Gas opening and gas closing are determined by the actuator’s diaphragm head.
Air-locked type, air-unlocked type; forward and reverse operation as well as forward and reverse installation of valve components
Air-shut type, air-open type, forward/reverse action, and forward/reverse installation of valve body components
The operation mode in which the control valve closes when there is signal pressure and opens when there is no signal pressure is called (air-operated closed), while the opposite mode is (air-operated open). Gas opening and gas closing are determined by the (positive and negative actions of the actuator and the correct or reversed installation of the valve components).
Air-off type, air-on type, direct/reverse action, and positive/negative installation of valve body components
Air-locked control valve, air-open type; positive and negative operation, as well as reversible installation of the valve body components
Air off, Air on; reverse operation and correct/reverse installation of valve components