jktl valve,ball valve
HEBEI TONGLI AUTOMATIC CONTROL VALVE MANUFACTURING  CO.,TLD.

Follow us

Call Today!


Concentric win the future with the force

+86 317 8338351
 Large diameter welding ball valve, electric welding ball valve installation precautions
1) Large diameter electric welding ball valve in the operation and installation must be confirmed before the pipeline and the valve has been washed to avoid the debris, affecting the use of the valve effect.
2) Operation of the valve actuating the actuator input signal size Driving the stem rotation is completed: When the forward rotation is 1/4 turn (90 degree), the valve is turned off. When the reverse rotation is 1/4 turn (90 degree), the valve opens.
3) When the actuator direction indicator arrow is parallel to the pipeline, the valve is open; when the arrow is perpendicular to the pipeline, the valve is closed.