China wholesale Straight Radiator Valve With Drain Off Factories - Top Quality 2 way 1inch PTFE Male Thread Water Flow Control F Shape Forged Brass Ball Valve – Peifeng

Product Description

Operation And Use Of External Thread Brass Ball Valve:

1. Before the operation of the external thread brass ball valve, it must be confirmed that the pipeline and valve have been flushed;
2. The operation of the external thread brass ball valve is completed by driving the valve stem to rotate according to the size of the input signal of the actuator: when it rotates 1/4 turn in the forward direction, the valve is closed. When the reverse rotation is 1/4 turn, the valve is open; when the direction indicating arrow of the actuator is parallel to the pipeline, the ball valve is open; when the indicating arrow is perpendicular to the pipeline, the ball valve is closed.

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