When the handle on a gate valve is turned clockwise as far as it will turn, what is the state of the valve?

When the handle on a gate valve is turned clockwise as far as it will turn, the valve is in a closed state. This is a standard operation for many gate valves, where turning the handle clockwise typically tightens the seal, effectively shutting off the flow of liquid or gas through the pipe.

In many cases, gate valves are designed so that they open by turning the handle counterclockwise and close by turning it clockwise. This closure occurs due to the movement of the gate, which is a barrier that rises to allow flow when the valve is open, and drops to block flow when the valve is closed. Thus, if you have turned the handle fully clockwise, it indicates that the gate has been fully seated against the valve body, ensuring no passage of substances.

Understanding this mechanism is crucial for proper operation and maintenance of pool systems and other hydraulic or plumbing systems where gate valves are commonly employed.