How many times should valves be turned according to standard practice?

Turning valves a specific number of times is crucial for ensuring they operate correctly and do not suffer damage. Standard practice often dictates that valves should be opened and closed in a manner that allows them to function efficiently without putting undue stress on the mechanism.

The recommended practice of turning valves 3 times plus or minus 2 times the size of the pipe accounts for both the type of valve being used and the size of the pipe. This method provides a more accurate adjustment to accommodate different valve designs—ensuring they are neither overly tightened nor under-tightened. It allows for enough clearance to fully open or close the valve, securing a complete shutoff or ensuring full flow when open, while also preventing wear and tear that can come from improper operation.

This approach aligns with industry standards that emphasize the importance of not only the number of turns but also taking the piping system into account, promoting operational reliability and longevity of the components involved.