Thread issue
Thread Content
G refers to unsealed threads, right? In what situations are such threads used? Why are they also found in the thread connections of high-pressure valves? Experts, please help
It has been used at the pump’s drain port. “G is a 55-degree unthreaded sealing pipe thread, belonging to the Whitworth thread family. Marked as G denotes cylindrical threads. Refer to GB/T7307-2001 for national standards. The cone-on-cone fit formed by the internal threads of ZG or RC and the external threads of R or ZG in ZG threads is generally used in high-pressure applications. ” What is in the quotes are opinions reproduced from others.