Instrument pipe fittings
Thread Content
What do the instrument pipe fittings PSW, TSW, NU, UN mean? Please provide relevant information
Just these few letters as a description, nothing else?
UN stands for United Nations.
Pressure, temperature safety cover?
There isn’t enough information; please add more pictures, textual descriptions, etc. Everyone can help by taking a look – it’s not possible to figure things out by guessing alone.
Pressure gauge connector Φ14NUxM20x1.5(F), terminal connector 1/2\"NPT(M)×Φ14UN, conversion connector 3/4\"PSW×Φ14TSW
Okay, this is the content from the instrument material list in the design drawings
Pressure gauge fitting Φ14NUxM20x1.5(F): One end features a 14mm collet (the thread of the collet nut is UN thread), while the other end has a female M20*1.5 thread. Terminal fitting 1/2\"NPT(M)×Φ14UN: One end features 1/2\" NPT male threads, while the other end has 14mm double ferrule fittings (the threads on the ferrule nuts are UN threads). Adapter fitting 3/4\"PSW×Φ14TSW: One end uses 3/4\" PIPE socket weld connection, and the other end uses 14mm TUB socket weld connection
3/4"PSW×Φ14TSW: Socket welding at one end for 3/4” PIPE, and butt welding at the other end for 14mm TUB