What does W represent in copper ball valve Q11W-16T?
Valve sealing materials are all valves of the body material, sealing surface material code with "W" said
According to the provisions of the JB/T 308-2004 valve type programming method:Q== ball valve1== connection: internal thread1== ball valve structure: straight through flowW== sealing surface material: body. That is, the sealing material is the same as the body material-16== pressure rating: 1.6MPaT== body material: copper or copper alloy
