Could an expert please take a look and tell me what model of valve it is? Is it US standard?
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Could an expert please take a look and tell me what model of valve it is? Is it US standard?
The first guess is a check valve; the second guess is a low-temperature gate valve; the third one is also a gate valve, with threaded connection
The third plug-welded gate valve appears to be of the American standard; its diameter seems to be in inches
1. Check valve. 2. Hidden stem gate valve. 3. Welded gate valve
Valve standards now generally include both metric and imperial nominal pressures and nominal sizes; therefore, it is not possible to determine whether a valve follows Chinese standards or American standards merely by looking at the markings on its surface. The above diagrams all belong to the forged steel valve series. The national standard is JB/T 7746, while the American standard is API 602
1. (A105) Forged steel check valve; pressure cannot be determined. 2. (A105) Forged steel national standard gate valve Z41H(Y) – pressure cannot be determined; DN20. 3. (A105) Forged steel socket-welded gate valve Z61Y-800LB, DN15
Just to add, they should all be 150#, but it’s not possible to tell from the national standards
Check valves, gate valves, socket-welded gate valves (American standard)
The model H2*-J101 indicated on the check valve is presumably the model for American standard valves