Safety valve model
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I have purchased two types of safety valves here, with models YFA42C-150C 2J3 and YFWA42C-150P3 2J3. I would like to ask what the letter \"W\" between YFWA and YFA stands for What’s the difference anyway? Where is the material of the valve indicated? Thank you all, experts. What does YF mean?
A stands for safety valve, with the manufacturer’s own code preceding it.
This post was last edited by City Boy on 2017-8-20 at 10:05. W denotes a bellows-backpressure balanced safety valve, while YF refers to a regular safety valve. Material P3 is 304L stainless steel, while 2J3 refers to the inlet and outlet diameters
The restoration on the 3rd floor should be almost done by now
This post was last edited by any0668 on 2017-8-20 at 13:17. YFA42C-150C 2J3: YF is the series code, A refers to the safety valve, 4 denotes the flange, 2 indicates a spring-loaded full-open safety valve, C stands for carbon steel, 150 is the pressure rating, 2 is the inlet diameter, J is the throat diameter code, and 3 is the outlet diameter. Another W denotes the bellows, and the material P3 is 304L stainless steel. It depends on the specification sheet or data sheet.