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Meaning of the needle valve model number below the pressure gauge

2021-12-01View Original

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There are several pressure gauges in our unit equipped with needle valves labeled JJM1-16P. I would like to ask the experts here what the four letters and numbers in JJM1 stand for
Reply #22021-12-03
It has always been called that – a double internal thread pressure gauge valve. :lol

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