It is easy to take valves for granted. They have been used since the days of the Roman Empire and designs are pretty routine, so people tend to assume that a standard valve will do the job. But that ...
IH Air Operated hydro test pump 45k max w.p. with 20k relief valve. Martin Decker 20k indicator, Barton 20k charter recorder with Autoclave valves and fittings. Calibrated 2021. Not used since.
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