Designed to test Girard and other various manufacturers pressure relief vents and vacuum breakers with a 3″ and 4″ NPS threaded connection. Built with easy to read digital gauges registering both pressure and vacuum settings. Gauges are calibrated to a .0001(+/-)% and can be recalibrated by the manufacturer when necessary.
This portable test stand is built with a marine grade junction box to withstand even the harshest environments. Test box is designed in accordance with all applicable rules for testing DOT407, DOT412, MC307 and MC312 tank trailers
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