are hydraulically operated, simple and reliable, globe valves with full bore hydrodynamic body providing an unobstructed flow path and superior performance. the valves balanced rolling-diaphragm assembly is vulcanized with a rugged radial seal disk construction, performing as the valves only moving...
and venting equipment to the tanker shipping industry. today, pres-vac is the worlds' leading supplier of high-velocity pressure/vacuum valves and around % of all tanker vessels world-wide use pres-vac equipment. pres-vac products offer an unmatched safety record: more than valves have been installed...
products electrical calibration instruments engineered solutions accessories display gas density indicators transmit gas density sensors switch gas density monitors gas density switches maintenance service equipment analytic instruments detection instruments accessories hoses and gas refill sets valves...