... pressure system 2) diaphragm protector or piston seperator 3) box mount or panel mount Gauge provides quick, accurate check of mud pump ... protector or 1:1 piston separator, a high-pressure hose and hand pump.Features:Standard capacities included: 7MPa, 14MPa, 21MPa, ... . 360 degree calibration allows operator to view the smallest pressure changes. Damper allows operator to adjust gauge sensitivity to ...