... 2.5Mpa, that is, pump outlet pressure= inlet pressure + head ≤2.5Mpa. According to the maximum pressure to bear, pump body and cover ... cast steel (2.5Mpa, including stainless steel). Please detail the pressure to bear or materials when placing an order. 2. Working ... cup, and can be oiled by high pressure oil gun. Seal Use of mechanical seal, seal wearing auxiliary made of graphite and tungsten carbide ...