1. ball valves; 2. up to 7250psi; 3. blow out proof design; 4. positive seal; 5. Zero leakage, 100% tested Bolev Hydraulics:Bolev facilities, welcome your visit! 7250psi hydraulic high pressure valve KHB high pressure ball valve, also called BKH ball valves in the market, good for shut off a hydraulic pipe line, applicable in many industries, such as machine build, farm machinery, metallurgy, oil ...