Pneumatic ball valve how to solve the reversing pneumatic valve pressure shock

the reversing pneumatic valve is to have two or more flow form and the direction of the two above oil mouth control pneumatic valve. Is to realize the communication of the hydraulic oil flow, cut off and the reversing, and pressure unloading and sequential control of pneumatic valves. Reversing pneumatic valve pressure shock solution: with damping device, adopting the reversing pneumatic valve, remaking a pneumatic valve core is reduced braking cone Angle, research the reversing pneumatic valve seat, replace the steel ball, grinding the reversing pneumatic valve pneumatic valve hole, heavy with pneumatic valve, to ensure reasonable fit clearance, replacement on both ends of the paper pad, carefully adjust the reversing pneumatic valve throttling at the ends of the pneumatic valve