we provide advice of submersible pump installation,submersible pump working,submersible pump troubleshooting,submersible pump stopped and other pump technology articles.
1. Using the valve with damping device
2. For a spool reducing braking cone angle
3. Repair research valve seat, replace the steel ball
4. Grinding valve hole, heavy with the spool valve, ensure reasonable clearance
5. Replace the two ends of the paper pad
6. Carefully adjust the throttle valve at both ends of the valve