With the rapid development of the coal industry, China's coal seam mining technology has reached an advanced level. Pneumatic hard seal ball valves are one of the essential components of the hydraulic system in coal mine.

Dervos lists following common failures when the pneumatic hard seal ball valve does not work. Troubleshooting should be done from the following aspects.

1. Coil Burnout

The wiring of the pneumatic hard seal ball valve can be removed and measured by a multimeter. If there is an open-circuit, the coil could burn out.

2. The slide valve sleeve is stuck

The distance of pneumatic hard seal ball valve ‘s slide valve sleeve and spool clearance is very small. They are usually assembled into a whole. When there are mechanical impurities or too little oil, it is easy to jam.

3. Air leakage

Insufficient pressure caused by air leakage will lead to difficulties in opening and closing the pneumatic hard seal ball valve. This is due to damage of the gasket or wear of the slide valve.

Burnt coil, stuck slide sleeve and air leakage are the three common faults of pneumatic hard seal ball valve. Through the above introduction, if you encounter these three situations, you can quickly repair the pneumatic hard seal ball valve.

Of course, the best way to prevent these problem is to solve them at the very beginning by find a reliable supplier and quality products.

Xiamen Dervos is an API-Certified valve manufacturing and trading company that specializes in the production of various kinds of valve. In addition to all kinds of common valves such as gate valves, ball valves, globe valves, plug valves and butterfly valve, we also offer you the best actuators as long as our customers file their requirements.

To learn more about our industry-leading products, contact us today.