The eccentricity semi-pneumatic ball valve should be noted in use:

1. Check the inner cavity cleanliness of the eccentric semi-pneumatic ball valve before installation, confirm that the parts are complete and have no foreign objects to be installed.

2. Ball valve actuator breakup and electric mode can be installed according to the user's needs and should be tested and closed twice before installation. When use after a period of time, the valve leakage, can adjust the bolt spacing of manual and electric drive, because of the eccentric structure, can wear compensation amount, must be read before the adjustment "manual and electric drive operation instruction handbook".

3. The ball valve eccentric shaft and seat seal pay adjustment must be experienced.

4. If the ball valve is not installed for the time being, it should be stored in a dry and ventilated room, where it is strictly prohibited to bump or be exposed to external forces. Need to open valve 5 °, avoid long time compression reduces elasticity and affect the service life of the seal ring.

5, the newly installed valves first try water may cause slight leakage due to transport or other reasons, can switch valve 5 ° ~ 10 ° two or three times, the valve will automatically adjust to the correct position.

6. The ball valve driving device limit stop bolt is adjusted before leaving the factory, it is not allowed to loosen. When the valve is used if leaks occur after a long period of time, can loosen the drive to limit a fastening bolt, and lock nut rotating a times, then the valve is shut, to eliminate the because of the action of eccentric wear clearance, ensure the continue to use, must not without loosening drive forcibly close the valve under the condition of limit a fastening bolt, that this might damage the device drivers.

7, eccentric and pneumatic ball valve is a one-way valve sealing, direction of the arrow on the valve body for the valve seal, rather than the medium flow direction, when as a globe valve when installation, the arrow is the same as the medium flow direction (i.e., positive installation), so far as valves are unavailable,

The arrow is opposite to the medium flow (reverse installation).