Eccentric half pneumatic ball valve should be noted in use:

  1, before the installation of the first inspection of the eccentric half pneumatic ball valve cavity cleanliness, to ensure that the parts are perfect and no foreign body can be installed. 2. The ball valve drive device is divided into two kinds of manual and electric mode, which can be fitted according to the user's needs, and the valve should be open and closed two times before installation.

  When the use of a period of time, valve leakage, can adjust the manual and electric drive device limit fastening bolts, because of eccentric structure, can compensate for the loss of wear, adjustments must be read in detail before the "manual and electric drive device use manual."

  3, the ball valve eccentric shaft and valve seat seal pay adjustment must have experienced personnel to carry out. 4. If the ball valve is not installed temporarily, it should be stored in a dry and ventilated room, and it is strictly prohibited to bump or be subjected to external forces.

  The valve should be opened 5° to avoid long-term compression of the seal ring and reduce elasticity and affect the service life.

  5, the new installation valve first Test water may be caused by transport or other causes of a slight leakage, can switch valve 5°~10° sessions, valve will automatically adjust to the correct position. 6, Ball valve drive device limit bit fastening bolts before the factory commissioning finished, not allowed to loose. When the valve is used for a long period of time, if there is a leak, the drive device can be limit to loosen the bolt, reverse the clock rotation and lock the nut, and then close some of the valve, due to the role of eccentric to eliminate wear clearance, to ensure that the valve continue to use, must not loosen the drive device limit position fastening bolts in the case of forced closure of the valve,

    This can damage the drive device. 7, eccentric half pneumatic ball valve is one-way sealing valve, the arrow on the body is the valve seal direction, not the media flow, when installed as the cut-off valve, the arrow and the media flow is the same (that is, forward installation), as the return valve, the arrow and the media flow opposite (reverse installation).