Pneumatic ball valve installation and adjustment

Reality mining is widely used in the electric valve, electric valve is usually quarter-turn actuators and butterfly valve as a whole through the mechanical connection, after installation and debugging. According to the electric ball valve action pattern classification are: switching type and external regulation. The following is to further about the electric ball valve.
points two electric ball valve installation:
1) , installation position and height, import and export direction must comply with the design requirements, pay attention to the medium flow direction should be consistent with the body the direction of the arrow, the connection should be firmly connected.
　　2) , electric ball valves, a visual inspection must be conducted before installation, the valve nameplate should be consistent with existing national standards 'sign manual valves GB 12220. For the working pressure is greater than 1. 0 MPa
and the valve with the function of cutting off on ZhuGanGuan, strength and strict performance test should be done before the installation, qualified rear must use. Strength test, the test pressure for the nominal pressure of 1. 5 times, duration of not less than 5 min, shell and packing shall be no leakage of valve shall be qualified.
electric ball valve can be divided into the form of the structure offset plate, vertical plate, inclined plate and leveraged. Can be divided into the form of the sealed type seal and hard seal type two kinds. Soft seal type generally use rubber ring seal, metal hard seal type usually adopt ring seal.
according to the electric ball valve connection type can be divided into flange and clamp connection; According to the methods can be divided into manual transmission, gear transmission, pneumatic, hydraulic and electric.

1 electric ball valve installation and maintenance, when installed, the disc will stop in closed position.
2, open position should be in accordance with the valve ball to determine the Angle of rotation.
3, ball valve with a bypass valve, open the bypass valve should be taken before opening.
4, electric ball valves shall be installed according to the manufacturer's installation instructions and big weight of ball valve, should set up a solid foundation.