2、 Installation of pneumatic ball valve
Any section of the pneumatic ball valve can be installed at the upstream end, and the handle ball valve can be installed at any position of the pipeline. If the ball valve is equipped with an actuator (such as a gearbox, an electro pneumatic actuator), it must be installed vertically, and the inlet and outlet of the valve are in a horizontal position.
The sealing gasket shall be installed between the pneumatic ball valve flange and the pipeline flange according to the pipeline design requirements.
The bolts on the flange shall be tightened symmetrically, step by step and evenly.
If the ball valve adopts pneumatic, electric and other actuators, complete the installation of air source and power supply according to the instructions.

Metal ball cone hard sealing connection
1) Cut and peel the protective sleeve (the same connection with the metal flat gasket seal).
2) Cut the bellows (the same connection as the metal flat gasket seal).
3) Install the connecting nut into the exposed end of the bellows, and then use the special tool for bellows expansion to stop the expansion, so that the first wave bottom at one end of the bellows is about the same as the outer diameter of the front and rear wave peaks.
4) For trimming, use a hand-held grinding wheel or scissors to remove the part of the round corner of the orifice at one end of the bellows after bulging, and the edge of the orifice shall be free of burrs after trimming.
5) The conical flange shall be processed with the special tool for processing the conical flange. The corrugated end shall be processed into the conical flange, and the flange surface shall be polished with 200 # sandpaper.
6) The sealing connection is connected with various metal ball cone hard sealing joints or valves by connecting nuts.