2) It is forbidden to weld the flange after installing the valve to avoid damaging the valve sealing ring. The installation distance of the valve reserved for the pipeline shall be suitable, and gaskets shall be added on both sides of the flange.
3) The center of the two pipes shall be coaxial with the valve diameter center, and the flange surface shall be flat without large deflection, so as to ensure the clamping and normal operation of the valve. Tighten the bolts evenly and symmetrically.
4) The valve has been adjusted and dynamic tested before leaving the factory, and the gas circuit has been well connected.
5) The main wearing parts are seal ring and valve core.