20 pneumatic valve installation considerations

when installing pneumatic valves, need to clean the inner cavity and sealing surface, whether connecting bolts evenly tighten, check whether the packing pressure.
and installation of pneumatic valve is closed.
and specifications of the pneumatic valve, pneumatic control pneumatic brake valve should be vertical, in order to avoid bias due to greater weight of pneumatic valve core side, this will produce leaks.
and have a correct installation process standards.
and pneumatic valve should be installed according to allow working position, but must pay attention to maintenance and operation is convenient.
, as the installation of the pneumatic valve flow direction of medium should be consistent with the pneumatic marking the arrow on the body, often do not open/close and need not strictly guarantee in closed condition of pneumatic valves, can pack, to use medium pressure make it closed.
, when tighten the clamping screw, pneumatic valve should be in open state, so as not to crush the pneumatic valve sealing surface.
and low temperature in pneumatic valve orientation should be under cold as far as possible do before opening and closing test, requires flexible no jam phenomenon.
pneumatic valve, liquid should be configured to pneumatic valve rod and horizontal into ° Angle, avoid outflow liquid along the pneumatic valve stem, more serious is to avoid leakage.
bare, large air separation tower in the cold, under the cold of a pneumatic valve flange connection preload, prevent cold not the phenomenon of leakage and leakage in low temperature.
, it is strictly prohibited in the installation of the pneumatic valve stem when climbing scaffold.
, after all pneumatic valves in place, should be an opening and closing, flexible no jam phenomenon for qualified.
and pneumatic valves shall be installed in the pipeline before positioning in general. Piping to nature, the wrong position can't hard pull, lest leave prestressed.
and non-metallic pneumatic valve, some hard brittle, some strength is low, operation, opening and closing force cannot too big, cannot make MengJin especially. Also note that no object knock against.
, when handling and installation of pneumatic valve, to prevent accidents of knock against scratches.
, the new pneumatic valve when using, packing don't press too hard, not to leak for degrees, in order to avoid the pneumatic valve rod pressure is too great, to speed up the wear and tear, and opening and closing.
prior to installation, pneumatic valve, pneumatic valves comply with the design requirements and related standards to confirm.
before, installation of pneumatic valve, pipe internally to clean, remove impurities such as iron filings, prevent pneumatic valve seal seat with foreign body.
pneumatic valve installation at room temperature, high temperature, after use, temperature, expansion bolt is heated, clearance increase, so must tighten again, should pay attention to this problem, otherwise easy to leak.
, the flow direction of medium pneumatic valves to confirm installation, installation form, and hand wheel position is in line with the regulations.