High pressure regulating pneumatic valve installed

and high pressure regulating pneumatic valve parts processing, cooperate with precision, therefore, adjust the pneumatic valve before installation, should be thoroughly clean the pipe system, will rule out clean dirt and welding slag, lest jam phenomenon, regulating pneumatic valve runtime pneumatic valve in front of the entrance line should be added a hole size less than mm filter.
and high pressure pneumatic valve is larger, heavier, appearance size, therefore, regulating pneumatic valve should be installed upright, where close to the ground or floor level greater than m in pipe, should set up the platform, as far as possible in order to adjust, check and remove, or change filler, use process cannot remove or loose coupling flange and pneumatic valve nut.
and regulating pneumatic valve installed, pneumatic direction arrow on the valve body shall conform to the medium flow direction.
, if the adjustment of the pneumatic valve nominal diameter and nominal pipe size is different, should be added between the tapered section.
and regulating pneumatic valve generally by-pass pipe should be set up, so that in the control system can switch failure or maintenance, from production.
and regulating pneumatic valve installed, should leave enough remove the actuator cover space, so as to layout, adjustment and inspection.
and a welding of pipeline connection control pneumatic valve, its interface on the pneumatic valve and pipe butt welding, welding, suggest to use argon arc welding backing ( In case of welding slag fall pneumatic valve and pipe, and then conducts regular electricity ( Or gas welding, the welding process by repeated grinding, multi-pass welding, and to pay attention to heat preservation, pneumatic valves and pipes, flange connection adjust the JB - The Pg, KGF/cm, pipe fittings and fasteners, standard flange, lens gasket and fastener.
and regulating pneumatic valve and actuator assembly factory, the machine has been debugging good, don't need to be adjusted, but in the process of transportation or installation cannot be fully lined up violent impact or drop phenomenon, therefore, the user after incoming inspection or installed on the pipeline, need and regulator ( Computer together make the adjustment, the adjustment methods and steps according to the instruction and accompanied with the actuators operating instructions, in the process of commissioning or formal operation, such as found on the pneumatic valve body and the flange or pneumatic valve cover packing leakage, respectively will master pneumatic valve cover nut or packing gland nut and tighten, and adopt a nut tightening method for many times, if uneven force, will make the pneumatic valve cover and packing pressure plate skewed, lead to pneumatic valve rod bending and impact pneumatic valve normally open, second, tighten the degree is limited to not leak, do not force too big, lest attaint parts, at the same time, the packing too tight, may also reduce the sensitivity adjustment regulating pneumatic valve, pneumatic seat leakage (if it is found that Leak too much, more than the prescribed standards of index, may be pneumatic valve core mechanical zero or in contact with the pneumatic valve seat actuator signal zero occurred in the process of transportation or use of deviation caused by, or pneumatic valve, pneumatic valve seat have mechanical damage, for the former, according to the pneumatic valve attached holds institutions use manual introduces methods to readjust, if the latter, the need to remove the pneumatic valves, remove damaged pneumatic valve, pneumatic valve seat and the mechanical processing, grinding to repair or replacement.
and regulating pneumatic valve actuator is good at the time of the axial thrust in the selection, I couldn't move, if can check whether the control signal is disturbed, the first is limited to limit mechanism or pneumatic valve rod bending deformation occurs 'stuck' phenomenon, etc.