A test and adjustment of 1, pneumatic butterfly valve, butterfly valve both manual and pneumatic, hydraulic, electric parts are strict debugging before they go out, the user when the re-inspection sealing performance, import and export shall be uniformly fixed on both sides, close the disc valve, pressure on suction side, in the export side to observe any leak phenomenon, before the trial, the strength in the pipeline should open the disc plate, to prevent damage to the seal. 2, pneumatic butterfly Industrial Valves is the strict I ection before they go out, and the experiment, but there are also individual products in transit automatic screw dislocation, to readjust, pneumatic, hydraulic, etc. , please read the form a complete set of drive operation instruction. 3, electric drive disc valve factory has will control institutions opening and closing of the trip. To prevent electricity is the direction to make wrong, the user after the first switched on, the first to open the manual to half open position, in the direction of electric switch check the dial with the valve closed in the same direction. , pneumatic butterfly valve of the common faults and eliminate method 1, before installation way confirm this factory product performance, and whether the medium flow arrow is consistent with the movement conditions, and the valve cavity clean, no foreign impurities in sealing ring and disc attached, before cleaning must not be allowed to close the butterfly plate, so as not to damage the sealing ring. 2, disc plate installation supporting disc valve special flange, flange recommended HGJ54 - namely The type 91 socket welding steel flange. 3, installed in the pipeline position, the best location for the vertical loading, but can't flip. 4, use the traffic needs to adjust, a worm gear box control. 5, on and off a lot of disc valve, in 2 months time, open the worm gear case cover, check whether the butter is normal, should keep the right amount of butter. 6, check the connection parts required pressure, namely the packing sealing, guaranteeing stem flexible rotation. 7, the metal sealing butterfly valve products are not suitable for installation in the end of the pipe, such as must be installed in the end of line, take equipped with outlet flange, prevent the backlog of sealing ring, too. 8, stem installation using regular check valve using effect, find fault in a timely manner to eliminate.
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