What are the common faults and eliminate method pneumatic valve?

Pneumatic valve test and adjustment, valve both manual, pneumatic, hydraulic and electric components are after 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. , pneumatic valve before shipment are through strict inspection and 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. , electric drive disc valve factory has will control institutions opening and closing of the trip. To prevent power on is the direction to make wrong, users in the D after turning on the power supply at a time, first open the manual to half open position, in the direction of electric switch check dial with the valve closed in the same direction. Common faults and elimination method of pneumatic valve, before installation to confirm our products performance and whether the medium flow arrow is consistent with the movement conditions, the body and will be clean, no foreign impurities on the sealing ring and the board have attached, before cleaning must not allow closing plate, so as not to damage the sealing ring. Mating flanges, disc plate installation recommended disc valve special flange, HGJ - namely Type socket welding steel flange. , installation position in the pipeline, the suitable position for the vertical loading, but it can't flip. Need adjustment in the flow, use to control the worm gear box. , opening and closing times more 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. Compression, check the connection parts requirements, namely the packing sealing, guaranteeing stem flexible rotation. , metal seal valve products are not suitable for installation in the end of the pipe, such as must be installed on the end of the line, take equipped with outlet flange, prevent the backlog of sealing ring, too. , stem installation using regular check valve using effect, find fault in a timely manner to eliminate.