Butterfly pneumatic valve testing and troubleshooting 3)

in the first place, testing and adjusting the butterfly
pneumatic valve products, whether it is manual, pneumatic, hydraulic, electrical components are through strict test before they go out, when the user to check the sealing performance should be fixed on either side of the import and export of uniform and closed pressure pneumatic valve inlet side of the butterfly facilities, both in the export side leakage observed phenomena, in front of the pipeline strength experiment, should open the disc plate, to prevent the damage of seal.
and pneumatic valve product before delivery, despite the strict inspection and testing, but also have individual transportation products, automatic screw deformation should be readjusted, pneumatic, hydraulic, etc. , please read the complete manual drive.
, electrical transmission control pneumatic valve control mechanism has the factory to open, close the stroke adjustment. Users to prevent electrical fault on the driveway, first start, first of all, open the manual to half open position, in the inspection of electronic switch and the direction of the pneumatic valve disc can be closed in the same direction.
2, butterfly and common troubleshooting
and confirm before installation, the performance of our products and channels, the media flow arrow is consistent with the state and movement, pneumatic valve core cavity clean, are not allowed to be in the ring and the butterfly panel with foreign impurities, had to allow the CD before cleaning, to avoid damaging the seals. , supporting flange disc, it is recommended that the installation special flange butterfly pneumatic valve, HGJ - namely Type socket welding steel flange. In the pipeline in place, the legislature equipment installation best position, but cannot reverse it. , need to adjust flow in use, a worm gear box control. Times the opening and closing ceremonies, pneumatic valve disc, two months or so, worm gear cover open, check the butter is normal, should keep the right amount of butter. , inspection of stamping parts, namely the connection request, to ensure that the packing of the bees, and make sure that the flexible pneumatic valve rod rotation. , metal sealing butterfly pneumatic valve cannot be in the final product pipeline installation suitable, also must be installed in the pipe, and export flange equipment, so that to prevent the backlog of ring, it is too much. , pneumatic valve rod pneumatic valve installation shall periodically test results, find fault and ruled out. , the possibility of failure in detail below, in a timely manner to eliminate:
eliminate malfunctions may reveal the seal face, disc, seal face with fragments of folders, CD, closed position is consistent with the sealing surface is not correct, the configuration is setup to outlet flange bolt stress is not the rules or failing to map, to figure, fault direction stress test requirements, in order to eliminate impurities and clean the pneumatic valve cavity, adjust the adjusting screw worm gear or electric actuator, pneumatic valve closed position, in order to obtain correct, check surface with flange and bolt clamping countries, should be uniform compression, according to the prompt surface leakage current through the pneumatic valve, pressure seal direction on both sides of the gasket is broken, flange tight or uneven compression force, a sealing gasket seal failure, replace the sealing gasket, compressed flange bolts ( Even by force) , remove the pressure ring pneumatic valve, replace the seal, gasket failure

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