A butterfly valve test and adjustment 1. Whether the butterfly valve manual, pneumatic, hydraulic, electric parts are strictly debug before leaving the factory, the user re-sealant, the import and export should be evenly fixed on both sides, close the valve disc , Exert pressure on the inlet side and observe whether there is leakage on the outlet side. Before the pipe strength test, the plate should be opened to prevent damage to the seal pair. 2. Although the butterfly valve is rigorously inspected and tested before it leaves the factory, there are some problems that the screw displacement of individual products should be adjusted during transportation. To readjust the pneumatic and hydraulic actuators, please read the instruction manual of the drive unit. 3. Electric drive disc valve factory control mechanism has been Kai, closed stroke adjusted. To prevent the power is turned on the wrong direction, the user first turn on the power, the first open manually to the semi-open position, press the electric switch to check the direction of the disc and valve closing direction can be consistent. Second, the common butterfly valve failure and elimination of 1. Installation Road to confirm the performance of our products and the media flow arrow is consistent with the movement conditions, and plug the valve cavity clean, not allowed in the ring and butterfly plate There are foreign bodies, not clean before the butterfly must not be closed, so as not to damage the seal. 2. Flange plate installation Flanged valve flange recommended, that is HGJ54-91 socket welded steel flange. 3. Installed in the pipeline position, the best position for the vertical installation, but not flip. 4. Need to regulate the use of traffic, a worm gear box control. Open and close more disc valve, in about two months, open the worm gear box cover, check the butter is normal, should maintain the right amount of butter. 6. Check the connection parts require compression, that is, to ensure that the packing seal, but also to ensure flexible stem rotation. 7. Metal sealing butterfly valve products are not suitable for installation at the end of the pipeline, such as must be installed at the end of the pipeline, the need to take to install the outlet flange to prevent the backlog seals, over. 8. The valve stem installment uses the reaction to check the valve regular use effect, discovers the breakdown promptly eliminates.
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