1, electric flange butterfly valve to confirm the factory before the product performance and media flow arrows are consistent with the movement conditions, and the valve cavity inserted into the clean, not allowed in the seals and butterfly plate with impurity foreign body, not Do not allow the closure of the butterfly plate before cleaning, so as not to damage the seal.
2, electric flange butterfly valve plate supporting the installation of flanges recommended disc valve dedicated flange, that is, HGJ54-91 type welded steel flange.
3, electric flange butterfly valve installed in the pipeline position, the best position for the standing equipment, but can not flip.
4, electric flange butterfly valve need to adjust the flow, there are worm gear box to control.
5, open, closed more times the disc valve, in about two months time, open the worm gear cover, check the butter is normal, should keep the amount of butter.
6, check the connection parts required to tighten, that is to ensure that the packing of the seal, but also to ensure flexibility and flexible stem.
7, metal seal butterfly valve product is not suitable for installation at the end of the pipeline, such as must be installed at the end of the pipeline, need to take the export flange, to prevent the backlog of seals, over position.
8, stem installation using the reaction regularly check the valve use effect, found that the failure to rule out