Note the use of signal butterfly valve: 1, the signal butterfly valve can be installed in any space on the pipeline. 2, the installation location of the butterfly valve should ensure the use, maintenance and replacement of convenience. 3, the installation of the butterfly valve can not consider the direction of medium flow, which allows two-way flow. 4, butterfly valve installed before installation should be stored in a dry place, the valve plate slightly open 4 ° ~ 5 °. 5, the butterfly valve installation should be carried out before the following: 1) Check carefully whether the use of the performance specifications of the butterfly valve is consistent. 2) Cleaning cavity and sealing surface, do not allow dirt adhesion, do not open or close the disc before cleaning. 3) Check if the transmission is connected with the flange on the butterfly valve. 6, the butterfly valve clamping in the pipe, pay attention to whether the connection force is uniform *. 7, the butterfly valve installed, the pipeline pressure test, the valve plate must be in the open position. 8, the butterfly valve installed, it should be regularly checked, the inspection of the main items are as follows: 1) butterfly valve seat and O-ring damage. 2) sealing performance of the valve plate sealing surface. 3) butterfly valve repair assembly, opening and closing rotation may not have jamming phenomenon. 4) butterfly valve repair assembly, the sealing performance test should be required. 5) After each inspection, the details of the situation should be recorded for future reference.
5-Fluoro-2-Nitrophenol,Amino-4-Fluorophenol,Fluoro-2-Nitrophenol
Fluorinated Fluorobenzoic Acid Co., Ltd. , http://www.nsfluorinated.com