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Installation Precautions For Hard Seal Butterfly Valves
Dec 02, 2016

Hard seal butterfly valve is also called flap valve, cut off from the pipeline and the main role of throttling, is a simple structure of the control valve, but also can be used for low-pressure pipe media switching control. Mainly used in the furnace, gas, steam, natural gas, city gas, hot and cold air, chemical smelting engineering and power generation environmental protection system to transport a variety of corrosive, non-corrosive fluid medium pipe.

In the installation of the use of hard seal butterfly valve, the following points are worth noting:

First, the hard seal butterfly valve in the handling process are not allowed to smash hit, so as not to damage the sealing surface;

Second, the valve allows any position, angle and open-air installation;

Third, do not use, should be placed in a cool dry place, the valve plate is open 5 ° ~ 10 ° state, both ends of the block and be covered;

Fourth, after the installation of the valve opening and closing frequency according to the user to develop maintenance cycle, according to the provisions of the cycle, on time to add the implementation of lubricating grease;

Fifth, the valve in the case of opening and closing disorders, should identify the reasons for the exclusion, shall not use the knocking method to force open and close;

Sixth, the valve installed in the pipeline to ensure that when the valve seat and pipe coaxial, and flange flange and the valve body between the folder into the appropriate gasket;

Seventh, the valve shall not be installed in the pipeline corner or the end of the pipeline, in the middle of the pipeline installation of the valve, the valve at both ends of the pipeline must be fixed,Eighth, fasten the flange bolts to be symmetrical alternate fastening, must not be individually fastened.





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