Testing and adjustment 1, the product whether it is manual, pneumatic, hydraulic, electric various parts in the factory are subject to stringent testing, sealing performance when the user re-examination should be fixed and export sides evenly butterfly, butterfly valve closed, right inlet side pressure on the outlet side to observe whether the leakage phenomenon, in the pipeline before the strength test BD343H butterfly manufacturers, should open the disc plate to prevent damage to the seal pair. 2, despite the strict inspection and test valve model, but there are also individual products in transit automatic screw displacement before the product shipped, the need to re-adjust, pneumatic, hydraulic, etc., please read the complete drive Manual 3, (electric butterfly ) has enabled organizations to control the factory closing stroke adjusted. In order to prevent the power is turned the wrong direction Shandong valve, the user after the first powered on, the first being opened manually to a half-open position, in accordance with the direction of the electric switch and indicator disc check valve can be closed in the same direction. Butterfly is a circular disc for opening and closing pieces and rotate with the stem to open, close and adjust a valve fluid channel. Butterfly butterfly plate installed on the pipe diameter direction. Cylindrical channel in the valve body, disc-shaped disc around the axis of rotation, rotation angle between 0 ° ~ 90 °, rotated to 90 °, the valve is fully open state. Valve Co., Ltd. Shandong China Everbright production of such types of valves wide range of applications, reliable quality, no internal leakage, leakage phenomenon, frequent switching is not stuck, rust, the majority of chemical plants, thermal power plants, steel mills, printing and dyeing, the best choice of food plants. BD343H butterfly valve manufacturers _ _ valve manufacturer Everbright Everbright Limited provided by Shandong valve. Valve Co., Ltd. Shandong China Everbright (www.sdgdfm.com) strong, credible, Shandong Weifang ball industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Everbright valve into the brilliant and you work for a better future!