Piston valve DN series

pneumaticweldwaterproof

It is suitable for opening and closing of gas and slag in dry ash system of power plant, as well as for opening and closing of abrasive, corrosive, powder and flue gas in mines, steel, papermaking and petrochemical industries. Key Points of Installation and Use 1. Read this instruction carefully before installation, and check valve type, size and technical parameters. 2. It is strictly forbidden to Weld flanges after installing valves. The valve installation distance reserved from the pipeline shall be appropriate, and gaskets shall be added on both sides of the flange. 3. The center of the two pipelines and the center of the valve diameter should be coaxial, the flange surface should be flat, and the flange surface should not be allowed to have larger bias, so as to ensure the clamping and normal operation of the valve. Tightening bolts should be uniform and symmetrical. Product characteristics 1) There is no obstruction in the full flow of the inlet and outlet. 2) Good wear resistance and long service life. 3) In view of the special working conditions of stone coal transportation, the valve seat is designed to be inclined. Stone coal can not be accumulated to facilitate the closure of the valve; the lower valve plate is designed to be strip, so as to facilitate the complete opening of the valve. 4) Compact structure and convenient installation. 5) Sealing packing self-adjusting device.