Description Worm butterfly valve has simple structure, excellent performance, widely used. The main shut-off valve for use, the product can be installed in the petroleum, chemical, food, pharmaceutical, textile, paper, water and electricity, shipbuilding, urban drainage, metallurgy, energy and other systems all corrosive, non-corrosive gases, liquids , semi-fluid, and the use of regulation and shut-off devices as solid powder pipelines and containers. Scope: Worm rubber lined butterfly D371J-16 is also widely used: chemical, petrochemical, metallurgy, medicine, food and other industries in SO2, steam, air, gas, ammonia, CO2 gas, oil, water, salt, lye , pipeline water, nitric acid, hydrochloric acid, sulfuric acid, phosphoric acid and other media as a regulator and shutoff device. [Product Keywords: Worm butterfly valve, cast iron butterfly valve, wafer butterfly valve Product Model: D371J-10/16 Diameter: DN40-1000 Nominal pressure: PN1.0 / 1.6mp Temperature: -45 ---- 130 ° C Suitable medium: water, weak alkaline media Body material: cast iron, ductile iron, carbon steel, stainless steel and other connection: Wafer [service]: 1, butterfly warranty period from the date of the factory for 24 months, "Three Guarantees" service 2, when 400-188-2335, service personnel will be in the province for 24 hours outside the province within 48 hours of our butterfly problem in your use of the process, please feel free to call the service hotline, scene. Features [Features]: 1, novel design, reasonable, unique structure, light weight, open and close quickly. 2, the operation torque is small, easy to operate, saving smart. 3, can be mounted in any position, and easy maintenance. 4, the seal can be replaced, reliable sealing performance to achieve two-way seal zero leakage. 5, the sealing material aging, corrosion resistance, long life and other characteristics. 6, to be completely sealed, gas leakage test is zero. 7, select different materials, applicable for various media. [Advantages]: 1, design and development (professional engineer) → selection → smelting → Shot → full inspection → metal processing → spraying → assembly → test pressure → washing → Packaging → export → service 2,100% leak-free: Each Butterfly interviews have been both positive and negative pressure, test pressure is 2.0Mpa, the national standard 1.76Mpa, each valve 4 + 1 O-ring seals, five seal Cengcengbaguan. 3. Body: Body as a solid body, from the weight compared with ordinary butterfly is 1.5 times the normal butterfly valve, the valve factory with more than 150 species of mold, and with American Standard, the German standard, Japanese standard and other valves molds for domestic and foreign customers to choose 4, the disc: the disc is milled nickel disc, solid, wear-resistant, can not crack under pressure to reach 30 Kg. 5. Stem: made of cold drawn steel, galvanized surface, smooth rust, reduce Friction force between the stem and the seal, reduce torque 6, range, giving customers a number of options: according to customer requirements customized various body, disc: ductile iron, steel, stainless steel 304; stainless steel 304,316,316L valve shaft; EPDM, NBR, PTFE, fluorine rubber, silicone rubber, chloroprene butadiene rubber and other materials pouches