Electric stainless steel flange butterfly valve D943W-16P Model 
 The strong German electric valve stainless steel flange butterfly valve with precision J-shaped elastic sealing ring and three eccentric and multi-level metal seal structure, is widely used for medium temperature ≤ 425 ° C metallurgy, electric power, petrochemical, as well as drainage and municipal construction and other industrial pipe for regulating the flow and carrier drying. Three-eccentric structure of the valve, the valve seat and disc sealing surface hardness and made of stainless steel with good corrosion resistance and long service life of the valve has a bi-directional sealing function, the product line with the national GB/T13927-92 valve pressure test standard. 
 Feature 
 1, this valve, triple eccentric sealing structure, seat and disc are almost no wear, the more the concept of more tight sealing function. 
 2, the ring made of stainless steel production, with the dual advantages of the metal seal and elastomeric seals, both in the case of low and high temperatures, with excellent sealing performance, corrosion resistant, long life characteristics. 
 3, disc sealing surface surfacing cobalt based cemented carbide, sealing surface wear resistance, long service life. 
 4, large-format disc using a truss structure, high strength, flow area, flow resistance is small. 
 5, the valve is bi-directional sealing function, the limitations of the medium flows from the installation, are not subject to the impact of spatial location can be installed in any direction. 
 6, the drive can station (rotated 90 ° or 180 °) to install, user-friendly. 
 The main technical parameters 

 Nominal pass through the DN (mm) 
 50 ~ 2000 
 Nominal pharmacological PN (MPa) 
 0.6 
 1.0 
 1.6 
 2.5 
 Sealing test (MPa) 
 0.66 
 1.1 
 1.76 
 2.75 
 Strength test (MPa) 
 0.9 
 1.5 
 2.4 
 3.75 
 Suitable temperature 
 Carbon steel: -29 ℃ ~ 425 ℃ Stainless Steel: -40 ℃ ~ 650 ℃ 
 Suitable medium 
 Water, air, natural gas, oil and weak corrosive fluid 
 Leakage rate 
 Accordance with GB/T13927-92 standard 
 Driven approach 
 Worm gear, electric, pneumatic, hydraulic 
 The main components of materials