Double Eccentric Butterfly Valve

Double eccentric butterfly valve (TH-BTV-DE) Area of application Marine industry, Water supply & drainage, fire fighting, shipbuilding, water treatment and other systems Data sheet of Double eccentric Butterfly valve TYPE: Double eccentric SIZE & CONNECTIONS: DN1400 to D3800 MEDIUM: Air, Inert Gas, Oil, Seawater, Waste water, Water MATERIALS: Cast Iron / Ductile Iron/ Carbon Steel / Stainless Steel / Alu Bronze PRESSURE RATING: PN10, PN16 TEMPERATURE: -30°C to 200°C SEAT/LINING: Replaceable / Bonded /vulcanized Liner NBR/EPDM/VITON, full lined PTFE/PFA CERTIFICATES & APPROVALS: DNV-GL, Lloyds, DNV, ABS, BV Type Approval 3.1 & 3.2 Cert (on request) Standards Design and Manufacture Conform to EN 593、 API609 Flange dimensions Conform to EN2632 Face to Face dimensions Conform to DIN3202 F4 Topwork’s dimensions Conform to ISO5211 Testing Conform to ISO5208 Material of Parts PART NAME Material BODY ASTM A536 65-45-12/ASTM A126 B, EN-JL 1040 (GG-25), EN-JS 1030 (GGG-40), EN-JS 1049 (GGG 40.3), Stainless steel (1.4408), Alu-Bronze DISC / PLATE DI+NI,CF8/CF8M,C954/C958 EN-JS 1030 (GGG-40) Stainless steel (1.4408) SHAFT / STEM SS431/SS420/SS410/SS304/SS316 SEAT / LINING NBR/EPDM/VITON /PTFE/PFA TAPER PINS SS416/SS316 BUSHING BRASS/PTFE O-RING NBR/EPDM/VITON /PTFE KEY STEEL Actuation Worm-gear/hand-wheel Electric-actuator Pneumatic-actuator Hydraulic-actuator Double eccentric butterfly valve features Double eccentric butterfly valve is also called high-performance butterfly valve, which is mainly used for water drainage in water plants, power plants, steel smelting, chemical industry, water source engineering, environmental facilities construction, etc. It is especially suitable for waterway pipelines as regulating and shut-off equipment. Compared with the center-line butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, longer life and better stability. Reasonable design, compact structure, easy assembly and disassembly, and easy maintenance. The eccentric structure is adopted to reduce the friction of the sealing ring and prolong the service life of the valve. Completely sealed with zero leakage. Can be used in ultra-high vacuum conditions Replace the valve plate seal ring, butterfly plate, rotating shaft and other materials, applicable to multiple media and different temperatures