Double eccentric butterfly valve (TH-BTV-DE)Area of applicationMarine industry, Water supply & drainage, fire fighting, shipbuilding, water treatment and other systemsData sheet of Double eccentric Butterfly valveTYPE:Double eccentricSIZE & CONNECTIONS:DN1400 to D3800MEDIUM:Air, Inert Gas, Oil, Seawater, Waste water, WaterMATERIALS:Cast Iron / Ductile Iron/ Carbon Steel / StainlessSteel / Alu BronzePRESSURE RATING:PN10, PN16TEMPERATURE:-30°C to 200°CSEAT/LINING:Replaceable / Bonded /vulcanized LinerNBR/EPDM/VITON, full lined PTFE/PFACERTIFICATES & APPROVALS:DNV-GL, Lloyds, DNV, ABS, BV Type Approval3.1 & 3.2 Cert (on request)StandardsDesign and Manufacture Conform to EN 593ã API609Flange dimensions Conform to EN2632Face to Face dimensions Conform to DIN3202 F4Topworkâs dimensions Conform to ISO5211Testing Conform to ISO5208Material of PartsPART NAMEMaterialBODYASTM 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-BronzeDISC / PLATEDI+NI,CF8/CF8M,C954/C958EN-JS 1030 (GGG-40)Stainless steel (1.4408)SHAFT / STEMSS431/SS420/SS410/SS304/SS316SEAT / LININGNBR/EPDM/VITON /PTFE/PFATAPER PINSSS416/SS316BUSHINGBRASS/PTFEO-RINGNBR/EPDM/VITON /PTFEKEYSTEELActuationWorm-gear/hand-wheelElectric-actuatorPneumatic-actuatorHydraulic-actuatorDouble eccentric butterfly valve featuresDouble 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 conditionsReplace the valve plate seal ring, butterfly plate, rotating shaft and other materials, applicable to multiple media and different temperatures
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