Area of application
Marine industry, Water supply & drainage, fire fighting, shipbuilding, water treatment and other systems
Data sheet of Double flange Butterfly valve
| TYPE: | Double flanged |
|---|---|
| SIZE & CONNECTIONS: | DN50 to D1200 |
| 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, PTFE/PFA full lined |
| 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 EN 1092-2 PN10 Face to Face dimensions Conform to EN558 series Topwork’s dimensions Conform to ISO5211 Testing Conform to API598、EN12266-1 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 flange butterfly valve features Simple structure and easy operation Easy installation and good sealing Long service life and high reliability Good interchangeability of parts and cost saving Wafer type butterfly valve with concentric design Using backless structure, Rubber fusion bonded on valve body Replaceable, resilient seat Streamlined disc, one-piece stem Approved and registered by VdS, DVGW Related types of butterfly valves: We have other types of butterfly valves: wafer butterfly vlave, Lug type butterfly valve, U flange butterfly valve, fluorine lined PTFE butterfly valve, double eccentric butterfly valve and triple eccentric butterfly valves used in Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, with Nominal Diameter of DN50 to DN1200, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, BV, API, ABS, CCS. Standards: EN 593, API609, API6D
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