Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems, DN50 to D1200, NBR/EPDM/VITON, Certificates & Approvals: DNV-GL, Lloyds, DNV, ABS, BV, Standards: EN 593, API609
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Wafer type butterfly valve (TH-BTV-AW)
Area of application
Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems
Technical Parameters /Properties of Wafer type Butterfly valve
Type: | Multi-Flange Wafer |
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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 Liner / Bonded Liner NBR/EPDM/VITON, PTFE/PFA lining |
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 |
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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 |
Seat / lining | NBR /EPDM /VITON /PTFE /PFA |
Taper pins | SS416/SS316 |
Bushing | BRASS/PTFE |
O-ring | NBR/EPDM/VITON |
Key | STEEL |
Actuation
- Hand lever
- Worm-gear/hand-wheel
- Electric-actuator
- Pneumatic-actuator
- Hydraulic-actuator
Wafer type 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