Lug Type Butterfly Valve
Lug type butterfly valve
Area of application
Marine industry, Water supply and drainage, fire fighting, shipbuilding, water treatment and other systems
Properties of Lug type Butterfly valve
| Type: | Lugged & Tapped |
|---|---|
| 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, PN25 |
| 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 |
|---|---|
| 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) Alu-Bronze |
| 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
Lug 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
- Lug type butterfly valve with concentric design
- Using backless structure, Rubber fusion bonded on valve body
- Replaceable, resilient seat
- Streamlined disc, one-piece stem
Factory View
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