Double flange butterfly valve (TH-BTV-DF)
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 Liner / Bonded Liner
NBR/EPDM/VITON |
| 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 |
| SEAT / LINING |
NBR/EPDM/VITON |
| TAPER PINS |
SS416/SS316 |
| BUSHING |
BRASS/PTFE |
| O-RING |
NBR/EPDM/VITON |
| 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
