Large Size Double Flange Worm Butterfly Valve
- THT
- Tianjin，China
- 5weeks
- 200/month
Large Size Double Flange Butterfly Valve are our main products
The double eccentric butterfly valve is more resistant to high pressure, has a longer life and good stability. Compared with other valves, the larger the diameter, the lighter the material, and the lower the cost
The eccentric butterfly valve structure is adopted to reduce the friction of the sealing ring and prolong the service life of the valv
Large Size Butterfly Valve use ductile iron material saves material and is lighter than cast steel
Large Size Double Flange Worm Butterfly Valve
The double eccentric butterfly valve is mainly used for drainage of water plants, power plants, steel mills smelting, chemical industry, water source engineering, environmental facility construction, etc., especially suitable for water pipelines, as regulating and intercepting equipment. Compared with the centerline butterfly valve, the double eccentric butterfly valve is more resistant to high pressure, has a longer life and good stability .
the big size butterfly valve structural feature is that the axis of the valve stem deviates from the center of the butterfly disc and the center of the body. The double eccentric effect enables the butterfly disc to be released from the valve seat immediately after the valve is opened, which greatly eliminates unnecessary excessive extrusion and scratching of the butterfly disc and the valve seat, reduces the opening resistance, reduces wear and improves The life of the valve seat is improved
1. Design&manufature standard:BS EN593/MSS SP67/API609/BS5155
2. Face to face dimension:ISO5272/EN558/MSS SP67/API609
3. End connection:ANSI B16.1/ANSI B16.5/DIN2501/EN1092
4. Inspection&testing:API598/ ISO5208
| Size | DN1800 |
| Pressure | PN1.0 |
| End connection | Flange |
| Actuator | Worm gear |
| Structure | Double eccentric |
| Body | Ductile |
| disc | Ductile |
| seat | EPDM |
| stem | 2Cr13 |
| bolts&nuts | Stainless steel A2-70 |
Suitable material:
| Part name | Material |
| Body | Ductile iron/stainless steel/duplex steel/WCB |
| Disc | Ductile iron/stainless steel/duplex steel/WCB |
| Seat | EPDM/Metal |
| Stem | 2Cr13/SS304/SS316 |
| Nominal diameter DN(mm) | 100-2600 | 100-1200 | 600-3000 | |
| Nominal pressure PN(Mpa) | 1.0 | 1.6 | 0.6 | |
Testing pressure | shell | 1.5 | 2.4 | 0.9 |
| test | 1.1 | 1.76 | 0.66 | |
| Temperature℃ | -10-+80 | |||
| Structure | Midline，double eccentric，triple eccentric | |||
| Operator | Manal/electric/pneumatic | |||
| Medium | water,sewage,sea water,air,steam,oil,etc | |||
