Double Flanged Butterfly Valve is a type of valve that is used in industrial applications. They are designed to be used in applications where there is a need for high pressure and high flow rates. They are also commonly used in water and waste treatment systems.
The main benefit of using industrial Double Flanged Butterfly Valves is that they are much more durable than traditional butterfly valves. They are also much easier to install than traditional butterfly valves. They are also much easier to service than traditional butterfly valves. The main disadvantage of industrial Double Flanged Butterfly Valves is that they are more expensive than traditional butterfly valves. They also have a shorter lifespan than traditional butterfly valves.
Technical Features
| Working Pressure | : | PN10 / PN16 |
| Dimensions | : | DN400 to DN1800 in PN10. DN400 to DN1200 in PN16 |
| Working Temperature | : | -10°C to 120°C for EPDM -10°C to 85°C for NBR. |
| Connection | : | Double Flange |
| Coating | : | Electrostatic Epoxy Resin, Average Thickness 250 µm, RAL 5010 |
| Seat | : | Soft Back and replaceable |
| Disc-Axis Connection | : | Without PIN |
| Optional WRAS Certified | ||
| Other Materials and Specifications on Request | ||
Design Standards
| Design | : | EN 593 (Optional: API 609) |
| Flanges | : | EN 1092-2 (Optional: ASME B16.1 / B16.5 / B16.47) |
| Distance between Sides | : | EN 558 Series 20. (Optional: ISO5752-20 / ASME B16.10) |
| Top Flange | : | ISO 5211 |
| Trials and Tests | : | BS EN 12266-1. (Optional: ISO 5208) |
| Coating | : | ISO 12944 |
Components, Materials and Specifications
| COMPONENT | MATERIAL | MATERIAL |
|---|---|---|
| Body | Ductile Iron | ASTM A536 65-40-18 ASTM A536 65-45-12 (GGG40) |
| Disc | Stainless Steel | ASTM A351 CF8 (AISI 304) |
| Stainless Steel | ASTM A351 CF8M (AISI 316) |
|
| Ductile iron | ASTM A536 60-40-18 ASTM A536 65-45-12 (GGG40) |
|
| Aluminum Bronze | C954 / C958 | |
| Seat | EPDM / NBR / VITON | Commercial |
| Shaft | Stainless Steel | AISI 420 |
| Seal | NBR | Commercial |
| Bearing | PTFE | Commercial |
| Nuts and Bolts | Carbon Steel | ASTM A570 Gr 45 |
Application
- Wastewater
- Seawater/marine applications
- Bulk Storage
- Bulk Conversion Other
- Compressors
- Cooling Water, Circulating Water
- Cruise Ship
- Facilities & Process Utilities
- Blowers
- Fire Protection
- Corrosive Services
- Food processing, Chemical, Pharmaceutical
