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Applicable Standards:
Butterfly valve design according to API609, ASME B16.34
Face to face ASME B16.10/API609
End Flanges ASME B16.5/ASME B16.47
Butt Welding ends ASME B16.25
Inspection and test API 598
Material: WCB
Size Range: 2"~60"
Pressure Rating: ASME CL, 150, 300, 600
Temperature Range: -29°C~425°C
Design Description:
- Low friction between seat and disc of valve
- “Zero Leakage” Sealing Design
- Standard Laminated Resilient Disc Seal to 800°F (427°C)
- One Piece Shaft
- Low torque enables the compact actuator and a long cycle life
- Blow-out proof shaft
- Optional stem extension
- Optional locking device
| Brand | DIDTEK |
| Structure | Butterfly |
| Valve Material | Didtek provide cast steel, stainless steel, special alloy, CI, DI etc |
| Valve Type | Didtek Produce Butterfly Valve |
| Valve Test | 100% quantity tested before delivery |
| Valve Guarantee | 18 months after shipments and 12 months after installed |
| Valve Structure | Top Entry Butterfly Valve |
| Valve Delivery | 15 - 30 days |
| Valve Sample | Sample Available by Didtek Valve |
| Valve Color | Customer request |
| Valve Packing | Plywood Case for Butterfly Valve |
| MOQ | 1 Set |
| Valve Certificate | API6D/CE/ISO9001/ISO14001 |
| Place of Origin | Zhejiang, China (Mainland) |
| Delivery Detail: | Shipped in 15-30 days after payment |
| Port | Shanghai Or Ningbo |
| Payment Terms | L/C,D/A,D/P,T/T, Western Union |
Application & Function:
Didtek Triple Offset Top Entry Butterfly valve is used to prevent galling and scratches between the metal seat and the metal disc due to its unique design. The only time where the seal comes into contact with the seat is at the point of complete closure. Triple offset valves are generally used in applications which require bi-directional tight shut-off in oil and gas, LNG/NPG terminal and tanks, chemical factories, and shipbuilding. They are also used for dirty/heavy oil to prevent extrusion.
Maintenance:
The maintenance of the valve could be realized by opening the bonnet and operating it in the line directly, therefore, achieving easy maintenance as well as time-saving.
Accessories:
Accessories such as gear operators, actuators, locking devices, chain wheels, extended stems and bonnets for cryogenic service and many others are available to meet the customer’s requirements.
