Product Description

Triple Offset Butt Welded Butterfly Valve RT for BW end

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: 5A
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





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

Wafer Pattern 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


1 Set

Valve Certificate


Place of Origin

Zhejiang, China (Mainland)

Delivery Detail:

Shipped in 15-30 days after payment


Shanghai Or Ningbo

Payment Terms

L/C,D/A,D/P,T/T, Western Union

Application & Function:
The Didtek Double Offset Wafer 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.

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.