Double Offset Butterfly Valve
The Double Offset High-Performance Butterfly Valve represents an advanced valve design, integrating the best structural features from multiple butterfly valve technologies. Its disc features a spherical arc sealing surface that achieves true dynamic sealing through system pressure alone, delivering superior sealing integrity and extended service life in demanding applications.
Double Offset Butterfly Valve Product List
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API 609 Double Offset Butterfly Valves, CF8M, 28 Inch, CL150
These double offset butterfly valves feature a 700 mm (28 inch / DN700) stainless steel body made from ASTM A351 CF8M, an austenitic grade with added molybdenum for improved corrosion resistance in chemical and marine environments. The double offset disc geometry reduces seat wear and operating torque...
Double Offset Butterfly Valve
Titanium Alloy Butterfly Valve, TA12, API 609, 10 IN, 300 LB
Titanium Alloy Butterfly Valve Supplier offers a 10-inch (250 mm) double offset butterfly valve engineered for severe corrosion duty. The body and disc are machined from Titanium Grade 12 (TA12), a material that resists pitting, crevice corrosion, and chloride attack far better than stainless steels....
Double Offset Butterfly Valve
ASTM A890 5A Butterfly Valves, DSS, API 609, 12 Inch, 300 LB
ASTM A890 5A Butterfly Valve is a high-performance double-offset disc valve engineered for severe service conditions. This valve has a 300 mm (12 inch) nominal diameter with a Class 300 LB pressure rating. The body is cast from ASTM A890 Grade 5A duplex stainless steel. The valve meets API 609 Category...
Double Offset Butterfly Valve
Aluminum Bronze Butterfly Valve, API 609, B148 C95800, 10 IN
This double offset butterfly valve is built for demanding industrial flow control applications. It features an ASTM B148 C95800 aluminum bronze body, offering excellent corrosion resistance in seawater, brine, and abrasive media. The valve is sized at 10 inches (250 mm) with a Class 150 LB pressure...
Double Offset Butterfly Valve
ASTM A351 CF8M Butterfly Valves, API 609, 2 Inch, CL150, Lug
The ASTM A351 CF8M Butterfly Valves Supplier offers a robust double offset butterfly valve designed to meet API 609 standards. This valve features a cast stainless steel body, ensuring corrosion resistance and durability. It is available in a 2-inch size with a Class 150 LB rating, and is compatible...
Double Offset Butterfly Valve
ASTM A216 WCB Butterfly Valve, 8 Inches, Double Offset, Lug
The China ASTM A216 WCB Butterfly Valve Plant offers a high-quality 200 mm butterfly valve featuring a double offset design. Its cast carbon steel body ensures durability and strength, making it suitable for various industrial applications. The valve is available in an 8-inch size with a Class 150 LB...
Double Offset Butterfly Valve
API 609 Double Offset Butterfly Valve, CF8M, 2 Inch, 150 LB
The China API 609 Butterfly Valve Supplier offers high-quality 50 mm (2-inch) butterfly valves with a double offset design, ensuring smooth and reliable operation. These valves are constructed from stainless steel ASTM A351 CF8M, providing excellent durability and corrosion resistance. Rated for Class...
Double Offset Butterfly Valve
ASTM A351 CF8M Lug Butterfly Valve, 2 Inch, CL150 LB, Lever
The China ASTM A351 CF8M Butterfly Valve Factory offers a high-performance butterfly valve with a 50 mm (2-inch, DN50) diameter. This double offset valve features a stainless steel body, ensuring durability and corrosion resistance. It is rated for Class 150 LB (PN20) pressure and comes with lug ends...
Double Offset Butterfly Valve
Double Offset Lug Butterfly Valves, A216 WCB, 20 Inch, CL150
The Double Offset Lug Butterfly Valves Factory produces high-quality 500 mm butterfly valves, adhering to API 609 standards. These valves feature a carbon steel ASTM A216 WCB body, designed for durability and reliability. With a 20-inch diameter and rated for Class 150 LB pressure, they conform to DN500...
Double Offset Butterfly Valve
Carbon Steel Lug Butterfly Valves, A216 WCB, 20 IN, CL150 LB
The Carbon Steel Lug Butterfly Valves Plant offers a robust 500 mm butterfly valve, featuring a double offset design for enhanced sealing and reduced wear. Constructed with an ASTM A216 WCB body, this 20-inch valve is rated for Class 150 LB pressure and conforms to DN500 and PN20 standards. Equipped...
Double Offset Butterfly Valve
ASTM A351 CF8 Butterfly Valve, 8 Inch, Double Offset, Wafer
The ASTM A351 CF8 Butterfly Valve Supplier offers a high-quality stainless steel butterfly valve, featuring a double offset design for optimal sealing and reduced wear. This 8-inch valve, with a DN200 size and a 200 mm diameter, is rated at Class 150 LB and PN20, ensuring robust performance under moderate...
Double Offset Butterfly Valve
API 609 Lug Butterfly Valves, ASTM A351 CF8M, 8 IN, CL150 LB
The API 609 Lug Butterfly Valves Factory produces high-performance double offset butterfly valves designed for precision and reliability. These valves are crafted from ASTM A351 CF8M stainless steel, ensuring durability and corrosion resistance. With an 8-inch (DN200, 200 mm) size and a class 150 LB...
Double Offset Butterfly Valve
Lug Type Butterfly Valve, API 609, A351 CF8M, 12 Inch, CL150
The China Lug Type Butterfly Valve Plant offers a high-quality 300 mm butterfly valve featuring a double offset design for enhanced sealing and reduced wear. Manufactured to API 609 standards and made from ASTM A351 CF8M stainless steel, this 12-inch valve is designed for durability and corrosion resistance....
Double Offset Butterfly Valve
Stainless Steel Butterfly Valves, A351 CF8M, 8 Inches, CL150
The Stainless Steel Butterfly Valves Supplier offers a high-performance 200 mm double offset butterfly valve, compliant with API 609 standards and made from ASTM A351 CF8M stainless steel. This 8-inch (DN200) valve is designed for Class 150 LB and PN20 pressure ratings, featuring lug ends for secure...
Double Offset Butterfly Valve
Stainless Steel CF8M Butterfly Valve, API 609, 12 IN, CL150
The Cast Stainless Steel Butterfly Valves Factory specializes in producing high-quality double offset butterfly valves that adhere to API 609 standards. These valves feature a robust ASTM A351 CF8M stainless steel body, ensuring exceptional durability and corrosion resistance. Available in a 12-inch...
Double Offset Butterfly Valve
Double Offset Lug Butterfly Valve, API 609, A351 CF8M, 14 IN
The Double Offset Lug Butterfly Valve Plant offers high-quality 350 mm butterfly valves, designed to meet API 609 standards. These valves feature a stainless steel body made from ASTM A351 CF8M material, ensuring durability and corrosion resistance. With a size of 14 inches and a rating of Class 150...
Double Offset Butterfly Valve
Double Offset Butterfly Valve
The Double Offset High-Performance Butterfly Valve is a new type of butterfly valve designed by absorbing the advantages of several different structural butterfly valves. The sealing surface of the valve plate is a spherical arc surface. The sealing mechanism achieves a true dynamic seal through system pressure, thus providing reliable sealing performance and durability. It features a small volume, light weight, wide manufacturing range, and is easy to maintain and repair. Due to its double offset butterfly plate design and single-piece flexible lip-shaped sealing seat, it is ideal for applications requiring reliable sealing and good regulating characteristics. It can be used for quick shut-off or regulating flow.
Double Offset Frictionless Design
- 1st offset: Shaft is positioned downstream from the centerline of the seat.
- 2nd offset: Shaft is off center from the vertical axis of the seat.
- ISO 5211 Top Flange
- In addition to standard, durable V-ring packing, you can also choose from optional graphite
- high temperature packing or emissions control packing.
- Bi-Directional, Shut off performance
- Seat Options: Rubber, PTFE, RPTFE, or Fire Safe PTFE
- The double offset operating principle minimizes seat wear and lowers operating torque to
- improve durability.
- Positive sealing is mechanically achieved and does not rely on line pressure assistance.
Seat Structure
Double Offset PTFE Seat Butterfly Valve
- A surplus of material between the PTFE Seat and Disc ensures a reliable seal in a low pressure environment.
- In high pressure situations, the force of the medium pushes against the seat contacting the sealing surface for a stronger seal.
- The disc surface has a conical design to reduce frictional force. The valve seat can also be replaced or repaired easily.
Double Offset Fire Safe PTFE Butterfly Valve
- Fire Safe valve seat with dual seal includes a primary PTFE seat insert and metal seat.
- In the event that the PTFE insert is destroyed, the secondary metal seat provides an effective shut-off.
Shaft Retention
- Externally retained, double blowout proof stem design as API 609
- External: Shaft is designed with an integral collar and gland follower to prevent blowouts.
Zero Leakage
- Disc-Seat sealing is achieved by evenly loading torque force onto the disc's laminated seal
ISO 5211 Top Mounting
Different End Connections Available:
