Butterfly Valve
Home >> Products >> Butterfly Valve >> Triple Offset Butterfly Valve
Built for demanding isolation applications, the Triple Offset Butterfly Valve is designed to provide reliable tight shut-off, low operating torque, and long-term performance under high-pressure and high-temperature conditions. Its unique triple-offset geometry eliminates rubbing between the disc and seat during operation, significantly reducing wear and friction while providing a cam-like sealing action at the final stage of closure. This design enables reliable metal-to-metal sealing for severe service applications.
The Triple Offset Butterfly Valve is well suited for applications in oil & gas, petrochemical, refinery, chemical processing, power generation, and high-temperature steam systems. Its robust metal-seated construction, fire-safe performance, and excellent resistance to thermal and mechanical stresses make it an ideal choice for critical isolation applications where conventional butterfly valves may not provide sufficient durability or temperature capability.
|
Product description: |
Triple offset butterfly valve |
|
Model: |
D343H-Triple offset butterfly valve |
|
Nominal diameter: |
NPS 2”～48” |
|
Operating temperature: |
-196℃～593℃ |
|
Nominal pressure: |
CLASS 150～2500 |
|
Material: |
Main material: A216 WCB、WCC; A217 WC6、WC9、C5、C12、C12A、CA15; A351 CF8、CF8M、CF3、CF3M、CF8C、CN3MN、CK3MCUN、CN7M; A352 LCB、LCC;A494 CW-6MC、CU5MCuC、M35-1；A890 4A(CD3MN)、5A(CE3MN)、6A(CD3MWCuN); ASME B 148 C95800、C95500 |
|
Design standard: |
API 609、ASME B16.34 |
|
Structural length: |
ASME B16.10 |
|
Connecting end: |
ASME B16.5、ASME B16.47、ASME B16.25 |
|
Test standard: |
API 598、ISO 5208 |
|
Operation method: |
Handle, worm, motor-drive unit, pneumatic drive unit |
|
Application fields: |
Used as control and cut-off equipment for smelting, chemical engineering, sewage engineering, environmental protection system and control subsystems of water plant, power plan and steel plant. |
Compact and cost-effective solution for reliable isolation and flow control in industrial piping systems.
Triple Offset Geometry
Three-dimensional offset design eliminates rubbing between the disc and seat, reducing wear and extending sealing surface life.
Metal-to-Metal Sealing
Robust metal sealing surfaces provide reliable shut-off and excellent resistance to high temperatures, pressure, and demanding process conditions.
Reliable Tight Shut-Off
The cam-like sealing action provides progressive and dependable sealing at the final stage of closure.
Low Operating Torque
Non-rubbing operation minimizes friction and helps reduce operating torque and actuator requirements.
High Temperature Capability
Suitable for high-temperature media such as steam, hot gas, and other severe process fluids where soft seats may be unsuitable.
Excellent Wear Resistance
Metal sealing components provide enhanced resistance to abrasion, erosion, and repeated operating cycles.
Fire Safe Design
Metal sealing construction provides enhanced resistance to fire and high-temperature exposure when designed and tested to applicable standards.
Long Service Life
Reduced friction, robust construction, and durable sealing surfaces help extend service life and reduce maintenance requirements.
Suitable for Frequent Cycling
The non-rubbing sealing mechanism supports reliable performance in applications requiring repeated opening and closing.
Wide Range of Applications
Suitable for oil & gas pipelines, refineries, petrochemical plants, chemical processing, power generation, steam systems, and other high-temperature and severe service applications.
Chemical Industry
Ball valves, butterfly valves, gate valves, globe valves, check valves, and control valves ensure safe fluid isolation, precise process control, and reliable operation in demanding chemical processing applications.
Oil Industry
Engineered for reliable isolation, flow regulation, and backflow prevention, our valve solutions support upstream, midstream, and downstream oil production and refining operations.
Natural Gas
Providing leak-tight sealing, dependable flow control, and safe pipeline operation for natural gas transmission, storage, LNG, and distribution systems.
Metallurgy
Built to withstand high temperatures, abrasive media, and harsh operating conditions in steelmaking, smelting, and metallurgical processing.
Power Generation
Ensuring reliable isolation, accurate flow control, and long-term performance in steam, boiler, turbine, and power plant systems.
Pharmaceutical
Delivering hygienic, precise, and contamination-free flow control for pharmaceutical manufacturing and clean process applications.
Steel Industry
Designed for high-temperature, high-pressure, and severe-service conditions in iron making, steelmaking, rolling mills, and auxiliary process systems.
New Energy
Supporting hydrogen, LNG, carbon capture, battery materials, and renewable energy projects with advanced valve solutions for safe and efficient process control.
-196°C Cryogenic Liquid Nitrogen Test System
Simulates ultra-low-temperature operating conditions to verify valve sealing performance and reliability for cryogenic applications.
Brinell, Rockwell & Vickers Hardness Tester
Ensures material hardness meets international standards for strength, durability, and long-term performance.
Large-Scale Coordinate Measuring Machine (CMM)
Provides high-precision dimensional inspection to ensure machining accuracy and product consistency.
Valve Life Cycle Testing System
Evaluates valve durability and operational reliability through repeated opening and closing cycle tests.
High & Low Temperature Test Chamber
Verifies valve performance and stability under extreme temperature conditions.
High Temperature Aging Test Chamber
Assesses long-term material stability and product reliability under continuous high-temperature exposure.
Desktop SPECTRO Optical Emission Spectrometer (Germany)
Performs rapid and accurate material composition analysis to ensure full material traceability and compliance.
Our engineering team evaluates these factors to ensure long-term reliability and regulatory compliance.
ISO9001:2015
ISO9001:2015
Environmental Management System Certification
Occupational Health & Safety Management System Certification
Certificate of Quality System Approval
ScheduleTo Certificate No HPiVS-iP1001-062-Q-10-00
CEPTUфNKAT COOTBETCTBNа
EAC
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
Certificate of Authority to use the Official APl Monogram
ISO 15848－1 QUALIFICATION CERTIFICATE
Test Report
Butterfly valves are used to isolate or regulate flow in pipelines. Their lightweight design and compact structure make them ideal for large-diameter piping systems.
Concentric butterfly valves are suitable for general service, double offset valves reduce seat wear for higher performance, and triple offset valves provide zero-leakage sealing for high-temperature and critical applications.
Butterfly valves are often preferred for large pipe sizes where space, weight, and cost are important considerations while still providing reliable isolation and flow control.
Q Can butterfly valves handle high-pressure applications?
Yes. High-performance and triple offset butterfly valves are specifically designed for high-pressure, high-temperature, and demanding industrial services.
Q Which industries commonly use butterfly valves?
Butterfly valves are widely used in water treatment, HVAC, chemical processing, power generation, marine, mining, and oil & gas industries.
Hangzhou Kaiwei Valve Group Co, Ltd, established in 2015, is a cutting-edgeindustrial enterprise that specializes in the R&D, design, casting, production,and sales of fluid control products and services
Contact Us
Downloads
Engineering Support
