Butt Welded Butterfly Valve
Double Offset Butt Welded Butterfly Valve
for High Temperature & Pressure | Value Valves
Service Conditions
Service: High Temperature Service
Pressure Rating: High Pressure Service
Operation: High Cycle Operation
Media: Steam, Thermal Oil, Process Fluids
Piping & System
Application: Industrial Piping Systems
Installation: Welded into Pipeline
Leakage Risk: Eliminates Flange Leakage
Operation & Performance
Shut-Off: Tight Shut-Off Performance
Sealing: Reliable Metal / Soft Seat Options
Industry Applications
Industries: Petrochemical, Power Plant, Process Industry
Projects: EPC Projects, Long-Term Operation Systems
Double offset butt welded butterfly valve designed
for high temperature and high pressure service.
Suitable for steam service, thermal oil systems, petrochemical plants, power generation facilities, and EPC projects.
Butt welded ends allow the valve to be fully welded into industrial piping systems, eliminating flange leakage risks and ensuring tight shut-off, low torque operation, and long-term reliability.
Global Certifications & Achievements
Certified in 10+ countries
Over 138 product-type approvals
Valve size capability: up to 3600mm
45+ years of manufacturing experience
Exported to 45+ countries
Key Certifications
|
TÜV Rheinland |
PED(H) (Pressure Equipment Directive) ATEX 94/9/EC – Explosion-proof Compliance ISO 10497 / API 607 – Fire-safe Testing API 609 Monogram, ISO 10497 ISO 15848-1 / ISA 93.00.01 – Fugitive Emissions Testing BS 6364 – Cryogenic Testing IEC 61508-1 SIL 3 – Functional Safety
|
|
TSG |
TSG D7002-2006 – China Special Equipment Certification |
Specifications
| Size Range 6"- 36" | DN 150 - DN 900 |
Face-to-Face API 609 | ISO 5752 | ASME B16.10 |
| Pressure Ratings -196°C to +760°C (-320°F to +1400°F) |
Marking Standard MSS-SP-25 |
| Pressure Ratings 150 LB |
Design Flange BUTT WELDING - ASME B16.25 |
| Body Styles Butt welding |
Pressure Testing ISO 5208 | BS 6364 |
| Seat Type Metal Seat |
Fire Testing API 607 | ISO 10497 |
| Body Wall Thickness ASME B16.34 |
Fugitive Emissions ANSI/ISA-SP-93 | TA-Luft | ISO 15848 | API 641 |
| Operator Mounting Flange ISO 5211 |
Explosion-proof ATEX 94/9/CE Group II Category 2 GD |
| Design Flange ASME B16.34 | ASME B16.5 | EN 593 |
Leakage Class ANSI FCI 70-2-2003 Table 1 CLASS V ISO 5208 Rate A |
Solutions
Customization Options
-
Size & Materials
Special sizes and alloys available upon request to meet specific temperature and fluid requirements. -
Jacketed Design
Maintain fluid temperature to prevent solidification or viscosity changes in pipelines. -
Extended Stem Design
Ideal for high/low-temperature environments—reduces thermal conduction for operator safety.
Performance & Testing Facilities
-
Fire Testing Laboratory
Simulates real fire scenarios to evaluate pressure resistance and fire-safe integrity.
-
Cryogenic Testing
Performs valve functionality tests at cryogenic temperatures down to -196°C, ensuring product reliability.
-
ISO-Class Clean Room
Supports oil-free cleaning and polishing for internal surfaces, meeting clean-service requirements.
-
Cycle Life Testing
Verifies long-term durability through repeated opening/closing cycles under simulated service conditions. -
Emissions Testing
Assesses fugitive emissions in control valves under volatile or hazardous fluid environments. -
Pressure Testing
All valves undergo full hydrostatic testing to meet both international standards & customer specifications.
