Contact Platform Support
Help CenterFire-Safe API 609 Butterfly Valve With Double Block and Bleed Function, for Oil & Gas Pipeline Isolation
Product Spotlights
Related Products
-
API 609 Double Eccentric Butterfly Valve for High Temperature Applications up to 425°CNegotiableMOQ: 1 Unit -
API 609 Marine Butterfly Valve With Standard Mill Test Report and Technical SupportNegotiableMOQ: 1 Unit
-
Lug Type Marine Butterfly Valve With Stainless Steel Disc, API 609 StandardNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve for Engine Room Seawater Intake, API 609 DesignNegotiableMOQ: 1 Unit
-
DNV-GL Approved Marine Butterfly Valve, Full Compliance With API 609 StandardNegotiableMOQ: 1 Unit
As a professional valve manufacturer with ISO9001 certification, Shanghai Zhibang Valve is dedicated to providing reliable flow control solutions for critical industries. Our Fire-Safe API 609 Butterfly Valve with Double Block and Bleed (DBB) Function represents our commitment to safety and performance in demanding oil and gas pipeline applications. This valve is engineered to offer a superior sealing solution for isolation, ensuring operational integrity even under extreme fire conditions, thereby protecting your assets and personnel.
This valve is designed to meet the rigorous requirements of pipeline isolation where positive isolation is non-negotiable. The DBB functionality allows for the isolation of upstream and downstream pressure and provides a means to vent the cavity between the seals, a critical feature for maintenance and safety procedures. Its fire-safe design, compliant with API 609, ensures that the valve maintains its sealing capability during and after exposure to fire, preventing catastrophic fluid release.
Key Features & Technical Advantages:
- Double Block and Bleed (DBB) Design: Provides two seating surfaces that independently block flow from each side of the valve. The bleed port allows for pressure equalization and cavity drainage, enabling safe isolation and verification of seal integrity.
- API 609 Fire-Safe Certification: The valve is designed and tested to withstand fire conditions. The seat and seal materials are selected to maintain a seal or achieve closure during a fire, minimizing the risk of fueling a fire.
- Robust Construction: Available in materials like carbon steel and stainless steel to resist corrosion and withstand high pressures (Class 150 to Class 600) in pipeline environments.
- Bidirectional Sealing: Engineered for effective sealing against pressure from either direction, enhancing its reliability as an isolation valve.
- Low Torque Operation: The butterfly valve design offers a compact profile and requires lower operating torque compared to gate valves, allowing for smaller, more cost-effective actuators.
- Versatile Actuation: Can be fitted with manual gear operators, pneumatic actuators, or electric actuators for remote or automated operation, integrating seamlessly into modern SCADA systems.
- Extended Service Life: Features like metal-seated or advanced resilient seats are designed for long-term durability and reduced maintenance cycles, even with abrasive or corrosive media.
Technical Specifications Table:
| Parameter | Specification |
|---|---|
| Design Standard | API 609, Fire-Safe |
| Size Range | 2" to 48" (DN50 to DN1200) |
| Pressure Class | Class 150, 300, 600 |
| End Connection | Wafer, Lug, Double Flanged |
| Body Material | WCB, CF8, CF8M, Other Alloys |
| Seat Material | Metal (Inconel, Stellite), EPTFE, Fire-Safe Elastomer |
| Temperature Range | -20°C to 200°C (Standard), Higher ranges available |
| Operation | Lever, Gear, Pneumatic Actuator, Electric Actuator |
The primary benefit for our clients is enhanced safety and operational reliability. By incorporating a certified fire-safe DBB valve into your pipeline system, you mitigate the risk of uncontrolled leaks during emergency situations. This leads to reduced environmental liability, lower insurance premiums, and compliance with stringent industry safety regulations. Furthermore, the valve's design facilitates easier and safer maintenance, as the bleed function allows personnel to verify isolation before work begins, protecting your team.
Frequently Asked Questions (FAQ):
-
What does "Double Block and Bleed" mean for this butterfly valve?
The DBB function means the valve has two independent sealing surfaces. When closed, it blocks flow from both the upstream and downstream sides. The "bleed" refers to a small port that allows the pressurized fluid trapped in the valve body cavity to be safely drained or vented to the atmosphere, confirming a positive isolation. -
How is the fire-safe performance tested and certified?
The fire-safe design is tested according to standards like API 607/API 6FA or ISO 10497, which involve exposing the valve to a specified flame temperature for a duration and then performing a seat leakage test. Compliance with API 609 indicates the valve meets specific design and performance criteria for fire-safe applications. -
Can this valve be used for on/off service as well as isolation?
Yes. While its primary design is for positive isolation (especially for maintenance), it can effectively function as a reliable on/off valve for process control in oil and gas pipelines. -
What are the typical actuation options available?
We offer a range of actuation solutions. For manual operation, lever or gear operators are standard. For automated systems, pneumatic (double-acting or spring-return) and electric motor actuators can be supplied, tailored to your control system requirements. -
Is the valve suitable for sour service (H2S environments)?
Valves for sour service can be provided. This requires specific material grades (like NACE MR0175 compliant materials) and manufacturing controls. Please specify your sour service requirements during inquiry. -
What is the delivery lead time for a custom-sized valve?
Lead times vary based on size, material, and actuation package. Standard sizes often have shorter lead times. We provide accurate delivery schedules upon receipt of your detailed specifications. -
Do you provide testing certificates with the valve?
Yes. Standard delivery includes documentation such as a material test report and a certificate of conformance. Additional certified reports like fire test certificates or third-party inspection reports are available upon request. -
What after-sales support do you offer?
We provide technical support for installation and operation. Spare parts like seals, seats, and stems are available. Our global presence through major ports like Shanghai, Guangzhou, and Hong Kong facilitates timely logistics and support.
Backed by our ISO9001 certified manufacturing processes and an annual export value demonstrating our global reach across North America, Europe, Asia, and other key markets, you can trust Shanghai Zhibang Valve for quality and reliability. Our valves are shipped from major Chinese ports, ensuring efficient delivery. Choose our Fire-Safe API 609 DBB Butterfly Valve to add a critical layer of safety and performance to your oil and gas pipeline infrastructure. Contact us today for a detailed quotation or to discuss your specific project requirements.
Send Inquiry to This Supplier
You May Also Like
-
API 609 Marine Butterfly Valve With 12-Month Full Warranty and MTRNegotiableMOQ: 1 Unit
-
API 609 Fire-Safe Marine Butterfly Valve With Gear Operator, Class 150 & 300NegotiableMOQ: 1 Unit
-
Manual and Pneumatic Actuated DIN 3202 Marine Butterfly ValvesNegotiableMOQ: 1 Unit
-
DIN 3202 F05/F07 Flanged Marine Butterfly Valve With Mill Test ReportNegotiableMOQ: 1 Unit
-
DIN Standard Marine Butterfly Valve OEM Supplier for Engine Room PipingNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve OEM Factory for Shipboard Seawater and Ballast SystemsNegotiableMOQ: 1 Unit
-
DIN 3202 Butterfly Valve Factory With 12-Month Warranty and Technical SupportNegotiableMOQ: 1 Unit
-
Marine Butterfly Valve Manufacturer Compliant With DNV, LR, and ABS StandardsNegotiableMOQ: 1 Unit
-
Double Eccentric Marine Butterfly Valve for Seawater Cooling Systems, DN50 to DN1200NegotiableMOQ: 1 Unit
-
DIN 3202 Marine Butterfly Valve in 316 Stainless Steel for OEM OrdersNegotiableMOQ: 1 Unit
