COOSAI valve group
| Size | NPS 1/2" to 16" |
| Function | Provides double isolation and bleed function |
| Temperaturerange | -29°C to 425°C (-20°F to 797°F) |
| Bodytype | Forged / Cast |
| Testingstandard | API 598, ISO 5208 |
| Sealmaterial | PTFE / Graphite |
| Material | Stainless Steel / Carbon Steel / Alloy Steel |
| Productname | Double Block And Bleed Valve |
| Pressurerating | Class 150 to Class 1500 |
| Type | Isolation Valve |
| Connectiontype | Flanged / Threaded / Welded |
| Pressure | 150LB to 2500LB |
| Application | Oil & Gas, Petrochemical, Refinery, Power Plants |
| Designstandard | API 6D, API 599, ASME B16.34 |
| Operation | Manual / Pneumatic / Electric Actuated |
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Product Specification
| Size | NPS 1/2" to 16" | Function | Provides double isolation and bleed function |
| Temperaturerange | -29°C to 425°C (-20°F to 797°F) | Bodytype | Forged / Cast |
| Testingstandard | API 598, ISO 5208 | Sealmaterial | PTFE / Graphite |
| Material | Stainless Steel / Carbon Steel / Alloy Steel | Productname | Double Block And Bleed Valve |
| Pressurerating | Class 150 to Class 1500 | Type | Isolation Valve |
| Connectiontype | Flanged / Threaded / Welded | Pressure | 150LB to 2500LB |
| Application | Oil & Gas, Petrochemical, Refinery, Power Plants | Designstandard | API 6D, API 599, ASME B16.34 |
| Operation | Manual / Pneumatic / Electric Actuated | ||
| High Light | API 6D fire-safe ball valve ，double ball valve for oil and gas ，fire-safe double block and bleed valve | ||
The Double Ball Ball Valve is an advanced industrial valve engineered for critical pipeline applications in the oil, gas, and petrochemical sectors. Designed to provide superior sealing and safety in demanding environments, this valve features a unique double-ball mechanism that ensures reliable dual-block isolation and venting (DBB) capability. Ideal for Middle Eastern oil refineries, processing plants, and pipeline networks, the Double Ball Ball Valve offers enhanced performance where zero leakage, high pressure, and extreme service conditions are paramount.
Robust Three-Piece Body: Allows easy maintenance and installation without removing the valve from the pipeline.
Double Block & Bleed (DBB) Function: Isolates both upstream and downstream flow while safely venting the cavity.
API 607 Fire-Safe Certified: Ensures integrity and leakage control in case of fire.
Blowout-Proof Stem & Anti-Static Design: Prevents stem ejection and eliminates static charge buildup.
Self-Cavity Relief: Automatically relieves excess pressure within the valve body.
Fugitive Emission Control (Optional): Meets stringent environmental standards with low-emission packing.
Compliant with API, ASME, and API 598 Standards: Guarantees reliability and global acceptance.
| Parameter | Specification |
|---|---|
| Design Standard | API 6D |
| Face-to-Face | ASME B16.10 |
| Connection Standard | ASME B16.5, ASME B16.25 (RF, RTJ, FF, BW) |
| Test Standard | API 598 |
| Nominal Size | 1/2" to 16" |
| Pressure Rating | Class 150 to 2500 |
| Materials | CS, SS, DSS, LTCS, Inconel, Monel, Alloy Steel, Aluminum Bronze |
| Operation | Manual (Gear, Lever, or Handwheel) |
What is a Double Ball Ball Valve?
A Double Ball Ball Valve uses two independent ball segments to provide double isolation and bleed capability, enhancing safety in high-risk applications.
How does the fire-safe design work?
It meets API 607 standards, with special seats and seals that maintain sealing integrity during and after fire exposure.
Why is the anti-static feature important?
In hydrocarbon services, static electricity can ignite flammable media. This valve includes a spring-loaded system to ground static charges.
What makes this valve suitable for Middle East oil plants?
Its high-pressure capability, corrosion-resistant materials, and fire-safe design suit the region’s high-temperature, high-risk oil and gas operations.
How does self-cavity relief work?
If pressure builds between the two balls, the design automatically relieves it to the downstream side, preventing seal damage.
Our Double Ball Ball Valve delivers unmatched safety and durability for refinery, pipeline, and offshore applications. With full compliance to international standards and optional fugitive emission testing, it ensures operational integrity and environmental protection. Trusted by oil and gas operators across the Middle East, this valve is built to perform in extreme conditions while minimizing maintenance and lifecycle costs.
Company Details
Business Type:
Manufacturer
Year Established:
2006
Total Annual:
>30000000
Employee Number:
>320
Ecer Certification：
Active Member
Company Introduction Coosai a specialized valve manufacturer which has 30 years’ experience in the design and manufacturing of quality engineered valves. Coosai has a sound organization structure, professional technical capacity, advanced manufacturing and testing equ... Company Introduction Coosai a specialized valve manufacturer which has 30 years’ experience in the design and manufacturing of quality engineered valves. Coosai has a sound organization structure, professional technical capacity, advanced manufacturing and testing equ...
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