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The Double Block and Bleed Ball Control Valve (DBB Valve), as defined by API 6D, features dual seating surfaces that provide secure sealing against pressure from both ends. An integrated venting and bleeding mechanism safely relieves cavity pressure between the seats, ensuring reliable operation in critical service.
Available in modular (double ball) or integral designs, the DBB Valve meets diverse application requirements. The modular type incorporates two balls in a single valve for maximum safety, while the integral type is commonly used in instrumentation systems with flexible configuration options.
Engineered with a fire-safe design, anti-blow-out stem, and robust forged construction, the Double Block and Bleed Ball Control Valve delivers long-term, dependable performance under demanding conditions. It is offered in sizes ranging from NPS 2 to NPS 28 and pressure classes from 150 lb to 2500 lb, making it a versatile solution for oil & gas, refining, petrochemical, and industrial applications.
The Ball Control Valve (DBB Valve) is widely utilized in natural gas, petrochemical, pipeline transmission, and storage industries, where absolute zero leakage is a critical requirement. It is indispensable for main-line isolation and multi-purpose service in liquid pipelines and refined product transmission lines, ensuring safe operation and preventing cross-contamination.
In addition, the valve is extensively used in meter calibration systems, where a reliable tight seal on each valve connected to the meter device is essential for accurate measurement and system integrity. Its double block and bleed functionality enhances safety during maintenance, pressure testing, and system isolation, making it a trusted solution for high-integrity industrial applications.
PRODUCT RANGE
Class 150 from ½'' to 10''
Class 300 from ½'' to 8''
Class 600 from 1/2" to 4"
Materials
BODY: Carbon steel, Stainless steel, Low temperature carbon steel, Duplex, Special Alloys,... Other materials under request
SOFT SEATS: PTFE, RPTFE, PEEK, DEVLON, NYLON,... Other materials under request
METAL SEAT: Tungsten Carbide(TC), Stellited, Ni60...Other materials under request.
TRIM: A105+EP, 304, 316, 410, MONEL,... Other materials under request
DESIGN STANDARDS
ASME Standards
B1.20.1Pipe Threads, General Purpose(Inch)
B16.10Face-to-Face and End-to-End Dimensions of Valves
B16.25Buttwelding Ends
B16.11Forged Fittings, Socket-Welding and Threaded
B16.5Flanged Fittings and Pipe Flanges
B16.47Large Diameter Steel Flanges
API Standards
6DSpecifications for Pipeline valves
598Valve Inspection and Testing
607Fire test for soft-seated quarter-turn valves
6FASpecification for Fire Test for Valves
MSS Standards
SP-55Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Visual Method for Evaluation of Surface Irregularities
SP-54Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Radiographic Examination Method
SP-53Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Magnetic Particle Examination Method
| Category | Details |
|---|---|
| Product | DBB Ball Valve (Double Block and Bleed Ball Control Valve) |
| Size | 1/2" – 48" |
| Pressure | 150lb – 2500lb |
| Power / Actuation | Worm Gear, Pneumatic, Hydraulic |
| Brand Name | YFV, OEM |
| Materials | Body: Carbon Steel, Stainless Steel, etc. Soft Seats: PTFE Metal Seat: Tungsten Carbide (TC), Stellited, Ni60 Trim: A105+EP, 304, 316, 410, MONEL Other materials available on request |
| Design Standards | ASME, API, MSS |
| Application | Suitable for various industries. Ideal for B2B buyers such as industrial manufacturers, petrochemical plants, oil & gas transmission, and pipeline operators. Leading manufacturer of Double Bleed Ball Control Valves. |
A: Unlike conventional valves, it can effectively prevent leakage during system operation, and it allows for quick closure and easy discharge.
A: It has two balls in one valve, which ensures greater safety. The three - piece body construction is beneficial for instrumentation and piping, and it can save weight, space, and installation time.
A: Yes, it is available in a class range from 150 lb to 2500 lb, suitable for various pressure levels, including high - pressure applications.
A: Its cavity-bleeding capability allows operators to safely vent pressure and verify sealing integrity without removing the valve. This reduces downtime and enhances overall safety during maintenance operations.
A: Yes. The valve can be equipped with electric, pneumatic, or hydraulic actuators depending on the application. Automation ensures reliable performance in remote or hazardous environments where manual operation is impractical.




The Double Block and Bleed Ball Control Valve (DBB Valve), as defined by API 6D, features dual seating surfaces that provide secure sealing against pressure from both ends. An integrated venting and bleeding mechanism safely relieves cavity pressure between the seats, ensuring reliable operation in critical service.
Available in modular (double ball) or integral designs, the DBB Valve meets diverse application requirements. The modular type incorporates two balls in a single valve for maximum safety, while the integral type is commonly used in instrumentation systems with flexible configuration options.
Engineered with a fire-safe design, anti-blow-out stem, and robust forged construction, the Double Block and Bleed Ball Control Valve delivers long-term, dependable performance under demanding conditions. It is offered in sizes ranging from NPS 2 to NPS 28 and pressure classes from 150 lb to 2500 lb, making it a versatile solution for oil & gas, refining, petrochemical, and industrial applications.
The Ball Control Valve (DBB Valve) is widely utilized in natural gas, petrochemical, pipeline transmission, and storage industries, where absolute zero leakage is a critical requirement. It is indispensable for main-line isolation and multi-purpose service in liquid pipelines and refined product transmission lines, ensuring safe operation and preventing cross-contamination.
In addition, the valve is extensively used in meter calibration systems, where a reliable tight seal on each valve connected to the meter device is essential for accurate measurement and system integrity. Its double block and bleed functionality enhances safety during maintenance, pressure testing, and system isolation, making it a trusted solution for high-integrity industrial applications.
PRODUCT RANGE
Class 150 from ½'' to 10''
Class 300 from ½'' to 8''
Class 600 from 1/2" to 4"
Materials
BODY: Carbon steel, Stainless steel, Low temperature carbon steel, Duplex, Special Alloys,... Other materials under request
SOFT SEATS: PTFE, RPTFE, PEEK, DEVLON, NYLON,... Other materials under request
METAL SEAT: Tungsten Carbide(TC), Stellited, Ni60...Other materials under request.
TRIM: A105+EP, 304, 316, 410, MONEL,... Other materials under request
DESIGN STANDARDS
ASME Standards
B1.20.1Pipe Threads, General Purpose(Inch)
B16.10Face-to-Face and End-to-End Dimensions of Valves
B16.25Buttwelding Ends
B16.11Forged Fittings, Socket-Welding and Threaded
B16.5Flanged Fittings and Pipe Flanges
B16.47Large Diameter Steel Flanges
API Standards
6DSpecifications for Pipeline valves
598Valve Inspection and Testing
607Fire test for soft-seated quarter-turn valves
6FASpecification for Fire Test for Valves
MSS Standards
SP-55Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Visual Method for Evaluation of Surface Irregularities
SP-54Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Radiographic Examination Method
SP-53Quality Standard for Steel Castings for Valves,Flanges,and Fittings and Other Piping Components-Magnetic Particle Examination Method
| Category | Details |
|---|---|
| Product | DBB Ball Valve (Double Block and Bleed Ball Control Valve) |
| Size | 1/2" – 48" |
| Pressure | 150lb – 2500lb |
| Power / Actuation | Worm Gear, Pneumatic, Hydraulic |
| Brand Name | YFV, OEM |
| Materials | Body: Carbon Steel, Stainless Steel, etc. Soft Seats: PTFE Metal Seat: Tungsten Carbide (TC), Stellited, Ni60 Trim: A105+EP, 304, 316, 410, MONEL Other materials available on request |
| Design Standards | ASME, API, MSS |
| Application | Suitable for various industries. Ideal for B2B buyers such as industrial manufacturers, petrochemical plants, oil & gas transmission, and pipeline operators. Leading manufacturer of Double Bleed Ball Control Valves. |
A: Unlike conventional valves, it can effectively prevent leakage during system operation, and it allows for quick closure and easy discharge.
A: It has two balls in one valve, which ensures greater safety. The three - piece body construction is beneficial for instrumentation and piping, and it can save weight, space, and installation time.
A: Yes, it is available in a class range from 150 lb to 2500 lb, suitable for various pressure levels, including high - pressure applications.
A: Its cavity-bleeding capability allows operators to safely vent pressure and verify sealing integrity without removing the valve. This reduces downtime and enhances overall safety during maintenance operations.
A: Yes. The valve can be equipped with electric, pneumatic, or hydraulic actuators depending on the application. Automation ensures reliable performance in remote or hazardous environments where manual operation is impractical.



