The DBB Plug Valve with Electric Actuator integrates a double block and bleed plug valve with an electric actuator for automated valve operation.
The configuration fits oil and gas pipeline projects, storage and transfer systems, and process facilities requiring electrically operated isolation valves for centralized or remote control.
Technical Specifications
|
Parameter |
Specification |
|
Valve Type |
Double Block & Bleed (DBB) Plug Valve |
|
DBB Function |
Two independent sealing barriers with intermediate cavity bleed |
|
Operation |
Quarter-turn Electric Actuator |
|
Size Range |
2"–24" (DN50–DN600) |
|
Pressure Rating |
Class 150–Class 900 |
|
Body Materials |
ASTM A216 WCB / ASTM A352 LCB / ASTM A217 WC6 |
|
Seat Materials |
PTFE / RPTFE / PEEK / Devlon |
|
End Connection |
RF / RTJ / Butt Weld |
|
Temperature Range |
-29°C to +180°C, depending on body and seat material selection |
|
Actuator Torque |
50–5000 Nm |
|
Control Mode |
On-Off / Modulating |
|
Actuator Protection |
IP67 enclosure |
|
Actuator Mounting |
ISO 5211 |
|
Power Supply |
Configured according to actuator requirements |
|
Hazardous-Area Configuration |
Explosion-Proof / ATEX Options |
|
Position Feedback |
Optional |
|
Fail-Safe Function |
Spring-Return Option |
|
Design Standards |
API 6D / API 599 |
|
Face-to-Face |
ASME B16.10 |
|
Flange Standard |
ASME B16.5 |
|
Testing |
API 6D / ISO 5208 |
Electric Actuator Configuration
Actuator Selection
Actuator torque is selected according to the valve operating torque, size, pressure class and service conditions. The available torque range is 50–5000 Nm.
Control Mode
On-Off control is used for fully open or fully closed operation. Modulating control is available where intermediate valve positioning is required.
Actuator Inputs
Specify power supply, control mode, hazardous-area requirements, enclosure protection, manual override and position feedback when requesting the actuator configuration.
Protection & Mounting
IP67 enclosure protection and ISO 5211 mounting are available. Explosion-proof and ATEX configurations can be specified for applicable hazardous-area installations.
Valve Structure & Working Principle
Double Block and Bleed Function
Two independent sealing barriers isolate the upstream and downstream sides.
The central cavity can be depressurized or vented through the bleed connection.
The specified isolation function is DBB; DIB-1 and DIB-2 are separate API 6D functional categories.
Quarter-Turn Plug Operation
The plug rotates 90° between the open and closed positions.
The electric actuator converts electrical control into rotary plug movement.
The configuration supports automated valve operation and remote control.
Customization Options
Valve Configuration
Valve materials, pressure class, size and end connection can be specified according to project requirements.
Actuator Configuration
Actuator torque, power supply, control mode, hazardous-area protection and position feedback can be specified according to site requirements.
Project Documentation
Material certificates, inspection records, test reports and other project documents can be supplied when required.
Standards & Testing
Design & Manufacturing
The valve is designed and manufactured with reference to API 6D and API 599. Applicable dimensional requirements include ASME B16.10 and ASME B16.5.
Pressure & Leakage Testing
Pressure, seat and leakage testing is performed according to the applicable API 6D requirements, with ISO 5208 used as the leakage-rate reference where applicable. DBB testing is performed according to the applicable API 6D requirements when the DBB function is specified.
Inspection
Final inspection covers valve configuration, dimensions, marking, operating function, actuator operation and appearance. Material certificates, inspection records and test reports can be supplied according to project requirements.
Compliance
API 607 / API 6FA fire-safe requirements and NACE MR0175 / ISO 15156 sour-service requirements can be specified where required by the project.
FAQ
Q: What information should I provide when requesting a quotation?
A: Provide the valve size, pressure class, medium, operating temperature, body material, seat material, end connection, actuator power supply, control mode and quantity. Hazardous-area requirements and required documentation should also be specified when applicable.
Q: Can export packaging and shipping marks be customized?
A: Yes. Seaworthy export packaging and customized shipping marks can be arranged according to the shipment requirements.
Q: Can third-party inspection be arranged?
A: Yes. Third-party inspection by agencies such as SGS, BV or TÜV can be arranged according to project requirements.
Q: Can valve position be monitored remotely?
A: Yes. Position feedback can be included in the actuator configuration when the control system requires remote valve position monitoring.
Q: Can this valve replace an existing actuated valve?
A: Replacement should be checked against the existing valve size, pressure class, operating torque, actuator mounting, power supply, control mode and end connection.
Q: What project documents can be supplied?
A: Material certificates, pressure test reports, dimensional inspection records and other required quality documents can be included according to the purchase specification.
Q: What is the MOQ for this DBB Plug Valve with Electric Actuator?
A: MOQ depends on the valve and actuator configuration. Standard and project orders can be quoted based on the required quantity.
Q: What is the typical lead time?
A: Typical lead time is 4–8 weeks after specifications are confirmed. Special materials, actuator configurations or project requirements may require additional time.
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