The ebro WB 12 is a butterfly valve designed for DN 150 to DN 200 pipelines and supports a wide range of actuation options, including lever handle, handwheel, chain wheel, pneumatic actuator, electric actuator, and hydraulic cylinder. The valve's sealing class complies with both EN 12266 Leakage Rate A and ISO 5208 Class A. It is suitable for operating conditions with a maximum working temperature of 90 °C and a maximum working pressure of 4 bar, meeting media shut-off and control requirements for on-site manual operation, remote control, and automated systems.

EBRO
WB 12 Manual, Pneumatic and Electric Butterfly Valve | EBRO
Product code: WB12
Butterfly valve for DN 150-DN 200 pipelines, supporting manual and automatic actuation for media shut-off and control.
- Category
- Butterfly Valves
- Maximum Working Temperature
- Max. 90 °C
- Maximum Working Pressure
- Max. 4 bar
Specifications
- Nominal Diameter
- DN 150 - DN 200
- Sealing Class
- EN 12266 (Leakage Rate A); ISO 5208 Class A
- Maximum Working Temperature
- Max. 90 °C
- Maximum Working Pressure
- Max. 4 bar
- Actuator Types
- Lever handle, handwheel, chain wheel, pneumatic actuator, electric actuator, hydraulic cylinder
Application scenarios
Media shut-off and control for DN150-DN200 pipelines
Suitable for media shut-off and control in pipelines with nominal diameters from DN150 to DN200. A lever handle, handwheel, pneumatic actuator, or electric actuator can be selected according to on-site requirements. Under conditions of a maximum working temperature of 90 °C and a maximum working pressure of 4 bar, the valve's sealing class complies with EN 12266 Leakage Rate A and ISO 5208 Class A.
Selection points
Class A Sealing to Dual Standards
The sealing class of the WB 12 complies with EN 12266 Leakage Rate A and ISO 5208 Class A, making it suitable for selection cases where shut-off sealing performance must be verified against these standards.
Compatibility with Multiple Actuator Types
The WB 12 can be configured with a lever handle, handwheel, chain wheel, pneumatic actuator, electric actuator, or hydraulic cylinder, allowing manual or automatic actuation to be selected according to on-site operation and control requirements.
FAQ
What are the applicable sizes, pressures, and temperature ranges of the ebro WB 12 butterfly valve?
The WB 12 covers nominal diameters from DN 150 to DN 200, with a maximum working pressure of 4 bar and a maximum working temperature of 90 °C. When selecting the valve, ensure that the medium's operating conditions do not exceed these pressure and temperature limits.
Which standards does the sealing performance of the WB 12 butterfly valve comply with?
The sealing class of the WB 12 complies with EN 12266 Leakage Rate A as well as ISO 5208 Class A. This means the valve is rated to Class A leakage of the listed standards.
Which operation and actuation options can be configured for the WB 12 butterfly valve?
The WB 12 can be operated manually via a lever handle, handwheel, or chain wheel, or equipped with a pneumatic actuator, electric actuator, or hydraulic cylinder to accommodate on-site manual operation, remote control, and automated actuation requirements.
What should be considered when choosing manual or automatic actuation for the WB 12?
Where local operation is required on site, a lever handle, handwheel, or chain wheel can be selected according to the operating conditions; where automatic opening and closing or integration into a control system is needed, a pneumatic actuator, electric actuator, or hydraulic cylinder can be selected. The actuation method should also be confirmed based on the actual installation space, control method, and application conditions.
Which standard is used for WB 12 valve marking?
The marking of the WB 12 valve complies with the EN 19 standard.
