The ebro Z011-A is a bi-directional sealing wafer butterfly valve covering nominal diameters from DN 20 to DN 1200, with a maximum working pressure of 16 bar and an operating temperature range of -40°C to +200°C. The valve supports multiple standard flange connections, can be installed in any orientation, and is suitable for vacuum lines down to 1 mbar absolute pressure as well as painting and industrial fluid systems.

EBRO
Z011-A Bi-Directional Sealing Wafer Butterfly Valve | EBRO
Product code: Z011-A
Bi-directional sealing wafer butterfly valve with nominal diameters from DN 20 to DN 1200, installable in any orientation, suitable for vacuum and industrial fluid pipelines.
- Category
- Butterfly Valves
- Operating temperature range
- -40 °C to +200°C (depending on pressure, medium, and materials)
- Maximum working pressure
- Max. 16 bar
Specifications
- Nominal diameter
- DN 20 - DN 1200 (DN 20 available in PN 10/16 only)
- Face-to-face dimension standards
- EN 558 Series 20; ISO 5752 Series 20; API 609 Table 1
- Connecting flange standards
- EN 1092 PN 6/10/16; ASME Class 150; AS 4087 PN 16
- Flange sealing faces
- EN 1092 Form A/B; ASME RF, FF
- Top flange standard
- EN ISO 5211
- Leakage class
- EN 12266 Leakage rate A; ISO 5208 Category 3
- Operating standard
- EN 593
- Operating temperature range
- -40 °C to +200°C (depending on pressure, medium, and materials)
- Maximum working pressure
- Max. 16 bar
- Vacuum application pressure
- 1 mbar absolute
- Installation orientation
- Can be installed in any orientation
Application scenarios
Painting and coating systems
For painting or coating systems, a silicone-free configuration is available. The valve offers bi-directional sealing performance, making it suitable for process sections with requirements for contamination control and sealing integrity.
Vacuum or low-pressure pipeline systems
Suitable for vacuum or low-pressure lines down to 1 mbar absolute pressure, for process control applications requiring low leakage and reliable sealing.
Industrial fluid pipelines with controlled temperature and pressure
Suitable for industrial fluid pipelines operating at temperatures from -40°C to +200°C and working pressures up to 16 bar, for on/off or modulating control of media.
Multi-standard flanged pipeline systems
Suitable for pipeline systems using standard flanges such as EN 1092, ASME Class 150, or AS 4087 PN 16, supporting installation and connection to the corresponding flange interfaces.
Selection points
Triple bearing shaft support
The shaft is fitted with three bearings to prevent shaft deflection and maintain high positioning accuracy over long-term use.
Multi-standard flange and face-to-face compatibility
Face-to-face dimensions comply with EN 558 Series 20, ISO 5752 Series 20, and API 609 Table 1; connecting flanges support EN 1092 PN 6/10/16, ASME Class 150, and AS 4087 PN 16.
Flange locating holes and any-orientation installation
The valve body features four flange locating holes to ensure correct valve positioning during installation and supports installation in any orientation.
Bi-directional sealing and vacuum capability
The valve provides full bi-directional sealing, meeting EN 12266 Leakage rate A and ISO 5208 Category 3, and can be used in vacuum conditions down to 1 mbar absolute pressure.
Silicone-free option for the painting industry
A silicone-free valve configuration is available for use in the painting industry.
FAQ
What pipe sizes, pressures, and temperature ranges is the Z011-A wafer butterfly valve suitable for?
The Z011-A covers nominal diameters from DN 20 to DN 1200, with DN 20 available in PN 10/16 only. The maximum working pressure is 16 bar and the operating temperature range is -40°C to +200°C; the actual permissible temperature must be confirmed based on pressure, medium, and valve materials. The valve can also be used in vacuum conditions down to 1 mbar absolute pressure.
Which flange standards and sealing face types can the Z011-A be installed with?
The Z011-A can be installed with EN 1092 PN 6/10/16, ASME Class 150, and AS 4087 PN 16 flanges. Applicable flange sealing faces include EN 1092 Form A/B, as well as ASME RF and FF. Before installation, verify that the pipe flange standard, pressure rating, and sealing face type match the valve configuration.
Which standards do the face-to-face dimensions of the Z011-A comply with, and can it be used for standardization retrofit projects?
The face-to-face dimensions of the Z011-A comply with EN 558 Series 20, ISO 5752 Series 20, and API 609 Table 1. For projects requiring valve replacement or standardized design based on existing pipe installation lengths, the valve and piping space dimensions can be verified against the face-to-face standards above.
How does the Z011-A perform in terms of sealing and bi-directional operation?
The Z011-A features a fully bi-directional sealing design, meeting EN 12266 Leakage rate A and ISO 5208 Category 3. The precision-machined valve body and disc help reduce operating torque and extend service life; the shaft is fitted with three bearings to reduce shaft deflection and maintain positioning accuracy.
Does installing the Z011-A wafer butterfly valve impose any requirements on flow direction or installation orientation?
The Z011-A can be installed in any orientation and offers full bi-directional sealing capability. Four flange locating holes in the valve body help achieve accurate positioning between flanges. Its top flange complies with EN ISO 5211; when mounting an actuator, confirm interface compatibility based on the actual valve model and application conditions.
