Technical data
01| Nominal size | DN50 – DN600 |
|---|---|
| Pressure rating | PN16 – PN25 |
| Service temperature | EN-GJL-250 −30 °C … +180 °CEN-GJS-400-18-LT −30 °C … +90 °C1.4401 −30 °C … +130 °C Depends on body material; manufacturer's declaration. Exact value in the quotation. |
| Standard | DIN · JIS · ANSI |
| Connection type | Lug |
| Design | EN 593EN 593Metallic butterfly valves |
| Face-to-face dimension | EN 558 Series 20EN 558Face-to-face and centre-to-face dimensions of valves ISO 5752 Series 20ISO 5752Face-to-face dimensions of flanged valves |
| End connection standard | EN 1092-2EN 1092-2Flanges — cast iron flanges, PN designated ISO 7005-2ISO 7005-2Metallic flanges — cast iron flanges |
| Test | TS EN 12266-1EN 12266-1Industrial valves — testing of valves · pressure tests |
The standards listed apply to stocked products. Contact us for other standards.
Material
02Material options for lug butterfly valves are listed below.
| Body | |
|---|---|
| Disc | |
| Seal | |
| Coating for Fe-C materials |
Features
03Advantages
- Easy maintenance: only one side of the pipeline needs to be dismantled
- High mechanical strength: a stronger, more rigid flange joint
- Low leakage risk: reliable disc-to-seat alignment
- Dead-end service: the downstream line can be isolated while the system is running
- Available in a wide range of sizes
Applications
- Water distribution and treatment systems
- HVAC (heating, ventilation, air conditioning)
- Chemical and petrochemical process lines
- Fire-fighting systems
- Power plants
- Marine and ship machinery
- Food and beverage production
Accessories
04
Actuator
Actuators open and close industrial valves automatically. By removing the need for manual operation, they make processes safer and more efficient.

Limit switch box
Limit switch boxes are used in industrial automation to monitor the position of a valve or another moving mechanical part. They are usually combined with pneumatic and electric actuators, and can also be mounted directly on a manually operated valve.

Manual gear operator
Manual gear operators make it possible to operate large, high-torque valves by hand. The operator turns a handwheel or lever, and the gear mechanism opens or closes the valve.
Downloads
05Open datasheet
IN PREPARATION
Open sample



