Butterfly valve with galvanized disc and EPDM sealing Pn 16

Wafer type cast iron butterfly valves PN 16 with a galvanized disc and EPDM sealing represent a type of pipeline valves, where the closing element is made in the form of a disc that rotates around its axis. This allows the valve to transition from the “open” position to the “closed” position by turning 90°.

Connection type

Wafer connection allows installing butterfly valves between flat flanges without the need for additional gaskets due to the EPDM sealing.

EPDM sealing:

• EPDM material has high chemical resistance to water, steam, weak acids, and alkalis.
• Operating temperature range: from -40°C to +120°C (in some cases up to +130°C).
• It is characterized by elasticity, ensuring a reliable fit of the disc to the body even after multiple opening/closing cycles.

Advantages of butterfly valves with a galvanized cast iron disc and EPDM sealing

1. Tightness: EPDM sealing provides a high degree of tightness even at low pressures. This makes such valves ideal for water supply and heating systems.
2. Easy installation: Wafer connection allows quickly mounting the valve without additional gaskets or complex tools.
3. Cost-effectiveness: Butterfly valves have relatively low cost compared to other types of pipeline valves with similar purposes.
4. Compact size: Small installation sizes make them convenient for use in confined spaces of pipeline systems.
5. Ease of control: Control is carried out by a quarter-turn (90°), providing a quick transition between the “open” and “closed” positions.

Application areas

Butterfly valves with EPDM sealing are widely used in the following areas:

• Water supply and heating systems.
• Sewer systems.
• Industrial pipelines for transporting water and steam.
• Food production (subject to sanitary standards compliance).
• Firefighting systems due to the quick action of the closing/opening mechanism.

Butterfly valves DN 250-600 with a galvanized disc and EPDM seal are equipped with manual actuators.