HAK-PI Flat Flange PN25 DN400
Leak-tight, pressure-resistant pipe connection for large-diameter industrial lines.
HAK-PI Flat Flange PN25 is engineered for joining pipe lines in industrial plants. Moreover, its construction withstands 25 bar operating pressure for reliable performance in critical duties. In particular, carbon steel material and a protective paint coating deliver long service life. Furthermore, production to EN 1092-1 and ISO 7005 guarantees compliance on every project.
The flat face design works with a gasket to achieve maximum sealing. In addition, the standard bolted connection system simplifies installation considerably. As a result, 20 bolt holes allow secure fixing of the large DN400 flange. Consequently, the system holds its seal even under pressure and reduces maintenance needs. It operates at a maximum working temperature of 300°C and is rated PN25 (25 bar) across water, steam, oil and gas service.
HAK-PI Flat Flange PN25 — Technical Specifications
Water treatment plants and pump stations frequently select this flange for dependable connections. Petrochemical refineries and gas lines also rely on its high-pressure strength. Moreover, power plants and steam systems benefit from its 300°C temperature tolerance. Therefore, it suits fire-fighting and sprinkler installations as an ideal connection element. Furthermore, it retains durability even in harsh environmental conditions.
Key Advantages
- 25 bar pressure-resistant construction delivers reliable connections in demanding conditions
- Standard bolted connection enables fast and easy installation
- Painted surface provides corrosion protection for long service life
Applications
- Water treatment plants and pump stations
- Petrochemical refineries and gas lines
- Power plants and steam systems
- Fire-fighting and sprinkler installations
In conclusion, HAK-PI Flat Flange PN25 is the ideal solution for those seeking reliable, leak-tight connections in large-diameter pipe lines. ORFA Industrial supplies it worldwide and provides technical support.
ORFA INDUSTRIAL PRODUCTS INDUSTRY AND TRADE INC.
Your Reliable Partner in Industrial Flow Technologies

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