Mesh filter model 821C, DN20 PN25, mesh opening 1 mm (45 openings/cm²). Body material: gray cast iron. Max. temperature: 350 °C 821C020D50

The 821C mesh filter is a reliable component designed to protect systems against contaminants in water, steam, and industrial applications. Manufactured from high-quality gray cast iron, it ensures durability and corrosion resistance. This filter is widely used in district heating, refrigeration, air conditioning, and power generation.

Design and Application

The 821C filter features a compact design and allows cleaning of the filter element without removing it from the system—saving time and minimizing downtime. The filter insert, made of AISI304 stainless steel, effectively captures mechanical impurities, while its 1 mm mesh (45 openings/cm²) ensures optimal filtration. The flanges are machined in accordance with EN 1092-2, guaranteeing compatibility with existing installations. The face-to-face dimension complies with EN 558-1 Series 1.

This filter performs excellently in both hot and cold water systems, as well as in steam applications. It operates at temperatures up to 350°C and a nominal pressure rating of PN 25, making it a versatile solution for diverse industrial uses.

Benefits and Features

• Durability and Resistance: The housing, made of gray cast iron (grade GGG 40.3 / GJS-400-18), ensures long-term operation even under demanding conditions.
• High Filtration Efficiency: The stainless steel insert with a density of 45 openings/cm² effectively removes mechanical contaminants.
• Easy Maintenance: The ability to clean the filter without disassembly simplifies maintenance and ensures optimal technical condition.
• Standards Compliance: The filter meets requirements of EN 12266-1 and EN 1092-2, confirming its quality and safety.
• Wide Temperature Range: Operation up to 350°C expands the filter’s application scope.
• Safety: Protects the system from damage caused by contaminants, extending its service life.
• Versatility: Suitable for various media—including water, steam, and other technical liquids.

The 821C mesh filter is a robust and reliable solution for professionals and end-users seeking effective protection of their systems against mechanical contaminants.