Mesh filter model 821C, DN125 PN25, mesh opening 1.6 mm (15 openings/cm²). Body material: gray cast iron. Max. temperature: 350 °C 821C125D43

Mesh Filter for Protection of Systems and Equipment

The mesh filter type 821C is a reliable protective element designed to safeguard installations against mechanical contaminants. Suitable for use with water, steam, compressed air, oil, glycol, and other neutral media, it is widely applied in heating, refrigeration, air conditioning, industrial processes, and power generation systems. The filter’s design enables efficient removal of impurities, protecting sensitive components such as pumps, valves, and heat exchangers from damage and failure.

The filter features a robust construction with a gray cast iron body (grade GGG 40.3 / GJS-400-18), ensuring durability and corrosion resistance. The filter element is made of AISI304 stainless steel, guaranteeing high filtration efficiency and long service life. Thanks to its cleanable design without disassembly, maintenance is convenient and does not require system downtime.

Construction and Application

The filter is equipped with flanged connections with a nominal diameter DN125 and pressure class PN25, enabling easy integration into existing systems. Flanges are machined in accordance with EN 1092-2, and the face-to-face dimension complies with EN 558-1 Series 1. The cover is secured with bolts, ensuring tightness and easy access to the filter element. The mesh screen with a density of 15 mesh/cm² (1.6 mm) effectively captures larger contaminants.

This filter is particularly recommended for applications requiring high temperature resistance — the maximum operating temperature is 350°C. Testing and inspections conducted in accordance with EN-12266-1 confirm its high quality and reliability. Alternative versions are available with different body materials (ductile iron, steel) and various mesh densities (100, 200, 300, 400, and 600 mesh/cm²), allowing customization to meet specific application requirements.