Dirt strainer, Stainless steel - Riegler K981

Dirt strainer, Stainless steel. This range covers 8 variants from 61.30 EUR. Select the version you need above.

Available variants

Shared technical data

About Strainer and spare parts

Strainers hold particles back before they reach valves, pumps or meters. The group covers DN 8 to DN 100 with maximum operating pressures from 16 to 40 bar.

What matters when choosing

• Housing material follows the medium and the surroundings. Bright brass, nickel-plated brass and gunmetal are intended for water supply, heating, air conditioning and compressed air systems, while stainless steel 1.4401 / 1.4408 and CF8M suit installations that need more corrosion resistance.
• Nominal width and thread follow the pipework. DN 8 to DN 100 is available with threads from G 1/4 through G 1/2 and G 1 up to G 4, plus Rp 3/8.
• Maximum operating pressure runs from 16 to 40 bar depending on the version and has to match the design pressure of the pipe system.
• Sealing is available as an NBR O-ring, an FKM (FPM) O-ring or in PTFE. Medium and temperature decide which of them applies.
• Operating temperature starts between -25 °C and -10 °C and ends between 110 °C and 180 °C depending on type, with a maximum medium temperature of 180 °C.

Typical applications

• Protecting control valves, pumps and water meters in building services
• Heating and air conditioning circuits carrying rust and residues out of the pipework
• Compressed air systems upstream of sensitive valves and measuring points
• Cooling water circuits on machine tools and power units
• Stainless steel process lines where the housing has to match the pipe material

Threads are made to DIN EN ISO 228-1, some of them to tolerance class B. According to the manufacturer the brass-bodied versions are not suitable for steam.