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The PRR series are medium pressure reflux blocking valves (Rückfluss Sperrventil / Rückschlagventil) designed for industrial applications. Available in four nominal diameters (DN15, DN25, DN50, DN100), the PRR series reliably prevents the backflow of gases and liquids to 100%, with inlet pressures up to 40 bar. Suitable for both liquid and gas media, with full ATEX, CE, FDA, and PED certifications. The number in the model name (15, 25, 50, 100) refers to the nominal diameter (DN) of the valve.
| Product type | Reflux blocking valve / check valve |
| Pressure class | Medium pressure |
| Nominal diameters | DN15, DN25, DN50, DN100 |
| Inlet pressure P1 | 1 to 40 bar |
| Temperature range | -20 to 180 °C |
| Material | Stainless steel, Hastelloy |
| Media | Liquids, Gases |
| Certifications | ATEX, CE, FDA, USP VI, PED, Oil and grease free |
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Low pressure differential pressure reduction valve in inline design for industrial and pharmaceutical applications. Controls both gaseous and liquid media.
Contact our engineering team for custom specifications, material options, and technical support for the PRR 15/25/50/100 Medium Pressure Check Valve.
