Bypass valve FDR hp-Technik 20-E/3, FDR 20-E/3

Bypass (overflow) valve hp-Technik FDR 20-E/3 — original flanged safety valve with adjustment screw for liquid fuel supply systems. Designed for automatic relief of excess pressure and maintaining stable working pressure in fuel lines. Key advantages: Precise pressure adjustment — type E with adjustment screw allows accurate setting of working pressure (stage 3). Flanged connection DN20 — reliable installation in industrial systems, conforms to DIN 2635 PN40. High performance — flow rate 100–2000 l/h, suitable for medium and large systems. Robust construction — body made of high-quality cast iron, internal components resistant to aggressive liquid fuels (diesel, fuel oil, heating oil). Temperature resistance — up to +150°C. Safety — prevents overpressure, protects pumps, filters, and burners from damage. Application: The hp-Technik FDR 20-E/3 bypass valve is ideal for: Medium and high power liquid fuel burners; Boiler houses and fuel supply systems on diesel and fuel oil; Industrial and commercial heating installations; Modernization of hp-Technik pump units (B-GH, FDR 20 and similar). Why choose the FDR 20-E/3? Original product from German manufacturer hp-Technik — a recognized leader in liquid fuel equipment. Ensures stable pressure and reliable protection of the entire system. Significantly extends the service life of pumps, filters, and burners. Simple adjustment and durable operation in harsh conditions. Bypass valve hp-Technik FDR 20-E/3 (DN20) — a professional solution for stable and safe operation of your liquid fuel boiler house.