The Danfoss AVDO Automatic Bypass Valve (003L6115) is a self-acting constant flow valve with straight external threads and included fittings. Designed for efficient heating system performance, it ensures consistent flow, protects pumps, and maintains system pressure for smooth and reliable operation.
The Altecnic Eres 22 mm angled automatic bypass valve (ER‑22MMANGBI) ensures stable flow in central heating circuits by opening on rising differential pressure. This differential bypass valve helps protect your pump and system when radiator valves close, with a 1–5 m head adjustment range and a rugged chrome-plated brass build rated to 10 bar and 100 °C.
The Altecnic Eres 22mm Straight Automatic Bypass Valve (ER-22MMSTRBI) helps maintain stable water flow and prevent pump over-pressurisation by opening automatically when system pressure rises. Designed for modern central heating systems, it features an adjustable differential setting and a durable brass construction. Its straight 22mm design allows quick installation while ensuring efficient system protection and consistent performance.