Auto Water Level Control Float Valve

Dimensions: 9 x 2 x 4.8 cm / 7 x 4.8 x 2 cm / 7 x 4.8 x 2.5 cm (selectable sizes). Lightweight construction enables simple mounting in confined or elevated locations. Entire body and internal mechanism made from food-grade 304 stainless steel — fully compliant with UK WRAS-relevant material standards for contact with potable water. Temperature tolerance: –20°C to 100°C; pressure rating: ≤1.0 MPa (10 kg/cm²), covering all typical UK domestic and light industrial cold water supply conditions. Operates purely by hydraulic force — zero electricity, zero electronics, zero consumables. No adjustment tools required after initial float arm positioning. Functionally, this valve delivers precise, self-regulating water level maintenance: opens when level drops, closes tightly when target height is reached. Its all-metal sealing interface and hardened stem reduce hysteresis and seat wear — delivering consistent performance over thousands of cycles. Unlike rubber-seated or plastic-bodied alternatives, it withstands chlorine, UV exposure, and thermal cycling without degradation. Commonly installed in UK-compliant cold water storage cisterns (including those serving combination boilers), solar thermal expansion tanks, rainwater harvesting header tanks, commercial HVAC feed tanks, and agricultural trough fill systems — especially where hygiene, longevity, and regulatory compliance are prioritised.