Key benefit: Prevents pressurerelated damage in closed heating systems by reliably releasing excess pressure, protecting boilers, heat exchangers, pumps, and piping. Pressure control: Diaphragm safety valve designed to operate effectively within a 3–6 bar range, helping maintain stable system pressure and reducing the risk of leaks, burst pipes, or component failure. Durable construction: Pressed brass and alloy body built to withstand temperatures and continuous operation, making it suitable for longterm use in residential heating and solar water heater systems. Automatic drain relief: Integrated mechanism opens automatically at critical pressure to safely discharge excess water through the drain, minimizing manual intervention and preventing pressure buildup. Standard compatibility: 1/2 inch connection fits most existing pipework for quick retrofits or installations; compatible with common closed heating system layouts to reduce installation time and complexity. Easy integration: Compact design and standard thread size simplify replacement of existing safety valves or addition to systems without extensive plumbing modifications. Typical applications Domestic closedloop central heating systems — provides primary overpressure protection for boilers and radiators. Solar water heater installations — offers longterm pressure relief for thermostatically heated solar storage tanks and circulating loops. Small commercial or workshop heating circuits — protects pumps and heat exchangers in compact closedloop systems. Technical highlights Operating pressure range: 3–6 bar Actuation: Automatic diaphragmoperated relief with drain discharge Material: Pressed brass and alloy construction for temperature durability Connection size: 1/2 inch standard fitting Why choose this valve Protects equipment and reduces maintenance costs by preventing pressurerelated wear and failures Robust materials and diaphragm design ensure reliable operation under continuous use Standard sizing and automatic operation make it a practical, loweffort upgrade or replacement for most closed heating applications