Easy installation - 1 inch thread connection and 3/4 inch 6 bar thread connection match standard fittings, enabling straightforward assembly. No complex installation required. Safety valve - High-quality heat-resistant rubber seal provides a reliable seal and safe operation under overpressure conditions. When pressure rises, it displaces the required liquid to compensate for the internal pressure and protect the boiler. Bleed valve - Automatic air vent for heating systems. When air accumulates in the float chamber, the float sinks and opens the valve, creating a continuous cycle that prevents air pockets, reduces noise, minimizes wear, and maintains efficient system performance. Pressure gauge - Each gauge is tested for accuracy and tightness. The shatterproof lens and steel housing ensure durability. A highly visible scale with a red indicator hand allows easy, direct reading of system pressure up to 6 bar. Premium material - Constructed from brass for durability and corrosion resistance. The one-piece design and thickened body provide extra rigidity and long-term reliability in harsh working environments. Use scenarios - Residential heating systems: install on a boiler or heater circuit to maintain safe pressure, vent trapped air, and improve efficiency. - Commercial or light industrial boilers: ensure reliable overpressure protection and automatic air venting in active heating installations. - Retrofit or replacement: upgrade existing safety valve assemblies with a robust brass unit that is resistant to corrosion and designed for long life.