Sit 820 NOVA 0820056 gas valve

Gas valve Sit 820 NOVA 0.820.056 (equivalent 900.331.012) Ensure precise and safe gas supply to your heating system with the multifunctional gas valve Sit series 820 NOVA (part number 0.820.056). This automation component combines gas regulation and shut-off functions in one housing, guaranteeing stable burner operation and instant fuel shut-off when the flame goes out. Why choose the Sit 820 NOVA valve: Instant protection. The thermoelectric flame control system instantly blocks gas supply when no heat is detected, eliminating leakage risk. Precise adjustment. Built-in manual flow regulator allows flexible adjustment of gas supply to the pilot burner for optimal ignition. Stable pressure. The servo regulator maintains stable output gas pressure, ensuring even main burner combustion. Reliable construction. Durable aluminum housing resistant to vibration and corrosion, and built-in filters protect the mechanism from contamination. Mains independence. Operates from thermocouple (millivolt power), no need for 220 V mains connection. Fast response. Valve closing time is less than 1 second. Key specifications: Manufacturer: Sit (Italy). Part number (SKU): 0.820.056, 900.331.012. Type: Gas solenoid valve with thermostatic control (series 820 NOVA). Category: Gas valves. Operating pressure: inlet 3–30 mbar, maximum overpressure 60 mbar. Connection type: Rp 1/2". Operating temperature: 0–70 °C. Gas compatibility: Categories I, II and III. Features: silent operation, two built-in filters, manual flow regulator. Suitable for models: The Sit 820 NOVA valve is widely used in floor-standing gas boilers, convectors, fireplaces and infrared heaters. Most