Sit 400 M1 0400006 gas valve

Gas thermostatic valve Sit Sigma 400 M1 (part number 0.400.006, analog 900.331.007) Ensure precise control of gas supply and safe operation of your heating system with the thermostatic gas valve Sit model 400 M1 (part number 0.400.006). This automation element serves as a key link in the fuel supply chain, automatically regulating gas flow depending on temperature and providing instant shut-off when the flame goes out. Why choose the Sit 400 M1 valve: Reliable gas control. The built-in safety mechanism is powered by a thermocouple and instantly shuts off the gas when heating stops (gas control). Precise regulation. The thermostatic function allows maintaining a set temperature regime, saving fuel and increasing comfort. Universal connection. Equipped with threaded fittings, a thermocouple ferrule, and a pilot ferrule — ensures compatibility with various system components. Mains dependency. Guarantees clear operation and no valve sticking. Italian quality. Manufacturer Sit (Italy) guarantees manufacturing precision and long service life. Key features: Manufacturer: Sit (Italy). Part number (SKU): 0.400.006, 900.331.007. Type: Thermostatic gas valve (series 400, modification M1). Category: Gas valves. Operating parameters: opens at current less than 200 mA, closes at current more than 40 mA. Maximum inlet gas pressure: 150 mBar. Connection: Rp ¼ (ISO 7-1:1982). Network connection: M8x1. Operating temperature range: 0–80 °C. Gas used: Categories I, II, and III. Compatible models: The Sit 400 M1 valve is widely used in gas boilers and water heaters using Sigma series automation. Compatible with most wall-mounted and floor-standing boilers where required.