Fire resistance test furnace for building materials

Technical parameters:

Gas used: methane flow rate （35 ± 0.5）L/min, its purity is greater than 95%, air flow rate （17±0.2）L/min

Specimen size: Each test takes 4 specimens as a group

Thermocouple: nickel-chromium-nickel-silicon thermocouple with a wire diameter of 0.5mm and an outer diameter not greater than 3mm

Furnace wall temperature: Room temperature ——100°C ——1 °C

Intake temperature: 0——50±0.5°C

Pressure difference: 0——30Pa±1Pa

Pressure difference measurement range: 0-100pa, accuracy :0.2%

Temperature recorder and thermostat: multi-channel continuous temperature recording and curve display

Constant temperature: （23±2）°C

Constant current: （10+1）m3/min

Ambient temperature: 19——30°C

Power supply: 380VAC 50HZ

Dimensions of combustion shaft furnace: 1020mmx1020mmx3930mm

Internal size of combustion shaft furnace: 800mmx800mmx2000mm