DG27 series products
Liquid heating type silicon nitride ceramic heating element technical index
Rated voltage: 220V-380V, 50/60Hz
Rated power: 1500W-4300W
Insulation electric strength: 2500V, 50Hz at room temperature, no breakdown for one minute
Leakage current: ≤0.025 mA in normal operation, ≤10 mA in water after breaking
Acid corrosion resistance: Boiling 6h in 5% sulfuric acid solution, corrosion rate <10g/m2.h
Alkali corrosion resistance: boiling 30% sodium hydroxide solution 6h, corrosion rate <0.6g/m2.h.
Life: 5000h
Technical indicators:


Room temperature flexural strength


Room temperature fracture toughness

6.0-8.0 Mpa.m1/2

Bulk density


Room temperature volume resistivity


Relative permittivity at room temperature


Thermal conductivity


Thermal expansion coefficient






Mechanical properties:



Fracture toughness(Mpa.m1/2

Flexural strength(Mpa)





This product is a liquid heating type silicon nitride ceramic heating element, suitable medium: Liquid, water, water heater selection within 4300W, water heater selection within 2800W, steam engine selection within 2300W. Can be equipped with "F07A", "F12A", "D14B", "F13C" type package.
Executive Standard: JB/T10320-2002 Silicon Nitride Heating Element for Household and Similar Uses
Liquid heating type silicon nitride ceramic heating element
This product uses high-performance silicon nitride ceramics as the substrate, high-temperature mechanical strength, thermal shock resistance, acid and alkali corrosion, both excellent insulation properties, and good thermal conductivity, plus the company's proprietary formula And hot press manufacturing technology, this product has the following outstanding performance and characteristics:
★Good electrical safety, leakage current is less than 10mA after breaking
★ high surface load, heating liquid surface load up to 70w/cm2
★ Small size, large power
★Small thermal inertia, fast heating
★ long life
★ acid and alkali corrosion liquid heating silicon nitride ceramic heating element application range
It is widely used in instant, direct thermal and water storage, energy-saving fast-type electric water heaters, fast-heating liquid heating, electric cookers, hot and cold drinks machines, air conditioning heaters, air heaters, instant hot water taps, Thermostats, steam generators and other household, industrial, and commercial electric heaters.
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