RDFH10.5

solenoid valve

1、 Purpose:

Used on gas appliances such as liquefied petroleum gas, natural gas, and artificial gas as fuel (gas stoves, gas heaters, gas ovens, ovens, and other household and industrial gas appliances), it is a flameout protection device composed of sensing elements as a control element. It has the characteristics of no external power supply, stable performance, and long service life!

2、 Working principle:

a、 When the flame of the combustion device burns, the sensing element thermocouple is heated by the flame to generate current, which keeps the iron core and armature of the solenoid valve in a suction state, maintaining normal gas supply to the gas channel.

b、 When the flame of the combustion device goes out, the current generated by the thermocouple decreases, causing the iron core and armature of the solenoid valve to loosen, cutting off the gas path and preventing the gas from escaping

Performance requirements:

1. This product is suitable for artificial gas LPG、 Natural gas and other types of gas

2. The main coil valve opening current is ≤ 100mA, and the main coil trap valve current is ≥ 20mA

Secondary coil valve opening current ≤ 30mA, secondary coil valve closing current ≥ 3mA

At room temperature of 20 ℃, the internal resistance value of the main coil is 28 ± 10% m Ω,

The internal resistance value of the secondary coil is 2.5 ± 10% Ω

4. Full compression spring force 2.6N ± 10%

5. Temperature range for use: -10 ℃ to+80 ℃

At room temperature of 20 ℃ and pressure of 15KPA, with the solenoid valve closed, the allowable leakage rate is less than 0.02cc/min

7. The compression value of the solenoid valve is 29.1 ± 0.4mm, and the free length is 33 ± 0.6mm

After 30000 cycles of suction life testing, there was no performance change

The classification code of solenoid valves consists of three parts: main name, classification characteristics, and modification number, which are divided into four categories.