ZCRH series normally open manual reset electromagnetic emergency shut-off valveDetailed product description：

ZCRH series household normally open manual reset electromagnetic emergency shut-off valve product usage
The ZCRH series solenoid valve emergency shut-off valve is a new type of gas pipeline safety matching device, which is installed in household gas pipelines and used in conjunction with combustible gas alarms. When there is combustible gas in the surrounding environment of the alarm and it reaches the predetermined concentration
When the temperature is low, the alarm will sound an alarm and provide an emergency cut-off pulse signal, quickly and automatically cutting off the pipeline gas supply to ensure personal and property safety.

Technical Parameters
Product Structure: Direct Acting
Nominal pressure: 1.0Mpa
Working pressure difference: 0~0.05Mpa
Working medium: Non corrosive liquids such as coal gas, natural gas, liquefied petroleum gas, etc
Medium temperature: -15 ℃~60 ℃
Closing time:<1 second
Power supply with nipple and power: 220V/50Hz 4VA
DC24V 3.4VA
DC12V 3VA
Safety level: Ordinary Ex type (add B before the model when ordering)
Control mode: uninterrupted input or pulsed electromagnetic force

Working Principle
The ZCRH series cut-off valve is a normally open pulse triggered solenoid valve with accident self-locking and manual reset functions.
1. Cut off and remain in a normally open state during daily work, with the electromagnetic coil in a short open state and not consuming electrical energy.
2. When an accident occurs, the cut-off valve coil is instantly energized, triggering the cut-off valve to quickly close without automatically reopening.
3. When reconnecting the gas source, manually pull up the reset rod again and hear a "click" sound indicating that the valve has been opened. At this point
Even if released, it will not cut off. Open the valve to restore gas supply.

ZCRH series normally open manual reset electromagnetic emergency shut-off valve structure dimensions and appearance diagram

DN	G	L	H
fifteen	1/2	seventy	ninety
twenty	3/4	eighty	one hundred and ten
twenty-five	one	ninety	one hundred and thirty
thirty-two	1 1/4	one hundred and forty	one hundred and fifty
forty	1 1/2	one hundred and fifty-six	one hundred and seventy
fifty	two	one hundred and eighty	one hundred and ninety