ZCRB series of gas emergency shut-off valve is a new type of gas pipeline engineering safety equipment, mainly used in the following situations: 1. And flammable gas leak monitoring equipment connected. When the instrument detects the leakage of combustible gas, it automatically and quickly closes the main gas supply valve, cut off the gas supply, and prevent the occurrence of a serious accident in time. 2. Connected with the ultimate temperature (or pressure) safety controller of the thermal equipment. When the temperature or pressure at the detection point within the equipment exceeds the set limit, the gas supply valve will be automatically and quickly closed to stop the fuel supply. 3 and high-rise central fire alarm system connected. When a fire occurs in the building, the gas supply inside the building will be cut off automatically to prevent the gas explosion. 4. BZCK gas emergency shut-off valve is installed in gas supply pipe network of city or factory, which can be centrally controlled in the central control room, remotely controlled and emergency shut down pipeline at the accident site. It is suitable for combustible gas such as gas, natural gas and liquefied petroleum gas. It is widely used in the safety of gas supply pipe network system, gas heat plant, gas boiler room and residential residence. 5. Reliable technical performance; Very low load loss; High safety performance; Excellent energy saving performance; Fast cutting performance is the five characteristics of this series of products. ZCRB / BZCK gas emergency shut-off valve features: 1. The valve in the daily work of the normally open state, the solenoid valve coil is in the power state, does not consume power. 2. When the accident occurs, the instantaneous energization of the valve coil, triggering the valve to close quickly and into the self-locking state. At this point, even if removed. 3. When the staff handle the accident, manually re-open the valve, will resumed supply. 4. The valve adopts the pilot-type valve, open easily, even if the pressure reaches 6bar is also very easy to open, the diameter is greater than DN125, the lever handle, the valve to switch the effort, fast. 5. Note: According to customer requirements can also provide off normally closed emergency shut-off valve. When the valve is cut off, the pipeline leakage troubleshooting, the staff need to manually reset, the manual upward force to lift the reset lever, you hear a "click", indicating the valve is fully open. In this case, it will not be cut off even if you release your hand. (Unless the valve coil is energized again). Note: Manual reset must be operated when the solenoid coil is de-energized. ZCRB / BZCK gas emergency shut-off valve technical parameters: Valve size: DN15-DN350 Protection class: CEIIP65 / IP67 Working pressure: 0.5bar-6bar Explosion-proof grade: EexmllT4 / EexmllT5 Closing time: less than 1 second Sealing material: NBR rubber Operating temperature : -15 ℃ +60 ℃ Body material brass, stainless steel, carbon steel Working voltage: AC: AC24V or 220V AC: DC12V / 8.5W Quality Certification: ISO9001 Applicable medium: gas, natural gas, liquefied gas, gas