Emergency shut-off valve principle Yongjia County Tianhong valve shut-off valve series products: emergency shut-off valve, gas shut-off valve, quick shut-off valve, pneumatic shut-off valve, electric shut-off valve function: control the cutting, switching or switching of fluid in the process pipeline.
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Emergency shut-off valve principle Yongjia County Tianhong valve shut-off valve series products: emergency shut-off valve, gas shut-off valve, quick shut-off valve, pneumatic shut-off valve, electric shut-off valve function: control the cutting, switching or switching of fluid in the process pipeline.
Features: Emergency shut-off valve has excellent technical performance, low load loss and high reliability. It is suitable for flammable gases such as gas, natural gas and liquefied petroleum gas. It is widely used in gas pipeline network systems, gas heat plant workshops, gas boiler rooms and residential facilities. Valve function and working principle: The gas emergency shut-off valve is a normally open pulse-trigger type solenoid valve with accident self-locking and manual reset function.
Other technical parameters note:
(1) The price of the shut-off valve varies depending on the caliber, material and pressure, and the price is not announced!
(2) Connection form: flange (3) transmission mode: pneumatic, electric, hydraulic (4) caliber from DN15-DN300; pressure from 1.0MPA-16MPA; temperature -20 °C-600 °C
(5) Materials are: carbon steel, stainless steel
Shut-off valve application:
A. It is connected with the flammable gas leakage monitoring instrument. When the instrument detects the leakage of flammable gas, it automatically closes the main air supply valve quickly, cuts off the supply of gas, and timely stops the occurrence of a vicious accident.
B. It is connected with the limit temperature (pressure) safety controller of the thermal equipment. When the temperature (pressure) of the detection point in the equipment exceeds the set limit value, the gas supply valve is automatically closed quickly to stop the supply of fuel.
C. It is connected with the central fire alarm system of the high-rise building. When a fire occurs in the building, the gas supply in the building is automatically cut off to prevent the gas explosion.
D. The ZCR gas emergency shut-off valve is installed in the gas supply pipe network of the city or factory, which can be centrally controlled in the central control room, and the remote control emergency shuts off the pipeline supply at the accident site.
working principle:
The valve is normally open during daily work, and the solenoid valve coil is in a de-energized state and does not consume electrical energy.
When the accident occurs, the valve coil is energized instantaneously, triggering the valve to close quickly and enter the self-locking state. At this time, even if the power is removed, the valve is still in a self-locking state and will not automatically re-open.
The ⊿ valve adopts the pilot-operated valve flap, which is easy to open. Even if the pressure reaches 6bar, it is very easy to open. The diameter is larger than DN125. The lever handle is used to make the valve reach the labor saving and fast.
When the staff handles the accident and manually reopens the valve, the gas supply will be resumed. Note: The normally closed emergency shut-off valve with power-off is also available upon request.
If you need emergency shut-off valve, you can call Yongjia Tianhong Valve to contact fax.
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