1. Brief introduction of compressed natural gas safety break valve
CNG safety pull-off valve, also known as CNG safety pull-off valve, is also called compressed natural gas emergency break-off valve and compressed natural gas emergency release device. The compressed natural gas safety break-off valve is a safety protection device. It is composed of a male valve and a mother valve. They are disconnected under a certain external force. The disconnected public valve and mother valve are automatically closed. There are no natural gas outflows and leaks at both ends of the pipeline. The device is installed on the loading and unloading equipment such as compressed natural gas loading and unloading arms, hoses, gas dispensers, and gas columns to protect these equipment from being damaged under the action of accidental tension and prevent natural gas leakage.
Second, the role of compressed natural gas safety break valve
During loading and unloading of CNG, the following situations may occur:
1. During the loading and unloading of compressed natural gas transport vehicles, accidents such as natural gas leaks and fires suddenly occurred on the site. The compressed natural gas transport vehicles need to escape from the scene quickly, and it is too late to remove the loading and unloading equipment of the gas dispenser and the natural gas transport vehicle. Separate compressed natural gas transportation vehicles from loading and unloading equipment by normal methods;
2. During the loading and unloading of compressed natural gas transport vehicles, due to operational errors or slipping, the compressed natural gas transport vehicles left the refueling space;
3. After the compressed natural gas transportation vehicle loads and unloads the compressed natural gas, forget to remove the loading and unloading arm or hose, and the compressed natural gas transportation vehicle leaves the refueling space.
If the compressed natural gas safety pull-off valve is not installed on the loading and unloading equipment of compressed natural gas loading arms, hoses, dispensers, gas columns, etc., the above situation will cause compressed natural gas transport vehicles, loading arms, hoses, and Gas engine, loading (unloading) gas column and other loading and unloading equipment were pulled, a large amount of flammable and explosive natural gas was leaked, spread in a large area, caused fire, explosion, caused major personal injury and death, equipment damage, major economic loss and environmental pollution, etc. Extraordinary security incident. In order to prevent the above accidents and reduce the accident losses, loading and unloading equipment should be equipped with compressed natural gas safety break valves.
Third, CNG-25-09T compressed natural gas pull-off valve technical parameters
Model number: CNG-25-09T
Nominal diameter: 0.5625 "
Working pressure: 3625PSI (250bar)
Design temperature: -50 ～ + 120 ℃
Separation tension: 600N ～ 900N (the breaking force can be set according to user requirements)
Connection size: NPT1 ″ (connection thread can be manufactured according to user requirements)
Weight: 2.8 kg
Characteristics of CNG-25-09T compressed natural gas break-off valve
The compressed natural gas safety break-off valve is suitable for the hose pipeline of the compressed natural gas filling column or the compressed natural gas loading and unloading arm. It is safe and reliable, and can be reused after manual reset.