Dewar bottle sealing is particularly important, any leakage may lead to the loss of gas, if the load is natural gas or perhaps flammable gas, it is likely to occur the risk of bursting, so the leak detection on the Dewar bottle (welding insulation gas cylinder) is very necessary.

There are usually two forms of Dewar bottle inspection. The helium leak detector is connected to the vacuum system. Since the HLT550 does not have a pre-stage pump, it can be used as the pre-stage pump of the helium leak detector by using the vacuum system on site. It is best to connect to the inlet port (i.e. the inlet port of the vacuum pump group), the vacuum system will have a pump group pumping vacuum, so the leak detector is connected at the inlet port of the pump in the direction of airflow movement, it is easy to have part of the partial pressure divided to the leak detector, and then reach the role of leak detection.

Dewar bottle can do a good job of insulation and heat preservation, do not need to rely on other external equipment or power and other equipment to work properly, its use and the traditional use of cylinders is the same.

Dewar bottle using the interface for five-eighths of an inch, the same as the traditional cylinder interface, can be connected to the universal gas regulator. The Dewar bottle requires only one person to operate from connection to start using, and the whole process takes about 3 minutes. Based on the monthly use of 10 cans, the total time to change gas cylinders is 30 minutes. The whole process from connection to use of conventional cylinders takes about 3 minutes. Calculated by using 300 bottles per month, the total time of changing gas cylinders is 900 minutes.
The use of Dewar bottles greatly improves the labor efficiency of workers and reduces the labor intensity of workers. High safety, neat and beautiful working environment Dewar bottle is filled, the pressure inside the bottle is between 0~0.05MPa when it is not in use according to the vacuum degree, and the highest working pressure is 1.6Mpa when it is in use, meanwhile Dewar bottle is equipped with 3 protection pressure reducing devices. The safety performance is very high.

Even if an accident occurs, the most serious consequence is that the liquid inside the bottle is discharged in the form of gas, which will not cause casualties and property losses. Traditional cylinders, when filled, have a pressure between 13 and 13.5 MPa (about 130 kg to 135 kg), which is a high-pressure cylinder, and are equipped with only one measure of safety protection. In the high temperature environment is prone to danger, and once the explosion occurs, the consequences are devastating. Low procurement cost Compared with the use of traditional cylinders, the procurement cost of using Dewar cylinders is about 20% lower.