We know acetylene is flammable gas and oxygen is the oxidizer. Thus there will be dangers during the welding work. For example, explosion. Once it happens, it will not only cause pollution. But cause people hurt or even die. Thus the correct use is really matter.
How to use the welding hose correctly
1. Focus on the correct use and maintenance. Keep the hose clean and free from damage. Then avoid exposure to the sun, rain and snow. Besides, prevent the substances that may damage the hose. Such as acids, alkali, oils, etc. The storage temp is -15°C~40°C. While the distance should not be less than 1 meter.
2. When using the new hose, blow out the talcum powder on the inner wall of the hose. Because this can prevent the passage of the welding torch from block. During use, avoid external pressure and mechanical damage. Meanwhile, do not fold the hose.
3. Never mix use and replace oxygen hose and acetylene hose with each other. Do not use the oxygen hose to blow out blockages in the acetylene hose. At the same time, check and eliminate defects such as air leakage and block of the torch at any time. Because this can prevent the the mixture of oxygen and acetylene. If a flashback occurs and fuel enters the oxygen hose, the hose is no longer usable and you have to change a new one. Because the fire will burn the rubber. If you continue to use it, you will lose the normal security. Gas cutting require a large amount of oxygen output. So the valve of the ear tube connected to the high pressure side should be fully opened to ensure sufficient flow and stable pressure. Although the low-pressure gauge has shown the working pressure. The pressure suddenly drops when oxygen is used. At this time, a backfire is likely to occur. Then the oxygen hose may transfer to cause an explosion.