PVC gas hose is a common hose in daily life. The quality of the hose and the proper use of the hose are directly related to our life safety. As a professional PVC gas pipe supplier, we will introduce you to the PVC gas pipe. Choice and replacement method.
PVC gas hose procurement guide:
1. When purchasing PVC gas hoses, pay attention to whether the wall thickness is uniform, whether there are bubbles, impurities, cracks, sponges and other defects that affect the use. It should be flexible when squeezed by hand, too hard or too soft, which is not conducive to use.
2. The following performance tests can be performed when conditions permit or the test data results are required from the supplier.
Air tightness: When the hose is tested for air tightness at a pressure of 0.1 MPa, it should not leak for 1 minute.
Pressure resistance: When the hose is subjected to the pressure resistance test under the pressure of 0.2 MPa, there should be no leakage or cracking for 1 minute.
Flame-retardant test: the hose is placed in a flame at 800 ° C for 5 seconds to evacuate the flame, and the hose must not burn for more than 5 seconds.
Liquid resistance: The sample in the inner layer of the hose was immersed in No. 120 gasoline at room temperature of 23 ± 2 ° C, and its weight change was not more than 10% within 30 minutes after 24 hours.
PVC gas pipes should be replaced regularly even if their appearance is intact, to ensure family safety.
The method of replacing the PVC gas hose is as follows:
1. First measure the inner diameter of the gas pipe used in the home, and purchase the appropriate hose according to this standard. If the diameter is too large, it will easily loosen the air leakage after installation. If it is too small, it will not be easy to install.
2. In the installation, first close the main valve, remove the old pipe, check whether the air port is free from pollution, then put a new set of clamps on the new pipe and then insert the air port. If the pipe is hard in winter, you can wipe the soapy water.
3. The hose must be inserted into the end, and the clamp should be locked at a suitable distance, that is, the middle part of the metal gas port (can not be stuck on the edge of the hose and slip easily).
4. Finally open the air valve and check if the interface is tight.