In terms of quality, rubber and plastic are good. The density of rubber and plastic pipes is more than 30 kg. Their resistance to bending, toothing, aging and thermal conductivity is better than that of polyethylene. Press the insulating pipe with your hands to perform an elasticity test. The rubber and plastic pipe can basically return to its original shape after being squeezed several times, while the polyethylene pipe is difficult to return to its original shape after being squeezed once and made an obvious dent. By performing tear tests by hand, the tensile strength of rubber and plastic is also significantly better than that of polyethylene. As both are plastic products, protective measures such as calendered film packaging are necessary for outdoor use to increase their lifespan.
How to disassemble the hard insulation pipe and replace it if the solar water heater water pipe freezes and cracks
There are four methods:
1 . Cover the pipe with thick PET insulating pipe;
2. When not in use at night, let the faucet drain slowly to prevent freezing;
3. Attach a solar companion (heating tape). ) to the pipe and connect it;
4. To drain water from the pipe, you can ask the manufacturer to install a drain valve.
Simply use a knife to cut the insulation pipe lengthwise. There are two ways to install the insulation pipe on the market:
The first is to directly penetrate the water pipe into the insulation. Pipe. Generally, you only need to remove the joint connecting the solar energy, remove the insulation pipe, and directly replace the water pipe after replacing it, insert the water pipe into the water pipe isolatedation.
The second method is to directly cut the insulation pipe lengthwise, then wrap the water pipe, fix it with tape, and finally wrap it with Aluminium foil. So when changing the water pipe, you can directly cut the water pipe. Insulation pipe and replace the water pipe. Just wrap it with tape and foil.
If you do not want to replace the insulating tube, you can choose between two methods. If you want to replace the insulation together, just use a knife to cut the insulation tube.