Collectively called check valves, they are divided into one-way check valves and two-way check valves, and there are material choices too!
Recommend "Dr. Sun" solar energy and Sancang solar energy (no need for water level probes and solenoid valves). Heating and hot water usage rates are fast in rainy weather, as is after-sales service. The rate is also significantly reduced, saving time and energy. This model only takes 20-30 minutes to heat without the sun, while the single-bay three-way solar heater takes 2-3 hours!
1. Installation of the pipeline
To prevent hot water from flowing back, a check valve must be installed in the pipeline. The water line is connected to the faucet location. water and installed in a vertical direction to ensure that the arrow pointe upwards in the same direction as the tap water. All pipes to be blocked must be securely secured with appropriately sized hose clamps. The ball valve should be installed 1 meter away. the junction of the solar hot water system pipe and tap water
2. Pipe insulation
It is recommended to use high-quality polyurethane and rubber as insulation materials or polyethylene material (wall. thickness 20-50 mm), easy to install and dismantle , does not absorb water, has low thermal conductivity and good dimensional stability. After testing the water in the pipe, install the heating cable and then insulate it with antifreeze >3. p>
In areas with low temperatures and easy frost, closed balcony pipes should be added to increase the anti-freeze properties of the heating cable. The heating cable has anti-aging, self-limiting temperature and speedQuick Start. , low operating cost, easy installation and maintenance, strong thermal stability, etc.
Detailed information
Daily maintenance of solar water heaters:
< p>1. When installing a solar water heater, there may be a smell of dust or oil in the water pipe. When using it for the first time, you can first open the faucet to remove debris.2. The water stored in the solar water heater should be determined based on the local location. Drain regularly depending on water quality conditions. Drain time can be selected in the morning when the sensor temperature is lower
4. When hot water is not used for several consecutive sunny days, the hot water temperature will be very high. Please use the solar water heater first, then turn on the hot water. to avoid burns.
This means that when installing a solar water heater for domestic use, there is a tee on the water supply pipe and the cold water part must be closed. So there is a three-way product on the market with a check valve on one end. This is a combination product of a three-way valve and a check valve.