Why does the circulation system close the backwater?

The reason for closing the backwater in the circulation system is to make the water inlet pipeline unblocked and let the sewage and sludge in the water inlet pipeline be discharged.

Buried floor heating, the moisture in the pipeline is heavy, and the moisture drainage of floor heating is also very poor. Moreover, the floor heating takes water as the medium, so if the floor heating valve is not closed, the inner wall of the pipeline will easily corrode and rust, and even shorten the service life of the floor heating. But closing the main valve can not only avoid the above problems.

It can also prevent air from entering the pipeline, contacting with microorganisms in water and breeding a large number of bacteria. There will be no congestion in the later period. There is no pressure in the pipeline because the supply of hot water has been stopped during heating. When the valve is closed, you can keep warm in the following winter, and you don't have to worry about sudden pressurization and water leakage.

Extended data:

The use of the circulation system is introduced as follows:

From the safety point of view, closing the valve after stopping heating also has a certain guarantee effect. Usually, some measures need to be taken to prevent air from entering the floor heating system. Especially in the next heating, the main valve should be deflated. Because in the process of water injection in the floor heating pipeline, air will inevitably enter, and if there is air, the temperature of the floor heating will not be very hot.

The filter is a device used to prevent impurities from entering the geothermal pipeline and causing system blockage. The built-in filter screen will increase the resistance of water after the impurities are filled, which will affect the flow rate and heat dissipation. It can be properly cleaned according to the change of room temperature.

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