What is an antifouling block valve
Antifouling block valves are generally composed of two check valves and a drainer. In the normal state of water flow, the medium flows from the inlet to the outlet, and the valve disc of the two check valves opens under the action of water flow pressure, so that the water flow passes smoothly.
When backflow occurs, the water pressure causes the disc of the check valve to close, preventing the reverse flow of water. At the same time, the drainer will discharge impurities such as sewage that may accumulate between the two check valves to prevent it from returning to the upstream clean water body, thereby preventing the function of sewage backflow pollution.
So, what are the advantages of antifouling block valves?
1. Good anti-fouling effect
Through the combination of two check valves and drainers, it can effectively prevent the reverse flow of sewage and ensure that the water is not polluted.
High reliability: the structure is relatively simple, there is no complex electronic components, etc., the mechanical parts are durable, and can work stably for a long time under normal conditions of use.
2. Easy maintenance
Daily maintenance is mainly to regularly check the sealing performance of the valve disc and the patency of the drainage device, and the maintenance cost is low.
Wide range of application: It can be applied to a variety of different water quality and working conditions, whether it is domestic water or some industrial water systems can play a role.
Antifouling block valves are suitable for many systems, such as:
1. Urban water supply system
In the municipal water supply network, the sewage backpouring into the clean water network caused by the pressure fluctuation of the network is prevented.
2. Building water supply and drainage system: used for domestic water pipes in buildings to ensure that drainage such as sanitation appliances will not pollute the water supply pipes.
Industrial water treatment system
In some industrial production processes with high water quality requirements, such as pharmaceuticals, food processing, etc., to prevent sewage from entering the production water system.
3. Fire protection system
Ensure the cleanliness of fire water, prevent the water in the fire pool from being polluted, and ensure the reliability of fire water in emergency situations such as fire.
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