Check Valve
Wholesale Supply DIN JIS ANSI Non Return True Union Check Valve Flap Check Valve
Products Feature
1)Compliant with drinking water standards.
2)The material undergoes nano modification to improve the product's pressure resistance and impact resistance.
3)Adding anti UV absorbers and antioxidants to raw materials to improve product weather resistance and aging resistance.
4)Can be installed horizontally or vertically.
PVC true union check valve products are acid, alkali, and high-temperature resistant, widely used in various industries such as chemical industry, wastewater treatment, power plant construction, PCB production line, heavy acid and alkali industry, and water purification engineering.
The new hemisphere with guide rail design ensures that the hemisphere does not tilt and has excellent water stopping effect.
The connecting parts on both sides of the product are designed in a flexible joint form, which is convenient for installation and replacement.
The product is a fully plastic product without any metal accessories.
What is the function of check valve?
1. Prevent the medium from flowing backwards
Check valve has only one flow direction, that is, only along the direction of the inlet flow, to prevent water from flowing in the opposite direction. Flowing medium from the inlet side (lower side) into, from the outlet side (upper side) out. When the inlet pressure is greater than the weight of the valve and its flow resistance and when the valve is opened. Conversely, when the medium flows backwards, the valve is closed.
2. Prevent pump and drive motor from reversing
Check valve is automatic work, in a direction of flow of fluid pressure, the valve flap open; fluid flow in the opposite direction, by the fluid pressure and the valve flap of the self-gravity of the valve flap act on the valve seat, thus cutting off the flow.
3. Prevent container medium leakage
Check valves can be used to give pressure may exceed the system pressure of the auxiliary system supply pipeline. They are used in pipelines where the medium flows in one direction, allowing the medium to flow in only one direction to prevent accidents.
What happens without a check valve?
1) Water pumps without check valves can cause water pipes to burst
Water pumps are not installed check valve, when the pump stops working, the water flow will flow back, and some pipes are unidirectional, do not have the return function, in this case the backflow of water will form a pressure, increase the pressure of the pipeline, and may even burst the water pipe, bringing unnecessary trouble and loss to the tenants.
2) The pump is not equipped with check valves will cause reflux pollution
Water pumps are not equipped with check valves, when the pump is working, the water flow can still be normal flow, but when the pump stops working or not running smoothly, the pump can not guarantee the one-way flow of water. In this case, the sewage will backflow into the clean water pipes, leading to water pollution and posing a threat to the health of householders. At the same time, due to the entry of backflow water, it will also cause the accumulation of sediments in the pipe, affecting the life of the water pipe use.
3) The pump does not install check valve will waste energy
Water pumps not installed check valve means that in the implementation of the process will waste a lot of energy, impede the unidirectional flow of water, need to constantly consume energy to flow, will waste some unnecessary electricity.
In order to avoid the above mentioned hazards, we should make sure that when installing the water pump, we should check whether the check valve is installed or not, in order to make sure that the flow of water will not flow backward and cause the related problems.
Specification
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