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Check valves
What is the use of check valves in construction?
A check valve is a one-way fitting component used to prevent fluid returns inside pipes, with waste water or rainwater for example. As the fluid can only run in one direction, and as the flow is blocked in case of a backflow, the role of a check valve is to protect systems and equipment from these types of backflows, preventing them to cause damage inside buildings.
Where are check valves used in construction?
Check valves are very widely used on all types of networks in construction, to prevent the flow to change direction: heating, drinkable water, hot water and cold water, water grids and networks... Check valves are usually installed on domestic individual discharge points, such as main collectors, sinks and basins, shower trays, washing-machines, heating overflows for example.
Syveco’s offer
The check valves available in our range are 3/8’’ à 4’’ in size depending on the models and boast the following features:
- Spring check valves: brass body, NBR seat, nylon or brass clack, ACS certification, BSP threaded connections. Economical range and European-made range (Barberi® and Itap® ranges)
- Swing check valves: brass body, metal, EPDM, or NBR seat, with cap for easy access and periodic cleaning
- Vertical lift check valves: bronze body, PTFE or metal seat, union cap for easy maintenance and cleaning
- Foot valves: brass body, nylon or brass clack, NBR gasket, brass or stainless-steel strainer This type of system is generally used to keep a water column and to protect a dry-installation pump suction.