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Backflow preventers
Not everyone immediately thinks of a backflow preventer – you may not even know you have one! But they are super important: they prevent polluted water from flowing back into the water supply network. Because believe me, no one wants an unexpected taste surprise at a different tap.
With a backflow preventer, such as a check valve, water only flows in one direction. It’s simple: water in the right direction? Valve open. Water back? Valve closed. Problem solved.
When do you need a backflow preventer?
Actually anywhere where there is a risk of polluted water going back into the pipe. Think of:
- At home : central heating system, washing machine, dishwasher, and even coffee makers that are connected to the water supply.
- Industrial : Large machines or equipment that are directly connected.
Installing a check valve is a small effort, but it prevents a lot of misery. And hey, better safe than sorry, right?
For (technical) information click here or
DN stands for the internal dimension in mm.
PN stands for the pressure class in bar.
BI stands for internal thread, 3/4BI is for example 3/4 inch internal thread (colloquially, but incorrectly, also called inch)
BU stands for external thread, 1/2 BU is for example 1/2 inch external thread