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Water Shut-off Valve with Filter INVENA ZK-32-F20 DN-20 (20 mm)
INVENA ZK-32-F20 DN-20 (20 mm) is a water shut-off valve with an integrated mesh filter, designed for domestic and light commercial plumbing systems. The compact inline unit combines shut-off control and particle screening to protect downstream fixtures, appliances and pipework. It fits standard 20 mm connections and provides a simple way to isolate sections of a water supply while trapping sediment and larger debris before they enter taps, heaters or pumps.
This INVENA valve integrates a reliable quarter-turn shut-off mechanism with a maintenance-accessible filter screen, reducing the need for separate fittings. The metal body and serviceable filter offer durability and ease of cleaning, helping to maintain water flow and prevent clogging of appliances. Its 20 mm size ensures compatibility with common domestic copper and plastic pipework and enables straightforward replacement or new installation.
Install the valve in the supply line using compatible 20 mm fittings, observing flow direction if indicated by the manufacturer. Use the shut-off handle to stop water flow for maintenance or repair; then access the filter housing to remove and clean the mesh element. Reassemble the unit and restore supply by returning the handle to the open position. Ensure all connections are sealed and tested for leaks after installation or servicing.
Regularly inspect and clean the filter screen to maintain optimal flow and prevent sediment build-up. Avoid exposing the valve to freezing conditions or aggressive chemicals. For installations in systems with high particulate load, consider additional upstream filtration to extend service intervals.
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