KEMPER ’Protect’ BA backflow preventer
based on DIN EN 1717
Securely stops polluted water
DIN EN 1717 establishes a uniform standard for drinking water installations to secure drinking water from non-potable water Europe-wide. This standard differentiates the application areas for protection valves and defines the permissible fluid categories. As a result, along with water works / water authorities, especially planners and plumber are exposed to an increased liability risk. The return flow of non-potable water or other substances from a defective appliance into the drinking-water supply system can be effectively prevented by installing a safety device, however. Kemper supplies an absolutely safe, technically mature solution for that. The new KEMPER Protect BA backflow preventer, Figure 360, protects drinking water from non-potable water up to and including fluid category 4 - and that with integrated dirt trap, in a short mounting frame, lightweight and easy to handle.
Benefits at a glance
- Price advantage through light weight, short length and advanced engineering
- Pressure-controlled protection cartridge made from one assembly group contributing to easy replacement for the specified maintenance
- Integrated dirt trap
- System-pressure independent
- No drain valve dripping during pressure fluctuations
- Stylish design
- All parts that have contact with fluid (drinking water) made of gunmetal or
plastic, springs made of stainless steel - Stagnant-zone-free
- Integration of the BA backflow preventer underneath the highest-possible
waste-water level permitted - With DVGW and sound insulation approval
Easy maintenance –
Trust is good, verification even better
According to DIN EN 1717, there is an obligation to perform regular maintenance for the BA backflow preventer. Accordingly, maintenance contracts between operators and plumbers or manufacturers need to be concluded.
Prescribed maintenance cycles
According to W/TPW 135, Appendix I, after the 1st year of operation, then periodically depending on the type of installation and operating conditions, but latest after 2 years.
Scope of test
- Test the functioning of the input and output anti-pollution check-valve and the drain valve
- Test the state of the differential-pressure controlled cartridge with integrated dirt trap
Fast and simple maintenance
The integrated dirt trap and the differential-pressure controlled protection cartridge can be easily removed by opening the head-part. The output-side anti-pollution check-valve can also be replaced as necessary by opening the head-part with a twist of the wrist. That makes maintenance fast and effortless and is done in a jiffy.