2.3.3
Compatible components
The model is compatible with the Profipress / Profipress XL, Sanpress /
Sanpress XL and Sanpress Inox / Sanpress Inox XL system.
2.3.4
Operating mode
Backflow preventers protect fittings and installation systems against
unintended backflow, back pressure or back suction of the contami‐
nated wastewater or dirty water in the piping system. This can occur
after pressure fluctuations in the distributor circuit, which can cause a
change in the direction of flow.
The backflow preventer prevents the pushing back, backflow or back
suction of liquids, which may be a health hazard, into the public drinking
water network, with the help of a spring-loaded valve cone. The dimen‐
sion is dependent on the peak pressure and it complies with the nom‐
inal width of the pipeline. The backflow preventer must be fitted with
testing equipment.
In many countries, standards and technical guidelines stipulate the use
of backflow preventers or other suitable safety equipment that protect
drinking water against contamination.
2.3.5
Technical data
Observe the following operating conditions for the installation of the
model:
Operating temperature [T
max
]
90 °C
Operating pressure [P
max
]
1.6 MPa (16 bar)
The performance diagram shows the pressure losses (in hPa) in relation
to the volume flow and the nominal width.
300
50
100
10
1
1
2
3
4 5
10
20 30 40 50
100
200 300 500 1000 2000 3000
DN65
DN80
DN100
DN50
∆p [hPa]
V [l/min]
Fig. 1: Performance diagram pressure loss CRV XL slanted seat valve flange connection
Combined backflow preventer (CBP)
Product information
Easytop XL CRV slanted seat valve (combined free flow valve with backflow preventer) with flange connection
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