Replacement Controllable Backflow Preventer; Technical Data - Conel Stream Montage- Und Bedienanleitung

9.
REPLACEMENT BACKFLOW PREVENTER
/ Closing the inlet and outlet shut-off valves
/ Opening the test valves [a] and [c] to facilitate disassembly
(Fig. 9.1)
/ Remove the four hexagon socket screws from the housing [d]
/ Removing the cover [b]
(Fig. 9.2)
/ Remove the defective backflow preventer cartridge [e] and replace it with a STREAM
(Fig. 9.3)
BA cartridge corresponding to the nominal diameter (see chapter 12)
/ Installation is in reverse order
/ Opening the inlet and outlet shut-off devices
[a]
Fig. 9.1
10.

TECHNICAL DATA

Technical data
Medium: Potable water
Operating pressure min.
Operating pressure max.
Operating temperature max.
Flow rate Δp 1,5 bar acc. to DIN EN 12729
[d] [c] [b]
Fig. 9.2 Fig. 9.3
Nominal size
10,0
65,0
DN 15
DN 20
DN 25
DN 32 13,0
DN 40 20,3
DN 50 31,8
[e]
2,0 bar
bar
°C
3,8 m³/h
8,4 m³/h
8,6 m³/h
m³/h
m³/h
m³/h
13