User guide

20-4
Backflow Preventers
http://products.ecc.emea.honeywell.com/europe
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Backflow preventers of this type are suitable for the protection of drinking water systems against back
pressure, back flow and back syphonage. They can be used for residential buildings, industrial and
commercial purposes within the scope of their specification. Fluids up to and including liquid category
4 to EN 1717 are protected.
Standard version, with threaded connections
Standard version, without connection fitting
Backflow preventer compact construction with threaded connectors, BA295
Approvals • DIN/DVGW-approved for connection sizes 1/2" - 2"
• SVGW-approved for connection sizes 1/2" and 11/4"
• KIWA-approved for connection sizes 1/2" - 2"
• ICIM-approved for connection size 1/2"
• NF-approved for connection size 1/2"
• Approved according to EN12729
Media Water
Application class (EN1717) class 4
Body material red bronze RG5
Max. media temperature 65
o
C
Static pressure PN10
Minimum inlet pressure 1,5 bar
Mounting position horizontal
Additional description • Optimal protection of the drinking water supply network
• Integral inlet strainer
• Inlet check valve and discharge valve are combined in one
cartridge
• Minimal maintenance required, because the valve cartridge is
completely replaceable
• Optimized design prevents water stagnation
• Compact construction
• Easy access to all internal components
• Low pressure loss and high flow rate
• Triple security - two check valves and a discharge valve separate
the backflow preventer into three pressure zones
• Noise tested to class 2
• Meets KTW recommendations for potable water
Port connection type Port diameter DN size Flow capacity Kvs Type
inch mm
external threads 1/2 15 3 BA295-1/2A
external threads 3/4 20 3,5 BA295-3/4A
external threads 1 25 4 BA295-1B
external threads 1 1/4 32 8,7 BA295-11/4B
external threads 1 1/2 40 13,6 BA295-11/2A
external threads 2 50 21,2 BA295-2A
Port connection type Port diameter DN size Flow capacity Kvs Type
inch mm
–––3 BA295-1/2E
–––3,5 BA295-3/4E
–––4 BA295-1E
–––8,7 BA295-11/4E
–––13,6 BA295-11/2E
–––21,2 BA295-2E