User guide

20-3
Backflow Preventers
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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 are used mainly for OEM-applications, but can also be
used for commercial and industrial 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
Accessories
Backflow preventer, BA195 miniBA
Media Water
Application class (EN1717) class 4
Body material brass, dezincification resistant
Port connection type external threads
Port diameter 3/8 inch
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
• Low pressure loss and high flow rate
• Triple security - two check valves and a discharge valve separate
the backflow preventer into three pressure zones
• Meets KTW recommendations for potable water
Type
BA195-3/8E
Test kit. Electronic pressure measuring device with digital indicator, runs by a battery.
With case and accessories, ideal for inspection and maintenance of backflow
preventer type BA.
TK295
Test kit. Analogue pressure measuring device with differential pressure display. With
case and accessories, ideal for inspection and maintenance of backflow preventer
type BA.
TKA295
Maintenance-set for BA195 type backflow preventers for use with Test kit TK295
resp. TKA295
WS195