KNORR-BREMSESystems for Commercial Vehicles
Features� Highly compact product for systems with one pressure level
� Versatile design enables many applications to be coveredfrom the same installation package- optional electronic pressure sensors- optional oil separation- optional time switch
AirProcessing
UnitZB44.. family
Y018
288-
EN-0
00
The f
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cts w
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omm
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ulta
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men
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KNORR-BREMSESysteme für Nutzfahrzeuge GmbH
Moosacher Straße 80 · 80809 Munich · Germany · Tel: +49 89 3547-0Fax: +49 89 3547-2767 · www.knorr-bremse.com · www.knorr-bremsesfn.com
• time switch• relay valve• integral silencer• tyre inflator
• 3 pressure levels• electrical pressure
sensing• integral
check valves
• 2 pressure levels• electrical pressure
sensing• integral
check valves
• 1 pressure level• electrical pressure
sensing
• 1 pressure level• electrical pressure
sensing
• time switch• integral silencer
• remote regeneration• integral silencer• tyre inflator
• remote regeneration• tyre inflator
• time switch or remote regeneration
• oil separator• integral silencer• tyre inflator• monoblock
Air Dryers
AE45 AE48 AE46
Deviationfrom
standardfunctions
Multi Circuit Protection Valves
ZB44
(ZB45*) / ZB47
ZB47
ZB47
(ZB45*) / ZB47
possible withAE flange modification
Functions realized with ZB44
ZB46
ZB46
ZB46
ZB48
possible withAE flange modification
possible withAE flange modification
* ZB47 is the numeric successor of ZB45
ZB44
P r o d u c t I n f o r m a t i o n
LA83
LA84
LA90
ZB44
LA81
The benefits of the modularly designed, different APU familiesresult from the integration of various features and functions. Themain benefits are the reduced costs and reduced installation effortcompared with individual air treatment components. The ZB44 air processing unit offers a solution to fulfil the require-ments of a brake system with one pressure level. Compared with
other Air Processing Units, the primary benefit of the ZB44 is itscompact size – only slightly larger than many stand-alone airdryers. Additionally, the high number of options provided givesthe opportunity to use one installation package for differenttruck and bus applications.
Air dryer and multi circuit protection valve are combined in one “monoblock” housing.
according to DIN-ISO 1219
Standard functions Remark
Unloader valve pre-adjusted
Feed port to regeneration reservoir M12x1.5 or M16x1.5, Voss compatible
Safety valve pre-adjusted
Control port M12x1.5 or M16x1.5, Voss compatible
Cartridge thread M39x1.5 for standard cartridge
Optional functions Remark
Air suspension port M16x1.5, Voss compatible
Time switch pre-adjusted
Heater bayonet – DIN 72585 – 1A2.1-1-Sn/K2/24V – 2 poles
Oil separator -
Silencer external
Tyre inflating port compressor supply pressure
Tyre inflating port regulated pressure
External charging port M16x1.5
Standard functions Remark
Overflow valves pre-adjusted with limited feedback
Optional functions Remark
Exhaust function pre-adjusted reaction pressure controlled by theservice brake delivery circuit 21
Double pressure sensor for circuits 1 and 2, bayonet – DIN72585 – 6 poles
Bypass for overflow valves circuit 1, 2, and 4
Z B 4 4 . . A i r P r o c e s s i n g U n i tAir Dryer Multi Circuit Protection Valve
Ports 21-24 are all M16x1.5 or M22x1.5, Voss compatible.
The benefits of the modularly designed, different APU familiesresult from the integration of various features and functions. Themain benefits are the reduced costs and reduced installation effortcompared with individual air treatment components. The ZB44 air processing unit offers a solution to fulfil the require-ments of a brake system with one pressure level. Compared with
other Air Processing Units, the primary benefit of the ZB44 is itscompact size – only slightly larger than many stand-alone airdryers. Additionally, the high number of options provided givesthe opportunity to use one installation package for differenttruck and bus applications.
Air dryer and multi circuit protection valve are combined in one “monoblock” housing.
according to DIN-ISO 1219
Standard functions Remark
Unloader valve pre-adjusted
Feed port to regeneration reservoir M12x1.5 or M16x1.5, Voss compatible
Safety valve pre-adjusted
Control port M12x1.5 or M16x1.5, Voss compatible
Cartridge thread M39x1.5 for standard cartridge
Optional functions Remark
Air suspension port M16x1.5, Voss compatible
Time switch pre-adjusted
Heater bayonet – DIN 72585 – 1A2.1-1-Sn/K2/24V – 2 poles
Oil separator -
Silencer external
Tyre inflating port compressor supply pressure
Tyre inflating port regulated pressure
External charging port M16x1.5
Standard functions Remark
Overflow valves pre-adjusted with limited feedback
Optional functions Remark
Exhaust function pre-adjusted reaction pressure controlled by theservice brake delivery circuit 21
Double pressure sensor for circuits 1 and 2, bayonet – DIN72585 – 6 poles
Bypass for overflow valves circuit 1, 2, and 4
Z B 4 4 . . A i r P r o c e s s i n g U n i tAir Dryer Multi Circuit Protection Valve
Ports 21-24 are all M16x1.5 or M22x1.5, Voss compatible.
KNORR-BREMSESystems for Commercial Vehicles
Features� Highly compact product for systems with one pressure level
� Versatile design enables many applications to be coveredfrom the same installation package- optional electronic pressure sensors- optional oil separation- optional time switch
AirProcessing
UnitZB44.. family
Y018
288-
EN-0
00
The f
igur
ative
mar
k ”K”
and
the t
rade
mar
ks K
NORR
, KNO
RR-B
REM
SE ar
e reg
ister
ed in
the n
ame o
f Kno
rr-Br
emse
AG.
Subj
ect t
o alte
ratio
n w
ithou
t not
ice. F
or sp
ecifi
c app
licat
ion
requ
irem
ents
and
deta
ils on
the u
se of
our p
rodu
cts w
e rec
omm
end
that
you
requ
est i
ndivi
dual
cons
ulta
tion
and
docu
men
tatio
n. R
epro
duct
ion,
even
extra
cts,
is no
t per
mitt
ed. P
rinte
d in
Ger
man
y. 08
.200
4.
KNORR-BREMSESysteme für Nutzfahrzeuge GmbH
Moosacher Straße 80 · 80809 Munich · Germany · Tel: +49 89 3547-0Fax: +49 89 3547-2767 · www.knorr-bremse.com · www.knorr-bremsesfn.com
• time switch• relay valve• integral silencer• tyre inflator
• 3 pressure levels• electrical pressure
sensing• integral
check valves
• 2 pressure levels• electrical pressure
sensing• integral
check valves
• 1 pressure level• electrical pressure
sensing
• 1 pressure level• electrical pressure
sensing
• time switch• integral silencer
• remote regeneration• integral silencer• tyre inflator
• remote regeneration• tyre inflator
• time switch or remote regeneration
• oil separator• integral silencer• tyre inflator• monoblock
Air Dryers
AE45 AE48 AE46
Deviationfrom
standardfunctions
Multi Circuit Protection Valves
ZB44
(ZB45*) / ZB47
ZB47
ZB47
(ZB45*) / ZB47
possible withAE flange modification
Functions realized with ZB44
ZB46
ZB46
ZB46
ZB48
possible withAE flange modification
possible withAE flange modification
* ZB47 is the numeric successor of ZB45
ZB44
P r o d u c t I n f o r m a t i o n
LA83
LA84
LA90
ZB44
LA81
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