©Endress+Hauser
Specs at a glance
Process temperature
0 to 85 °C (32 to 185 °F)
Process pressure
For manual assembly operation : max 2bar (29psi)
Field of application
Cleanfit CUA451 is a retractable assembly for all fields of turbidity and suspended solids measurements. It is equipped with a stop bolt, O-ring seals and a ball valve, enabling complete separation of process and sensor compartment. This allows you to access the sensor without interrupting the process or emptying the pipe or tank. Better still, benefit from increased process and operational safety and significantly reduced maintenance effort across the whole measuring point.
The Cleanfit CUA451 is a retractable turbidity assembly for:
Wastewater treatment plants:
Drinking and process water:
Filter monitoring and filter backwash
Utilities of all industries:
Benefits
One assembly for all applications: The 'one for all' principle optimizes stockholding, speeds up project handling and simplifies life cycle management.
Easy and safe maintenance: Sensor service and cleaning without process interruption.
Robust design: Process pressure up to 10 bar (145 psi), manual operation up to 2 bar (29 psi).
Convenient and time-saving operation: Rinse-water connection allows cleaning without removing sensor from the process.
Success stories
An automated system for pH measurements at AVR
AVR Waste in Botlek, Rotterdam, processes up to 1.7 million tons of residual waste per year. Discover how they optimized their pH measurement thanks to Endress+Hauser
Read the full story
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Highly functional and convenient
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Specialized products
Designed for demanding applications
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FLEX selections
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Meet your basic measurement needs
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Handle your core processes easily
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Optimize your processes with innovative technologies
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Master your most challenging applications
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About us
No assembly, no measurement!
The safety and operating comfort of an analytical measuring point starts with using the right assembly. Our flexible assembly production ensures that you get the right assembly for your needs.
More information
Measuring principle
Single beam scattered light
Application
- Primary sludge and return activated sludge in sewage treatment plants.- Sludge centrifuge monitoring- Filter monitoring and filter backwash- Monitoring of phase break processes.- Cooling water monitoring.
Installation
Manual retractable holder with ball valve for pipe or bypass installations.
Characteristic
- Cleaning possible in every operation mode due to rinse water connection.- Sensor monitoring and calibration without process interrupt.
Design
Manual retractable holder with rinse water connections and external cleaning system. Rinse water connection can be used as sealing water inlet.
Material
Holder : stainless steel 1.4404Sealing : Viton
Dimension
Immersion depth : 170mm or 270mm
Process temperature
0 to 85 °C (32 to 185 °F)
Process pressure
For manual assembly operation : max 2bar (29psi)
Connection
Process connections : Flange DN50/PN16; ASME 2"/150lbs; G2";Rinse water connections: 2x G1/8; Air supply: 9mm tubing.
Most downloaded
Cleanfit CUA451
English version - 02/2021
Manually operated retractable assembly for water, wastewater and process
media
EN
DE ES FR IT JA PL PT RU ZH
18/02/2021
31/01/2019
23/09/2014
01/11/2003
01/03/2003
Language:
English
Version:
18/02/2021
File size:
779.3 KB
File name:
TI00369CEN_1521.pdf
Cleanfit CUA451
English version - 02/2021
Retractable process assembly
EN
BG CS DA DE EL ES ET FI FR HR HU ID IT JA KO LT LV NL NO PL PT RO RU SK SL SV TH TR ZH
18/02/2021
30/11/2018
23/09/2014
01/04/2006
01/11/2003
Language:
English
Version:
18/02/2021
File size:
1 MB
File name:
BA00369CEN_1521.pdf
6 documents
Manually operated retractable assembly for water, wastewater and process
EN
German Spanish French Italian Japanese Polish Portuguese Russian Chinese
18/02/2021
31/01/2019
23/09/2014
01/11/2003
01/03/2003
Language:
English
Version:
18/02/2021
File size:
779.3 KB
File name:
TI00369CEN_1521.pdf
Retractable process assembly
EN
Bulgarian Czech Danish German Greek Spanish Estonian Finnish French Croatian Hungarian Indonesian Italian Japanese Korean Lithuanian Latvian Dutch Norwegian Polish Portuguese Romanian Russian Slovak Slovenian Swedish Thai Turkish Chinese
18/02/2021
30/11/2018
23/09/2014
01/04/2006
01/11/2003
Language:
English
Version:
18/02/2021
File size:
1 MB
File name:
BA00369CEN_1521.pdf
Operating Instructions
OUA451
Retractable Process Assembly
Language:
English
Version:
17/12/2014
File size:
869.9 KB
File name:
BA01366OEN_0114.pdf
SD CleanFit Servicekits / Spare part kits
CleanFit Wechselarmaturen / Retractable assemblies
Language:
English
Version:
01/07/2003
File size:
1.6 MB
File name:
Sd096ca2.pdf
Product root: CUA451-
Language:
English
Version:
07/12/2018
File size:
261.2 KB
File name:
HE_01079_01.18_PED_CUA451.pdf
Prozess-Wechselarmatur für Trübungssensoren zur In-Line-Messung in
Language:
German
Version:
30/08/2012
File size:
22 KB
File name:
TTCUA451DE.doc
Search spare parts by number in drawing
60 spare parts & accessories
60 spare parts & accessories
60 spare parts & accessories
Kit CxA451: O-ring set FPM (Viton)
Drawing number
Order code
22
51512981
Kit CxA451: Retraction pipe short
Drawing number
Order code
14
51513156
Kit CxA451: Retraction pipe long
Drawing number
Order code
5
51513158
Kit COA/CUA451:Sensor holder CUS41Long
Kit COA/CUA451:Sensor holderCUS65short
Kit CUA451: Sensor holder CUS52D short
Kit universal sensor holder short
Drawing number
Order code
11,12,13,2
71425249
Kit universal sensor holder long
Drawing number
Order code
3,4,11,20
71425251
Kit retrofit univ. sensor holder short
Drawing number
Order code
1,2,11,12,
71425252
Kit retrofit univ. sensor holder long
Drawing number
Order code
1,2,3,4,11
71425253
Kit locking rings new sensor holder
Kit CUA451/COA451 Bayonet nut
Drawing number
Order code
1,2
71475985
Drawing number
Order code
1,2
71485020
Kit CxA451: 1 pair of ball handles
Drawing number
Order code
2
51513168
Kit CxA451: Set of small components
Drawing number
Order code
6,7,9,11,1
51513169
Kit CxA451 Ball valve rinse outlet G1/8"
Drawing number
Order code
10
51512982
Kit CxA451: Ball valve with flange DN50
Drawing number
Order code
8,16,17,18
51513154
Kit CxA451: Ball valve w. flange ANSI 2"
Drawing number
Order code
8,16,17,18
51513155
Kit CxA451: Ball valve G2" female thread
Drawing number
Order code
8,16,17
51513159
Kit CxA451 Welding adapter R2" 1.4404
welded fitting 1.4571 DN50/ANSI
Welding socket for spray cleaning VA
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