Name: Flowfit W CUA250
Brand: Endress+Hauser
Availability: InStock

Turbidity assembly Flowfit CUA250

Phase out

Product is getting phased out

Phase out Product status

Turbidity assembly Flowfit CUA250

New alternatives available

Successor

Flowfit CYA251

Successor

Flowfit CUA252

Phase out policy
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Phase out policy

Endress+Hauser are committed to the long term support of all our products

We undertake support and service for our products for a period of ten years after notice of product withdrawal (until spareparts are not available any more)

However we reserve us the right to offer alternative solutions including replacement products if deemed more appropriated.

Product status

Product root CUA250

Name Turbidity assembly Flowfit CUA250

Product status In phase out

Phase out date 7/2025

Order stop 12/2027

Spare sensor until not applicable

Calibration until not applicable

Spares available 12/2032

Repair until 12/2032

New alternative CYA251, CUA252

Maintenance advice

Flow assembly for water and wastewater applications

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Turbidity assembly Flowfit CUA250

Phase out

Flow assembly for water and wastewater applications

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Successors

Flowfit CYA251

Compare

Flowfit CYA251

Flow assembly for water, wastewater and utilities

Flowfit CUA252

Compare

Flowfit CUA252

Polyethylene (PE) flow assembly for drinking water, process water and utilities

Benefits

Flow assembly featuring simple adaptation to standard piping
Sensor orientation can be adapted to individual requirements of application
Additional cleaning device employs spray cleaning to increase sensor maintenance intervals
Flange adapter for standardized DN 50 flange installation

Services and resources

Product Support Product documentation, troubleshooting articles, device details and more.

Manufacturer's warranty

Engineered for confidence

Our instruments are designed for long‑lasting performance, precise measurement, and dependable operation in demanding industrial environments. Each product includes a standard manufacturer’s warranty that reflects our commitment to quality and to the trust you place in our solutions.

Should a warranty case occur, the device will be assessed and the applicable remedy will be provided in line with the warranty terms – helping ensure a reliable and efficient resolution and supporting continued operation of your measurement point.

Request for extended warranty

If you require extended warranty coverage, simply contact your local Endress+Hauser representative. Our experts will advise you on the available options to match your application and risk profile, helping you protect your investment, reduce unexpected repair costs, and ensure reliable long‑term operation beyond the manufacturer's warranty period.

Learn more

Warranty terms apply

The manufacturer's warranty and extended warranty are subject to specific conditions. For full details, please refer to the locally applicable General Terms and Conditions (GTC), which can be found on the respective country page of our website.

Services by your side

Right‑first‑time commissioning, worldwide

Endress+Hauser’s qualified service engineers ensure your measurement devices are commissioned right the first time, delivering application‑aligned accuracy, regulatory compliance, and operational confidence from startup onwards, anywhere in the world.

Remote support you can trust wherever you operate

With Endress+Hauser Smart Support, you benefit from faster issue resolution, higher uptime, reliable global expertise across the entire product lifecycle – and lasting peace of mind.

Committed to long‑term, sustainable performance

With deep field expertise, harmonized processes, and continuous monitoring, we accompany you with comprehensive service offerings – from initial start‑up through instrumentation maintenance to process optimization – as a true lifetime partner delivering improved outcomes.

For additional information, please contact your local Endress+Hauser representative.

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24/7 customer portal

Personalized transaction space

Check prices and delivery times, save your favorite products, create quotes and place orders in just a few clicks and track deliveries at any time. With access to your complete order and quote history including all relevant documents you benefit from full transparency throughout the entire process.

Easy access to technical documentation

Select and download all technical documentation such as operating manuals, calibration certificates, approvals and CAD drawings conveniently bundled as a complete documentation package for your entire order or quote.

My Endress+Hauser – all in one place

My Endress+Hauser is your 24/7 connection to Endress+Hauser – in the office, in the field or on the go. It brings together transaction management, documentation and software downloads, knowledge base access, customer support, engineering tools and cloud‑based IIoT services helping you work easier, faster and more efficiently.

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Product information

Specifications

Description

Flowfit CUA250 is a process and flow assembly for turbidity measurement. Continuous in-line measurement of turbidity in aqueous media is used for real-time measurement of non-soluble substances in water for purposes of monitoring, detection of operating states and control applications.

Field of application

Flowfit CUA250 is a flow assembly for use with turbidity sensors Turbimax CUS31 and CUS41. Typical applications are:

Discharge monitoring in communal and industrial wastewater
Sedimentation monitoring in wastewater treatment (coagulation and flocculation)
Recycling of industrial service water
Filter effluent and filter rupture monitoring
Clear rinse cycle monitoring
Flotation process monitoring
Monitoring of closed circuits, e.g. cooling water and product pipelines

Benefits

Flow assembly featuring simple adaptation to standard piping
Sensor orientation can be adapted to individual requirements of application
Additional cleaning device employs spray cleaning to increase sensor maintenance intervals
Flange adapter for standardized DN 50 flange installation

Downloads

Most downloaded

Technical Information (TI)

Technical Information FlowFit W CUA 250 / CUA 120 Adapter for flow assembly and flange mounting,
optionally available with spray function

English version - 02/1998

Download

Manufacturer Declaration

Product family: FlowFit W Product root: CUA250-
Declaration number: HE_01030_01.18
Manufacturer specification: RoHS

English version - 09/2018

Download

Components sheet

Sensoradapter: CUS52D for CYA251/CUA250 SF Sensoradapter: CUS52D for CYA251/CUA250

English version - 08/2026

Download

The CAD Drawings will be available after the configuration.

More options

Download page as PDF Search downloads by serial number

More options

Download page as PDF Search downloads by serial number

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Spare parts and accessories

further parts

Sensoradapter: CUS52D for CYA251/CUA250

further parts

Order code 71248647

Drawing number 30

further parts

Kit CUA250 sensor adapter CUS51D

further parts

Order code 71448699

Drawing number 30

further parts

Kit 10x Hexagonal nut G1"

further parts

Order code 71448687

Drawing number 40

further parts

Kit CUA250 sealing set

further parts

Order code 71448698

Drawing number 180

Spare parts and accessories

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Use the extended configuration to configure from all available options.

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Configuration details

Flowfit CUA250 is a flow assembly for turbidity measurement in process and wastewater.

Flow assembly for turbidity sensors

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CAD Drawings

Configuration support

Spare parts and accessories

further parts

Sensoradapter: CUS52D for CYA251/CUA250

further parts

Order code 71248647

Drawing number 30

further parts

Kit CUA250 sensor adapter CUS51D

further parts

Order code 71448699

Drawing number 30

further parts

Kit 10x Hexagonal nut G1"

further parts

Order code 71448687

Drawing number 40

further parts

Kit CUA250 sealing set

further parts

Order code 71448698

Drawing number 180

Spare parts and accessories

Measuring principle	Single beam scattered light
Application	Waste water, industrial water
Installation	Flow through holder for pipe or bypass installations
Characteristic	Flow through holder for the turbidity sensors CUS31/41, blackened inside to minimize light reflexions.
Design	Flow through holder optional with spray head for a manual or automatic cleaning of the sensor head inside the holder with the cleaning device CUR3.
Material	Holder body : PVC Sealing : EPDM
Dimension	Diameter : 100mm (3.94inch)Height : 196mm ( 7.64inch)
Process temperature	max. 50°C (max. 122°F)
Process pressure	max. 6bar (max.87psi)
Connection	Process connections :- Screw type : DN20/d25- Mounting in GF DN50/d63-pipe.

Product is getting phased out

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Phase out policy

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Turbidity assembly Flowfit CUA250

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Product is getting phased out

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Turbidity assembly Flowfit CUA250 Phase out

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Turbidity assembly Flowfit CUA250

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