Turbimax CUA252

Summary

Product identification

• Product: Flow assembly for CUS52D turbidity sensor
• Model: CUA252
• Document: TI01139C/07/EN/04.20, 71508956, 2020-12-03

Application

The CUA252 flow assembly is designed for installing the CUS52D turbidity sensor in pipelines or closed pipes for sampling. It is suitable for:

• Turbidity measurement at all stages of water treatment.
• Final and inlet turbidity measurement in waterworks.
• Filter monitoring and backwashing.
• Turbidity measurement in drinking water networks.

The assembly is made of PE100 material, making it suitable for drinking water applications.

Function and system design

A complete measuring system comprises:

• Flow assembly Flowfit CUA252
• Sensor Turbimax CUS52D
• Transmitter (e.g., Liquiline CM442)
• Measuring cable

Installation

General instructions

• Install the flow assembly vertically.
• Connect the inflow at the bottom end for upward flow.
• Ensure no buckles or loops in the hose system.
• Align the sensor's optical windows against the direction of flow.
• Use the installation marking on the sensor for correct orientation.
• Only insert turbidity sensors with a 2" clamp.

Mounting options

• Wall or pipe mounting: Can be mounted using an optional wall holder unit.
• Bypass installation: Requires shut-off valves upstream and downstream for maintenance.
• Branch pipe with open outlet: Requires a shut-off valve upstream.
• Bubble trap: For managing gas bubbles, typically used with a 12 mm internal diameter PVC hose. The wastewater from the bubble trap is not suitable for process feedback.

Flow control

• Orifice plates are included for controlling volume flow:
  • 1 mm (0.04 in) for volume flow < 60 l/h (15.8 gal/h)
  • 3 mm (0.12 in) for volume flow 60 to 100 l/h (15.8 to 26.4 gal/h)
  • 5 mm (0.2 in) for volume flow > 100 l/h (26.4 gal/h)

Operating limits

• Ambient temperature range: 0 to 55 °C (32 to 131 °F)
• Storage temperature: 0 to 60 °C (32 to 140 °F) (in original packaging)
• Process temperature range: 0 to 50 °C (32 to 122 °F)
• Process pressure range: 0 to 6 bar (0 to 87 psi)
• Flow velocity: Max. 2 m/s (6.6 ft/s) for low-viscosity media in pipes NW 50
• Recommended flow: 60 l/h (15.8 gal/h)
• Flow range: 10 to 100 l/h (2.64 to 26.4 gal/h)
• Pressure loss: < 0.05 bar (0.7 psi) for flow up to 100 l/h (26.4 gal/h)

Pressure-temperature ratings

See the official PDF for exact tabulated values and graphical representations of pressure-temperature ratings for the main assembly and the bubble trap.

Mechanical construction

Dimensions

See the official PDF for detailed dimensional drawings and specifications (X and Y dimensions) for various process connection types.

• Weight: 1.17 kg (2.58 lb) without process connection

Materials

• Assembly housing: PE100
• Seals: EPDM
• Flange: PP-GF
• Dummy cover: Stainless steel 1.4404 (AISI 316 L)
• Bubble trap: Polycarbonate
• Process connections: PE
• Process connection for bubble trap: PVC
• Clamp fitting: Stainless steel 1.4404 (AISI 316 L)

Process connections

Available process connections include:

• Internal thread Rp ¾"
• Internal thread NPT ¾"
• Glue-in port D 25
• Hose D 25
• Flange ANSI 2"
• Also possible: External thread G1 ¼ (B1) or D 12 hose (D2)

Certificates and approvals

• DRGL- 2014/68/EU / PED- 2014/68/EU: Manufactured according to good engineering practice as per Article 4, Paragraph 3 of the Pressure Equipment Directive 2014/68/EU.

Ordering information

Scope of delivery

• 1 Flowfit CUA252 flow assembly
• 1 clamp seal and locking clamp
• 2 process connections
• 1 set of Operating Instructions

Accessories

• Dummy cover for clamp connection
• Adapter with internal thread (Rp ¾", NPT ¾")
• Adapter for welded connection (D 25)
• Adapter for hose connection nipple (D 25, D 12)
• Adapter for flange ANSI 2"
• Ultrasonic cleaning system CYR52
• Bubble trap (for CUS52D sensor, process pressure up to 3 bar, process temperature 0 to 50 °C)
• Wall mounting kit for CUA252

Disclaimer

This extraction may miss figures, footnotes, or revisions. Contractual data must match the OEM PDF revision used on the project.

Official datasheet (PDF)

Lenntech datasheet mirror