CleanFit P CPA473

Summary

Product identification

Product Name: Cleanfit P CPA473 Description: Retractable stainless steel process assembly with ball valve for pH and ORP electrodes.

Application Industries:

• Chemical industry
• Paper industry
• Wastewater / industrial water
• Power plants
• Refuse incinerators
• Sugar industry

Function and system design

The assembly allows for "Measure" and "Service" operating statuses to be changed manually, pneumatically, or via Topcal S CPC310/Topclean S CPC30. Limit position switches are available for automated operation.

When moving from "Service" to "Measure":

1. Ball valve opens.
2. Assembly moves to the measuring position.
3. Feedback signal is sent to the transmitter/DCS or control system.

When moving from "Measure" to "Service":

1. Assembly moves back into the assembly.
2. Ball valve closes.
3. Feedback signal is sent to the transmitter/DCS or control system.

Sealing System:

• Patented packing sleeve (PEEK) with three radial seals.
• Optional scrapers (PVDF/PTFE or PEEK with O-rings) for the ball valve.

Sealing Water Function:

• Requires a pneumatic outlet safety seal for the rinse chamber outlet.
• Scraper (item 3) can be removed if needed for sealing water.

Limit Position Switches:

• Pneumatic version: 4 pneumatic switches.
• Electric version: 3 pneumatic and 2 inductive switches.

Installation

General:

• Recommended to use a flanged version for inclined orientations with stainless steel pressure cylinders.
• Avoid siphon effect at the rinse chamber outlet when installing with inclined orientation; inlet must be from below.

Pneumatic Connections:

• Air Pressure: 4 to 6 bar (58 to 87 psi).
• Air Quality: Filtered (40 μm), free of water and oil.
• Line Diameter: Minimum nominal diameter of 4 mm (0.16").
• Connection Thread: 2 x G 1/8.
• A pressure-reducing valve is required if air pressure can exceed 6 bar (87 psi).

Environment:

• Ambient Temperature: Not below 0 °C (32 °F).
• With optional inlet/outlet safety seal, ambient temperature must not exceed 80 °C (176 °F).

Process

Pressure Limits:

• Manually Actuated Assemblies: Maximum 4 bar (58 psi).
• PA Pressure Cylinder: Maximum 6 bar (87 psi) and 80 °C (176 °F).
• Stainless Steel Pressure Cylinder:
  • Up to 6 bar (87 psi) at 100 °C (212 °F) continuous operation.
  • Short-term (max. 1 hour): 5 bar (72.5 psi) at 140 °C (264 °F).
  • Short-term (max. 1 hour): 10 bar (145 psi) at 100 °C (212 °F).
• Pneumatic Outlet Safety Seal: 6 bar (87 psi) / 100 °C (212 °F) continuous; 5 bar (72.5 psi) / 140 °C (264 °F) short-term (max. 1h).
• Manual Outlet Safety Seal: 6 bar (87 psi) / 20 °C (68 °F); 2 bar (29 psi) / 130 °C (265 °F).
• Ball Valve (Service Position): Maximum 16 bar (232 psi) and 130 °C (266 °F).

Temperature Limits (Pressure Cylinder):

• PA Pressure Cylinder: Maximum 80 °C (176 °F).
• Stainless Steel Pressure Cylinder: Up to 100 °C (212 °F) continuous operation at up to 6 bar (87 psi); short-term up to 140 °C (264 °F) at 5 bar (72.5 psi) or 100 °C (212 °F) at 10 bar (145 psi).

Flow Velocity:

• Maximum 3 m/s (9.8 ft/s).
• A flow of 2 to 3 m/s (6.5 to 9.8 ft/s) should not be exceeded.

Mechanical construction

Dimensions:

• Pneumatic, short version (KCl sensors): Stroke length varies.
• Manual, long version (gel sensors, flange): Stroke length varies.

Weight:

• 4 to 15 kg (8.8 to 33.1 lb), depending on configuration.

Materials (in contact with medium):

• Seals: EPDM / FPM / perfluoroelastomer.
• Electrode Holder: Stainless steel 1.4404 (AISI 316L), electro-polished.
• Ball Valve: Stainless steel 1.4401 / 14408 (AISI 316 / CF-8M), PTFE.
• Inlet/Outlet Safety Seal: PVDF, PTFE, Viton®.
• Rinse connection socket: Stainless steel 1.4404 (AISI 316L).

Materials (not in contact with medium):

• Pressure Cylinder: PA / stainless steel 1.4404 (AISI 316 L).
• El. limit position switch housing: PBT, cable PVC.

Process Connection:

• Rinse Fittings: 2 x G¼ (internal) or 2 x NPT ¼" (internal).
• Available Process Connections:
  • G1¼ internal thread (short/long versions).
  • Dairy fitting DN 65 (short version only).
  • Flange DN 50, PN 16 (short/long versions).
  • Flange ANSI 2", 150 lbs (short/long versions).

Fitted Sensors (Immersion Depths):

• Short Version:
  • pH glass electrodes, Gel: 225 mm (8.9").
  • pH glass electrodes, KCl: 425 mm (16.7").
  • pH ISFET sensors, Gel: 225 mm (8.9").
  • pH ISFET sensors, KCl: 425 mm (16.7").
• Long Version:
  • pH glass electrodes, Gel: 360 mm (14.2").
  • pH ISFET sensors, Gel: 360 mm (14.2").

Ball Valve:

• DN 25 type: FP3
• Material: 1.4408 (AISI CF-8M), PTFE fiber-glass reinforced.
• Shaft Seal: 3x piston ring clamp made of PTFE/graphite.

Limit Position Switches:

• Pneumatic: 3/2 way valve; thread M 12 x 1; connection for hoses with OD = 6 mm (0.24").
• Electric: Inductive (NAMUR type); cable length: 10 m (32.8 ft); housing material: stainless steel; thread M 12 x 1; nominal voltage: 8 V.

Rinse chamber inlet and outlet safety seals

• Inlet Safety Seal: Non-return valve prevents medium from entering the rinse water inlet.
• Pneumatic Outlet Safety Seal: Valve for rinse chamber outlet.
• Manual Outlet Safety Seal: Ball valve made of PVDF, manually operated.

Certificates and approvals

• Inspection certificate 3.1 acc. to EN 10204 is available depending on the version.

Product structure

The product structure details various options for:

• Assembly Drive, Ball Valve: Manual or pneumatic with different limit switch configurations.
• Assembly Version: Based on temperature, pressure, and scraper presence.
• Electrode Type: For gel, KCl, and ISFET sensors.
• Immersion Depth: Short or long versions with different cylinder materials.
• Assembly Material: Stainless steel options with or without a test certificate.
• Seal Material: EPDM, FPM, or Perfluoroelastomer.
• Process Connection: Threaded, dairy fitting, or flange options.
• Optional Equipment: Safety seals, rinse connection sockets.

Accessories

• Process adapter
• Welded fitting
• Water filter and pressure reducer
• Pneumatic throttle
• Rinse connection adapter
• Inlet / outlet safety seals (pneumatic and manual)
• Hose connections for rinse chamber
• Limit position switches

---

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