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AT4-PR Dosing Pump


The AT4-PR Electromagnetic Dosing pump is a red dosing pump with a built in pH/ORP Controller this allows a compact solution for pH control and chemical dosing. The AT4-PR has IP65 Protection and a PVDF pump head making it suitable for wastewater treatment, portable water applications and industrial applications. With its PTFE Diaphragm and ceramic ball, it allows for a full range of chemical compatibility, long life expectancy and steady dosing.

The AT4-PR has adjustable flow rates by buttons on the front panel with an industry standard 4-20mA output. The unit also includes an Anti Seepage system to prevent the intrusion of chemicals into the pump body.

The AT4-PR can also be attached to a flat vertical surface for surface mounting installation or used with the optional foot-mounting bracket for foot mounting applications.

Designed primarily for water treatment, waste-water treatment, effluent treatment and process control, the AT4-PR is a simple, cost effective and reliable dosing pump for high pressure dosing applications.

AT4-PR Dosing Pump Outputs

The AT4-PR dosing pump series are available with the following outputs:-

Model NumberFlow RatesPressure (Bar)CC/IMPConnectionsStrokes/MinPower (Watts)
AT4-PR 20 l/hr 5.0 1.11 8x12 300 40
  32 l/hr 4.0 1.78 8x12 300 40
  62 l/hr 2.0 3.44 8x12 300 40
  110 l/hr 0.1 6.11 8x12 300 40


  • PVDF Pump head
  • Ceramic Ball
  • PTFE Diaphragm
  • IP65 Protection
  • Adjustable Flow Rates
  • 4-20mA Output
  • Manual/Automatic Calibration
  • Optional Automatic temperature compensation

Wetted Parts

  • Head Material

    The wetted parts of the pump head are manufactured in PVC or PVDF.

  • Double ball valves

    Double union ball valves are manufactured in PVC or PVDF with Ceramic or PTFE balls 

  • Diaphragm

    The diaphragm is manufactured in PTFE.

  • Injection Valve

    The injection valves are manufactured in PVC or PVDF

  • Foot Valve & Strainer Valve

    The foot valve and strainer assembly is manufactured in PVC or PVDF

  • Seals & O-Rings

    The seals and O-Rings are manufactured in VitonEPDM or PTFE.

Our chemical compatibility database can be used to check the wetted parts.  Please don't hesitate to get in touch if you are unsure.

Whats in the box?

The AT4-PR is supplied complete with everything required to begin metering chemical reagents into a process.

Supplied with the dosing pump itself are:-

  • Injection Valve with 3/8" and 1/2" BSP male threaded connections
  • Foot-valve & Strainer assembly
  • 1 metre of discharge tubing
  • 2 metres of suction / bleed tubing
  • Surface mounting kit

An optional foot mounting bracket can be included for no additional charge, if requested.

AT4-PR Dosing Pump Specifications

  • Specifications


    Electromagnetic Dosing Pump with built in pH/ORP Controller

    Model Number: AT4-PR

    Control Outputs: 4-20mA output signal

    Frequency: Max 120 Strokes / Min

    Liquid End Materials: PVC or PVDF

    Diaphragm Materials: PTFE

    Valve Housings: PVC & Ceramic, PVDF & Ceramic, PVDF & PTFE

    Seals & O-Rings: Either Viton, EPDM or PTFE

    Input / Output Connections: 4 x 6 / 7mm tubing

    Measuring range: pH 0÷14 - Rx -999÷+999 mV

    Power Consumption: 15 Watts

    Pump Body: Designed to meet IP65

    Mains Supply: 100 - 240 VAC 50Hz / 60Hz


  • Features


    •  IP65 Protection
    • Anti Seepage System
    • Built in pH/ORP controller
    • Suitable for industrial applications, waste watertreatment and potable water applications.
  • Data Sheets

    Data Sheets


More Information

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