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Flex-Pro A3 Peristaltic Metering Pump
by Blue White Industries

USA Toll Free: 1-800-730-0302 Tel: 416-240-1920 -

Flex-Pro™ A3 Peristaltic Metering Pump

Peristaltic PumpFlex-Pro A3 Series Peristaltic Pump for high pressure and high accuracy applications.

Spec the A3 in your next job... Engineering Spec Sheet DOC

  • Feed Rates to 33.3 GPH

  • Pressures to 125 PSI

  • 2500:1 Turndown ratio

  • Patented Tube Failure Detection

  • Brushless DC Motor

  • NEMA 4X (IP 66) Washdown

  • 2 Year Warranty

  • NEW! Flex-A-Prene™ Tubing with more than 4X longer tube life.

Benefits of a Peristaltic Pump:

  • Peristaltic Pump

    A3V Series

    Peristaltic pump design does not have valves that can clog requiring maintenance.

  • Self priming - even against maximum line pressure. By-pass valves are not required.

  • Cannot vapor lock or lose prime.


  • 2500:1 turndown ratio.

  • Output rates to: 33.3 GPH (126 LPH) and pressures to 125 PSI (8.6 Bar).

  • Inject at maximum pressure in either direction (clockwise and counter clockwise).

Communication & Interface:

  • SCADA Inputs include: 4-20mA, 0-10Vdc, and Pulse inputs for remote external

    speed control and 0-30 VDC / contact closure remote start/stop.

  • A3 with Extended Brackets

    Shown with optional
    extended brackets

    Operator friendly digital touch pad with menu driven software.

  • VGA Graphic multi-color backlit LCD displays remote/local control status, motor speed,
    output rate, input signal values, service and alarm status.

  • Outputs include: Scalable 4-20mA or pulse, one 250V/6A relay and three 115V/1A contact closures
    assignable to monitor up to 17 different pump functions including TFD, FVS, remote/local
    control setting, motor on, fault, current operating mode, and others.

  • Compatible with Blue-White's output Flow Verification Sensor (FVS) system.

Superior Engineered Design:

  • Two CNC precision machined squeeze rollers and two alignment rollers for optimum squeeze,
    unparalleled accuracy, and tube life.

  • Heavy duty rotor - single piece plastic rotor means no flexing and increased accuracy with
    no metal springs or hinges to corrode.

  • No maintenance brushless variable speed motor.

  • Specially engineered tubing for long life at high pressures. Meets FDA 21 CFR requirements
    for food contact applications.

Patented Features:

  • Patented Tube Failure Detection (TFD) system. Senses tube failure by detecting
    chemical in the pump head. No false triggering.

  • Patented Component Control System.

    Eliminates Need for External PLC

  • A method used to control two or more positive displacement pumps in a system. The Component Control System ensures that two or more positive displacement pumps, operating in a system together, will run only if all pumps in the system are running.
    This can reduce costs by eliminating the need for separate pump controllers for each unit. This feature will be particularly important when failure of one pump to meter chemical could have a damaging effect on the entire process, for example; when pumping two or more chemicals into a system using multiple pumps, particularly when two or more chemicals rely on one-another to achieve desired results (i.e. Chemical reaction).

    With the patented Component Control System, if one pump should stop running for any reason, all pumps will stop running.

  • Patented feature to extended tube life.

    The Method comprises switching the inlet and outlet connections of the peristaltic pump, and reversing the rotational direction of the roller assembly, thereby moving the wear point of the tube which results in approximately double the useful life of the tubing.

    The patent includes: Identify usage information of the tubing of the peristaltic pump, and ability to stop the pump automatically after a certain number of rotor revolutions.

    Implementation of the method discussed above can also result in cost and time savings. Clearly, by extending the life of the tubing, replacement costs are substantially decreased. However, implementing such a method can also save production and replacement time that would otherwise be sacrificed in maintaining the system. Included on all Flex-Pro pumps.

  • Patented Safety Switch.

    Maintenance Mode Operating Feature

    Protects the pump operator when performing maintenance to the pump head, such as cleaning the pump tube. The switch stops the pump when front cover is removed. The pump will only operate in maintenance mode while the front cover is removed, helping to ensure operator safety. Included on all Flex-Pro pumps.

Max. Working Pressure: 125 psig (8.6 bar)
Note: see individual pump tube assembly maximum pressure ratings.

Max. Fluid Temperature: 3/8" OD x 1/4" ID tubing connections: 130ºF (54ºC)

M/NPT connections: 185ºF (85ºC)
Note: see individual pump tube assembly maximum temperature ratings.

Ambient Operating Temperature: 14ºF to 115ºF (-10ºC to 46ºC)

Ambient Storage Temperature: -40ºF to 158ºF (-40ºC to 70ºC)

Maximum Viscosity: 12,000 Centipoise

Maximum Suction Lift: 30 ft. Water at sea level (14.7 atm psi)

Operating Voltage: 96 to 264VAC-50/60Hz, 220W

Power Cord Options: 115V60Hz = NEMA 5/15 (USA)
230V60Hz = NEMA 6/15 (USA)
220V50Hz = CEE 7/VII (EU)
240V50Hz = AS 3112 (Australia/New Zealand)

Motor: Brushless DC

Motor Speed Adjustment Range 2,500:1: 0.04% - 100% motor speed

Motor Speed Adjustment Resolution: 0.1% increments > 10% motor speed
0.01% increments > 1% motor speed and < 10%
0.001% increments < 1% motor speed [/av_cell] [/av_row]

Display: 3 color VGA backlit LCD, UV resistant

Display Resolution: 0.1 > 10% motor speed
0.01 > 1% motor speed and < 10%
0.001 < 1% motor speed [/av_cell] [/av_row]

Keypad: Ten button positive action tactile switch keypad

Enclosure: NEMA 4X (IP66), Polyester powder coated aluminum.

Security: Programmable 4-digit password

Maximum Overall Dimensions: 8-1/8" ?W x 10-3/4" H x 15-1/4" D (20.6W x 27.3H x 38.9D cm)

Product weight: 33lb. (15.0 Kg)

Approximate shipping wt: 37 lb. (16.8 Kg)



Instruction Manual – A3V & A4V PDF (80000-463)
Instruction Manual – A3F & A4F PDF (80000-419)
Technical Data Sheet - PDF (85000-098)
Engineering Spec Sheet - DOC
Tubing Selection Guide - PDF (85000-120)
Flex-A-Prene™ Tecnical Data Sheet - (PDF)


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Metex Corporation Limited has been providing superior products and services to the process control, chemical treatment, waste water, industrial and manufacturing industries for over 25 years. It is our goal to continually provide our customers with the best possible equipment, technology, and service.


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