Flex-Pro® A4, Peristaltic Metering Pump

  • 2500:1 Turndown ratio.
  • Feed rates to 158 GPH (10,000 ML/Min).
  • Pressures to 125 PSI (8.6 bar).
  • Efficient brushless DC motor.

  • Multi color LCD (RGB)
    Red: Alarm
    Green: Run
    Blue: Standby
  • Terminal blocks in junction box for remote connections.
  • Patented Tube Failure Detection (TFD)
  • Five additional Patents Pending.

  • Shipping weight 55lbs, can be shipped via UPS.
  • A4 Peristaltic Metering Pump

Chem-Feed® Engineered Skid System

  • Versatile, single pump and dual pump systems.
  • Exclusive flow indicator, visually indicates pump is delivering solution.
  • Self-filling calibration cylinder (flooded suction not required).
  • Proven components, Plast-O-Matic® ball valves, PRV (pressure relief valve), gauge guards, and metal free check valves.
  • Metal free check valve, protects operator from back-flow during maintenance.
  • Fits any ProSeries® metering pump (diaphragm and peristaltic).
  • Lightweight, no forklift necessary, can be shipped via UPS.
  • Chem-Feed® Engineered Skid Systems

Blue-White Products are made in America

Blue-White is Compliant with Section 1605 of the American Recovery and Reinvestment Act of 2009

Blue-White Products comply with Section 1605 (Buy American) of the American Recovery Reinvestment Act (ARRA) of 2009. This includes all of Blue-White products.

Blue-White Industries manufactures all metering pumps, flow instrumentation, and accessories within the United States of America at our facilities located in Huntington Beach, California.

Manufacturing in America since 1957.

1/2″ Male NPT Fittings now available on A3 Peristaltic Pumps

Blue-White now offers 1/2″ Male NPT fittings for the Flex-Pro A3 peristaltic pump. The fitting incorporates a new patent pending design to allow for quick and easy installation.

  • 1/2″ male NPT adapters are designed to retro-fit with the existing pump head design.
  • Fittings are made of natural PVDF (Kynar®).
  • There is no added price for this option.
  • Standard 1/2″ male NPT fittings means you don’t need to special order expensive cam-lock adapters.
  • Larger orifice size, which allows for higher flow rate with viscous fluids. (Larger orifice than the 3/8″ tube fitting.)

A3 peristaltic pumps now ship with either; 3/8″ tube compression fitting or the new 1/2″ male NPT fitting. Make your selection when you place your pump order.

In-House NIST Traceable Flowmeter Calibrations

Blue-White offers in-house NIST traceable flowmeter calibration for variable area flowmeters, paddlewheel flowmeters, and ultrasonic flowmeters.

NIST Traceable 5-Point Calibration Certificates

Calibration standards comply with MIL-STD 45662A and ANSI/NCSL Z540-1 and are traceable to the National Institute of Standards and Technology (NIST).

Redesigned Rotameters for 2008


  • Body, built 25% greater wall thickness.

  • Half union, 40% larger.

  • Oversized o-rings for superior seal.

  • All adjustment valve models:
    PVC parts have been replaced with PVDF and Polypropylene.

  • Flow indicating marker (adjustable).

  • Improved accuracy.

  • Same flow ranges.

  • Same external dimensions.

  • New F-440 and F-450 series begins shipping in June 2008.


C2 Series Diaphragm Metering Pump


  • Smaller footprint.

  • More strokes per minute.

  • Two diaphragm sizes:

    • 1.5″ diaphragm – Low Flow

      • 37.7 GPH / 142.7 LPH

    • 2″ diaphragm – High Flow

      • 97 GPH / 367.2 LPH

  • Output pressures up to 150 PSI / 10.3 bar

  • Variable Speed Drive (166 RPM Max)

  • Output adjustment: 1-100% in 0.1% increments (high resolution)

  • Washdown (NEMA 4X, IP66)

  • Large Double Ball Valve

  • Priming / Degassing Valve – Built-in

  • Diaphragm Failure Detection (DFD) – Built-in

  • Housing constructed of chemical resistant, powder coated 413 aluminum

  • Smooth full stroke every time – helps reduce chance of vapor-lock

  • Smooth motor driven chemical feed
    (no hammering as seen with solenoid style metering pumps)

Flex-Pro® – A3 Peristaltic Metering Pump


  • 2500:1 Turndown Ratio

  • Variable speed brushless DC motor

  • Washdown, NEMA 4X (IP66)

  • Max feed rate 33.3 GPH (126 LPH) at 125 PSI (8.6 bar)

  • Scalable output signal to control other pumps
    (4-20 mA and pulsed output)

  • Multiple inputs:

    • 4-20 mA

    • 0-10 VDC

    • Pulsed

    • Batch (program trigger from 1 – 1,000 pulses)

    • Contact Closure (remotely turn the pump ON/OFF)

    • And more…

  • Automated parts per million dosing

  • Multiple contact closure outputs (3)

  • Programmable 6 amp relay

  • Patented Tube Failure Detection

New peristaltic pump patent # 7,284,964

Blue-White has been awarded another patent for peristaltic pump technology.

This is Blue-White’s third patent for peristaltic pumps.

This patent is separate from our existing TFD patent, which detects tube failure from inside the peristaltic pump head. This new patent is now used to detect tube failure from outside of the pump head with no false triggering.

This patent can be used to retrofit older peristaltic pumps with the TFD system.

Blue-White is dedicated to peristaltic pump innovation.