FLEXFLO® Peristaltic Metering Pump

Simplify chemical feed with the FLEXFLO® M2 Peristaltic Metering Pump. This rugged and compact pump features a gentle, low-shear pumping action, making it an ideal choice for dosing shear-sensitive or gaseous fluids. The M2 does not require check valves, seals, or other ancillary equipment to function, reducing maintenance intervals and process downtime.

Remote control signal options include Remote Start/Stop, Flow Verification, Pulse, and 4-20mA.

Technical Overview:

GPH .0085 – 21.23 Enclosure Rating NEMA 4X (IP66)
LPH .032 – 80.4 Standards NSF/ANSI 61, CE, cETLus, RoHS
mL/min .5333 – 1340 Control Methods Manual, Remote Analog/Digital
Pressure 125 PSI (8.6 Bar) Power Supply 100 to 240VAC-50/60Hz



  • Self-priming – even against maximum line pressure. By-pass valves are not required. Cannot vapor lock or lose prime. 30ft of suction lift. Gentle low shear pumping action.
  • Tube Failure Detection (TFD) senses tube rupture by detecting chemical in the pump head. No false triggering – Patented
  • Optional dual channel tube design for optimum performance and pressure capability

Communication and Interface:

  • Operator friendly digital controls with backlit LCD displays motor speed, input signal values, service, and alarm status
  • Inputs include: 4-20mA and pulse inputs for remote external speed control and either powered 6-24 VDC or non-powered dry contact closure for remote start/stop
  • Outputs: one 250V/3A relay to monitor TFD (Tube Failure System) and FVS (Flow Verification System), one 4-20mA analog signal scalable to the motor speed and one relay output for run status
  • Compatible with Blue-White’s output Flow Verification Sensor (FVS) system. Sensor is sold separately

Superior Design:

  • 5 Year Warranty
  • 200:1 turndown ratio
  • NEMA 4X (IP66) wash-down, chemically resistant powder coated enclosure
  • Heavy duty rotor means no flexing and increased accuracy with no metal springs or hinges to corrode.

Safety Features:

  • Tube Failure Detection (TFD) senses tube rupture, preventing hazardous chemical spills

Optional Components Available:

  • Mounting Extended Brackets (72000-380) – 1 Pair, SS, 4 SS Screws

What’s Included:

  • M2 Peristaltic Metering Pump
  • Two tube assemblies
  • Tube installation tool
  • Mounting hardware kit


Maximum Working Pressure (Excluding Pump Tubes)
125 psig (8.6 bar)
NOTE: See individual pump tube assembly maximum pressure ratings.
Maximum Fluid Temperature (Excluding Pump Tubes)
3/8” OD x 1/4” ID tubing connections: 130 °F (54 °C)
M/NPT connections: 185 °F (85 °C)
NOTE: See individual pump tube assembly max. temperature ratings.
Maximum Viscosity
12,000 Centipoise

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

Maximum Operating Temperature
14 °F to 115 °F (-10 °C to 46 °C)
Maximum Storage Temperature
-40 °F to 158 °F (-40 °C to 70 °C)
Operating Voltage
115VAC/60Hz, 1ph (1.5 Amp Maximum)
230VAC/60Hz, 1ph (0.7 Amp Maximum)
220VAC/50Hz, 1ph (1.0 Amp Maximum)
240VAC/50Hz, 1ph (1.0 Amp Maximum)
Power Cord Options
115V60Hz = NEMA 5/15 (USA)
230V60Hz = NEMA 6/15 (USA)
220V50Hz = CEE 7/VII (EU)
240V50Hz = AS 3112 (Australia/New Zealand)
230V50Hz = BS 1363/A (UK)
Brushed DC, 1/8 H.P.
Duty Cycle
Motor Speed Adjustment Range
200:1 (0.5% – 100%) Max rpm = 130 rpm
Motor Speed Adjustment Resolution
0.1% increments
Backlit LCD, UV resistant
Eight button positive action tactile switch keypad
Maximum Overall Dimensions
7-1/2” W x 10-1/4” H x 14” D (19 W x 26 H x 35.6 D cm)
Product Weight
28.4 lb. (12.9 Kg)
Approximate Shipping Weight
35 lb. (15.9 Kg)
NEMA 4X (IP66), Polyester powder coated aluminum
RoHS Compliant