FLEXFLO® Peristaltic Metering Pump

The FLEXFLO® M5 Peristaltic Metering Pump is truly an advancement in high-volume precision fluid metering. This energy-efficient pump is capable of delivering outputs up to 9 gallons per minute at only 75 RPM motor speed, maximizing tube life and reducing overall maintenance. The M5 also reduces pulsation by up to 80% through its exclusive offset roller design and dual-channel tube assembly.

The M5 is a fully enclosed and easily configurable pump that does not require external control devices to operate. It features a large 5″ display for easy viewing with simple and intuitive touchscreen controls and icon-driven menu navigation. M5 remote control signal options include Pulse, 4-20mA, Modbus TCP, EtherNet/IP™, and PROFIBUS for enhanced supervision and automation for critical metering and transfer applications.

Technical Overview:

.05 - 540
.21 - 2044
Enclosure Rating
NEMA 4X (IP66), Kydex
cETLus, CE, NSF61
Control Methods
Manual, Remote Analog/Digital, EtherNet/IP, Modbus TCP/IP, PROFIBUS
Power Supply
115 to 240VAC-50/60Hz
3D Visualizer


  • 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
  • Dual channel tube design for optimum performance and pressure capability
  • Exclusive offset-roller design reduces pulsation by up to 80%
Communication and Interface:
  • 5” touchscreen color LCD display
  • User-friendly configurations
  • Control Methods:
    • Manual Control
    • 4-20mA Input
    • Remote Start/Stop
    • Pulse Input
    • Frequency Input
    • EtherNet/IP
    • Modbus TCP/IP
    • Alarm Outputs
    • FVS
    • Relay Ouput
Superior Design:
  • 5 Year Warranty
  • 10,000:1 turndown ratio
  • NEMA 4X (IP66) wash-down, chemically resistant 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
  • Security programmable 6-digit password to prevent tampering


Maximum Working Pressure (excluding pump tubes)
  • 65 psig (4.4 bar)
  • NOTE: See individual pump tube assembly maximum pressure ratings.
Maximum Fluid Temperature (excluding pump tubes)
  • 185 °F (85 °C)
  • NOTE: See individual pump tube assembly max. temperature ratings.
Maximum Viscosity
  • 12,000 Centipoise
Maximum Suction Lift
  • 30 ft. Water, 0 psig (9.14 m, 0 bar)
Ambient Operating Temperature
  • 14 °F to 115 °F (-10 °C to 46 °C)
Ambient Storage Temperature
  • -40 °F to 158 °F (-40 °C to 70 °C)
Operating Voltage
  • 115VAC/60Hz, 1ph
  • 230VAC/60Hz, 1ph
  • 220VAC/50Hz, 1ph
  • 240VAC/50Hz, 1ph
  • 230VAC/50Hz, 1ph
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)
  • Brushless DC, 1 hp
Motor Speed Adjustment Range
  • 10,000:1 (0.01% – 100% motor speed) Max RPM = 75
Motor Speed Adjustment Resolution
  • 0.1% increments > 1% motor speed and < 100%
  • 0.01% increments < 1% motor speed
  • 5” touchscreen color LCD, UV resistant.
Display Languages
  • English, Spanish, French, German, and Portuguese selectable
Maximum Overall Dimensions
  • 25.7”W x 30.1”H x 32.8”D (65.2W x 76.4H x 83.3D cm)
Product Weight
  • 178 lb. (80.7 Kg)
  • Programmable 6-digit password
Approximate Shipping Weight
  • 180 lb. (81.65 Kg)
  • NEMA 4X (IP66), Kydex
RoHS Compliant
  • Yes
  • cETLus, CE, NSF61



Replacement Parts

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M5 Technical Data Sheet – 85000-188
94698 793.25 KB June 9, 2022
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