A3

FLEXFLO® Peristaltic Metering Pump

Experience next-level chemical metering with the FLEXFLO® A3 Peristaltic Metering Pump.  The A3 combines accurate metering at discharge pressures up to 125 PSI, intuitive icon-based touchscreen controls, and IP-rated M12 connection ports that protect against moisture, dust, vibration, and any temperature change.

A3 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:

GPH
.001 - 33.3
LPH
.003 - 126
mL/min
.05 - 2100
Pressure
125 PSI (8.6 Bar)
Enclosure Rating
NEMA 4X (IP66)
Standards
CE, cETLus
Control Methods
Manual, Remote Analog/Digital, EtherNet/IP, Modbus TCP/IP, PROFIBUS
Power Supply
100 to 240VAC-50/60Hz
3D Visualizer

Features

Benefits:
  • 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) built-in leak detection comes standard
  • Modular roller design allows for simple tube changes without needing a tool.
  • Optional dual channel tube design for optimum performance and pressure capability
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
    • PROFIBUS
    • Alarm Outputs
    • FVS
    • Relay Ouput
Superior Design:
  • 2 Year Warranty
  • 2,500:1 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 by detecting chemical in the pump head. No false triggering – Patented
  • Security programmable 6-digit password to prevent tampering
Optional Components Available:
  • Mounting Extended Brackets (72000-380) – 1 Pair, SS, 4 SS Screws
What’s Included:
  • A3 Peristaltic Metering Pump
  • Two tube assemblies
  • With “S” 3/8” OD x ¼” ID tubing compression type connections:
    • Suction tube – clear PVC – 10′ length (3/8″ OD, 1/4″ ID)
    • Suction strainer
    • Suction ceramic weight
    • Discharge tube – opaque polyethylene – 10′ length (3/8″ OD, 1/4″ ID)
    • Discharge injection fitting with check valve
  • With “B” ½” hose barb and “M” M/NPT type connections:
    • Suction strainer
    • Discharge injection fitting with check valve
    • #5 hose clamp (“B” Only)
  • With “C” Tri-clamp and “Q” Quick Disconnect connections:
    • No accessories provided
  • Tube installation tool
  • Mounting hardware kit
  • Junction box connectors

Output

Tube Material / Size Feed Rate MaxSpeed MaxPressure MaxTemperature Required Roller Assembly
GPH LPH ML/Min RPM PSI (bar) °F (°C) Code
Flex-A-Prene®
ND .001 – 2.1 .003 – 7.8 .06 – 132 125 125 (8.6) 185 (85) A3-SND-R
NEE .002 – 4.76 .007 – 18.0 .12 – 300 125 110 (7.6) 185 (85) A3-SNGG-R
NGG .007 – 19.02 .026 – 72.0 .48 – 1200 125 110 (7.6) 185 (85) A3-SNGG-R
NHL .006 – 17.39 .022 – 65.8 .38 – 1097 125 65 (4.5) 185 (85) A3-SNGG-R
NK .013 – 33.3 .050 – 126.0 .82 – 2100 125 125 (8.6) 185 (85) A3-SNGG-R
NKL .013 – 33.3 .050 – 126.0 .82 – 2100 125 30 (2.1) 185 (85) A3-STH-R
Flex-A-Chem®
TH .006 – 15.06 .022 – 57.0 .38 – 950 125 50 (3.4) 130 (54) A3-STH-R
TK .011 – 28.5 .043 – 108 .72 – 1800 125 50 (3.4) 130 (54) A3-SNGG-R
Flex-A-Thane®
GE .002 – 4.60 .007 – 17.4 .13 – 290 125 65 (4.5) 130 (54) A3-SGE-R
GG .004 – 10.1 .015 – 38.4 .25 – 637 125 65 (4.5) 130 (54) A3-SGE-R
G2G .007 – 18.23 .03 – 69.0 .46 – 1150 125 65 (4.5) 130 (54) A3-SGE-R
GH .010 – 24.9 .038 – 94.2 .63 – 1570 125 65 (4.5) 130 (54) A3-SGE-R
GK .011 – 28.5 .043 – 108.0 .72 – 1800 125 65 (4.5) 130 (54) A3-SGE-R

Specifications

Maximum Working Pressure (excluding pump tubes)
  • 125 psig (8.6 bar)
  • NOTE: see individual pump tube assembly max. pressure ratings.
Maximum Fluid Temperature (excluding pump tubes)
  • 185 °F (85 °C)
  • NOTE: see individual pump tube assembly max. temperature ratings.
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)
Maximum Viscosity
  • 12,000 Centipoise
Maximum Suction Lift
  • 30 ft. Water, 0 psig (9.14 m, 0 bar)
Operating Voltage
  • 115VAC/60Hz, 1ph (2.0 Amp Maximum)
  • 230VAC/60Hz, 1ph (1.0 Amp Maximum)
  • 220VAC/50Hz, 1ph (1.0 Amp Maximum)
  • 240VAC/50Hz, 1ph (1.0 Amp Maximum)
  • 230VAC/50Hz, 1ph (2.0 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)
Motor
  • Brushless DC
Motor Speed Adjustment Range
  • 2,500:1 (0.04% – 100%) Max rpm = 125 rpm
Motor Speed Adjustment Resolution
  • 0.1% increments > 1% motor speed and < 100%
  • 0.04% increments < 1% motor speed
Display
  • 5″ touchscreen color LCD, UV resistent
Display Languages
  • English, Spanish, French, German, and Portuguese selectable
Keypad
  • Ten button positive action tactile switch keypad
Security
  • Programmable 6-digit password
Maximum Overall Dimensions
  • 8-1/4″W x 11-3/4″H x 13-1/4″D (20.9W x 29.8H x 34.5D cm)
Product Weight
  • 25.4lb. (11.5 Kg)
Approximate Shipping Weight
  • 30 lb. (13.6 Kg)
Enclosure
  • NEMA 4X (IP66) wash-down, chemically resistant enclosure
RoHS Compliant
  • Yes
Standards
  • cETLus, CE

Accessories

KIT-DP3
$219.00
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72000-380
$84.00
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KIT-QBV
$487.00
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KIT-QBE
$487.00
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KIT-QME
$487.00
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KIT-QMV
$487.00
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KIT-QSV
$487.00
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KIT-QSE
$487.00
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KIT-M12
$157.00
Add to cart
CABLE-UAC
$65.00
Add to cart
KIT-PSM
$341.00
Add to cart

Replacement Parts

ImageCatalog NumberDescriptionPriceBuy

Downloads

Title
3 Series Roller Assembly – 80000-195
1.37 MB September 18, 2024
A3 | A4 Brochure – 80000-713
6.18 MB April 16, 2024
A3 A4 Technical Data Sheet – 85000-098 [LEGACY]
730 KB February 14, 2024
A3 Engineering Specifications
978.00 KB November 4, 2024
A3 Instruction Manual – 80000-418
13.25 MB May 5, 2025
A3 Replacement Parts List
491 KB February 10, 2022
A3 Technical Data Sheet – 85000-099
1.53 MB February 25, 2025
A3F A4F Instruction Manual – 80000-419 [LEGACY]
2.86 MB February 14, 2024
A3V A4V Instruction Manual – 80000-463 [LEGACY]
3.61 MB April 15, 2024
FLEXFLO Pump EDS File
11 KB February 21, 2024
FLEXFLO Pump GDS File
2 KB February 21, 2024
FLEXFLO® Industrial Comparison Chart
3.31 MB May 15, 2025
Industrial Accessories Guide – 85000-179
994.07 KB November 4, 2024
Industrial Catalog 2025 – 80000-707
17.00 MB May 16, 2025
Industrial Products Brochure
3.09 MB May 9, 2025
Industrial Tubing Selection Guide – 85000-120
0.98 MB May 5, 2025
Peristaltic Pump Tubing Brochure – 80000-726
3.75 MB April 16, 2024
Pump to Skid Adapter Kits – 85000-198
340.02 KB August 6, 2024
Tube Failure Detection (TFD) Brochure – 80000-724
2.31 MB April 16, 2024

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