A1

CHEM-FEED® Multi-Diaphragm Metering Pump

The FLEXFLO® A1 Peristaltic Metering Pump delivers reliable chemical feed with simple-to use-controls and precise adjustability.  Ideally suited for low to medium flow applications, this compact and rugged self-priming pump delivers smooth chemical feed and does not require check valves or seals that can clog, leak, or corrode.

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

The “A1C” Control model features 4–20 mA input and output, remote start/stop, alarm relay output, and flow verification sensor compatibility (MS6 or MICRO-FLO), while the “A1B” Base model is designed for manual, stand-alone operation with no I/O.

Technical Overview:

GPH
.003 - 5.6
LPH
.011 - 21.2
mL/min
.1833 - 353
Pressure
100 PSI (6.9 Bar)
Enclosure Rating
NEMA 4X
Standards
CE, cETLus, RoHS
Control Methods
Manual, Remote Analog
Power Supply
100 to 240VAC-50/60Hz
Overview

Key Features

Benefits of a Peristaltic Pump

  • 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.

Capabilities

  • Output rates to: .003 – 5.6 GPH (.011 – 21.2 LPH) and pressures to 100 PSI (6.89 Bar).

Communication & Interface (Included with “C” Control)

  • Input: 4–20 mA external control
  • Input: Remote Start/Stop via non-powered dry contact closure
  • Input: Flow verification input compatible with MS6 and MICRO-FLO sensors
  • Output: Alarm relay output, 250V / 3A
  • Output: Motor On/Off solid-state relay output
  • SCADA-compatible 4–20 mA input and output (Included with A1C only)

Superior Engineered Design

  • 2 Year Warranty
  • CNC precision-machined squeeze 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.
  • Energy-efficient brushless DC motor.
  • Specially engineered tubing for long life.
  • Snap-in-place wall and floor mounting bracket – Patent pending
Performance Data

Output Table

Tube Model Feed Rate MaxSpeed MaxPressure MaxTemperature Required Roller Assembly
GPH LPH ML/Min RPM PSI (bar) °F (°C) Code
A1-1* .001 – 1.09 .002 – 4.13 .035 – 69 65 65 (4.50) 130 (54) 71000-350
A1-3* .003 – 5.60 .011 – 21.2 .176 – 353 65 50 (3.45) 130 (54) 71000-350
A1-4* .001 – 0.44 .001 – 1.68 .014 – 28 65 100 (6.89) 130 (54) 71000-159
A1-6* .001 – 1.35 .003 – 5.14 .043 – 85 65 100 (6.89) 185 (85) 71000-159
A1-7* .004 – 4.17 .0158 – 15.8 .132 – 263 65 50 (3.45) 185 (85) 71000-350
A1-8* .003 – 3.09 .0117 – 11.7 .098 – 195 65 50 (3.45) 130 (54) 71000-255
Technical

Specifications

Maximum Working Pressure
100 psig
6.89 bar
Maximum Fluid Temperature
185 °F
85 °C
Maximum Ambient Temperature
14 °F to 115 °F/ -10 °C to 46 °C
Maximum Viscosity
5,000 Centipoise
Maximum Suction Lift
30 ft. Water at sea level
14.7 atm psi
Operating Voltage
  • 115V60Hz 1 PH (0.6A max.)
  • 220V50Hz 1 PH (0.3A max.)
  • 230V60Hz 1 PH (0.3A max.)
  • 230V50Hz 1 PH (0.3A max.)
  • 240V50Hz 1 PH (0.3A max.)
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, 50W
Duty Cycle
Continuous
Motor Speed Adjustment Resolution
2,000 : 1 (0.05 – 100%) Max rpm = 65 rpm
Maximum Overall Dimensions
7.25” W x 9” H x 10” D
18.5 W x 22.9 H x 25.2 D cm
Product Weight
6 lb.
2.7 Kg
Approximate Shipping Weight
13 lb.
5.9 Kg
Approximate Shipping Dimensions
10.5” W x 13.75” H x 11” D
26.7 W x 35 H x 28 D cm
Enclosure
NEMA 4X, Valox® (PBT) & PA12
RoHS Compliant
Yes
Standards
cETLus, CE
Order Information

Configure Pump

Purchase

Accessories

Purchase

Replacement Parts

ImageCatalog NumberDescriptionPriceBuy
Documentation

Downloads

Title Type Size Updated Download
Instruction Manual 2 files
A1 Instruction Manual – 80000-609 [LEGACY] PDF 10.3 MB Jan 28, 2026 Download
A1 Instruction Manual – 80000-754 PDF 3.30 MB Sep 11, 2026 Download
Technical Data Sheet 3 files
A1 Technical Data Sheet – 85000-152 [LEGACY] PDF 911 KB Apr 27, 2026 Download
A1 Technical Data Sheet – 85000-206 PDF 897.31 KB Sep 11, 2026 Download
Pump to Skid Adapter Kits – 85000-198 PDF 340.02 KB Sep 11, 2026 Download
Guides 3 files
Industrial Tubing Selection Guide – 85000-120 PDF 0.98 MB Aug 12, 2025 Download
Industrial Accessories Guide – 85000-179 PDF 994.07 KB Sep 9, 2026 Download
80000-752 A1 Quick Start Guide PDF 533.33 KB Dec 31, 2025 Download
Brochure 4 files
Industrial Products Brochure PDF 3.09 MB Mar 13, 2026 Download
A1 Brochure – 80000-712 PDF 5.09 MB Feb 26, 2026 Download
FLEXFLO® Industrial Comparison Chart PDF 3.31 MB Mar 13, 2026 Download
Tube Failure Detection (TFD) Brochure – 80000-724 PDF 2.31 MB Aug 22, 2025 Download
Catalog 1 file
Industrial Catalog 2026 – 80000-707 PDF 17.00 MB Jul 2, 2026 Download
Firmware Update 1 file
A1 Firmware Update ZIP 296 KB Feb 18, 2026 Download
Legacy 2 files
A1 Technical Data Sheet – 85000-152 [LEGACY] PDF 911 KB Apr 27, 2026 Download
A1 Instruction Manual – 80000-609 [LEGACY] PDF 10.3 MB Jan 28, 2026 Download
Replacement Parts List 1 file
A1 Replacement Parts List PDF 558.69 KB May 8, 2026 Download
Sales Brochure 1 file
Industrial Products Brochure PDF 3.09 MB Mar 13, 2026 Download

Request a quote

Please fill out the form to request a quote.
A sales rep will reach out to you.

Select your industry:
How did you hear about us?
Select your industry:
How did you hear about us?

Request a quote

Please fill out the form to request a quote.
A sales rep will reach out to you.

To select or deselect multiple products–desktop users hold [ctrl] on Windows or [cmd] on Mac and click products.

Select Products

Pumps
Flow Meters
Skid Systems

Please review your selections before continuing.

Product Details
Select your industry:
How did you hear about us?
ImageCatalog NumberDescriptionPriceBuy