A2A FLEXFLO Peristaltic Metering Pump for Commercial Aquatics

Deliver precise chemical feed with a pump built for pool decks and mechanical rooms. FLEXFLO® peristaltic technology moves liquid with a rotating roller assembly that squeezes a flexible tube—so the chemical only touches the tube, not the pump body. That means accurate dosing, gentle handling, and no check-valve sticking from crystals or debris. In commercial pools and spas, FLEXFLO® pairs seamlessly with ORP/ppm/pH controllers to automate feed of liquid chlorine (sodium hypochlorite), acid/CO₂ alternatives, enzymes, metal removers, and specialty chems—keeping readings steady through peak loads.

Day to day, it’s built for uptime: quick tube swaps without tools, self-priming operation that handles off-gassing liquids better than diaphragm pumps, and clear status/readout so staff can confirm setpoint, run mode (manual/remote), and alarms at a glance. Wall or shelf mount the unit, connect suction/discharge, prime, and you’re feeding with smooth, pulse-free flow that keeps water balanced and guests comfortable.

Key highlights

• Peristaltic dosing: liquid touches only the tube for cleaner, low-maintenance operation

• Accurate, smooth feed ideal for hypochlorite and acid where gas/scale challenge diaphragm pumps

• Self-priming & tolerant of off-gassing—great for sodium hypochlorite on warm decks

• Easy tube changes (tool-free) to restore performance in minutes

• Controller-ready: accepts on/off or speed-control signals (bundle/model dependent) from ORP/ppm/pH systems

• Dry-run friendly (tube only) vs. rigid check assemblies; fewer clog points

• Commercial build with splash-resistant housing for natatoriums and outdoor pads

Common applications

• Automated feed of liquid chlorine for ORP/ppm control

• pH control with acid feed (or used alongside CO₂ systems)

• Specialty dosing: enzymes, metal sequestrants, clarifiers (per manufacturer guidance)

Install notes

• Mount pump below the chemical tank outlet when possible for reliable prime; use weighted suction and injection/check valve rated for your chemistry.

• Add suction/discharge strain relief and route lines away from heat and UV where possible.

• For hypochlorite, use opaque tubing runs and keep tanks covered to reduce off-gassing.

• Pair with a spill tray and label lines/tanks to meet facility safety policies.

• Calibrate output with a graduated cylinder and timer; set controller alarms and interlocks.

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:

• Model: A2A24-SNEE 1.32 – 132 GPD (.21 – 20.8 LPH) and pressures to 50 PSI (3.4 Bar).
• Model: A2A24-SNGG 3.81 – 381.6 GPD (.602 – 60.2 LPH) and pressures to 40 PSI (2.8 Bar).
• Inject at maximum pressure in either direction (clockwise and counter-clockwise).

Communication & Interface:

• Accurate adjustability touchpad and digital display.
• Remote Start/Stop: Non-powered dry contact closure for remote start/stop.
• Relay outputs: 250VAC / 3A or 30VDC / 3A.
• Compatible with Blue-White’s output Flow Verification Sensor (FVS) system.

Superior Design:

• 2-Year Warranty
• Flex-A-Prene® Dual-Channel Tubing with more than 4× longer tube life compared to conventional single-channel tubes.
• Two CNC precision-machined squeeze rollers and two alignment rollers for optimum squeeze, accuracy, and tube life.
• Heavy-duty single-piece rotor (no metal springs or hinges to corrode).
• Variable-speed DC motor.

Safety Features:

• Patented Tube Failure Detection (TFD) system senses tube failure by detecting chemical in the pump head (no false triggering).
• Patented safety switch protects the operator during regular pump head maintenance.

What’s Included:

• A2A Acid and Liquid Chlorine Feeder
• Two tube assemblies
• Discharge injection fitting with check valve
• With “S” 3/8” OD × ¼” ID tubing compression-type connections:
  • Suction tube – clear PVC – 5′ length (3/8″ OD, 1/4″ ID)
  • Suction foot valve / strainer
  • Suction ceramic weight
  • Discharge tube – opaque polyethylene – 5′ length (3/8″ OD, 1/4″ ID)
• Tube installation tool
• Mounting hardware kit
• Junction box connectors
• Tube nuts (x2)

Specifications

• Maximum Working Pressure (excluding pump tubes):
  • 50 psig (3.4 bar)
  • NOTE: See individual pump tube assembly maximum pressure ratings.
• Maximum Suction Lift:
  • 30 ft of water at sea level (14.7 atm psi)
• Ambient Operating Temperature:
  • 14°F to 125°F (-10°C to 52°C)
• Ambient Storage Temperature:
  • -40°F to 158°F (-40°C to 70°C)
• Operating Voltage:
  • 115VAC 50/60Hz, 1ph (1.5 A max)
  • 230VAC 50/60Hz, 1ph (0.7 A max)
  • 220VAC 50/60Hz, 1ph (1.0 A max)
  • 240VAC 50/60Hz, 1ph (1.0 A max)
• Power Cord Options:
  • 115V 50/60Hz = NEMA 5/15 (USA)
  • 230V 50/60Hz = NEMA 6/15 (USA)
  • 220V 50/60Hz = CEE 7/VII (EU)
  • 240V 50/60Hz = AS 3112 (AU/NZ)
• Motor: Brushed DC, 1/8 HP
• Duty Cycle: Continuous
• Motor Speed Adjustment Range (100:1): 1.0% – 100% (1.3–130 RPM)
• Enclosure: NEMA 4X (IP66), polyester powder-coated aluminum
• Maximum Overall Dimensions: 7-1/2” W × 10-1/4” H × 14” D (19 W × 26 H × 35.6 D cm)
• Product Weight: 28.4 lb (12.9 kg)
• Approx. Shipping Weight: 35 lb (15.9 kg)