FlexFlo A-100NA 145N 115V -7T 1 MIN

The Blue-White Industries FlexFlo A-100NA (Model A-100NA-145N / A-100N Series) with -7T Flex-A-Prene Tubing and 1-Minute Cycle Timer is a commercial-grade, high-capacity peristaltic chemical metering pump engineered for precise chemical dosing in commercial aquatic automation, water treatment, and municipal disinfection systems.

Combining a dedicated 45 RPM gear-motor drive package (145N) with the high-output, large-bore #7T Flex-A-Prene tube assembly, this model delivers up to 72.0 to 75.0 GPD (Gallons Per Day) against system discharge backpressures up to 30 to 40 PSI (2.1 to 2.8 bar). The 45 RPM motor speed provides a calibrated compromise between the ultra-high-speed 60 RPM units (which wear tubes faster) and 30 RPM units (which limit peak throughput), while the integrated 60-second repeating cycle timer allows precise, on-pump output trimming when operated alongside Pool Link 500/1000 Series chemical automation controllers.

Nomenclature & Model Decoding

• FlexFlo A-100NA: Blue-White peristaltic metering platform with analog electronic cycle-timer regulation.

• 145N: Drive package and electrical specification:

  • 1: 115V AC / 60 Hz electrical service (pre-wired with NEMA 5-15 3-prong grounded plug).

  • 45: 45 RPM gear-motor assembly (delivering high volumetric output with reduced tube fatigue compared to 60 RPM motors).

  • N: Standard non-programmable analog electronic control module.

• -7T: #7T Flex-A-Prene (Santoprene-grade) heavy-wall, large-bore pump tube assembly with 3/8" OD compression connection fittings.

• 1 MIN (1-Minute Cycle Timer): Internal solid-state percentage duty-cycle timer operating over a continuous 60-second time window (approx. 0.6 seconds to 60 seconds run-time per minute).

Mechanical Architecture & Operational Dynamics

• Solid-State 1-Minute Cycle Timer: Features an analog potentiometer dial indexed from 1% to 100%. Over each 60-second interval, the pump energizes the motor for the selected percentage of the minute and shuts off for the remainder (e.g., at 50%, it runs for 30 seconds and rests for 30 seconds). This avoids batch slug-dosing while maintaining steady chemical concentration in the pool return line.

• Calibrated 45 RPM Drive Dynamics: The 45 RPM motor speed allows the large-bore #7T tube to generate substantial chemical volume (up to 75 GPD) while keeping linear roller friction and flex fatigue significantly lower than full-speed 60 RPM units, resulting in longer intervals between tube ruptures.

• Off-Gas & Vapor Lock Immunity: The continuous-pinch peristaltic design pushes off-gassing oxygen bubbles ($O_2$ from liquid chlorine) and fuming hydrochloric acid vapors ($HCl$) directly through the discharge line, completely eliminating the air-binding vulnerabilities of diaphragm pumps.

• Self-Priming & Natural Anti-Siphon Barrier: Capable of pulling a vertical suction lift up to 30 feet of water. The planetary rollers maintain a positive mechanical compression seal against the tube track at all times, preventing gravity siphoning into the filtration loop without requiring separate spring-loaded check valves.

• Chemical Isolation: Fluid contacts only the inner bore of the #7T Flex-A-Prene tube, polyethylene suction/discharge piping, and the injection check valve quill, keeping motor windings and drive gears completely isolated from corrosive liquids and fumes.

Technical Specifications

• Max Output Capacity: Up to 72.0 – 75.0 GPD (approx. 3.00 – 3.13 GPH / 189 – 197 mL/min / 272.5 – 283.9 L/day) at 100% continuous runtime.

• Turndown Range: 0.75 to 75.0 GPD (1% to 100% duty cycle via 1-minute repeating timer).

• Maximum Discharge Backpressure: 30 to 40 PSI (approx. 2.07 to 2.76 bar).

• Electrical Service: 115V AC, 60 Hz, 1-Phase, approx. 0.40 to 0.50 A operating draw.

• Pump Head Tube: #7T Flex-A-Prene Tube Assembly with quick-disconnect compression nuts.

• Suction / Discharge Plumbing: 3/8" OD UV-resistant white opaque or clear braided polyethylene tubing.

• Duty Cycle: Continuous or intermittent duty-cycle rated; fully compatible with external powered relays or dry-contact outputs from Pool Link 500/1000 Series chemical controllers.

• Operating Ambient Limits: 14°F to 115°F (-10°C to 46°C); process liquid temperature up to 130°F (54°C).

Flow Output vs. 1-Minute Timer Setting (#7T Tube @ 30–40 PSI, 45 RPM)

Maintenance & Consumables

• Tube Replacement Interval: Replace the #7T Flex-A-Prene tube assembly every 800 to 1,500 run hours under typical commercial aquatic operational cycles.

• Roller Assembly Lubrication: Clean the planetary roller tracks and apply silicone grease or manufacturer-approved synthetic lube during every tube change to prevent jacket friction and tube scrubbing.

• Injection Fitting Maintenance: Inspect the duckbill check valve quill at the pipe saddle or tap every 3 to 6 months for calcium carbonate scaling, hypochlorite crystallization, or mineral hardening.

Weight and Logistics Profile

• Net Unit Weight: Approximately 8.4 to 9.4 pounds (approx. 3.81 to 4.26 kg).

• Physical Footprint: Approximately 10.5" L × 6.5" W × 7.0" H (approx. 26.7 cm × 16.5 cm × 17.8 cm).

• Packaged Shipping Dimensions: Heavy parcel box measuring approximately 14" L × 10" W × 10" H.

• Packaged Shipping Weight: Approximately 11.4 to 12.4 pounds (approx. 5.17 to 5.62 kg), complete with accessory kit:

  • 20-foot roll of 3/8" OD white UV-resistant polyethylene feed tubing.

  • Weighted ceramic suction foot strainer.

  • 1/2" NPT male injection fitting with integral duckbill check valve.

  • Wall/shelf mounting bracket and hardware.

• Logistics Handling: Ships via standard ground and air parcel carriers (UPS, FedEx, USPS).