HL-5A Single-Channel High-Flow Peristaltic Pump
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | HL-5A |
| Flow Rate Range | 5,000–200,000 mL/h |
| Maximum Back Pressure | ≥2 kg/cm² (≈196 kPa) |
| Dimensions (W×D×H) | 240 × 280 × 170 mm |
| Control Interface | Microprocessor-Based Digital Display with Speed Memory Function |
| Channel Configuration | Single-Channel |
Overview
The HL-5A Single-Channel High-Flow Peristaltic Pump is a robust, microprocessor-controlled peristaltic pump engineered for continuous, precise fluid delivery in industrial and laboratory-scale applications requiring high volumetric throughput. Operating on the principle of occlusion-based positive displacement—where rollers compress flexible tubing against a curved housing to generate unidirectional flow—the HL-5A delivers pulse-free, contamination-free transfer without valving or seals contacting the fluid path. Its design prioritizes operational stability under sustained duty cycles, making it suitable for applications such as bulk reagent dosing, fermentation feed control, wastewater sampling, and inline process circulation where sterility, chemical compatibility, and maintenance simplicity are critical. Unlike diaphragm or centrifugal pumps, the HL-5A eliminates risk of cross-contamination and avoids lubricant ingress, ensuring compliance with Good Laboratory Practice (GLP) and basic GMP-aligned workflows.
Key Features
- Wide adjustable speed range enabling precise flow rate modulation across 5,000–200,000 mL/h—optimized via calibrated tubing selection and rotational speed control
- Integrated digital display showing real-time motor RPM, supporting rapid parameter verification and repeatable setup recall
- Non-volatile memory function retains last-used speed setting after power cycling, reducing startup configuration time
- Rugged aluminum alloy chassis and reinforced polymer housing provide mechanical stability during extended operation and resist ambient vibration
- Modular tube-loading mechanism accommodates standard peristaltic tubing sizes (e.g., PharMed® BPT, Norprene®, Tygon® LFL) with quick-release rollers for rapid tubing replacement
- Thermally protected DC motor with overload sensing ensures safe operation under variable back-pressure conditions up to ≥196 kPa (2 kg/cm²)
Sample Compatibility & Compliance
The HL-5A is inherently compatible with a broad spectrum of aqueous, mildly corrosive, and shear-sensitive fluids—including cell culture media, buffer solutions, polymer emulsions, and low-viscosity organic solvents—provided appropriate tubing material is selected. It does not support high-temperature, high-vacuum, or abrasive slurry applications. While not certified to IEC 61000-6-2/6-4 or UL 61010-1 out-of-the-box, its electrical architecture meets CE-marking prerequisites for laboratory equipment when installed in accordance with local wiring codes. The pump supports traceable operation when integrated into systems compliant with FDA 21 CFR Part 11 requirements via external data logging interfaces (e.g., analog 0–10 V or 4–20 mA output signals, optional RS-485 Modbus RTU module).
Software & Data Management
The HL-5A operates as a standalone instrument with no embedded firmware-based software stack; all control logic resides in dedicated microcontroller hardware. Flow calibration is performed manually using gravimetric or volumetric methods per ISO 8599 or ASTM D3231 standards. For system integration, analog voltage or current outputs enable connection to programmable logic controllers (PLCs), SCADA platforms, or custom LabVIEW-based acquisition environments. Optional communication modules support Modbus RTU over RS-485, permitting remote start/stop commands, speed setpoint adjustment, and status polling within automated process control architectures. Audit trails must be maintained externally, as the device itself does not store timestamps or user-action logs.
Applications
- Continuous feeding of nutrient media in bioreactor pilot systems (5–200 L working volume)
- Automated sampling from municipal or industrial effluent streams at fixed intervals
- In-line dilution and blending in water treatment pilot plants
- Delivery of catalyst slurries or wash solutions in solid-phase synthesis reactors
- Recirculation loops for temperature-controlled bath systems requiring >50 L/h throughput
- Low-shear transfer of sensitive biological suspensions where rotor-stator homogenization would induce damage
FAQ
What tubing sizes are compatible with the HL-5A pump head?
Standard pump heads accept tubing with inner diameters ranging from 3.2 mm to 16 mm, depending on roller configuration and required flow profile. Recommended wall thickness: 1.6–3.2 mm.
Can the HL-5A operate continuously for 24/7 duty cycles?
Yes—when installed in environments with ambient temperatures ≤40 °C and adequate ventilation, the pump is rated for uninterrupted operation with routine tubing replacement every 500–1,000 hours based on fluid chemistry and pressure load.
Is the flow rate linearly proportional to rotational speed?
Within a given tubing type and pressure condition, flow exhibits high linearity vs. RPM (R² > 0.998), though calibration against actual delivered volume is recommended for quantitative applications per ISO 5725 precision guidelines.
Does the HL-5A include overload or dry-run protection?
It features motor thermal cutout but lacks flow-sensing or dry-run detection; external flow switches or pressure transducers are advised for fail-safe monitoring in critical processes.
How is accuracy affected by back pressure?
At pressures approaching the 196 kPa maximum rating, volumetric accuracy may decrease by ≤3% due to tubing compression hysteresis—calibration at operating pressure is strongly advised.
