Shanghai HL-4 Single-Channel Peristaltic Pump (Split-Design, High-Flow)
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Regional Origin | Domestic (PRC) |
| Model | HL-4 |
| Price | USD 450 (FOB Shanghai) |
| Flow Rate Range | 60–18,000 mL/h |
| Maximum Back Pressure | ≥2 kg/cm² |
| Drive Speed Range | 0–155 rpm (infinitely variable, analog or digital control depending on variant) |
| Pump Head Dimensions | 120 × 120 × 180 mm |
| Controller Dimensions | 260 × 200 × 120 mm |
| Channel Configuration | Single-channel, split-body design |
| Compliance | CE-marked per EN 61000-6-2/6-3 |
Overview
The Shanghai HL-4 Single-Channel Peristaltic Pump is an industrial-grade, split-design peristaltic pump engineered for continuous, high-flow liquid transfer in laboratory and light industrial environments. Operating on the principle of positive displacement via roller compression of flexible tubing, the HL-4 delivers precise, pulse-minimized flow without fluid contact with mechanical components—ensuring contamination-free operation and eliminating the need for valves, seals, or lubricants. Its robust architecture supports stable flow rates across a wide dynamic range (60–18,000 mL/h), making it suitable for applications requiring both low-volume precision dosing and high-throughput recirculation. Designed for long-term reliability under intermittent or continuous duty cycles, the HL-4 integrates seamlessly into OEM systems, environmental monitoring stations, bioprocessing workflows, and academic teaching labs where maintenance simplicity and chemical compatibility are critical.
Key Features
- Split-body configuration: Physically decoupled pump head and controller unit enable flexible installation—ideal for confined spaces, glove boxes, or integration into custom enclosures.
- Infinitely variable speed control: Analog potentiometer or optional digital interface (HL-4B/D variants) allows fine-tuned adjustment from 0 to 155 rpm, translating directly to linear flow modulation across the full 60–18,000 mL/h range.
- High back-pressure tolerance: Sustains ≥2 kg/cm² (≈0.2 MPa) static pressure—sufficient for pumping viscous aqueous solutions, diluted suspensions, or elevated-head gravity-fed systems.
- Timer functionality (HL-4D): Programmable start/stop intervals with resolution down to 1 second; maximum timing window: 99 minutes 59 seconds—enabling unattended batch delivery or synchronized multi-step protocols.
- Tubing compatibility: Accepts standard peristaltic tubing sizes (e.g., Tygon® L/S 24, PharMed® BPT, silicone 16–25 mm ID); tube life optimized via calibrated roller geometry and consistent occlusion pressure.
- Thermal and EMC resilience: Fanless operation with aluminum alloy housing; meets EN 61000-6-2 (immunity) and EN 61000-6-3 (emission) standards for laboratory electromagnetic environments.
Sample Compatibility & Compliance
The HL-4 is compatible with a broad spectrum of non-aggressive liquids—including water, buffers, dilute acids/bases (pH 2–12), ethanol/water mixtures, and low-viscosity biological media—provided appropriate tubing material is selected. It is not rated for organic solvents (e.g., acetone, chloroform), strong oxidizers, or abrasive slurries unless upgraded to HL-4A-spec tubing and drive assembly. The device complies with EU directives for electrical safety (EN 61010-1:2010) and electromagnetic compatibility, and carries CE marking. While not validated for GMP or FDA 21 CFR Part 11 environments out-of-the-box, its analog control architecture supports external audit-trail integration via PLC or SCADA systems when deployed in regulated QC/QA settings.
Software & Data Management
The base HL-4 operates via standalone hardware controls and does not include embedded firmware or USB/RS-485 connectivity. However, HL-4B and HL-4D variants support optional analog 0–5 V or 4–20 mA input/output for remote speed setpoint control and flow feedback integration. For data logging, users may pair the pump with third-party DAQ systems (e.g., National Instruments USB-6009, LabJack T7) using TTL-compatible pulse output (if equipped) or external flow meters. No proprietary software is required or bundled; all operational parameters are manually configured and retained without volatile memory dependency—enhancing system stability in mission-critical or resource-constrained deployments.
Applications
- Environmental analysis: Continuous sampling from wastewater streams, leachate collection, or inline filtration feed control.
- Life sciences: Media perfusion in cell culture bioreactors, buffer delivery in chromatography prep systems, and reagent dispensing in ELISA or PCR setup workflows.
- Education: Demonstrating fluid dynamics principles, pump calibration exercises, and mass-balance experiments in undergraduate engineering and chemistry laboratories.
- Clinical & diagnostic labs: Automated sample dilution, wash buffer circulation in immunoassay platforms, and dialysate delivery in portable renal research units.
- Industrial R&D: Pilot-scale additive dosing in polymerization reactors, coolant recirculation in thermal testing rigs, and catalyst slurry feeding in heterogeneous catalysis studies.
FAQ
What tubing sizes are recommended for optimal performance at maximum flow (18,000 mL/h)?
For sustained operation at >10,000 mL/h, Tygon® L/S 24 (ID 6.4 mm) or equivalent silicone tubing with wall thickness ≥1.6 mm is recommended. Tubing selection must balance flow capacity, pulsation dampening, and chemical resistance.
Can the HL-4 be operated in reverse direction?
No—the HL-4 uses a fixed-rotation motor and asymmetric roller geometry optimized for forward flow only. Reversal is not supported and may damage tubing or reduce occlusion consistency.
Is calibration traceable to NIST or ISO standards?
The HL-4 is supplied with factory-set speed-to-flow correlation curves based on standard Tygon® L/S 17 tubing. End-user calibration using gravimetric or volumetric methods is required for application-specific accuracy; no NIST-traceable certificate is included.
Does the pump meet IP rating requirements for humid environments?
The pump head has no ingress protection rating (IP00); the controller is rated IP20. Installation in high-humidity or splash-prone areas requires supplemental enclosure (e.g., NEMA 12 cabinet) or conformal coating of PCBs.
What is the expected service life of the drive mechanism under continuous operation?
Rated for >10,000 hours MTBF (mean time between failures) at 70% of maximum speed (≤110 rpm) and ambient temperatures ≤40°C, assuming proper ventilation and periodic roller alignment verification every 6 months.
