PreFluid WL100 Precision Peristaltic Pump

Overview

The PreFluid WL100 Precision Peristaltic Pump is an engineered solution for accurate, repeatable, and contamination-free fluid delivery in laboratory, pilot-scale, and industrial process applications. Based on the well-established peristaltic principle—where rollers compress flexible tubing to displace fluid without contacting internal pump components—the WL100 ensures complete fluid isolation, eliminating cross-contamination risks and simplifying cleaning and validation procedures. Designed for integration into analytical workflows, chemical synthesis systems, and continuous manufacturing lines, this pump delivers high reproducibility across its full operational range (0.012–281 mL/min) while maintaining mechanical stability under variable backpressure conditions. Its brushless DC motor architecture provides consistent torque output independent of speed, enabling reliable low-flow precision and extended service life without carbon brush wear or periodic maintenance.

Key Features

• Brushless DC motor drive: Delivers high starting torque, low thermal rise, and silent operation (<45 dB[A] at 1 m); rated for continuous duty with no scheduled brush replacement.
• Modular pump head design: KZ15 and YZ15 heads accommodate standard Norprene®, Viton®, and silicone tubing sizes (#13–#25), supporting compatibility with USP Class VI, FDA-compliant, and chemically resistant materials.
• Intelligent tubing clamping mechanism: Self-aligning rollers and spring-loaded compression ensure uniform occlusion force across tubing diameters—reducing tube fatigue and extending service life by up to 3× versus manual-set alternatives.
• Dual-head expandability: Supports daisy-chained configuration via synchronized control, enabling parallel or series pumping modes for higher throughput or pressure-boosted delivery.
• IP54-rated enclosure: Sealed metal chassis with electrophoretic coating resists corrosion from solvents, acids, and humid environments; suitable for ISO Class 7 cleanroom-adjacent use and fume hood installations.
• Full-parameter LCD interface: Real-time display of speed (rpm), flow rate (mL/min), elapsed time, total dispensed volume (mL), and system status; English/Chinese language toggle for global lab personnel.
• Embedded control logic: Onboard timer, volumetric dosing, and programmable start/stop sequences meet GLP-aligned documentation requirements; retains last-run parameters after power interruption.

Sample Compatibility & Compliance

The WL100 is compatible with a wide spectrum of elastomeric tubing materials validated for biopharmaceutical, food-grade, and aggressive chemical handling—including Santoprene™, Pharmed® BPT, and Tygon® E-3603. Its non-invasive fluid path meets ISO 8573-1 (compressed air purity) and ASTM D4169 (packaging performance) prerequisites for sterile transfer validation. While not certified as IEC 61000-6-3 compliant out-of-box, the pump’s RS485 Modbus RTU interface supports integration into FDA 21 CFR Part 11–compliant SCADA architectures when paired with audit-trail-enabled host software. It conforms to IEC 61010-1 for electrical safety in laboratory equipment and operates within EN 61326-1 electromagnetic compatibility limits for Class A environments.

Software & Data Management

The WL100 supports both local and remote operation through multiple control layers. Local interaction occurs via intuitive keypad navigation with tactile feedback and context-sensitive soft keys. For automated systems, the RS485 port implements standard Modbus RTU protocol (slave ID configurable, baud rates 9600–115200 bps), enabling seamless integration with PLCs, LabVIEW™, Python-based control scripts, or LIMS platforms. Optional 4–20 mA analog input allows analog setpoint modulation from external sensors (e.g., pH or conductivity controllers), facilitating closed-loop feedback dosing. All parameter changes, run logs, and fault events are timestamped internally; data export requires external polling via Modbus function codes (e.g., Read Holding Registers 40001–40020). No onboard data storage or cloud connectivity is provided—ensuring data sovereignty and alignment with institutional IT security policies.

Applications

• Quantitative reagent addition in titration, spectrophotometric assays, and HPLC mobile phase blending.
• Controlled feeding of catalysts or initiators in exothermic polymerization reactors.
• Continuous nutrient dosing in bioreactor perfusion systems and algae cultivation platforms.
• High-viscosity adhesive metering in packaging line priming stations (e.g., label applicators requiring <±1% volumetric accuracy at 50 mL/min).
• Sampling loop filling in online process analyzers (e.g., NIR, Raman) where tubing wetting must be minimized between batches.
• Corrosive liquid transfer in electroplating baths and etching stations where metal contact with fluid is prohibited.

FAQ

What tubing sizes are supported by the KZ15 and YZ15 pump heads?
The KZ15 head accommodates tubing IDs from 0.51 mm (#13) to 3.18 mm (#25); the YZ15 supports IDs from 0.76 mm (#14) to 3.18 mm (#25). Both are optimized for wall thicknesses conforming to DIN 73378 and Cole-Parmer tubing standards.
Does the WL100 support pulseless flow or sinusoidal speed profiling?
No—it operates in constant-speed or stepped-ramp mode only. For pulsation-sensitive applications, external dampening (e.g., accumulator chambers or dual-pump interleaving) is recommended.
Can the pump be used in GMP-regulated environments?
Yes, when deployed with documented tubing qualification, calibration against gravimetric standards (e.g., ASTM E287), and integrated into a validated control system with electronic audit trails.
Is firmware upgrade capability available?
Firmware updates are performed exclusively via RS485 using PreFluid’s proprietary PC utility; no over-the-air or USB update path is provided.
What is the maximum sustainable backpressure at 281 mL/min?
At full speed with #25 tubing (3.18 mm ID, 1.59 mm wall), typical maximum backpressure is 0.25 bar (3.6 psi); performance degrades linearly above this threshold due to tubing rebound limitations.