Masterflex L/S 07016-21 Standard Pump Head

Overview

The Masterflex L/S 07016-21 Standard Pump Head is a precision-engineered peristaltic pump head designed for reliable, repeatable fluid transfer in laboratory, pilot-scale, and industrial process applications. Based on the proven L/S (Larger Size) platform, this pump head operates via positive displacement through sequential compression of flexible tubing by rotating rollers—ensuring zero fluid contact with mechanical components and eliminating risk of contamination or leakage. Its modular design integrates seamlessly with Masterflex L/S series drive units (e.g., 77400-10, 77400-20, 77400-30), supporting up to four pump heads on a single driver for multi-stream parallel operation. The 07016-21 variant is specifically calibrated for L/S 16 tubing (inner diameter 0.8 mm), delivering a nominal per-revolution displacement of 0.8 mL and enabling flow rates from 0.016 to 80 mL/min at 6–600 rpm—ideal for low-to-medium volume dosing, media dispensing, and reagent delivery in analytical and bioprocessing workflows.

Key Features

• Interchangeable housing options: transparent polycarbonate (PC) for visual operational monitoring and chemical-resistant polyphenylsulfone (PPS) for aggressive solvents and elevated temperature environments
• Corrosion-resistant rotor configurations: chrome-plated steel (CRS) for cost-sensitive general-purpose use; stainless steel (SS) for enhanced durability and compatibility with oxidizing or halogenated media
• Precision-machined roller geometry ensures uniform tubing compression, minimizing pulsation and maximizing volumetric reproducibility (±1.5% typical CV under controlled conditions)
• Patented snap-fit mounting mechanism enables tool-free installation and removal—critical for rapid tubing changeover during cleaning-in-place (CIP) or method switching
• Optimized roller-tubing interface reduces mechanical fatigue, extending tubing service life by up to 3× compared to generic pump heads when used with Masterflex-certified L/S tubing
• Compact footprint (11.4 × 7.6 × 6.4 cm) facilitates integration into automated workstations, glove boxes, and enclosed reactor systems

Sample Compatibility & Compliance

The 07016-21 pump head is validated for use with Masterflex L/S-certified silicone, Viton®, Pharmed® BPT, and Tygon® E-3603 tubing—each selected per ASTM D2000 and USP Class VI specifications. When paired with appropriate tubing, it supports transfer of aqueous buffers, organic solvents (e.g., acetonitrile, IPA), mild acids/bases (pH 2–12), and shear-sensitive biological fluids (e.g., cell suspensions, enzyme solutions). The PC housing complies with UL 94 V-0 flammability rating; PPS housing meets FDA 21 CFR 177.2470 for repeated food-contact use. All configurations adhere to IEC 61000-6-2/6-3 EMC standards and are compatible with GLP/GMP environments requiring audit-trail-capable drive controllers (e.g., Masterflex I/P Series with Ethernet/IP or Modbus TCP).

Software & Data Management

While the pump head itself is electromechanically passive, its performance is fully leveraged through integration with Masterflex SmartControl™ software (v4.2+) and compatible drives featuring programmable ramp profiles, flow calibration wizards, and real-time RPM/flow logging. Data export supports CSV and Excel formats for traceability in regulated workflows. When used with FDA 21 CFR Part 11-compliant drive systems (e.g., I/P 77400-30 with optional audit trail module), full electronic record retention—including operator ID, timestamped parameter changes, and calibration history—is achievable without third-party middleware.

Applications

• Automated liquid handling in HPLC mobile phase delivery and fraction collection
• Continuous feed of nutrient media in microbial fermentation and mammalian cell culture bioreactors
• Controlled addition of catalysts or initiators in polymer synthesis reactors
• Calibration standard delivery in environmental water analysis (EPA Method 300.0, ISO 15586)
• Dispensing of adhesives, coatings, and photoresists in microfabrication cleanrooms
• Pharmaceutical formulation support: excipient metering in wet granulation and coating processes per USP & Ph. Eur. guidelines

FAQ

What tubing sizes are compatible with the 07016-21 pump head?

The 07016-21 is optimized for L/S 16 tubing (ID 0.8 mm), but also supports L/S 13, L/S 14, L/S 17, and L/S 18 when configured for A-type operation—refer to Masterflex Tubing Selection Guide (Doc #77400-UG) for dimensional tolerances and pressure derating curves.
Can this pump head be used with non-Masterflex tubing?

Use of uncertified tubing voids performance specifications and may cause premature failure due to inconsistent wall thickness, durometer, or rebound characteristics—Masterflex validates all published flow and pressure data exclusively with its L/S-series tubing.
Is the 07016-21 suitable for sterile applications?

Yes—when paired with gamma-irradiated, USP Class VI-certified silicone or Pharmed BPT tubing and installed in an ISO 5 laminar flow hood, the pump head supports aseptic transfer; however, sterilization of the pump head itself is not recommended—autoclaving or ethylene oxide exposure degrades PC/PPS polymers and CRS plating.
How does the PPS housing improve chemical resistance over PC?

PPS exhibits superior resistance to chlorinated solvents (e.g., chloroform, methylene chloride), strong oxidizers (e.g., 30% H₂O₂), and continuous exposure above 100°C—whereas PC begins hydrolytic degradation above 60°C in alkaline media.
What maintenance is required for long-term accuracy?

Annual inspection of roller concentricity and housing latch integrity is recommended; no lubrication is required—roller bearings are sealed for life, and tubing compression force is factory-calibrated and non-adjustable.