Masterflex L/S Easy-Load Peristaltic Pump Head
| Brand | Masterflex |
|---|---|
| Origin | USA |
| Model | 07516-00 |
| Pump Type | Peristaltic Pump |
| Flow Rate Range | Dependent on Drive and Tubing Size |
| Speed Range | Dependent on Drive |
| Housing Material | White PPS (Polyphenylsulfone) |
| Rotor Material | Stainless Steel (SS) |
| ATEX Certification | II 3 G c IIC T6, Zone 2 |
| Max System Pressure | 40 psi (2.7 bar) |
| Includes | Single-channel mounting hardware and one 15" (38 cm) silicone tubing |
Overview
The Masterflex® L/S® Easy-Load® Peristaltic Pump Head is an engineered solution for precise, repeatable, and maintenance-efficient fluid handling in analytical, bioprocessing, and industrial laboratory environments. Operating on the fundamental principle of peristalsis—where rollers compress flexible tubing against a rigid housing to generate positive displacement—the L/S Easy-Load design eliminates the need to disassemble or reposition the pump head during tubing replacement. This mechanical simplicity ensures high reproducibility across extended operational cycles while minimizing operator intervention and potential misalignment errors. Constructed with chemically resistant polyphenylsulfone (PPS) housing and stainless steel (SS) rotor components, the pump head delivers long-term structural integrity and compatibility with aggressive solvents, acids, bases, and organic media commonly encountered in QC labs, pilot-scale fermentation, and continuous sampling systems.
Key Features
- Tool-free, single-motion tubing loading mechanism—no removal of pump head from drive required
- Chemically inert white PPS housing rated for continuous operation up to 120 °C and compatible with ISO Class 5 cleanroom environments
- Corrosion-resistant stainless steel rotor with precision-machined roller geometry ensuring uniform compression and reduced tubing fatigue
- Modular stacking architecture supporting up to four independent L/S pump heads on a single compatible drive unit (e.g., Masterflex I/P or E/One series)
- ATEX-certified variant (II 3 G c IIC T6, Zone 2) suitable for use in potentially explosive atmospheres containing gas groups IIC (e.g., hydrogen, acetylene)
- Standard configuration includes stainless steel mounting hardware and one 38 cm (15″) length of platinum-cured silicone tubing (L/S-compatible, USP Class VI compliant)
Sample Compatibility & Compliance
The L/S Easy-Load pump head accommodates a broad range of certified peristaltic tubing materials—including silicone, Viton®, Tygon® LFL, PharMed® BPT, and C-Flex®—enabling seamless adaptation to diverse fluid chemistries and regulatory requirements. Its design conforms to ISO 8536-4 (infusion equipment), ASTM D297 (rubber properties), and FDA 21 CFR Part 11–ready data acquisition when integrated with compliant drive controllers. The ATEX-certified version meets EN 60079-0 and EN 60079-15 standards for non-sparking, flameproof instrumentation in hazardous locations. All variants support GLP/GMP traceability through standardized torque specifications and documented installation procedures.
Software & Data Management
While the L/S Easy-Load pump head itself is a passive mechanical component, its performance is fully leveraged when paired with Masterflex programmable drives featuring RS-232/RS-485 or USB communication protocols. These drives enable remote speed control, real-time flow calibration via tubing-specific lookup tables, and audit-trail-capable event logging aligned with FDA 21 CFR Part 11 requirements. Optional software packages (e.g., Masterflex FlowManager™) support multi-channel synchronization, dose-volume triggering, and CSV export of time-stamped flow profiles for integration into LIMS or ELN platforms.
Applications
- Continuous feed of reagents in automated titration and ICP-MS sample introduction systems
- Media delivery in mammalian cell culture bioreactors and perfusion-based upstream processing
- Waste aspiration and neutralization loop control in environmental monitoring stations
- Accurate metering of viscous polymer solutions in rheology sample preparation workflows
- Low-shear transfer of shear-sensitive biological suspensions (e.g., platelets, microcarriers)
- Calibration fluid distribution in metrology labs adhering to ISO/IEC 17025 accreditation criteria
FAQ
What tubing sizes are compatible with the L/S 13 model (part number 07516-00)?
The L/S 13 pump head is designed for tubing with an inner diameter of 0.06″ (1.5 mm), such as Masterflex L/S 13 silicone or PharMed BPT tubing.
Can multiple L/S Easy-Load pump heads operate independently on one drive?
Yes—up to four L/S pump heads may be mounted in parallel on compatible Masterflex I/P or E/One drives, each controlled via discrete channel outputs.
Is the ATEX-certified version suitable for Zone 1 environments?
No—the 07518-60 and 07518-62 variants are rated exclusively for Zone 2 (low probability of explosive atmosphere); Zone 1 requires higher protection level (e.g., Ex d or Ex ib) not provided by this design.
How does rotor material affect chemical compatibility?
Stainless steel (SS) rotors offer superior resistance to oxidation and halogenated solvents compared to cold-rolled steel (CRS), particularly under elevated temperature or pH extremes.
What is the maximum recommended operating pressure for continuous duty?
40 psi (2.7 bar) at 25 °C using standard silicone tubing; pressure rating decreases with increasing temperature or use of softer tubing compounds.
