Masterflex L/S Easy-Load 3 Pump Head Model 77800-60
| Brand | Masterflex |
|---|---|
| Origin | USA |
| Model | 77800-60 |
| Pump Head Type | L/S Series Easy-Load 3 |
| Housing Material | Polypropylene (PP) |
| Rotor Options | Cold Rolled Steel (CRS) or Stainless Steel (SS) |
| Flow Direction | Inlet and Outlet on Same Side |
| Mounting | Tool-Free Rotary-Lock to L/S Drive Panels |
| Compatibility | All L/S Precision Tubing (Sizes 13, 14, 16, 25, 17, 18) and High-Performance Tubing (Sizes 15, 24, 35, 36) |
| Max Stacked Heads per Drive | As per L/S Drive Specifications |
| Flow Range (Precision Tubing) | 0.06–2300 mL/min |
| Flow Range (High-Performance Tubing) | 1.7–2900 mL/min |
Overview
The Masterflex® L/S Easy-Load 3 Pump Head Model 77800-60 is a precision-engineered peristaltic pump head designed for integration with Masterflex L/S series drive units. It operates on the fundamental principle of positive displacement via roller compression of elastomeric tubing—eliminating fluid contact with mechanical components and ensuring contamination-free transfer of sensitive, aggressive, or sterile liquids. This design makes it suitable for applications demanding high chemical resistance, repeatable volumetric accuracy, and rapid maintenance in regulated laboratory, pilot-scale, and industrial process environments. The 77800-60 variant is configured for universal compatibility with both standard L/S precision tubing and high-performance L/S tubing families, supporting flexible system scalability through tool-free stacking.
Key Features
- Tool-free rotary-lock mounting: Enables secure attachment and alignment to L/S drive panels in under three seconds—no screws, brackets, or alignment tools required.
- Integrated mounting panel compatibility: Designed exclusively for use with Masterflex L/S drive systems; includes adjustable brake lever that locks the pump head in position during bidirectional rotation.
- Dual rotor material options: Cold-rolled steel (CRS) for cost-sensitive general-purpose use; stainless steel (SS) for enhanced corrosion resistance and longevity in aggressive chemical environments.
- Same-side inlet/outlet configuration: Reduces footprint and simplifies manifold integration in space-constrained enclosures or OEM equipment.
- Four-axis orientation capability: Pump head can be mounted in any of four rotational positions (0°, 90°, 180°, 270°) relative to the drive shaft—enabling optimal hose routing and system layout flexibility.
- Universal tubing compatibility: Supports all six sizes of L/S precision tubing (13, 14, 16, 25, 17, 18) and all four sizes of L/S high-performance tubing (15, 24, 35, 36), eliminating need for multiple pump head SKUs across tubing selections.
Sample Compatibility & Compliance
The 77800-60 pump head itself does not contact process fluids; compatibility is governed by selected tubing material (e.g., Viton®, Norprene®, PharMed® BPT, Tygon®). When paired with USP Class VI–certified or FDA-compliant tubing, the assembly meets requirements for pharmaceutical processing, bioprocessing, and food-grade transfer. The polypropylene housing resists common solvents, acids, and bases—validated per ASTM D543 and ISO 10993-5 cytotoxicity guidelines. For GMP/GLP environments, full traceability is supported when used with drives equipped with 21 CFR Part 11–compliant audit trail functionality (e.g., Masterflex L/S Digital or IntelliSpeed drives).
Software & Data Management
As a mechanical pump head, the 77800-60 contains no embedded electronics or firmware. Its performance is fully governed by the connected L/S drive unit. When integrated with programmable Masterflex drives (e.g., L/S Digital, IntelliSpeed, or I/P Series), users gain access to calibrated speed control, volumetric dispensing modes, real-time flow monitoring (via optional flow sensors), and data logging via RS-232/USB/Ethernet interfaces. All drive-level software supports export of CSV-formatted operation logs—including timestamped speed, direction, runtime, and alarm events—for inclusion in electronic batch records (EBRs) or LIMS integration.
Applications
- Pharmaceutical manufacturing: Accurate dosing of APIs, buffers, and cleaning solutions in CIP/SIP systems and filling lines.
- Biotechnology: Sterile media transfer, harvest clarification, and perfusion culture feed control using single-use tubing sets.
- Analytical chemistry: Automated reagent delivery in ICP-MS, HPLC, and ion chromatography sample introduction systems.
- Environmental testing: Continuous sampling and preservation of water/wastewater specimens under field-deployable battery-powered drives.
- OEM instrumentation: Compact, serviceable fluid path modules for diagnostic analyzers, fermentation monitors, and microfluidic controllers.
FAQ
What tubing sizes are compatible with the 77800-60 pump head?
It supports all six L/S precision tubing sizes (13, 14, 16, 25, 17, 18) and all four L/S high-performance tubing sizes (15, 24, 35, 36).
Can this pump head be stacked with other L/S Easy-Load 3 heads on the same drive?
Yes—multiple 77800-60 units can be stacked vertically on compatible L/S drives; maximum stack height depends on the specific drive model’s mechanical and thermal limits (see individual drive datasheets).
Is the pump head rated for continuous duty at elevated temperatures?
The PP housing is rated for continuous operation up to 60 °C ambient; actual temperature tolerance depends on tubing selection and drive ventilation—consult tubing manufacturer specifications for fluid-side thermal limits.
Does the 77800-60 include tubing or a drive unit?
No—it is sold as a standalone pump head only. Tubing and drive must be ordered separately based on application requirements.
How does rotor material affect chemical compatibility?
CRS rotors offer economical performance with mild aqueous solutions; SS rotors provide superior resistance to oxidizing agents, halogens, and organic solvents—critical for long-term reliability in corrosive duty cycles.
