Masterflex BT Fixed-Speed Peristaltic Pump
| Origin | USA |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Imported |
| Model | 77111-07 |
| Pricing | Upon Request |
Overview
The Masterflex BT Fixed-Speed Peristaltic Pump (Model 77111-07) is an industrial-grade, CE-compliant peristaltic pumping system engineered for reliable, contamination-free fluid transfer in regulated laboratory, bioprocessing, and quality control environments. Based on the positive displacement principle of peristalsis—where rollers compress flexible tubing against a curved housing to generate flow—the BT series delivers precise, pulse-dampened volumetric delivery without internal valves, seals, or wetted pump components other than the tubing itself. This design ensures complete fluid isolation, eliminates cross-contamination risk, and supports rapid tube changeover for multi-product or sterile applications. Designed and assembled in the United States, the unit features a robust stainless-steel chassis, IP55-rated ingress protection against dust and low-pressure water jets, and full compliance with ISO 9001:2000 quality management standards.
Key Features
- Fixed-speed operation at 271 rpm—optimized for repeatable flow performance across defined tubing configurations
- Integrated safety interlock: power automatically cuts off when the pump head cover is opened, meeting IEC 61000-6-2 and EN 60335-1 functional safety requirements
- Bidirectional rotation capability for forward/reverse priming, backflushing, or process reversal
- Stainless-steel housing and hardware for corrosion resistance and long-term mechanical stability
- Easy-clean architecture: external surfaces withstand direct water rinsing post-operation; no disassembly required for routine decontamination
- Motor-driven roller assembly with precision-machined cam geometry ensures uniform compression force and minimizes tubing fatigue
Sample Compatibility & Compliance
The BT pump accommodates a wide range of certified elastomeric tubing materials—including Tygon® LFL (included), Viton®, C-Flex®, Pharmed®, Pharmapure®, Norprene®, and Chem-Durance®—enabling compatibility with aggressive solvents, high-purity pharmaceuticals, food-grade formulations, and caustic or acidic reagents. Tubing selection directly determines maximum viscosity handling (up to 10,000 cP with appropriate wall thickness and durometer), chemical resistance, and FDA/USP Class VI compliance where applicable. The system meets CE marking requirements for electromagnetic compatibility (EMC Directive 2014/30/EU) and low-voltage safety (LVD Directive 2014/35/EU). It is suitable for use in GLP and GMP environments when paired with audit-trail-capable controllers and validated tubing installation protocols.
Software & Data Management
As a fixed-speed analog pump, the BT 77111-07 operates without embedded firmware or digital interfaces. Flow rate is determined solely by rotational speed and tubing inner diameter/wall thickness—enabling traceable, calibration-free operation when used with certified tubing dimensions. For integration into automated workflows, optional analog input/output modules (e.g., 0–10 VDC start/stop control, pulse output for flow monitoring) are available through Masterflex’s accessory ecosystem. When deployed in regulated settings, users may document operational parameters—including tubing lot number, installed length, and calibration verification records—in accordance with 21 CFR Part 11 requirements using external electronic lab notebooks (ELNs) or LIMS platforms.
Applications
- Continuous media feeding in cell culture bioreactors and fermentation systems
- Accurate reagent dosing in automated analytical instrumentation (e.g., ICP-OES sample introduction, HPLC mobile phase delivery)
- Transfer of shear-sensitive biological fluids (e.g., whole blood, protein solutions, viral vectors)
- Pharmaceutical manufacturing support: buffer preparation, CIP/SIP line flushing, and fill-finish auxiliary pumping
- Environmental testing labs: sampling of wastewater, slurry, or particulate-laden effluents
- Food & beverage QC: ingredient metering, flavor concentrate blending, and clean-in-place (CIP) circulation
FAQ
What is the maximum recommended viscosity for this pump?
The BT pump reliably handles fluids up to 10,000 cP when paired with appropriately sized tubing (e.g., Tygon LFL #91) and maintained within ambient temperature ranges (15–30°C). Viscosity limits scale inversely with tubing ID and roller compression ratio.
Is the pump suitable for sterile applications?
Yes—provided single-use, gamma-irradiated, USP Class VI-certified tubing (e.g., Platinum-Cured Silicone or Pharmapure) is installed and replaced between batches. No internal wetted surfaces exist beyond the tubing.
Can flow rate be adjusted without changing tubing?
No—this is a fixed-speed model operating exclusively at 271 rpm. Variable-speed control requires upgrading to the Masterflex I/P or Eco series with integrated speed regulation.
What electrical specifications does the unit require?
Input: 220 VAC, 50 Hz, 4 A. Unit includes IEC 60320 C14 inlet and conforms to EN 61000-3-2 harmonic current emission limits.
Does the pump include tubing certification documentation?
Tygon LFL #91 tubing supplied with Model 77111-07 carries manufacturer certificates of conformance (CoC) for extractables, biocompatibility, and dimensional tolerances. Lot-specific CoAs are available upon request.
