BT-100D Digital Display Constant-Flow Peristaltic Pump
| Origin | Shanghai, China |
|---|---|
| Manufacturer Type | Authorized Distributor |
| Origin Category | Domestic (PRC) |
| Model | BT-100D |
| Price | USD 465 (FOB Shanghai) |
| Dimensions | 160 × 270 × 180 mm |
| Flow Channels | Single-channel |
| Flow Rate Range | 1–6800 mL/h |
| Maximum Back Pressure | ≥3 kg/cm² (≈294 kPa) |
| Timing Range | 1 min – 19 h 59 min |
| Speed Display | Digital LED |
| Speed Control | Stepless, digitally calibrated |
| Compliance | CE-marked per EN 61000-6-2/6-4 |
Overview
The BT-100D Digital Display Constant-Flow Peristaltic Pump is a precision-engineered single-channel peristaltic pump designed for reliable, pulse-free fluid delivery in laboratory and pilot-scale applications. Operating on the principle of occlusive peristalsis—where rollers compress flexible tubing to generate forward displacement—the BT-100D delivers consistent volumetric flow without contact between the pump mechanism and the fluid, ensuring contamination-free operation and eliminating the need for valves or seals. Its digitally calibrated speed control and integrated timing circuit enable repeatable, time-synchronized dosing across extended periods (up to 19 hours 59 minutes), making it suitable for unattended operation in controlled environments such as bioreactor feed systems, column chromatography elution, reagent addition in automated analyzers, and continuous sampling protocols. The pump’s mechanical architecture prioritizes long-term stability: hardened stainless-steel rollers, low-inertia rotor assembly, and optimized tube compression geometry contribute to minimal flow drift (<±2% over 8 h at mid-range flow) and extended tubing service life.
Key Features
- Single-channel design with digital LED display for real-time monitoring of rotational speed (RPM) and elapsed/timer-set duration
- Wide flow range: 1–6800 mL/h, adjustable via stepless digital speed control (0–155 RPM nominal, calibrated against tubing ID and wall thickness)
- Maximum back pressure capacity ≥294 kPa (3 kg/cm²), compatible with standard silicone or Tygon® L/S series tubing (ID 0.5–6.4 mm)
- Programmable timer with precision quartz-based timing circuitry; resolution: ±1 second over full range (1 min – 19 h 59 min)
- Front-panel membrane keypad with tactile feedback; IP20-rated enclosure for dry laboratory environments
- Low-noise brushless DC motor (rated life >10,000 h at 25°C ambient); thermal protection circuitry prevents coil overheating during prolonged high-load operation
- Modular housing design allows rapid tubing replacement without tools; rotor cover features transparent polycarbonate window for visual flow verification
Sample Compatibility & Compliance
The BT-100D is chemically agnostic with respect to fluid compatibility—performance depends solely on tubing material selection. It supports all standard peristaltic tubing formulations, including platinum-cured silicone (for USP Class VI biocompatibility), PharMed® BPT (for solvent resistance), and Norprene® (for ozone and UV stability). No fluid-path components are exposed to metal or elastomer surfaces outside the tubing itself, satisfying ISO 13485 requirements for medical device manufacturing support equipment. The unit complies with electromagnetic compatibility standards EN 61000-6-2 (immunity) and EN 61000-6-4 (emission), and meets RoHS Directive 2015/863/EU for hazardous substance restrictions. While not certified for use in explosion-hazardous zones (ATEX/IECEx), it is routinely deployed in GMP-aligned QC laboratories under documented SOPs for buffer delivery in HPLC system priming and cell culture media perfusion.
Software & Data Management
The BT-100D operates as a standalone instrument with no embedded firmware or data logging capability—consistent with its designation as an “entry-grade constant-flow actuator.” All operational parameters are set locally via front-panel controls; no USB, RS-232, or analog I/O interfaces are provided. This design minimizes validation burden in regulated environments: absence of software eliminates requirements for FDA 21 CFR Part 11 compliance, audit trail generation, or electronic record integrity controls. For integration into automated workflows, external PLC or DAQ systems may interface via optional dry-contact start/stop triggers (available as factory-installed accessory kit). Calibration certificates traceable to NIM (National Institute of Metrology, China) are supplied with each unit, documenting flow accuracy verification at three points (10%, 50%, and 90% of max flow) using gravimetric measurement per ISO 8599.
Applications
- Continuous feeding of nutrient media or inducer solutions in microbial fermentation and mammalian cell culture bioreactors
- Gradient elution control in preparative and analytical liquid chromatography systems (HPLC, FPLC, SEC)
- Automated sampling loops in online water quality analyzers (e.g., COD, TOC, nitrate sensors)
- Dosing of coagulants or pH adjusters in wastewater treatment pilot studies
- Reagent delivery in ELISA wash stations and automated immunoassay platforms
- Calibration fluid circulation in flow meter verification rigs per ISO/IEC 17025-accredited labs
FAQ
Is the BT-100D suitable for sterile or aseptic applications?
Yes—provided appropriate pharmaceutical-grade tubing (e.g., C-Flex® or Santoprene® certified to USP ) is installed and replaced per defined batch intervals. The pump head itself requires only alcohol wipe disinfection between uses.
Can flow rate be validated independently of the display?
Yes. Gravimetric calibration using an analytical balance (±0.1 mg resolution) and timed collection is recommended quarterly or after tubing replacement, following ASTM D3418 practice for peristaltic pump verification.
What tubing sizes are supported?
Standard configurations accommodate tubing inner diameters from 0.5 mm to 6.4 mm. Optimal performance is achieved with wall thicknesses between 0.8 mm and 1.6 mm; oversized tubing may reduce pressure tolerance and increase pulsation amplitude.
Does the pump include overload or dry-run protection?
No. Continuous operation without fluid will accelerate tubing fatigue. Users must implement external level sensors or flow switches if dry-run conditions are possible in their process.
Is technical support available in English for international customers?
Yes—application engineering support and documentation (including dimensional drawings, tubing selection guide, and calibration protocol templates) are provided in English upon request. Firmware updates are not applicable, as the unit contains no programmable logic.
