Tongtian TBP1010 Medium-Pressure Constant-Flow Dual-Piston Pump

Overview

The Tongtian TBP1010 Medium-Pressure Constant-Flow Dual-Piston Pump is an engineered solution for precise, stable, and chemically resistant liquid delivery in analytical, preparative, and process-critical laboratory environments. Designed around a dual-piston positive displacement architecture, the pump operates on reciprocating volumetric displacement principles—ensuring flow rate is directly proportional to piston stroke volume and cycle frequency, independent of backpressure within its operational envelope (0–10.0 MPa). This mechanical design inherently minimizes flow pulsation (< 0.08 MPa pressure ripple) while delivering high reproducibility (RSD ≤ 1%) across its full flow range (0.1–10.0 mL/min). Its microprocessor-based control system continuously monitors real-time pressure and flow parameters, enabling closed-loop stabilization and active compensation for minor viscosity or compressibility variations. The TBP1010 is not a generic peristaltic or diaphragm pump; it is a precision-engineered constant-flow instrument intended for applications demanding metrological traceability, long-term stability, and compatibility with aggressive solvents—making it suitable for use in HPLC auxiliary systems, reaction injection, catalyst screening, continuous extraction, and controlled reagent dosing.

Key Features

• Dual-piston architecture with sapphire pistons and sapphire check valves—providing exceptional wear resistance, chemical inertness, and extended service life under continuous operation.
• Wetted path constructed from chemically robust materials: 316L stainless steel housing, zirconia ceramic seals, and sapphire fluidic components—validated for compatibility with organic solvents (e.g., THF, DCM, acetonitrile), dilute acids/bases, and halogenated media.
• Integrated over-pressure protection circuitry and automatic flow calibration routine—ensuring operational safety and long-term accuracy without manual recalibration intervals.
• Large backlit LCD display with intuitive menu navigation—showing real-time pressure, setpoint values, elapsed runtime, and system status indicators.
• RS232 serial interface as standard—enabling bidirectional communication with host PCs for remote parameter setting, data logging, and synchronization with external triggers or timing controllers.
• Dedicated air-bleed valve and optimized inlet geometry—facilitating rapid degassing and eliminating entrained bubbles that compromise flow stability and analytical reproducibility.
• Configurable memory storage for up to 10 user-defined protocols—including flow rate, pressure limit, run duration, and start/stop delay settings.

Sample Compatibility & Compliance

The TBP1010 is designed for use with low-to-medium viscosity Newtonian and near-Newtonian liquids (typical dynamic viscosity range: 0.3–20 mPa·s). It is routinely deployed in workflows requiring strict adherence to GLP and GMP documentation practices—particularly where audit trails for flow delivery are essential (e.g., method validation per USP , ISO/IEC 17025, or FDA 21 CFR Part 11-compliant environments when paired with validated software). While the pump itself does not carry CE or UL certification out-of-the-box, its electrical design complies with IEC 61010-1 safety requirements for laboratory equipment. All wetted materials meet USP Class VI biocompatibility criteria, supporting applications involving sensitive biomolecules or pharmaceutical intermediates. For regulatory submissions, material certificates (EN 10204 3.1) for 316L SS and RoHS/REACH declarations for sapphire and zirconia are available upon request.

Software & Data Management

The TBP1010 supports ASCII-based command protocol over RS232, compatible with custom LabVIEW, Python (PySerial), or MATLAB scripts for automated sequence execution. Optional Tongtian PumpControl™ desktop software provides graphical real-time pressure curve plotting, exportable CSV logs (timestamped pressure, flow, temperature if sensor-equipped), and password-protected parameter locking for SOP enforcement. All logged data includes embedded metadata: firmware version, serial number, operator ID (if configured), and UTC timestamps—meeting minimum ALCOA+ (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available) data integrity expectations. Remote firmware updates are supported via serial bootloader mode, ensuring lifecycle maintainability without hardware replacement.

Applications

• Preparative chromatography feed systems—delivering consistent mobile phase or sample loading streams at fixed flow rates under elevated backpressure.
• Catalytic reaction monitoring—precise co-injection of reagents into microreactors or flow cells for kinetic studies.
• Continuous solvent extraction—maintaining steady-state flow across solid-phase cartridges or membrane modules.
• Calibration standard delivery—metering certified reference solutions into ICP-MS, AAS, or UV-Vis flow cells with sub-percent volumetric repeatability.
• Electrochemical cell conditioning—controlled electrolyte circulation in corrosion testing or battery R&D setups.
• Environmental leaching studies—automated eluent delivery in column leaching procedures compliant with EPA Method 1311 or ASTM D5088.

FAQ

What is the maximum allowable inlet pressure for the TBP1010?
The pump is designed for atmospheric or slightly pressurized inlet conditions (≤ 0.2 MPa gauge). Positive inlet pressure beyond this threshold may compromise check valve sealing and void calibration validity.
Can the TBP1010 be used with viscous non-Newtonian fluids such as polymer solutions?
It is not recommended. The pump’s flow accuracy specification assumes Newtonian behavior. Shear-thinning or thixotropic fluids introduce unquantified volumetric displacement errors due to variable compressibility and valve response lag.
Is the RS232 interface opto-isolated?
Yes—the communication port incorporates galvanic isolation rated to 1 kV DC, protecting connected instrumentation from ground loop interference or transient surges.
Does the pump support analog input for external flow rate modulation?
Not natively. Analog control (e.g., 0–5 V or 4–20 mA) requires optional OEM firmware revision and external signal conditioning module—available under custom order terms.
How often should the sapphire check valves be inspected?
Under typical lab use (8 h/day, aqueous/organic solvents), visual inspection every 6 months and functional verification (flow linearity test) every 12 months is advised. Replacement intervals vary significantly with abrasive particulate content and pH extremes.