Tongtian TBP-1010T Dual-Piston Constant Flow Pump

Overview

The Tongtian TBP-1010T is a dual-piston constant flow pump engineered for high-precision, low-pulsation liquid delivery in mid-pressure chromatographic and process-critical laboratory applications. Based on positive displacement piston technology with synchronized dual-head actuation, it delivers stable volumetric flow rates across its full operating range (0.1–10.0 mL/min) while maintaining pressure stability up to 10.0 MPa. Its core architecture leverages the hydrodynamic advantages of reciprocating piston motion combined with active pulse dampening—achieved through mechanical synchronization, optimized valve timing, and compliant fluid path design—to minimize pressure ripple (≤ 0.08 MPa). This enables consistent eluent delivery for HPLC, preparative chromatography, reaction monitoring, and continuous extraction systems where flow integrity directly impacts separation resolution, retention time reproducibility, and quantitative accuracy.

Key Features

• Dual-piston configuration with phase-shifted actuation to suppress inherent pressure pulsation and extend service life of sapphire check valves and pistons
• Chemically inert wetted path constructed entirely from high-purity titanium, sapphire spheres, and zirconia ceramic—validated for compatibility with aggressive organic solvents (e.g., THF, chloroform, acetonitrile), strong acids (up to 6 M HCl), and alkaline media (up to 1 M NaOH)
• Integrated degassing module with capillary venting geometry and adjustable backpressure regulation to eliminate microbubble entrainment prior to fluid egress
• RS232 serial interface compliant with standard SCPI command syntax, enabling remote parameter setting, real-time status polling, and event-triggered logging via host PC or industrial controller
• Onboard microprocessor with non-volatile memory retains user-defined flow/pressure setpoints, calibration offsets, and operational history across power cycles
• Programmable overpressure cutoff (adjustable threshold between 8.0–10.0 MPa) coupled with automatic flow recalibration routine activated after maintenance or solvent change
• Backlit 128×64 pixel LCD display with intuitive menu navigation, real-time graphical representation of flow deviation, and diagnostic code reporting

Sample Compatibility & Compliance

The TBP-1010T supports continuous, uninterrupted delivery of homogeneous liquids—including viscous solutions (up to 50 cP at 25 °C), suspensions with particle sizes < 5 µm, and thermally sensitive reagents (operating temperature range: 5–40 °C). It complies with IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity requirements) for laboratory environments. While not certified for intrinsically safe operation, its sealed electronics housing meets IP20 ingress protection standards. For regulated workflows, the pump’s RS232 protocol supports audit-trail-capable control integration when paired with validated host software adhering to FDA 21 CFR Part 11 requirements for electronic records and signatures.

Software & Data Management

The pump operates natively via front-panel controls but is fully controllable using Tongtian’s optional PumpControl Suite—a Windows-based application supporting multi-pump synchronization, gradient method scripting, and time-stamped CSV export of flow/pressure logs. All communication events (parameter changes, fault alerts, calibration actions) are timestamped and stored in internal memory (≥10,000 entries). When interfaced with programmable logic controllers (PLCs), the device accepts Modbus RTU commands over RS232 (custom firmware option), facilitating integration into automated batch systems compliant with ISA-88 and ISA-95 frameworks. Data integrity is preserved through cyclic redundancy check (CRC-16) validation on all command transmissions.

Applications

• HPLC and UHPLC mobile phase delivery where pulse-free flow ensures baseline stability and detector signal fidelity
• Preparative chromatography systems requiring precise fraction collection based on volumetric triggers
• Continuous-flow synthesis reactors demanding stoichiometric reagent dosing under elevated backpressure
• Environmental sample extraction (e.g., EPA Method 3550C) with acidified solvents and chelating agents
• Pharmaceutical dissolution testing per USP , where flow consistency directly affects drug release profile accuracy
• Calibration of flow meters and pressure transducers in metrology laboratories

FAQ

What materials are in contact with the fluid path?
Pure titanium body, sapphire inlet/outlet check valves, zirconia ceramic pump heads, and PTFE-free sealing elements ensure broad chemical resistance without fluoropolymer leaching.
Can the pump operate unattended for extended periods?
Yes—its thermal management system maintains ambient coil temperature below 55 °C during continuous 24/7 operation at 7.5 mL/min and 8.0 MPa, supported by redundant overtemperature detection.
Is flow calibration traceable to national standards?
Factory calibration uses gravimetric measurement against NIST-traceable mass standards; users may perform field verification using certified flow meters meeting ISO 4064 Class B specifications.
Does the pump support analog input for external flow modulation?
Not by default—but a 0–10 V analog input option is available upon request for closed-loop integration with external sensors (e.g., inline UV absorbance feedback).
How is maintenance access designed for routine servicing?
Front-accessible piston seals and check valve assemblies allow full wetted-part replacement in <15 minutes without specialized tools or alignment fixtures.