Tongtian TBP5002T Titanium-Body Medium-Pressure Dual-Piston Constant Flow Pump

Overview

The Tongtian TBP5002T is a dual-piston, medium-pressure constant flow pump engineered for precise, pulse-free liquid delivery in chemically aggressive environments. It operates on the principle of reciprocating positive displacement—where two synchronized titanium pistons alternately draw and discharge fluid through a dual-check-valve system—to achieve high volumetric accuracy and minimal pressure ripple (< ±0.5% of set pressure). Unlike single-piston or peristaltic alternatives, this architecture ensures continuous flow without interruption across the full operational range, making it suitable for extended-duration applications such as continuous infusion in bioprocessing, reagent dosing in corrosion-resistant synthesis, or long-term eluent delivery in preparative chromatography. Its design targets laboratories requiring trace-level reproducibility under sustained exposure to strong acids (e.g., concentrated HNO₃, H₂SO₄, H₃PO₄), alkaline solutions (e.g., NH₄OH, NaOH), and redox-active electrolytes (e.g., Cu/Ni electrowinning baths), where conventional stainless steel or PEEK-based pumps risk degradation or metal leaching.

Key Features

• Pure titanium (ASTM B348 Grade 2) fluid path—including pump head, inlet/outlet manifolds, and piston seals—provides exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking in halide-rich and oxidizing media.
• Hard ceramic components: sapphire ball check valves and zirconia ceramic piston rods ensure dimensional stability, low wear, and zero organic extractables—critical for bioactive or ultra-pure applications.
• Dual-piston synchronization controlled by a 32-bit microprocessor minimizes flow pulsation to < 0.3% CV (coefficient of variation) at 10 mL/min, verified per ISO 5725-2 repeatability protocols.
• Real-time digital monitoring of actual pressure, set pressure, and flow rate via integrated high-stability piezoresistive transducers with NIST-traceable calibration documentation available upon request.
• RS232 and USB 2.0 interfaces support bidirectional communication with third-party control systems (e.g., LabVIEW, MATLAB, or custom SCADA) and enable remote parameter adjustment, data logging, and firmware updates.
• Onboard timer function supports programmable start/stop sequences up to 99 hours, with non-volatile memory retaining last-used settings after power loss.

Sample Compatibility & Compliance

The TBP5002T is validated for use with aqueous and organic-aqueous solutions exhibiting pH 0–14, including but not limited to nitric acid (≤70%), sulfuric acid (≤98%), hydrochloric acid (≤37%), phosphoric acid (≥85%), sodium hydroxide (≤50%), ammonium hydroxide (≤30%), and mixed electrolyte systems used in hydrometallurgical extraction. Its all-titanium wetted path meets USP Class VI biological safety requirements and exhibits no detectable leachables per ICH Q5C guidelines when tested per ASTM F2129 electrochemical impedance spectroscopy. The pump’s mechanical architecture conforms to ISO 13849-1 PL d functional safety principles for laboratory equipment. While not certified to FDA 21 CFR Part 11 out-of-the-box, its software logging module supports configurable user authentication, electronic signatures, and immutable audit trails—enabling compliance readiness for GMP/GLP-regulated environments upon site-specific validation.

Software & Data Management

The embedded control firmware includes a local GUI accessible via front-panel keypad and LCD display, supporting real-time pressure/flow curve plotting, parameter history recall (up to 10,000 records), and CSV export via USB flash drive. Optional PC-based software (Tongtian PumpControl v3.2) provides advanced features: multi-pump coordination, gradient profile programming, alarm threshold configuration (e.g., overpressure lockout at 2.1 MPa), and automated report generation compliant with ALCOA+ data integrity principles. All logged parameters—including timestamp, operator ID, pressure deviation, and flow error—are stored with SHA-256 hashing to prevent tampering. Raw data files are saved in open-format .csv and .xml schemas compatible with LIMS integration.

Applications

• Continuous feeding of corrosive reagents in pilot-scale electrochemical reactors for precious metal recovery (e.g., gold leaching with aqua regia analogs).
• Stable eluent delivery in preparative ion chromatography of transition metal complexes where stainless steel contamination must be avoided.
• Long-duration infusion of enzyme-stabilized buffers in biocatalytic reaction monitoring systems.
• Calibration fluid delivery in online corrosion monitoring loops for refinery desalting units.
• Controlled dosing of aggressive catalyst precursors (e.g., TiCl₄ in inert atmosphere gloveboxes) without valve clogging or seal swelling.
• Research-grade solvent delivery in high-temperature/pressure hydrothermal synthesis setups operating up to 180 °C and 2 MPa.

FAQ

What is the maximum allowable temperature for the titanium fluid path?
The pump is rated for continuous operation at ambient temperatures up to 45 °C; short-term exposure to fluids at ≤80 °C is permissible if ambient conditions remain within specification and thermal expansion of titanium seals is accounted for in system design.
Can the TBP5002T be integrated into an automated chromatography system?
Yes—via RS232 or USB, it supports standard SCPI command sets and can be synchronized with UV detectors, fraction collectors, and system controllers using TTL trigger signals.
Is the pump compatible with acetonitrile or THF?
While titanium itself is inert toward most organics, prolonged exposure to halogenated solvents (e.g., chloroform, DCM) may accelerate gasket aging; we recommend fluorosilicone or Kalrez® seals for extended organic-phase use.
Does the device include pressure relief protection?
An internal mechanical pressure relief valve is factory-set at 2.2 MPa and cannot be adjusted by the user; external high-pressure rupture disks are advised for systems exceeding 2.0 MPa working pressure.
How often does the pump require recalibration?
Annual verification against gravimetric flow standards is recommended; certificate of conformance with uncertainty budget is provided with each unit.