Tongzhou Weipu T1 Circulating Chiller for Distillation Systems
| Brand | Tongzhou Weipu |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | Direct Manufacturer |
| Product Category | Domestic |
| Model | T1 Circulating Chiller for Distillation Systems |
| Instrument Type | Integrated Unit |
| Cooling Method | Water-Cooled |
| Temperature Control Range | −20 °C to 95 °C |
| Refrigeration Capacity | 300 W to 1800 W |
| Temperature Stability | ±0.1 °C |
| Operating Principle | Phase-Change Refrigeration |
Overview
The Tongzhou Weipu T1 Circulating Chiller is an integrated, benchtop-compatible refrigeration system engineered specifically to support low-to-medium thermal load laboratory instruments requiring precise, stable coolant delivery. Designed with phase-change refrigeration technology, the T1 delivers consistent temperature control across a wide operational range (−20 °C to 95 °C), enabling reliable thermal management for distillation systems, rotary evaporators, Kjeldahl digestors, calorimeters, and other analytical platforms where condenser cooling, reaction temperature stabilization, or auxiliary heat rejection is critical. Its compact footprint and open-bath reservoir configuration allow dual functionality—as both a circulating chiller and a low-temperature constant-temperature bath—supporting applications from organic synthesis to biochemical incubation. The unit employs environmentally compliant refrigerant R-134a (or equivalent GWP-compliant alternative per regional regulation), aligning with international environmental directives including EU F-Gas Regulation and EPA SNAP requirements.
Key Features
- Integrated design with fully enclosed refrigeration circuit and corrosion-resistant stainless-steel reservoir
- High-efficiency scroll or rotary compressor paired with optimized condenser and expansion valve for stable phase-change operation
- Digital PID temperature controller with real-time display, programmable setpoint ramping, and over-temperature/low-flow safety cutoffs
- Wide-range temperature capability (−20 °C to 95 °C) achieved via dual-mode refrigerant circuit management and optional heater integration
- ±0.1 °C temperature stability under steady-state conditions at nominal load, verified per ISO 17025-accredited calibration procedures
- CE-marked construction compliant with EN 61000-6-3 (EMC) and EN 61000-6-2 (immunity), supporting global power inputs (100–240 V AC, 50/60 Hz)
- Low-noise operation (<58 dB[A] at 1 m), suitable for shared laboratory environments
Sample Compatibility & Compliance
The T1 is compatible with standard laboratory coolant loops using silicone or fluoropolymer tubing (inner diameter 6–10 mm) and supports flow rates up to 12 L/min at ≤0.3 MPa pressure differential. It interfaces seamlessly with common distillation apparatuses—including micro-Kjeldahl systems, fractional distillation manifolds, and modular steam distillers—via standardized quick-connect fittings. All electrical and mechanical components meet IEC 61010-1 safety standards for laboratory equipment. The unit is CE-certified for sale in EEA markets and conforms to RoHS 2 (2011/65/EU) and REACH (EC 1907/2006) material restrictions. Documentation includes Factory Calibration Certificate traceable to NIM (National Institute of Metrology, China) and optional IQ/OQ documentation packages for GLP and GMP-regulated laboratories.
Software & Data Management
While the base T1 operates via front-panel interface, optional RS-485 or USB-to-serial connectivity enables integration with LabVIEW™, MATLAB®, or custom SCADA systems for remote monitoring and logging. Temperature setpoints, runtime hours, alarm history, and compressor cycle counts are stored internally with non-volatile memory retention (>10 years). Audit trail functionality (including user login timestamps and parameter modification logs) is available upon firmware upgrade to v2.3+, satisfying FDA 21 CFR Part 11 requirements for electronic records when deployed with validated software infrastructure.
Applications
- Coolant supply for condensers in steam, vacuum, and fractional distillation systems
- Temperature stabilization of digestion blocks in automated Kjeldahl nitrogen analyzers
- Heat sink for UV-Vis spectrophotometer accessories and CCD detectors
- Thermal regulation of small-scale molecular pumps and vacuum gauge controllers
- Low-temperature bath for enzyme kinetics assays, protein precipitation, or cold-trap operation
- Support for ASTM D86, ISO 3405, and USP distillation method compliance through reproducible coolant delivery
FAQ
What is the maximum recommended coolant flow rate for optimal thermal performance?
The T1 maintains rated refrigeration capacity up to 12 L/min; however, for sustained stability at extreme setpoints (e.g., −20 °C or 95 °C), a flow rate of 6–8 L/min is recommended to ensure adequate residence time and heat exchange efficiency.
Can the T1 operate continuously for 24/7 laboratory use?
Yes—the unit is rated for continuous duty (IEC 60034-1 S1 duty cycle) with thermal overload protection, automatic defrost cycling, and compressor run-time balancing algorithms to extend service life beyond 20,000 hours.
Is the open reservoir compatible with aqueous glycol solutions?
Yes—stainless-steel construction supports 0–50% (v/v) ethylene or propylene glycol mixtures for sub-zero operation; compatibility with high-pH or saline solutions requires optional passivated reservoir coating.
Does the T1 support external temperature feedback control?
Standard configuration uses internal Pt100 sensor; optional external probe input (via analog 0–10 V or 4–20 mA) enables process-loop control using user-defined setpoints from reactor jackets or distillation head thermocouples.
