The Great Wall VT-2000L Cryogenic Vapor Trap
| Brand | The Great Wall |
|---|---|
| Origin | Henan, China |
| Manufacturer Type | Direct Manufacturer |
| Country of Origin | China |
| Model | VT-2000L |
| Price | Upon Request |
| Empty Minimum Temperature | −80 °C |
| Cooling Method | Direct Contact Cooling |
| Temperature Display | Digital (Pt100 Sensor) |
| Temperature Setting Range | Adjustable Within Operating Range |
| Safety Protections | Delay Start, Overcurrent Protection, Overtemperature Protection |
| Moisture Removal Capacity | Up to 1 kg (Water-Based Systems) |
| Refrigeration Capacity | 260 W at −40 °C, 110 W at −60 °C, 40 W at −80 °C |
| Refrigerants | R404A + R23 Dual-Circuit System |
| Trap Chamber Dimensions | Ø160 mm × 240 mm |
| Chamber Material | 06Cr19Ni10 (AISI 304 Stainless Steel) |
| Vacuum Line Connection | Flexible Hose Fitting, OD Ø12 mm |
| Ambient Operating Conditions | 5–35 °C, ≤70% RH |
| Total Power Consumption | 1580 W |
| Rated Current | 7.2 A |
| Power Supply | 220–240 V~, 50 Hz |
| Overall Dimensions (W×D×H) | 520 × 528 × 1190 mm |
| Net Weight | 100 kg |
Overview
The Great Wall VT-2000L Cryogenic Vapor Trap is an engineered solution for high-efficiency condensable vapor removal in vacuum-based laboratory and industrial processes. Designed around a dual-refrigerant cascade cooling system (R404A/R23), it achieves stable operation down to −80 °C with direct-contact thermal coupling between the refrigeration circuit and the stainless-steel trap chamber. This architecture enables rapid condensation of water vapor, low-boiling solvents (e.g., ethanol, acetone), and moderately volatile process byproducts—thereby protecting downstream vacuum pumps from contamination, corrosion, and performance degradation. Unlike passive cold traps or dry ice alternatives, the VT-2000L provides precise, repeatable temperature control via a Pt100-sensed digital interface, allowing users to synchronize trap activation with vacuum pump sequencing or process staging. Its integration is especially critical in applications where vacuum integrity, solvent recovery, and emission compliance are jointly mandated—such as lyophilization pre-conditioning, battery electrode drying, and vacuum concentration of heat-sensitive pharmaceutical intermediates.
Key Features
- Stainless steel trap chamber (AISI 304 / 06Cr19Ni10) with seamless construction and electropolished interior for corrosion resistance in aqueous and ethanol-based systems
- Dual-stage cascade refrigeration system delivering sustained cooling power: 260 W at −40 °C, 110 W at −60 °C, and 40 W at −80 °C—optimized for variable load conditions
- Flexible configuration options: direct-chamber condensation mode or optional external glass condenser (for aggressive solvents including acids and chlorinated organics)
- Digital temperature display and adjustable setpoint control within the full operating range (−80 °C to ambient), enabling real-time thermal monitoring and process synchronization
- Comprehensive safety architecture including delayed compressor startup, overcurrent cutoff, and independent overtemperature shutdown—certified for continuous unattended operation
- Modular vacuum interface with standardized Ø12 mm flexible hose connection, compatible with common vacuum manifolds, KF flanges (via adapter), and peristaltic vacuum lines
Sample Compatibility & Compliance
The VT-2000L supports broad chemical compatibility through material segmentation: the primary 304 stainless steel chamber is validated for use with water, methanol, ethanol, isopropanol, and ethyl acetate under standard vacuum drying protocols (ASTM E145, ISO 12099). When paired with an optional borosilicate glass condenser (not included), the system extends compatibility to hydrochloric acid vapors (≤10 vol%), acetic anhydride, and dichloromethane—subject to appropriate venting and secondary containment per OSHA 1910.1200 and EU CLP Regulation (EC No. 1272/2008). All electrical components comply with IEC 61010-1:2010 for laboratory equipment safety; refrigerant handling adheres to EPA SNAP Program requirements and EU F-Gas Regulation (EU No. 517/2014). The unit is designed for installation in Class 10,000 cleanrooms (ISO 14644-1) and meets CE marking directives for electromagnetic compatibility (2014/30/EU) and low voltage (2014/35/EU).
Software & Data Management
The VT-2000L operates as a standalone hardware-controlled instrument without embedded firmware or network connectivity. Temperature setpoints and status indicators are managed locally via a front-panel digital interface with LED readout and tactile membrane buttons. While no proprietary software suite is provided, the unit supports analog output (0–10 V or 4–20 mA, configurable) for integration into centralized SCADA or PLC-based process control systems—enabling automated logging of trap temperature, compressor runtime, and fault events. For GLP/GMP environments requiring audit trails, external data loggers (e.g., Omega OM-DAQPRO-5300 or Testo 176-T4) may be connected to the analog output port to record time-stamped thermal profiles compliant with FDA 21 CFR Part 11 when paired with validated electronic signature workflows.
Applications
- Vacuum drying of lithium-ion battery cathode/anode slurries and separator films—preventing solvent residue and ensuring electrode porosity uniformity
- Cryogenic trapping upstream of rotary vane or diaphragm vacuum pumps during lyophilizer shelf pre-cooling and primary drying phases
- Condensation of volatile organic compounds (VOCs) and acidic vapors in pilot-scale thin-film molecular distillation systems
- Pre-freezing support for cryo-microtomes and electron microscopy sample preparation stations requiring stable sub-zero thermal staging
- Integration into custom-built vacuum gloveboxes for inert-atmosphere electrode drying, where moisture and oxygen levels must remain below 1 ppm
FAQ
Can the VT-2000L be used continuously for 24/7 operation in production environments?
Yes—its reinforced compressor duty cycle, thermal overload protection, and sealed refrigerant circuit are rated for continuous operation under ambient conditions ≤35 °C and ≤70% RH. Recommended maintenance includes biannual refrigerant pressure verification and annual desiccant replacement in the dryer filter.
Is the stainless steel chamber suitable for hydrochloric acid vapor capture?
No—304 stainless steel is not resistant to HCl vapor at elevated temperatures or concentrations. For such applications, the optional borosilicate glass condenser must be installed, and exhaust must pass through a caustic scrubber before atmospheric release.
What vacuum line diameter is supported, and can it connect to KF25 or ISO-KF40 flanges?
The standard interface is a compression-type soft hose fitting for Ø12 mm OD tubing. KF25/KF40 adapters are available as optional accessories (part nos. VT-ADP-KF25, VT-ADP-KF40) and require vacuum-rated Viton O-rings and proper torque calibration.
Does the unit include vacuum insulation or a dewar-style jacket?
No—the VT-2000L relies on active refrigeration rather than passive insulation. Its chamber wall thickness (4.5 mm) and high-efficiency copper-aluminum evaporator design minimize parasitic heat ingress without requiring vacuum-jacketed construction.
