Yarong SZ-93A Dual-Stage Quartz Glass Distillation Apparatus

Overview

The Yarong SZ-93A is a dual-stage quartz glass distillation apparatus engineered for the production of high-purity water in analytical, pharmaceutical, and research laboratory environments. It operates on the principle of sequential vaporization and condensation—first-stage distillation removes volatile impurities and dissolved ions, while the second stage further eliminates trace organics, silica, and residual metal contaminants through re-evaporation and re-condensation. Unlike conventional stainless-steel or copper-heated systems, the SZ-93A employs an all-quartz heating element and a fully non-metallic wetted path: distilled water never contacts metallic surfaces at any point—from evaporation chamber to condenser coil to collection vessel. This design ensures minimal leaching of transition metals (e.g., Fe, Cu, Ni) and eliminates catalytic degradation of sensitive analytes, making it suitable for trace elemental analysis (ICP-MS, AAS), cell culture media preparation, and ultrapure solvent synthesis.

Key Features

• Quartz tube heating system offering high thermal efficiency, uniform heat distribution, and extended service life (>5,000 operating hours under nominal load)
• Dual-stage distillation architecture with independent temperature-regulated boiling chambers and a vertically aligned recirculating condenser
• Non-metallic fluid path: borosilicate glass boiling flasks, quartz heater sleeves, PTFE-coated gaskets, and engineering-grade thermoplastic support fixtures
• Integrated safety architecture comprising a bimetallic thermostat (±1 °C accuracy), reed-switch water-level sensor, and fail-safe relay circuit that de-energizes the heater within 2 seconds of low-water detection
• Thermal insulation jacket surrounding the primary heating flask reduces radiant heat loss and improves energy efficiency by up to 22% compared to unshielded quartz systems
• Modular mechanical design allows for rapid disassembly, cleaning, and validation—critical for GLP-compliant laboratories requiring documented maintenance intervals

Sample Compatibility & Compliance

The SZ-93A is intended for the purification of deionized or tap water feedstock into Type I or ASTM Type II reagent water. Its all-glass/quartz construction complies with ISO 3696:1987 (Water for Analytical Laboratory Use) specifications for conductivity (<0.1 µS/cm at 25 °C) and total oxidizable carbon (<50 ppb). The absence of metal contact meets USP requirements for purified water used in parenteral formulation support. While not certified to FDA 21 CFR Part 11 out-of-the-box, its analog control interface supports integration into validated workflows via external data loggers compliant with ALCOA+ principles (Attributable, Legible, Contemporaneous, Original, Accurate, Complete, Consistent, Enduring, Available).

Software & Data Management

The SZ-93A utilizes an analog control system with manual setpoint adjustment and visual status indicators (power-on LED, heating active LED, water-level status lamp). No embedded firmware or digital interface is present; however, the device is compatible with third-party temperature and flow data acquisition modules (e.g., Omega OM-DAQPRO-5300 series) for continuous monitoring and audit-trail generation. Relay outputs can be wired to PLC-based supervisory systems for centralized lab equipment management. For regulated environments, users may implement paper-based or electronic batch records aligned with ISO/IEC 17025 clause 7.7 (Control of Records) and GMP Annex 11 (Computerized Systems).

Applications

• Preparation of blank matrices for trace metal analysis (ICP-OES, ICP-MS, GF-AAS)
• Generation of solvent-grade water for HPLC mobile phase preparation and LC-MS calibration standards
• Production of ultra-low conductivity water for semiconductor wafer rinsing and photolithography support
• Feedstock purification for ultrapure acid digestion systems (e.g., Milestone UltraWave, CEM Mars 6)
• Research-grade water supply in radiochemistry labs where alpha/beta emitters must remain undetectable
• Backup purification source in facilities lacking central ultrapure water infrastructure

FAQ

What is the maximum recommended feedwater conductivity for optimal performance?
For consistent Type I water output, feedwater conductivity should not exceed 5 µS/cm. Higher values increase scaling risk on quartz surfaces and reduce distillate purity.
Can the SZ-93A be operated continuously for 24 hours?
Yes—provided feedwater level is maintained above the minimum mark and ambient temperature remains between 15–30 °C. Continuous operation requires periodic inspection of condenser coolant flow and quartz heater integrity.
Is calibration required before first use?
No factory calibration is needed; however, users must verify temperature controller accuracy using a NIST-traceable thermometer prior to qualification.
How often should the quartz heating tube be inspected?
Visual inspection is recommended every 200 operational hours; replacement is advised after 5,000 hours or upon observation of discoloration, microcracking, or reduced heating efficiency.
Does the unit meet CE or UL safety certification standards?
The SZ-93A conforms to IEC 61010-1:2010 for laboratory electrical equipment but does not carry CE or UL marks. Installation must comply with local electrical codes and include dedicated circuit protection (32 A breaker, Class B RCD).