HS.Z68-20 Stainless Steel Electric Distillation Apparatus

Overview

The HS.Z68-20 Stainless Steel Electric Distillation Apparatus is a benchtop-to-floor-standing laboratory-grade water purification system engineered for continuous, reliable production of high-purity distilled water. Based on classical thermal distillation—where feed water is heated to boiling, vaporized, then condensed in a cooled stainless steel condenser—the unit separates non-volatile contaminants (e.g., ions, endotoxins, heavy metals, organic particulates) from the vapor phase. This principle ensures compliance with ASTM D1193 Type IV and ISO 6425 specifications for purified water used in analytical sample preparation, reagent formulation, sterilization support, and general laboratory applications where conductivity ≤ 5.0 µS/cm and total oxidizable carbon (TOC) < 500 ppb are required. Constructed entirely from electropolished AISI 304 stainless steel—including evaporator chamber, condenser coil, collection vessel, and external housing—the apparatus resists chloride-induced pitting, acid/base exposure, and long-term thermal cycling degradation.

Key Features

• Fully welded, seamless AISI 304 stainless steel construction with mirror-finish interior surfaces to minimize biofilm adhesion and facilitate cleaning validation.
• Intelligent water-level management system: integrated float sensor triggers audible/visual low-water alarm, cuts heating power, initiates automatic refill via solenoid valve, and resumes distillation after safe level restoration.
• Dual-stage thermal protection: primary thermostat limits maximum evaporator temperature; secondary overtemperature cutoff provides redundant fail-safe shutdown.
• Real-time status monitoring via front-panel LED indicators: green “POWER ON”, amber “HEATING ACTIVE”, and red “LOW WATER” with dedicated alarm buzzer.
• Optimized condenser geometry with extended surface area and counter-current cooling design ensures >99.9% vapor-to-liquid conversion efficiency and minimal carryover risk.
• Modular electrical interface compatible with standard industrial 380 V AC / 50 Hz three-phase supply; includes NEMA 4X-rated terminal box with IP65 ingress protection.

Sample Compatibility & Compliance

The HS.Z68-20 accepts municipal tap water, deionized water, or pre-filtered groundwater as feedstock. It is not intended for seawater, high-silica well water, or wastewater streams without upstream pretreatment. Output meets ASTM D1193 Type IV purity requirements for non-critical laboratory use and supports GLP documentation workflows when paired with validated logbooks and manual batch records. While not certified to FDA 21 CFR Part 11, its operational parameters (temperature, runtime, output volume) are manually recordable for audit trails. The unit complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), and conforms to CE machinery directive 2006/42/EC when installed per manufacturer instructions.

Software & Data Management

This analog-controlled distillation apparatus does not incorporate embedded microprocessors or digital data logging. All operational parameters—including start/stop time, accumulated runtime, and manual output volume tracking—are recorded externally using laboratory notebooks or LIMS-integrated spreadsheets. Optional third-party USB temperature dataloggers (e.g., Omega OM-DAQPRO-5300) may be mounted on the condenser outlet to monitor distillate temperature stability (±0.5 °C) during qualification studies. Calibration of the low-water sensor is performed annually using traceable liquid-level verification kits compliant with ISO/IEC 17025.

Applications

• Preparation of solvent blanks and calibration standards in atomic absorption spectroscopy (AAS) and inductively coupled plasma mass spectrometry (ICP-MS).
• Feed water for autoclave reservoirs and glassware washer rinse cycles in pharmaceutical QC labs.
• Media preparation for microbiological testing per USP & EP guidelines.
• Buffer formulation in molecular biology workflows requiring low ionic residue.
• Supporting ASTM E2912 (water purity for corrosion testing) and ISO 3696 (laboratory grade water) protocols.
• On-site distilled water generation in field laboratories lacking centralized purification infrastructure.

FAQ

What feed water quality is recommended for optimal performance and longevity?
Tap water with total dissolved solids (TDS) < 500 ppm and free chlorine < 2 ppm is ideal. Pre-filtration through activated carbon and sediment filters is strongly advised to reduce scaling and extend service intervals.
Can the HS.Z68-20 produce water suitable for HPLC or cell culture applications?
No—this unit produces ASTM Type IV water only. For HPLC mobile phase preparation or mammalian cell culture, additional polishing steps (e.g., UV oxidation, 0.22 µm filtration, or mixed-bed deionization) are required.
Is routine maintenance required, and what does it involve?
Yes: monthly descaling of the evaporator chamber using citric acid solution (5% w/v, 60 °C, 30 min), quarterly inspection of gasket integrity, and annual verification of low-water sensor response time and thermostat accuracy.
Does the unit include a built-in storage tank or require continuous drainage?
It operates in continuous-output mode and must be connected to a dedicated collection vessel or floor drain. No integrated reservoir is provided.
What safety certifications does the apparatus hold?
It meets CE marking requirements under Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU, with factory-tested dielectric strength (>1500 V AC, 1 min) and earth continuity (<0.1 Ω).