Laboratory water distiller Puridest PD series

for the pharmaceutical industryautomaticstand-alone

Overview
LAUDA Puridest water stills produce ultra-pure, low-gas, germ- and pyrogen-free distillate. The product family refines raw water to conductivities down to below 1.6 µS/cm and meets DAB regulations and relevant international pharmacopeia requirements. Available contact materials include Glass/Glass and Stainless steel/Glass depending on model.

Operation & Maintenance
Units are designed for plug-in operation: connect raw water and mains power and ultra-pure water can be extracted via push-button. Start-up and operation do not require specialist personnel. Routine maintenance is minimal and consists mainly of removing deposits; LED indicators display operating status and cleaning requirement.

Benefits and added value

• Water shortage protection integrated on all models
• Energy savings by recovering heat through distillation of the heated cooling water
• Only mains power and raw water required for operation
• No cartridges, adsorbents or regular ion-exchanger regeneration necessary

Working range
Puridest stills are suitable for laboratory and small production environments where reliable ultra-pure water is needed without complex service. Devices tolerate a broad range of raw water qualities and do not require specialist commissioning. Extraction is by push-button.

Product line / Variants (table)
Product | Heater power max. | Production output | Conductivity stage 1 / 25 °C | Contact material
Puridest PD 4 D | 7 kW | 4 L/h | 2.2 µS/cm | (not specified)
Puridest PD 4 DG | 5.8 kW | 4 L/h | 2.2 µS/cm | Glass/Glass
Puridest PD 8 D | 11.5 kW | 8 L/h | 2.2 µS/cm | Stainless steel/Glass

Device dimensions
Puridest PD 4 D — 580 x 280 x 570 mm
Puridest PD 4 DG — 680 x 365 x 390 mm
Puridest PD 8 D — 700 x 390 x 700 mm

Characteristics / Technical specifications

• Distillate quality: conductivities down to below 1.6 µS/cm (product family)
• Regulatory compliance: DAB regulations and international pharmacopeia
• Water shortage protection: integrated on all models
• Energy optimisation: heat recovery via distillation of heated cooling water
• Operation: plug-and-play — only raw water and mains power needed; simple extraction via push-button
• Maintenance: minimal — removal of deposits; no consumable cartridges or ion-exchanger regeneration required
• Indicators: LED lamps for operating status and cleaning notifications
• Contact materials: Glass/Glass or Stainless steel/Glass depending on model
• Model data: PD 4 D (7 kW / 4 L/h), PD 4 DG (5.8 kW / 4 L/h), PD 8 D (11.5 kW / 8 L/h)
• Typical conductivity (stage 1 / 25 °C) for listed variants: 2.2 µS/cm