Laboratory water purification unit Puridest PD 4 R

Overview
The LAUDA Puridest PD 4 R is a laboratory water still for single distillation. It delivers ultra-pure water on demand with one-button operation and requires no specialist for commissioning or routine maintenance. The unit is suitable for bench or wall mounting and includes an integrated distillate storage tank.

Features

• Single-distillation water still (fully automatic) with storage tank, suitable for bench and wall mounting
• Condenser (cooling coil) located inside the storage tank, easily exchangeable
• Automatic cooling water cut-off to avoid unnecessary water consumption
• Electronic contamination monitoring with automatic distillation stop and visual cleaning indication
• Heating element, evaporator, storage tank and condenser manufactured from stainless steel
• Storage tank capacity equals twice the hourly output of the still
• Solenoid valve for water supply control
• Evaporator accessible for cleaning
• Automatic refill of the storage tank after distillate removal via electronic level detection
• Housing in powder-coated galvanised sheet steel, double-walled construction
• Distillate withdrawal via drain cock with continuous and touch positions
• Energy-efficient operation by distilling pre-heated cooling water and CO2 degassing via condenser outlet
• Thermostatic low-water cut-off

Technical data

• Model: Puridest PD 4 R
• Conductivity (single distillate) at 25 °C: 2.3 µS/cm
• Production output: 4 L/h
• Tank volume: 8 L
• Heater power max.: 3 kW
• Max. power consumption: 3 kW
• Cooling water flow rate: 0.8 L/min
• Cooling water pressure range: min. 3 bar / max. 7 bar
• Dimensions (W x D x H): 620 x 330 x 460 mm
• Weight: 21 kg
• Operating ambient temperature: 10–40 °C
• Power supply: 230 V; 50/60 Hz — Power cord with angled plug (CEE7/7)

Accessories and documentation

• Order no.: L003014
• Optional variants: voltage and plug options as specified
• Datasheet and technical documentation available in PDF (Puridest PD 4 R product sheet)
• Accessories: dechlorite filter, spare filling, phosphate cartridge (see LAUDA accessories)