Two separate drying systems: one for the chamber and one for the process path and racks. Ceramic heating elements (steam heating is an option) allow variable drying temperature control for different materials. All components are upstream of the final HEPA filters. Air is exhausted to a vent connection.
DOP ports and differential pressure transmitters are standard features, providing essential routine monitoring capability. Magnehelic® differential pressure gauges are available (option) for visual verification of filter loading.
Robust and sanitary construction
Sanitary main circulation pump with vertical outlet. Sloping (min 2%) design and smooth (Ra<0.6μm/25μ”), crevicefree construction of chamber, piping and racks eliminates water retention and sites for biofilm or corrosion. Deadlegs are limited to a maximum of 4 x pipe diameter (L/D<4). Type 316L stainless steel is used throughout, with EPDM, PTFE or other FDA-approved gaskets (21CFR part 177). Globally available components, e.g. Gemu process valves, are standard. Orbital welding is used wherever possible and extensive documentation is provided.
Multi-level washing optimizes load configuration and minimizes processing time. Water is heated using a steam-water heat exchanger in the sump of the chamber (electrical heating optional).
All models are provided with brush finish stainless steel fascia panels for recessed installation, with additional side panels to form a cabinet as an option. Single or dual cross contamination barriers to maintain clean area classification and facilitate room air balancing. Available on larger models.
The washer is fitted with 1 to 5 peristaltic dosing pumps (according to application) for cleaning and neutralization agents to aid the mechanical cleaning process. Additional pumps are available. Sanitary dosing valves are uniquely welded directly to the chamber wall to ensure proper rinsing. Pump pressure is monitored and a conductivity sensor is available to confirm proper additive dosing.
Final rinse with WFI
The sump is filled with WFI and recirculated throughout the hydraulic circuit to provide a single fluid path design ensuring complete rinsing of the entire system. The process continues for a time interval (determined by conductivity and/or TOC during process development studies). Optional conductivity and/or TOC monitors are available to confirm that all cleaning agents and soil have been removed. This process minimizes WFI consumption and provides a validatable, repeatable result. A drain cooler system is available to limit the drain outlet temperature, typically to 60°C.
Custom designed inventory systems
Racks and frames are designed to solve specific cleaning and drying challenges, based on extensive experience gained over many years and hundreds of projects. 3D CAD modelling software is used to assure that cleaning is effective internally and externally.
User friendly construction
Doors slide or are hinged to provide convenient and ergonomic loading while optimising space usage (overall footprint) and ergonomics. All doors comprise of two sheets of toughened glass, with an air gap providing heat and noise insulation. The glass door allows visual monitoring of the cleaning action – e.g. spray arm rotation, facilitating qualification. Optional chamber illumination.