Cold-Clean™ USP
Cold-Clean™ refers to Smith Engineering’s line of DI-Ultrafiltration Purified Water Systems that are a perfect fit for manufacturing applications that require low/no microbial and/or endotoxin content. Our Cold-Clean™ line provides purified water meeting the quality requirements found in USP Purified and WFI, all without the use of heat. System sizes begin at a 5 gpm flow rate and can be built in multiples of that size. Typically incorporation of a serpentine distribution loop is required; materials are chosen based on the final water quality specification requirement.
Cold-Clean™ is a term coined by Smith Engineering to describe the philosophy adhered to in the manufacture of water treatment and distribution system meeting a variety of purity standards. Cold-Clean™ is an alternative to heated technologies for the production of low/no microbial process water. Typical design specification include the following:
• Resistivity / Conductivity
• pH
• Microbial / Endotoxin Levels
• Total Organic Carbon
Methods:
- RO/DI or DI feeds Microfiltration/Ultrafiltration
- Recirculation Design Within the treatment equipment and storage
- Zero Dead Leg Design and Components
- Continuous Distribution System Velocity
- Ultraviolet Sterilization
- Routine Chemical Sanitization
Materials:
- Quality materials of construction including 316 stainless steel housings and vessels
- Sanitary, non-metallic piping materials beyond the last point of treatment
- USP Class VI Plastics and Elastomers
- Membrane-friendly sanitizers
Motivation:
- Significantly lower capital cost than traditional stainless steel systems
- No utility requirement for steam/heated water
- Lower operating cost; no requirement to power expensive, energy consuming heaters or stills
- Easily installed, modified, and expanded
- Design thru Validation capabilities from a single vendor
- Green design