PRODUCTION OF LAB GRADE QUALITY WATER, ON DEMAND
Ultra Pure Systems ie. (UPW) Ultra Pure water system is designed to produce type 1 and type 2 lab or semiconductor manufacturing grade water with resistivity > 18.2 megohm, on demand, low total organic compounds (TOC) < 50 parts per billion (ppb), and sanitized for zero bacteria control.
The system consist of a makeup side and polish side. The makeup side uses a cartridge softener followed by a cartridge carbon bed to remove hardness and chlorine that is present in the city water feed. A reverse osmosis (RO) pump is used to pressurize and push water through a 2 pass RO membrane array that will remove 99.5% of the inorganic, metallic, and organic contaminants.
In the next step water is passed through a mix bed resin cartridge that further conditions the water to reach >18 megohm. At this stage water is stored in a bladder tank that supplies the polish loop. Water is recalculated through mix bed polishers to keep the water supply at >18 megohm.
HOW THE PROCESSING OF WATER WORKS
An UL listed controller energizes a solenoid to open the incoming city water valve during operation and close when tank is filled automatically. If any water leak detected within cabinet our automatic leak detector will shut off incoming water and produce a visual/audible alarm. Each cabinet is designed for simplicity of installation and filter maintenance.
The recalculating system's purpose is to keep the UPW polished and maintain > 18.1 resistivity at all times the system is in operation. The water is continuously cycled through a loop consisting of a resin bed and two stage UV (254nm/185nm) to remove trace contaminants. A final sub-micron filter (optional) can be added for loop particle control. The polish pump is sized to maintain the loop supply pressure of 40 to 45psi.
The system is built using semiconductor clean build protocol for piping system fabrication. The system utilizes PFA tubing with flare-tek connections for purity and contamination control. The system is built to provide fast system cleanup and rinse down, saving startup time as well as reducing rinse water going to the drain.
- Ready to run
- Plug & play
- On demand capability
- >18.2 megohm water quality
- No PVC or metallic piping components
- System build of clean PFA tubing and components
- Self contained aluminum cabinet
- Bayonet style pre filters for ease of replacement