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Membrane Cell System
Sepa CF II Membrane Cell System is a lab scale cross-flow membrane filtration unit that provides fast and accurate performance data with minimal amounts of membrane, product, expense, and time. Its unique patented* design simulates the flow dynamics of larger, commercially available membrane elements. Users can vary the operating conditions and fluid dynamics over broad ranges. Whether used as a membrane evaluation device, process development tool, or for small-scale production, the Sepa CF II Membrane Cell System from Sterlitech has the features and benefits that today’s users demand.*Patent #4,846,970
The Sepa CF Cross-flow membrane holder is recommended for water studies, paint, biotechnology, cell harvesting, plasma concentration, separations, food and beverage applications and membrane studies for just a few of the versatile uses for this small-scale industrial unit. It provides fast and accurate performance data for production scale-up of any reverse osmosis, nanofiltration, and ultrafiltration or microfiltration crossflow application.
This system is also ideal for testing membranes. The unit accepts any flat 19 cm x 14 cm (7.5 inch x 5.5 inch) membrane for a full 155 cm^2 (24 in^2) of effective membrane area. The hold up volume is 70 mL.
The holder can be operated in laminar flow to minimize denaturation of sensitive solutions, or in turbulent flow to maximize membrane life. A stainless steel concentrate flow control valve mounted on the concentrate outlet of the cell provides accurate control of pressure and flow over the membrane surface.
The cells are available in 316 stainless steel for use with high temperature and aggressive chemicals. We offer wastewater, processes, or a low foulant unit for pure water. The medium/high foulant unit is for wastewater and viscous solutions. The pressure rating (maximum) is 69 bar (1000 psi).
A pneumatic or hydraulic operated mechanism quickly closes and seals the cell. This provides uniform pressure on the membrane to assure a perfect seal. Compare this to ordinary time-consuming multiple bolt closures with their inherently uneven torque and leak problems.
Special feed flow pumps are not required. Most standard laboratory-scale peristaltic, diaphragm, or centrifugal pumps are suitable for use.
The connections are ¼-inch FNPT to the Feed (Concentrate) and Pneumatic/Hydraulic Port for the Piston. The permeate hose fittings has 1/8-inch FNPT connection.
Sterlitech Corporation also offers ready-made, individually wrapped membrane in single or assortment packs, for your needs. Please call Sterlitech customer service (1-877-544-4420) for additional information on this product and the membranes.
Benefits and Features:
- Accepts Any Flat Sheet Membrane
- Unique Piston Clamping Mechanism
- Compatible With Wide Range of Feed Flow Fluid Pumps
- Concentrate Flow Control Valve
- Stainless Steel Cell With Viton® O-Ring
- Wide Variety of Feed Spacers and Permeate Carriers
- Wide Variety of Shims and Spacers
- Multiple Ports for Instrumentation
- Laminar or Turbulent Flow
- Pressures to 1,000 psi (69 bar)