BN PVDF 50kDa

Summary

Product Identification

Synder Filtration's BN (PVDF 50kDa) Ultrafiltration Elements are sanitary, spiral-wound elements. These elements offer an optimal combination of flux and rejection across a comprehensive range of molecular weight cut-offs (MWCOs).

Benefits include:

• Conforms to 3-A, FDA, and USDA sanitary standards
• Widest range of UF MWCOs available
• Good resistance to pH and temperature
• High resistance to fouling
• Customizable dimensions for unique housings

Common applications:

• Brine clarification
• Protein concentration

Operating Limits

• Maximum Temperature: 55°C (131°F)
• pH Range @ Maximum Temperature: 3-9
• pH Range @ Ambient Temperature: 2-10

Pressure

• Max Inlet Pressure: 120 PSI (8.3 Bar)
• Min Outlet Pressure: 10 PSI (0.7 Bar)
• Max Differential Pressure per Element: 18 PSI (1.2 Bar)
• Max Permeate Backpressure: 5 PSI (0.3 Bar)

Note: Soft start on boost pumps is required to minimize pressure/flow shocks to elements.

Cleaning Parameters

• Maximum Temperature (Short term <30 min): 50°C (122°F)
• pH Range @ Maximum Temperature: 2-11
• pH Range @ Ambient Temperature: 1.8-11

Chlorine Exposure

• Free Chlorine During Operation:
  • Normal: 0 ppm
  • Maximum: <0.1 ppm
• Chlorine During CIP at pH 10.8-11.0 and 50°C:
  • Normal: 150 ppm
  • Maximum: 180 ppm

Note: Maximum chlorine exposure for all elements is 30 minutes per day at the pH and temperature conditions listed above.

Feed Water

Dairy Product Total Solids (T.S.) Limits

These limits vary depending on the feed spacer (in mils):

• Sweet Whey Max. T.S.: 15, 25, 28, 30
• Acid Whey Max. T.S.: 15, 24, 26, 28
• Skim Milk Max. T.S.: 14, 24, 26, 28
• Whole Milk Max. T.S.: 15, 30, 33, 35

Note: Trials should be made to determine temperature and viscosity effects.

Mechanical / Hydraulic

The datasheet provides detailed tables for:

• Element Dimensions: Including model number, diameter (B) in, length (A) in, and permeate tube (P.W.T.) inner diameter (ID).
• Membrane Area: In square feet, varying by model and feed spacer thickness (24, 31, 46, 65, 80 mils).
• Recommended Element Cross Flow Rate: In m³/hr and gpm, varying by element diameter and feed spacer thickness. The recommended cross flow rate is subject to differential pressure limitations and specific applications.
• Element Descriptions: Including model number, outer diameter (OD) in, length (L) in, inner diameter (ID)* in, and weight in pounds (lb) and kilograms (kg).

See the official PDF for exact tabulated values.

Customization options are available for elements, including different diameters, outer diameter (OD) or vessel/housing inner diameter (ID), element inner diameter (ID), and length. Elements can also be supplied with or without a controlled bypass tail. Additional feed spacers are available.

Disclaimer

This summary is based on extracted text and may not include all figures, footnotes, or the latest revisions from the original PDF datasheet. For contractual data, always refer to the specific OEM PDF revision used on your project.

Official datasheet (PDF)

PDF datasheet