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Charge valve for Pressure-fuge head for Vivacell 70

Use in combination with Pressure -fuge head (VCA701) for Vivacell® 70

Item no.:  VCA005

Availability:  On Request

Vivacell® 70 is a disposable ultrafiltration unit for the concentration of samples between 10 ml and 70 ml and can be used either in a centrifuge or for pressure filtration. Vivacell® 70 thus combines the ease of use of centrifugal devices with the flexibility and control provided by pressurized ultrafiltration cells. Vivacell® 70 is easy to assemble, requires no tubing connections or stirring mechanisms and can be adapted to equipment availability or to specific user preferences. For convenience, the units are simply spun in a large capacity centrifuge (carriers accepting 250ml bottles). For even faster concentration, particularly with difficult samples, the device can be pressurized with air or inert gas before centrifuging. For better process control or for handling of single samples, gas pressure can be combined with gentle orbital shaking. For highest simplicity of use with minimum equipment requirements, the device is pressurized and then left standing on a bench top or in a refrigerator. The concentrator features a vertical membrane that minimizes fouling, while the built-in deadstop of 150 µl will prevent concentration to dryness.

  • Easy to handle
  • High flux PES membrane
  • Vertical membrane design for ultra-fast concentration
  • High retentate recovery > 90 %
  • Total process flexibility
  • Universal rotor compatibility

Performance Characteristics

Time to concentrate 30x min at 20°C
50 ml start volume In centrifuge
1,000 g
As pressure cell
4 bar (60 psi) pressure
Solute recovery %
No Pressure 3 bar pressure No agitation Orbital shake
BSA 1.0 mg/ml (66,000 MW)
5,000 MWCO PES 37 18 50 25 96 %
10,000 MWCO PES 25 15 45 20 96 %
30,000 MWCO PES 22 13 45 20 93 %
IgG 0.25 mg/ml (160,000 MW)
50,000 MWCO PES 25 15 85 20 94 %
100,000 MWCO PES 15 11 90 18 90 %

Product properties

  • Primary Product Type
    Pressure Heads

Technical attributes

  • Electrical / Battery item
    No
  • Animal Components
    No
  • Hold-up volume
    < 200 µL