Vacuum Filtration Systems(Product Description Page only)

Product#: NST-Vacuum-Filtration-Systems
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Vacuum Filtration Systems(Product Description Page only)


Cat. No.: NST-Vacuum-Filtration-Systems: See below


* This page is only for the Description "Vacuum Filtration Systems" products. 
* Please, check the below table, if you need to, then click the Go button. 



Description
Nest Disposable Vacuum Filtration System is useful for large volume sample separation and sterilization for tissue culture media and other biological buffers. The units include PES or PVDF membrane filters with graduated filter tops made with polystyrene, and Acrylonitrile-Butadiene-Styrene necks with polystyrene receiving bottles. A separated sterile polyethylene cap is included. Filtration system is manufactured from raw material of high transparency polystyrene (PS) in three different volumes: 250ml/500ml/1000ml. They are available in three styles: complete filter/storage bottle systems, bottle top filters, and receiving bottles only.


Features
  • High flow rates and throughput;
  • Low protein binding and low chemical extractable;
  • Filtration membrane: PES* or PVDF*;
  • Pore size: 0.10μm0.22μm or 0.45μm
  • E-beam Sterile
  • DNase-free, RNase-free
  • Non-pyrogenic, non-endotoxin and surfactant free 
  • SAL level 10-6
  • Volume (mL): 50 mL, 150 mL, 250mL, 500 mL, or 1000 mL 


  PES  vs  PVDF  
  PVDF (polyvinylidene fluoride) and  PES (polyethersulfone) are types of filter membranes. 
  They have similar molecular weight cutoffs and morphologies. 
  However, they have different properties, including: 
  Oxidant resistance:   PVDF membranes have higher oxidant resistance than PES membranes.
  Mechanical strength:   PVDF membranes have higher mechanical strength than PES membranes.
  Hydrophobicity:   PVDF membranes are more hydrophobic than PES membranes.
  Maximum flow rate:   PES membranes have roughly three times the maximum flow rate of PVDF membranes.
  Fouling/removal efficiency:   PVDF membranes have higher fouling/removal efficiency than PES membranes.
  Clogging:   PES membranes clog more slowly than PVDF membranes.



 *Shipping information : This items are over size shipment items 
Image CAT # Volume (mL) Membrane Pore Density (μm) Sterile Packing Unit Link
Vacuum250.png NST-342001 250 PES 0.22 Yes 1/pk, 12/cs Go_Button
NST-342101 250 PVDF 0.22 Yes 1/pk, 12/cs Go_Button
Vacuum500.png NST-343001 500 PES 0.22 Yes 1/pk, 12/cs Go_Button
NST-343101 500 PVDF 0.22 Yes 1/pk, 12/cs Go_Button
Vacuum1000.png NST-344001 1000 PES 0.22 Yes 1/pk, 12/cs Go_Button
NST-344101 1000 PVDF 0.22 Yes 1/pk, 12/cs Go_Button
 
Image CAT # Volume (mL) Membrane Pore Density (μm) Sterile Packing Unit Link
Vacuum-5.png NST-342011 250 PES 0.22 Yes 1/pk, 24/cs Go_Button
NST-342111 250 PVDF 0.22 Yes 1/pk, 24/cs Go_Button
NST-343011 500 PES 0.22 Yes 1/pk, 24/cs Go_Button
NST-343111 500 PVDF 0.22 Yes 1/pk, 24/cs Go_Button
Vacuum-6.png NST-342021 250     Yes 1/pk, 24/cs Go_Button
NST-343021 500     Yes 1/pk, 24/cs Go_Button
NST-344021 1000     Yes 1/pk, 12/cs Go_Button

 

Product Parameters

Specification(ml)

Membrane Dia(mm)

Capacity(ml)

Max.Temp (0C)

Neck Dia(mm)

Height (mm)

Material of Neck

250

50

250

45

45

198

ABS

500

90

500

45

45

247

ABS

1000

90

1000

45

45

280

ABS

 
Optimal Design
 


Nest-filter-units-1


Molded clear graduation on both filter tops and receiving bottles.


Nest-filter-units-2.png 


Angled hose connecter simplifies vacuum line attachmen. Hose adapters fit multiple hose diameters.

Nest-filter-units-3.png

Bottle top filters have a neck size 45 mm and fit most 45 mm neck sized plastic and glass media

storage bottles.

Nest-filter-units-4.png

Easy grip style receiving bottles can also be used as storage bottles.

Nest-filter-units-5.png

Cap of receiving bottle is individually packaged to prevent contamination.

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Receiving bottles maximum volume exceeds the maximum volume for filter tops, which eliminates overflow contamination.

Filter Units Size

Receiving Bottle Max. Volume

250 ml

300 ml

500 ml

600 ml

1000 ml

1250 ml

 
Comparison Tables of Different Membranes
PES 0.22 membrane

Brand

NEST

C brand

TF brand

Hydrophilic

Instantaneous wettability

Thickness (μm)

136-143

149-155

173-176

Flow rate (s) Φ47mm/+0.03MPa/50mL

10.32, 9.94

11.91, 11.42

9.09, 9.21

Bubble point (kPa)

-

-

-

IPA bubble point (kPa)

162-188

136-155

174-190

BSA binding μg/cm2

4.06

4.06

11.59


PVDF membrane

Brand

NEST

M brand (U.S.A)

Type

PVDF 0.22

Durapore 0.22

Thickness (μm)

126

106

Wettability (Water)

Pass

Pass

Wettability (Saturated NaCl Solution)

Pass

NG

Flow rate +0.03MPa/50mL

55

70.34??71.00

Bubble point (kPa)

>350

405

BSA binding μg/cm2

13.5

11.82


Packing Information
  • Thick PE bag packing;
  • Lot number is printed on the sticker for tracking;
  • Strong paper carton ensures safety of goods during transportation.
Flow Rate Comparison
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