FAQ

Accessories

A choice of either straight or elbow end adaptor kit is required for MaxCell cartridge applications:

Straight connector kit (56-4107-37)

Straight connector (56-4107-26)

Elbow connector kit (56-4107-38)

 

Two different wrench set available:

MaxCell standard wrench set (56-4107-39)

MaxCell wrench set with applied torque (56-4107-40)

 

TC clamps and gaskets for the feed, retentate and permate lines:

Clamp 50 mm TC in stainless steel (56-4106-69) or plastic (56-4106-68)

Gasket 50 mm i.d. 38 mm (1.5 inch) in silicone (56-4109-96) or nitrile (56-4109-97)

Clamp (toggle) 64 mm TC (56-4106-70)

Gasket 64 mm i.d. 50 mm (2 inch) in silicone (56-4109-98) or nitrile (11-0005-24)

 

To blank off the permeate, feed and retentate ports:

Blank off cap 50 mm TC in stainless steel incl. gasket (44-7135-01)

Blank off cap 50 mm TC in plastic (56-4109-90)

Clamp 50 mm TC in stainless steel (56-4106-69) or plastic (56-4106-68)

Gasket 50 mm in silicone (56-4109-96), nitrile (56-4109-97) or EPDM (18-1012-88)

Blank off cap 64 mm TC (56-4109-92)

Clamp (toggle) 64 mm TC (56-4106-70)

Gasket 64 mm in silicone (56-4109-98) or nitrile (11-0005-24)

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# Product Name Product Code Price
1 Straight Adapter Kit for MaxCell Cartridge 56410737 287.00 USD Add to cart
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2 Straight connector for MaxCell cross flow cartridge 56410726 118.03 USD Add to cart
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3 Elbow Adapter Kit for MaxCell Cartridge 56410738 416.00 USD Add to cart
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5 Standard Wrench Set for MaxCell Cross Flow Cartridge 56410739 437.00 USD Add to cart
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6 Wrench Set with Applied Torque for MaxCell Cross Flow Cartridge 56410740 945.00 USD Add to cart
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7 Clamp 50 mm (1.5") TC (Toggle Clamp) 56410669 68.88 USD Add to cart
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8 TC-Gasket 51 mm i.d. 10 mm, EPDM 18101288 172.20 USD Add to cart
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8 Gasket 50 mm (1.5") TC i.d. 38 mm, silicone 56410996 80.72 USD Add to cart
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8 50 mm (21.5") TC-Gasket, Buna-N 56410997 68.88 USD Add to cart
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9 Clamp 64 mm (2") TC 56410670 77.49 USD Add to cart
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10 Gasket 64 mm (2") TC i.d. 50 mm, silicone 56410998 95.79 USD Add to cart
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11 Blind Flange, 51 mm TC 44713501 92.56 USD Add to cart
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11 50 mm (1.5") TC Blank-Off Cap, polysulfone 56410990 78.57 USD Add to cart
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12 Clamp 50 mm TC 56410668 68.88 USD Add to cart
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MaxCell O-Ring Set 56410692 64.57 USD Add to cart
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The use of a permeate flow control is strongly recommended during upstream clarification of target material. Permeate flow control rate is dependent on the process flux (LMH) and surface area.

For permeate flow control you need a permeate pump kit. For information regarding permeate pump kit for GrandStand 450 (GSM450PERPRP) and for GrandStand 550 (GSM550PERPRP) see below.

Accessories for MaxCell cartridges that have to be ordered separately:

Straight connector kit (56-4107-37)

Straight connector (RBMX-16PS-ST)

Two different wrench set available:

MaxCell standard wrench set (56-4107-39)

MaxCell wrench set with applied torque (56-4107-40)

Permeate side connections are not included with the GrandStand system. Please attach only light weight plastic fittings to the permeate side. To prevent possible damage to the cartridge, do not attach stainless steel valves directly to the permeate port.

To blank off the permeate ports of the cartridge:

Blank off cap 50 mm TC in stainless steel incl. gasket (44-7135-01)

Blank off cap 50 mm TC in plastic (56-4109-90)

Clamp 50 mm TC in stainless steel (12-4100-30) or plastic (56-4106-68)

Gasket o.d. 50 mm i.d. 38 mm, 1.5 inch (12-4100-34)

To blank off retentate and feed ports of cartridge, when stored off the system:

Blank off cap 64 mm TC, plastic (56-4109-92)

Clamp 64 mm TC (12-4100-28)

Gasket o.d. 64 mm i.d. 51 mm, 2 inch (12-4100-33)

 

Please note that the item numbers are not necessarily in sequential order.


When stored off the system, store the cartridge with storage solution using blank off cap, gasket and clamp for each port.

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# Product Name Product Code Price
3 Clamp 50 mm (1") TC 12410030 13.99 USD Add to cart
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3 Clamp 50 mm TC 56410668 68.88 USD Add to cart
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3 Clamp 50 mm (1.5") TC (Toggle Clamp) 56410669 68.88 USD Add to cart
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6 TC-Gasket 51 mm i.d. 10 mm, EPDM 18101288 172.20 USD Add to cart
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6 Blind Flange, 51 mm TC 44713501 92.56 USD Add to cart
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6 50 mm (1.5") TC Blank-Off Cap, polysulfone 56410990 78.57 USD Add to cart
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7 50 mm (1.5") TC 13 mm (0.5") Barb 56410986 119.46 USD Add to cart
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7 50 mm TC i.d. 38 mm (1.5") 19 mm (0.75"ch) Barb 56410987 119.46 USD Add to cart
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9 MaxCell O-Ring Set 56410692 64.57 USD Add to cart
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9 Straight connector for MaxCell cross flow cartridge 56410726 118.03 USD Add to cart
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9 Straight Adapter Kit for MaxCell Cartridge 56410737 287.00 USD Add to cart
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9 Elbow Adapter Kit for MaxCell Cartridge 56410738 416.00 USD Add to cart
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Standard Wrench Set for MaxCell Cross Flow Cartridge 56410739 437.00 USD Add to cart
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Wrench Set with Applied Torque for MaxCell Cross Flow Cartridge 56410740 945.00 USD Add to cart
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Troubleshooting

Find solutions to product related issues. For unlisted issues please contact local Cytiva service representation.

General Advice for Troubleshooting when Using Cross Flow Filters

Please check the following items during troubleshooting:

Samples volume and system working volume have been used in calculations of concentration factor and diafiltration beforehand.

Process settings of Membrane Capacity, Flux, Shear (or volumetric cross flow rate) have been properly applied for both sample characteristics and membrane pore size or NMWC designation.

Filter is properly wetted before use (also make sure that there is no air lock in the filters created by condensation on microfiltration membranes as a result of incorrect autoclave settings).

Ensure CFF filters are properly wetted before starting processing. This may be tested against new cartridge “Clean Water Flux Test or against the water flux specifications in the Certificate of Quality. Microfitlration membranes are shipped dry and are rewetted with water or buffer. Hollow fiber ultrafiltration membranes are shipped in glycerol wetting preservative. These filters may require 15-20% alcohol/water solution to restore wetting or remove glycerol. Flat sheet cassette ultrafiltration devices (for example, KvickLab and KvickFlow Cassettes) are shipped in a solution of NaOH/Glycerol which must be flushed out before use.

Prior to using cassettes, make sure the single gasket is in the correct position in the holding device and that the cassette(s) within are oriented properly in the holder.

Check integrity of cassette system using water under pressure on retentate side to 1 barg to check for leaks in the seal of the cassette with the stainless steel holding device.

Check to see that cartridges or cassettes that have been previously used are checked for integrity (air diffusion or bubble point tests) and for cleanliness (normalized Clean Water Permeability before processing).

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