Depending on the choosen version, LAB200 is able to install filtering plates with recessed chambers or also mixed pack composed by recessed plate chambers and membrane squeezing plates.
Of course the use of plates with membrane squeezing requires the high pressure generation system to proper squeeze the natural rubber membranes of the membrane plates.
Because of this, the installation of a mixed plate pack (mixed plate pack means recessed plates and membrane plates together) is limited to the versions PLUS and TOP of the LAB200-CEFS/CPFS/EFS/PFS; because BASIC and STD do not install the high pressure generation system and because of this is not possible to use the membrane squeezing system.
As standard, all the plates (both membrane or recessed) installed in the LAB200-CPFS series are made of PP (Polypropylene).
PP is the most common material used all over the world also in industrial filterpresses.
In some applications, due to the kind of fluid or slurry that must be filtered, ore due to the T° of application, PP could be not be chemically compatible with the application.
For this reason, is also possible to install Stainless Steel AISI 304 or AISI 316 plates, with some limitations:
Limitation n°1:
Plates is AISI 304/316 have no chamber thickness (chamber thickness=0) and because of this is mandatory to use a spacer between two filtering plates to have a filtering volume
Limitation n°2:
Plates in AISI 304/316 cannot be supplied with membrane squeezing system
This is the filtering plate who is installed against the lab-filterpress mobile head.
Materials available: PP / AISI 304 / AISI 316 – In stainless stell the chamber volume is=0 mm
This is the filtering plate who is installed against the lab-filterpress fixed head.
Materials available: PP / AISI 304 / AISI 316 – In stainless stell the chamber volume is=0 mm
This is the intermediate recessed plate that must be installed when the filtering plates are more than 2. It must be installed between mobile head recessed plate and fixed head recessed plate to increase the number of filtration chamber. You can increase the chamber thickness by using spacers. Materials available: PP / AISI 304 / AISI 316 – In stainless stell the chamber volume is=0 mm
Spacers are provided to increase chamber volume. They can be mounted between plates (for example between mobile head recessed plate and fixed head recessed plate.).In standard version we have 3 series of spacers: +5 mm / + 10 mm / +15 mm; when using SS plates we can also provide the +25 mm spacer version
This plate has got the membrane squeezing system to squezze the residual cake in order to increase the dryness of the cake. This plates is only available in intermediate version and must be installed between 2 recessed plates (with or without spacers, depending on the desired filtering volume).
These are the value of filtering volume and filtering areas of the plates in Polypropylene and spacer available to install in LAB200 pilot filterpress unit
RECESSED PLATE
Standard Chamber Thickness: 10 mm
Standard Recessed Chamber Volume = 0.190 liters
Standard Filtration Area = 4.23 dm^2
MEMBRANE PLATE
Standard Chamber Thickness: 14 mm (before squeezing)
Standard Recessed Chamber Volume = 0.413 liters
Standard Filtration Area = 4.23 dm^2
SPACERS
Recessed Chamber Volume with +5 mm spacer = +0.116 liters
Recessed Chamber Volume with +10 mm spacer = +0.231 liters
Recessed Chamber Volume with +15 mm spacer = +0.347 liters
These are the value of filtering volume and filtering areas of the plates in Stainless Steel and spacer available to install in LAB200 pilot filterpress unit
PLATES
Standard Chamber Thickness: 0 mm
Standard Recessed Chamber Volume = 000 liters
Standard Filtration Area = 4.23 dm^2
SPACERS
Recessed Chamber Volume with +5 mm spacer = +0.116 liters
Recessed Chamber Volume with +10 mm spacer = +0.231 liters
Recessed Chamber Volume with +15 mm spacer = +0.347 liters
Recessed Chamber Volume with +24 mm spacer = +0.557 liters
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE
Chamber Thickness: 10 mm
Recessed Chamber Volume = 0.190 liters
Filtration Area = 4.23 dm^2
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE + N°1 +15 mm SPACER
Chamber Thickness: 10 mm + 15 mm = 25 mm
Recessed Chamber Volume = 0.190 liters + 0.347 liters = 0.537 liters
Filtration Area = 4.23 dm^2
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE + N°2 INTERMEDIATE RECESSED PLATE
Chamber Thickness: 10 mm
Recessed Chamber Volume = 0.190 liters * 3 = 0.570 liters
Filtration Area = 4.23 dm^2 * 3 = 12.69 dm^ 2
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE + N°2 INTERMEDIATE RECESSED PLATE + N°3 +10mm SPACER
Chamber Thickness: 10 mm + 10 mm = 20 mm
Recessed Chamber Volume = (0.190 liters + 0.231 liters)* 3 = 1.263 liters
Filtration Area = 4.23 dm^2 * 3 = 12.69 dm^ 2
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE + N°2 INTERMEDIATE RECESSED PLATE + N°3 MEMBRANE PLATE
Chamber Thickness: (10 mm + 14 mm)/2 = 12 mm (before squeezing)
Chamber Volume = (0.190/2 liters + 0.413/2 liters)* 6 = 1.809 liters
Filtration Area = 4.23 dm^2 * 6 = 25.38 dm^ 2
N°1 MOBILE HEAD RECESSED PLATE + N°1 FIXED HEAD RECESSED PLATE + N°1 MEMBRANE PLATE + N°2 +15mm SPACER
Chamber Thickness: (10 mm + 14 mm)/2 + 15 = 27 mm (before squeezing)
Chamber Volume = ((0.190/2 liters + 0.413/2 liters)+0.347)* 2 = 1.297 liters
Filtration Area = 4.23 dm^2 * 2 = 8.46 dm^ 2
N°1 MOBILE HEAD RECESSED PLATE in SS + N°1 FIXED HEAD RECESSED PLATE in SS+ N°1 INTERMEDIATE RECESSED PLATE in SS + N°2 +10mm SPACER
Chamber Thickness: 10 mm
Recessed Chamber Volume = 0.231 liters * 2 = 0.462 liters
Filtration Area = 4.23 dm^2 * 2 = 8.46 dm^ 2
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