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 Special Designs

Membrane Chamber Plates-Sala
MPL Special
Designs »

High Performance
Membrane Chamber
Plate »

Horizontal-MPL »

Membrane Chamber
Plates for the
Sugar Industry »
Cake Drying »

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Material


JVK is manufacturing moulded parts up to a weight of around 1 to made out of
thermoplastic material especially Polypropylene (PP), Polyvinylidenfluoride (PVDF),
Polyethylene (PE) and other materials e.g. aluminium.


Typical properties of
1. general materials
2. plates out of thermoplastic materials
3. membranes out of vulcanized and thermoplastic elastomeres


 1. Properties of general materials
  name resistance not resistance
temperature
[°C]
period short
PEHM polyethylene acids, leaches,
aliphatic
hydrocarbon
extremely
oxidising medium;
aromatic and
chlorinated
hydrocarbon
-10 to +70 80
PEHM -V
polyethylene
cross-linked
acids, leaches,
aliphatic
hydrocarbon
extremely
oxidising medium;
aromatic and
chlorinated
hydrocarbon
-20 to +80 90
PPH

polypropylene
homopolymere
acids, leaches,
aliphatic
hydrocarbon
extremely
oxidising medium;
aromatic and
chlorinated
hydrocarbon
+10 to +90 90
PPC

polypropylene
copolymere
acids, leaches,
aliphatic
hydrocarbon
extremely
oxidising medium;
aromatic and
chlorinated
hydrocarbon
-10 to +70 80
PP-
GT

polypropylene
for increased
temperature
acids, leaches,
aliphatic
hydrocarbon
extremely
oxidising medium;
aromatic and
chlorinated
hydrocarbon
+20 to +110 120
PVDF

polyvinyliden-
flourid
acids, aromatic
hydrocarbon
concentrated
leaches,
concentrated
oxidising acids
-10 to +140 150
SS

stainless steel oils, grease,
aliphatic and
aromatic
hydrocarbons,
diluted leaches
and acids
concentrated
leaches and
acids
-20 to +300 300
St-B

coated steel Depending on
coating
depending on
coating
up to 100 up to 110
GGG

ductile iron oils, grease,
aliphatic and
aromatic
hydrocarbons
acids, leaches -20 to +300 300
GGG
-B

coated
ductile iron
Depending on
coating
depending on
coating
up to 100 up to 110
AL

aluminium oils, grease,
aliphatic and
aromatic
hydrocarbons
acids, leaches
oxidising
agents
-20 to +200 200

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 2. Properties of plates: thermoplastic materials
Property
Plates
Test 
DIN/ISO

Unit PEHM PPH PPC PVDF
Density at 23° C

1183 g/cm3 0,92-0,95 0,90-0,92 0,90-0,92 1,76-1,78
Melt flow index 
MFI 230°C/
2,16 kg
1133 g/10 min 0,10-0,15 0,25-0,35 0,20-0,35 < 3,0
Tensile modulus

527 N/mm2 1200-
1350
1100-
1500

950-
1300

1800-
2000
Tensile strength
at yield

527 N/mm2 27-28 28-33 22-28 50-52
Elongation at yield

527 % 9-11 10-14 12-16 9-11
Impact strength
Charpy at 23°C

179 kJ/m2 10-12 10-50 40-70 8-14
Thermal conductivity

52612
Wm-1K-1 0,38-
0,41
0,20-
0,22
0,20-
0,22
0,15-
0,17
Thermal expansion

53752
10-4K-1 1,3-2,0 1,2-1,4 1,2-1,4 1,0-1,2
Temperature
range

 
°C 10/
+70
+15/
+110
-10/
+70
-20/
+130


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 3. Properties of membranes: vulcanized and thermoplastic elastomeres
Property
Membranes
Test
DIN/ISO

Unit EPDM NBR TPV FKM
Hardness

53505 ShA 65-75 70-80 70-90 70-75
Density at 23° C

1183 g/cm3 1,1-1,2 1,2-1,3 0,93-
0,97
1,8-2,0
Tensile Strength

53504 N/mm2 10-16 15-20 8,5-
15,5
12-17
Elongation at
break
53504 % 400-
600
250-
450
400-
700

150-
200
Tear Strength

34-2 N 25-30 45-60   20-25
Compression
set at 24h/ 70°C / 25%

815 % 18-30 15-30 26-50 9-11
Thermal
conductivity

52612 Wm-1K-1 0,30-0,35 0,30-0,35 0,30-0,35 0,20-0,25
Temperature
range

  °C -30/
+120

-20/
+100

-20/
+80

-20/
+ 180

Please note that these are recommended standard values only which might vary depending on the specific application. I.e. the maximum allowable filtration temperature amongst others depends on filtration pressure, chemical composition of the slurry, cycle time, choice of materials etc.
Our qualified expert team will assist you anytime in determining the right materials for your specific application.

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