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Technical Details

Comparisons of P. P. Tanks V/s MS / PP + FRP

P.P. Tank M.S. / P.P. + FRP
Reliable extrusion welding process (Imported from germany) Hand laying manual process and therefore not reliable
Better longer service life Limited service life
Corrosion resistant to wide range of chemical Corrosion resistant to limited range of chemical
P.P. is easily can be identifide Resin grade and quality brand is not easily identifiable
Liquid do not get absorbed by P.P. Liquid get absorbed in to resin
There is no dual lamination 33in P.P. Expansion / contraction rate between frp & ms is different and therefore looses adhesive bonding
Does not get damage while loading Gets damage during loading the material
Economical Costly in long run
No maintenance Need recoating
No need of surface preparation Need sand blasting to ms prior to coating
No contamination in chemical solution during operation Iron get contaminated with chemical solution during operation
Heat loss is les compared to ms+frp (Hence save energy) Heat loss is more compared to pp tank

Comparisons of Rubber Lining Against P.P Tank

Rubber Lining Thickness range is 4 MM to 8 MM Polypropylene is not lining and therefore Polypropylene thickness range is 10 mm to 40 mm
Lining is done manually and therefore it has human error. Welding is automatic and there fore it is reliable.
Life 5 to 7 years. Life 15 to 20 years
Ageing of rubber lining happens resulting in to cracking, rigidity of rubber, britilenes which gives failure. Polyproptlene have no ageing effect.
During leakage of lining iron get dissolved and liquid get contamination, m.s tank get corroded.  Polypropylene tank does not have iron tanl. leakage can be seen no iron contamination, no corrosion.
Locationg joint failure in rubber lining is difficult. Locating leakage is very eazy.
Ms rubber lined tank is heavy in weight. Polypropylene tank are lighter in weight and they are  mobile.
Rubber is lined and they are lined in ms tank. Polypropylene is not lined in tank. Polypropylene itself is tank in mild steel skeleton frame.
Rubber has porosity. Polypropylene is solid and non porous material.
Rubber is soft material. Polypropylene is hard and rigid material.
Easily get damaged. Very difficult to get damaged.
Virginity of rubber is questionable. Polypropylene can be easily identified and tested for virginity.
Surface preparation and clean Surface is crucial for adhesion. Polypropylene is not being adhered to m.s tank
Joint blistering is common problem. There is not overlap joint. no blister.
Require full support of mild steel. Polypropylene require only skeleton frame.
Disbonding and airpocket is a regular problem.. There is no bonding, no air pocket in Polypropylene welding.
Rubber is bonded by adhesive. Polypropylene is not bonded by adhesive. tank is made out of p.p.it self
Sand blasting can not be compromised. Sand blasting not required.
Heat loss mised Heat loss is very less.
It require regular maintenance It is maintenance free.

Comparisons of P.P. Tank & A P Brick Lining Tank

P. P. tank A.P. BRICK LINI
PP is solid Bricks are porous
P.P. does not leave loose particle Brick always leaves loose particle
Welding joint by p.p only ( same ) Joint material is not known
Welding is done by hot gas extrusion process Joint is manualy done and therefore not reliable
Testing / inspection is possible Testing is difficult ( only by level )
Leakage is not possible Floor & walls gest wet & socked with acid & chemicals
Leakage can be seen Due to leakage finding leakage locations difficult
 Welding is done once-no service is required Regularly rejointing to be done service is required
P.P. does not get socked withliquid Bricks consume liquid by socking
P.P. is clean & neat Bricks are messy
P.P. joints are homogenously welded Joints get damaged gue expansion during heating
P.P. tanks can be moved relocated Brick tanks can not be moved & relocated