Oil products resistant PES/PE conveyor belts

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Filed of use: transporting petroleum products in solid and powder state with the temeprature range between -20 grd C ...+100 grd C.

Depending on operating conditions , there are 2 types of oil resistant conveyors

type 1- resistant to oil products
type 2 - antistatic properties and resistant to oil products

Quality norm: ST 193/1997
Textile insertion: EP 80; EP 100; EP 125; EP 160; EP 200; EP 250; EP 315; EP 400
Conveyor width: Between 500 and 1600 mm, 1%
Conveyor thickness:

dimensional tolerances :
thickness between 8 to 10 mm, 1 mm.
thickness over 10 mm, 10 %.

Rubber layer thickness:

for thickness up to 4 mm, +1 mm/-0,2 mm
for thickness over 4 mm, + 1 mm/-0,5%

Conveyor length:

max 300 meters: +2%/-0,5%

Moulded edge width:

max. 15 mm

Number of EP insertions

Between 2-6 plies

Mechanical and physical characteristics of the rubber layer

Crt	Caracteristica	U.M.	Imposed value
Crt	Caracteristica	U.M.	Type 1	Type 2
1	Tensile strenght; min	daN/cm2	120	120
2	Elongation at break; min	%	300	300
3	Abrasion resistance ; max	mm3	200	200
4	Oil resistance - variation of volume by mmersion ASTM2, 70h X 20^oC - variation of volume by mmersion ASTM2, 70h X 70^oC	% %	-2...+15 -3...+25	-2...+15 -3...+25
5	Electrical resistance of the surface, max		-	3 X 10⁶
6	Resistance to accelerated aging oven (168h la 700^oC) - variation of breaking strenght ; max - variation of resistance; max - variation of elongation ; max	% %	25 -50	25 -50

Conveyor belt characteristics:

Crt	Caracteristica	U.M.	Imposed value
Crt	Caracteristica	U.M.	Type 1	Type 2
1	Class resistance [Rr]min / nr.of plies -- conveyor types with 2 plies , commonly used - conveyor types with more than 2 plies , commonly used	(daN/cm) / nr.ins	- 200/2; 250/2; 315/2; 400/2; 500/2; 630/2; 800/2 - 315/3; 400/3; 630/4; 800/4; 1000/5; 1250/5; 1600/5; 2000/5	- 200/2; 250/2; 315/2; 400/2; 500/2; 630/2; 800/2 - 315/3; 400/3; 630/4; 800/4; 1000/5; 1250/5; 1600/5; 2000/5
2	Elongation under load reference (10% from Rr), max	%	4	4
3	Adhesion between plies min	daN/cm	4	4
4	Adhesion between plies and rubber layer, min	daN/cm	3.5	3.5