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TABLE MATERIALS

Friction ring

O'Ring

Mating surface

material

Standard

code

ISO

code

Material

Colour

Characteristics

Code Type of material

Service

temperature

HG

HG

PE-UHMW

White or

off-white

Excellent wear resistance on contact with

water and air

K6

NBR 70 Shore A

-30°C/+80°C

Steel

Stainless steel

Chrome steel

Aluminium

Bronze

Cast iron

Treated surface

PU

U

Polyurethane

Blue

Strong mechanical resistance

Good resistance to wear and abrasion

High elasticity modulus

Good flexibility

Very good resistance to ozone and

oxidation

K6

NBR 70 Shore A

-30°C/+90°C

PUHT

U

High-

temperature

polyurethane

White or

off-white

K6

NBR 70 Shore A

-30°C/+100°C

Other grades of materials are available depending on your specificities.

HYDRAULIC SEALS | PISTON SEALS |

BECA 520 - 522 - 524