QUALITY O-RINGS FOR OLEODINAMICS AND PNEUMATICS

O-RINGS CAREFULLY PRODUCED AND  TESTED  TO ENSURE LONG-LIFE

PRODUCTS OF HIGH AND CONSTANT QUALITY  FOR  GREAT ELASTIC RESPONSE AND MECHANICAL RESISTANCE.

ELASTOMERS

Elastomer base
ISO 1629
Hardness
Sh.A
Operational Temperature
°C
Compound code
Applications
Butadiene-Nitrile  NBR
50
60
70
75
80
90
-20 +110
-20 +110
-20 +110
-20 +110
-20 +110
-10 +110
N50-N050
N60-N051
N70-N003
N75-N011
N80-N046
N90-N047
 Hydraulic oil, water up to 90°C, air up to 100°C, non-aromatic hydrocarbons, glycol and water/glycol mixtures.
70
75
-20 +110
N70-N049
N75-N028
 As above along with a very low Compression Set.
For non dynamic use only
70
60
-30 +100
-40 +110
N70-N041
N60-N045
 Ample temperature resistance range and very low Compression Set.
Hdrogenated Butadiene-Nitrile HNBR
70
-25 +150
H70-N040
 An even greater chemical resistance range in comparison to the normal NBR
Polyurethane
 AU
95
-40 +100
P95-N027
 Wear and hydraulic oil resistant, suitable for very high pressures.
Fluoroelastomer
FPM
70
75
90
-17 +230
V70-N006
V75-N037
V90-N010
 High temperatures, aggressive chemicals, hydrocarbons, petrol, phosphoric esters, chlorinated hydrocarbons, high vacuum.
75
-17 +230
V75-N068
 As above along with an improved resistance to aliphatic and aromatic hydrocarbons and ketones.
Perfluorated-elastomer
 FFKM
75
-10 +260
VF75-N000
 Resistant to most chemical agents and to vapour.
Propylene-Ethylene  EPDM
70
80
-50 +150
E70-N052
E80-N053
 Brake fluid, Phosphoric esters, diluted alkali, ketones, alcohols, water and vapour up to 150°C.
Chloroprene
 CR
70
-50 +150
C70-N054
 Refrigerant gases, oils with a high aniline point, optimum resistance to atmospherical agents.
Silicone
MVQ
50
60
70
80
-50 +230
S50-R055
S60-R056
S70-R030
S80-R000
 Extreme temperatures, air and gas, oils with a high aniline point.
Fluoro-Silicone
 MFQ
70
-50 +230
L70-A048
 Ample resistance to temperature, hydraulic oil, skydrol, hydrocarbons and gas.

 

COMPRESSION SET

The "Compression Set" is the residual permanent deformation in a sample of elastomer deformed by compression in certain deformation conditions, time, temperature and environment. The. C.S. expresses the percentages of the initial deformation, and inversely it is in proportion to the seal's capacity to maintain the pre-load installation over a long period of time. Therefore the C.S. must be as low as possible if the O-Ring is to ensure a tight seal for a long period, even when there are temperature and pressure variations. It is important to remember that, due to the transformation tchniques, the C.S. improves as the O-Ring section increases. We provide supplies along with the C.S: certificate from our laboratory upon request.
 
 
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