EC

EC
EC_image_3d_v1
EC_image_3d_v2

Description

The EC profile is a cover seal composed of a single external metal cage with a rubber coating.

Advantages

Very good static sealing
Very good thermal expansion compensation
Greater roughness is allowed in the housing
Reduced risk of corrosion

Technical data

Temperature

-40°C/+200°C

Pressure

0.50 MPa

Applications

Transmissions
Gear motor
Pumps
Motors

Materials

Rubber

NBR 70 - 75 Shore A
FKM 70 - 75 Shore A

Metal cage

Steel - AISI 1010

Dimensions
Materials
Housing design

Dimensions

Installation drawingLogement Gorge Bouchon obturateur - Housing Groove End cover - EC

Materials

Metal cage

The table below shows the materials that we can offer for metal cages.

Application Material Standard Characteristics
Metal cage Non-alloy standard steel AISI 1010
(DIN 1624)
Cold rolled steel
Metal cage Nickel chrome steel AISI 304
(DIN 1.4301 - V2A)
Standard stainless steel
Metal cage Chrome-nickel-molybdenum steel AISI 316
(DIN 1.4401 - V4A)
Stainless steel highly resistant to corrosion

Rubbers

ACM (Polyacrylate)

Polymers containing ethyl acrylate (or butyl acrylate) have a small amount of monomer, which is necessary for cross-linking; ACM is a material with better heat resistance than NBR. It is often used for automatic gearboxes.

Chemical resistance Mineral oils (motor oils, gear box oils, ATF oils)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids (Dot 3 & 4)
Aromatic and chlorinated hydrocarbons
Water and steam
Acids, alkalis and amines
Temperature range -25°C to + 150°C (short-term peak at +160°C)
-35°C / +150°C with particular ACMs
AEM (ethylene acrylate rubber)

As a methyl acrylate and ethylene copolymer, AEM is considered to be more resistant to heat than ACM. Its characteristics make it an intermediary between ACM and FKM.

Chemical resistance Cooling fluids
Aggressive mineral oils
Atmospheric agents
Water
Compatibility issue Aromatic solvents
Strong acids
Brake fluids
Gearbox oils
ATF oils
Temperature range - 40°C to + 150°C
CR (Polychloroprene)

This CR-based rubber is used in the refrigeration industry and for ventilation systems. This chloroprene was the first synthetic rubber to be developed and marketed.

Chemical resistance Paraffinic mineral oils
Silicone oils and greases
Water and water-based solvents for use at low temperatures
Refrigerant fluids
Ammoniac
Carbon dioxide
Atmospheric and ozone agents
Limited chemical resistance Naphthenic mineral oils
Aliphatic hydrocarbons (propane, butane, petroleum)
Glycol-based brake fluids
Compatibility issue Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Temperature range -40°C / +100°C (short-term peak at +120°C)
EPDM (Ethylene Propylene Diene Monomer rubber)

As an Ethylene Propylene Diene Monomer copolymer, EPDM is commonly used for hot water taps, cooling systems, brake systems, dishwashers and washing machines.

Chemical resistance Hot water and steam up to +150°C
Glycol-based brake fluids (Dot 3 & 4) and silicone-based brake fluids (Dot 5)
Organic and inorganic acids
Cleaning agents, sodium and potassium alkalis
Hydraulic fluids (HFD-R)
Silicone oils and greases
Polar solvents (alcohols, ketones and esters)
Atmospheric and ozone agents
Compatibility issue Mineral oils and greases
Hydrocarbons
Low impermeability to gas
Temperature range -45°C / +150°C (short-term peak at +175°C)
FFKM (perfluorinated rubber)

FFKM has the best characteristics for resistance to high temperatures, with an excellent chemical inertia. This FKM-based rubber is very often used for high-temperature hydraulic and pneumatic systems, industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Aliphatic and aromatic hydrocarbons
Polar solvents (ketones, esters and ethers)
Organic and inorganic acids
Water and steam
High-vacuum system
Compatibility issue Coolants (R11, R12, R13, R113, R114, etc.)
PFPE
Temperature range -15°C/+320°C
FKM (fluorinated rubber)

Depending on their structure and fluorine content, the chemical resistance and resistance to the cold in fluororubbers can vary. This FKM-based rubber is very often used for high-temperature hydraulics and pneumatics, for industrial valves, injection/fuel systems, motor seals and high-vacuum systems.

Chemical resistance Mineral oils and greases, ASTM n°1, IRM 902 and IRM 903 oils.
Fire-resistant liquids (HFD)
Silicone oils and greases
Mineral and vegetable oils and greases
Aliphatic hydrocarbons (propane, butane, petroleum)
Aromatic hydrocarbons (benzene, toluene)
Chlorinated hydrocarbons (trichlorethylene)
Fuel (including high alcohol content)
Atmospheric and ozone agents
Compatibility issue Glycol-based brake fluids
Ammonia gas
Organic acids with a low molecular weight (formic and acetic acids)
Temperature range -20°C / +200°C (short-term peak at +230°C)
-40°C / +200°C with particular FKMs
FVMQ (fluorosilicone rubber)

The FVMQ has mechanical and physical properties that are very similar to those of the VMQ. However, the FVMQ offers better resistance to fuels and mineral oils. However, resistance to hot air is not as good as that of the VMQ.

Chemical resistance Aromatic mineral oils (IRM 903 oil)
Fuels
Aromatic hydrocarbons with low molecular weights
(benzene, toluene)
Temperature range -70°C/+175°C
HNBR (Hydrogenated Nitrile Butadiene Rubber)

This HNBR-based rubber is obtained through selective hydrogenation of the NBR's butadiene groups. It is commonly used for power-assisted steering and for air conditioning.

Chemical resistance Aliphatic hydrocarbons
Mineral and vegetable oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, saline solutions and bases for operation at an average temperature
Water and steam up to +150°C
Atmospheric and ozone agents
Compatibility issue Chlorinated hydrocarbons
Polar solvents (ketones, esters and ethers)
Strong acids
Temperature range -30°C / +150°C (short-term peak at +160°C)
-40°C / +150°C with particular HNBRs
NBR (Nitrile Butadiene Rubber)

Nitrile rubber (NBR) is the general term for acrylonitrile-butadiene copolymer. The ACN content can vary between 18% and 50%. While the acrylonitrile content is important, the resistance to oil and fuel is more so. Conversely, the elasticity and compression set are not as good. The NBR has good mechanical properties and good wear resistance. However, its resistance to atmospheric agents and the ozone is relatively low.

Chemical resistance Aliphatic hydrocarbons (propane, butane, petroleum, diesel fuel)
Mineral oils and greases
Fire-resistant fluids (HFA, HFB and HFC)
Diluted acids, low-temperature alkaline and saline solutions
Water (up to +100°C max)
Compatibility issue Fuels with high aromatic content
Aromatic hydrocarbons (benzene)
Chlorinated hydrocarbons (trichlorethylene)
Polar solvents (ketone, acetone, acetic acid, ethylene-ester)
Strong acids
Glycol-based brake fluids
Atmospheric and ozone agents
Temperature range -30°C / +100°C (short-term peak at +120°C)
-40°C / +100°C with particular NBRs
VMQ (silicone rubber: methyl vinyl polysiloxane)

This FVMQ-based rubber is very often used in fuel systems.

Chemical resistance Animal and vegetable oils and greases
Water for operation at an average temperature
Diluted saline solutions
Atmospheric and ozone agents
Compatibility issue Superheated steam up to +120°C
Chlorinated hydrocarbons with a low molecular weight (trichlorethylene)
Aromatic hydrocarbons (benzene, toluene)
Temperature range -60°C / +200°C (short-term peak at +230°C)

The table below gives an overview of the physical, chemical and mechanical characteristics for each of the materials.

Characteristics/Materials ACM AEM CR EPDM FFKM FKM FVMQ HNBR NBR VMQ
Abrasion resistant 2 3 2 2 4 2 4 2 2 4
Resistance to acids 4 3 2 2 1 1 3 1 3 3
Chemical resistance 4 2 2 1 1 1 1 2 2 2
Resistance to cold 4 2 2 2 3 4 2 2 2 2
Dynamic properties 3 3 3 2 3 2 4 1 2 4
Electrical properties 3 3 3 2 1 4 1 3 3 1
Flame resistant 4 4 2 4 1 1 2 4 4 3
Heat resistant 1 1 2 2 1 1 1 1 2 1
Sealing water 1 1 2 2 2 2 4 2 2 4
Oil resistant 1 3 2 4 1 1 2 1 1 2
Ozone resistant 1 1 2 1 1 1 1 2 4 1
Tearing resistant 2 3 3 1 4 3 4 2 2 4
Traction resistant 3 2 2 1 2 1 3 1 2 4
Water/vapour resistant 4 4 3 1 2 3 3 1 2 3
Resistance to atmospheric agents 1 1 1 1 1 1 1 2 3 1

1. Excellent properties 2. Good properties 3. Average properties 4. Poor properties

Chemical compatibility

A "Chemical compatibility guide" catalogue can be downloaded from the Documentation section. You can also use our online "Chemical compatibility" tool free of charge.

These two tools give you the option of measuring the behaviour of our materials that come into contact with the majority of existing fluids. The data displayed is the result of rigorous testing of the ambient temperature and in consultation with previous publications. Test results are not fully representative due to the specific features of your application. The tests performed actually do not consider additives and impurities that may exist under the actual conditions of use, nor the potential elevation of temperatures. Other parameters can also alter the behaviour of our materials, such as the hardness, persistence, abrasion, etc. We therefore recommend performing your own tests to verify the compatibility of our materials according to your specific application. Our technical team can provide you with any additional information.

Housing design

Housing Groove Cover seal - EC

Chamfers

Groove width
L1
Chamfer
C
4.00 - 5.00 1.00
6.00 - 7.00 1.30
8.00 - 9.50 1.50
10.00 - 11.00 1.80
12.00 - 15.00 2.00
143 dimensions found
800.SC01005
Standard request
10,00 5,00
800.SC01205
Standard request
12,00 5,00
800.SC01304
Standard request
13,00 4,00
800.SC01404
Standard request
14,00 4,00
800.SC01604
Standard request
16,00 4,00
800.SC01704
Standard request
17,00 4,00
800.SC01804
Standard request
18,00 4,00
800.SC01907
Standard request
19,00 7,00
800.SC02004
Standard request
20,00 4,00
800.SC02007
Standard request
20,00 7,00
800.SC02204
Standard request
22,00 4,00
800.SC02205
Standard request
22,00 5,00
800.SC02207
Standard request
22,00 7,00
800.SC02407
Standard request
24,00 7,00
800.SC02505
Standard request
25,00 5,00
800.SC02506
Standard request
25,00 6,00
800.SC02507
Standard request
25,00 7,00
800.SC02604
Standard request
26,00 4,00
800.SC02804
Standard request
28,00 4,00
800.SC02805
Standard request
28,00 5,00
800.SC02807
Standard request
28,00 7,00
800.SC02907
Standard request
29,00 7,00
800.SC03004
Standard request
30,00 4,00
800.SC03005
Standard request
30,00 5,00
800.SC03006
Standard request
30,00 6,00
800.SC03008
Standard request
30,00 8,00
800.SC03205
Standard request
32,00 5,00
800.SC03207
Standard request
32,00 7,00
800.SC03208
Standard request
32,00 8,00
800.SC03408
Standard request
34,00 8,00
800.SC03505
Standard request
35,00 5,00
800.SC03507
Standard request
35,00 7,00
800.SC03508
Standard request
35,00 8,00
800.SC03606
Standard request
36,00 6,00
800.SC03705
Standard request
37,00 5,00
800.SC03707
Standard request
37,00 7,00
800.SC03710
Standard request
37,00 10,00
800.SC03807
Standard request
38,00 7,00
800.SC03810
Standard request
38,00 10,00
800.SC04005
Standard request
40,00 5,00
800.SC04007
Standard request
40,00 7,00
800.SC04008
Standard request
40,00 8,00
800.SC04207
Standard request
42,00 7,00
800.SC04208
Standard request
42,00 8,00
800.SC04407
Standard request
44,00 7,00
800.SC04505
Standard request
45,00 5,00
800.SC04704
Standard request
47,00 4,00
800.SC04705
Standard request
47,00 5,00
800.SC04707
Standard request
47,00 7,00
800.SC04708
Standard request
47,00 8,00
800.SC04710
Standard request
47,00 10,00
800.SC05007
Standard request
50,00 7,00
800.SC05009
Standard request
50,00 9,00
800.SC05010
Standard request
50,00 10,00
800.SC05016
Standard request
50,00 16,00
800.SC05206
Standard request
52,00 6,00
800.SC05207
Standard request
52,00 7,00
800.SC05208
Standard request
52,00 8,00
800.SC05210
Standard request
52,00 10,00
800.SC05504
Standard request
55,00 4,00
800.SC05506
Standard request
55,00 6,00
800.SC05507
Standard request
55,00 7,00
800.SC05510
Standard request
55,00 10,00
800.SC05610
Standard request
56,00 10,00
800.SC05708
Standard request
57,00 8,00
800.SC05806
Standard request
58,00 6,00
800.SC05807
Standard request
58,00 7,00
800.SC06007
Standard request
60,00 7,00
800.SC06008
Standard request
60,00 8,00
800.SC06016
Standard request
60,00 16,00
800.SC06207
Standard request
62,00 7,00
800.SC06208
Standard request
62,00 8,00
800.SC06210
Standard request
62,00 10,00
800.SC06212
Standard request
62,00 12,00
800.SC06508
Standard request
65,00 8,00
800.SC06510
Standard request
65,00 10,00
800.SC06808
Standard request
68,00 8,00
800.SC06910
Standard request
69,00 10,00
800.SC07010
Standard request
70,00 10,00
800.SC07016
Standard request
70,00 16,00
800.SC07207
Standard request
72,00 7,00
800.SC07209
Standard request
72,00 9,00
800.SC07210
Standard request
72,00 10,00
800.SC07507
Standard request
75,00 7,00
800.SC07510
Standard request
75,00 10,00
800.SC07512
Standard request
75,00 12,00
800.SC08008
Standard request
80,00 8,00
800.SC08010
Standard request
80,00 10,00
800.SC08012
Standard request
80,00 12,00
800.SC08016
Standard request
80,00 16,00
800.SC08112
Standard request
81,00 12,00
800.SC08307
Standard request
83,00 7,00
800.SC08510
Standard request
85,00 10,00
800.SC08512
Standard request
85,00 12,00
800.SC08520
Standard request
85,00 20,00
800.SC08712
Standard request
87,00 12,00
800.SC09007
Standard request
90,00 7,00
800.SC09008
Standard request
90,00 8,00
800.SC09010
Standard request
90,00 10,00
800.SC09012
Standard request
90,00 12,00
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