To resolve sealing problems, the CLUFIX® range includes a variant with an under-head seal.
Product range: flange head with under-head seal, round or hexagonal body, stainless steel or 316L stainless steel.
The application and the constraints linked to it determine the type of seal to be used. The table below enables selection of seal material.
Environmental resistance
Elastomer type
O-ring caracteristics
Colour
DIDC
hardness
Temperature (°C)
Minimum
Maximum
prolonged
Maximum
(peak)
Ethylene Propylene (EPDM) Code : EP
Very good resistance to:
- water, steam and aqueous solutions in general
- synthetic brake fluid
- atmospheric agents Low resistance to:
- mineral oils and hydrocarbons Good resistance to cold
Relatively good mechanical behaviour
Black
83
-50
140
175
Nitrile (NBR) Code : NI
Good resistance to:
- mineral oils
- household gases
- water up to 70°C
- fuels
- aliphatic solvents Low resistance to:
- atmospheric agents
- acids
- brake fluid Good mechanical behaviour
Black
79
-30
100
120
Fluorocarbon (FPM / FKM) Code : FC
Very good resistance to:
- heat
- mineral oils
- household gases
- atmospheric agents
- fuels
- aromatic and aliphatic solvents Good resistance to:
- chemicals in general
- acids Low resistance to:
- bases
- brake fluid Limited resistance to cold
Relatively good mechanical behaviour
Good impermeability
Black
78
-25
200
250
Silicon (Q) Code : SI
Very good resistance to:
- heat
- atmospheric agents
- water up to 100°C
- cold Moderate resistance to:
- mineral oils
- household gases Low resistance to fuels
High impermeability
Poor mechanical behaviour
Red
63
-60
200
225
If the constraints of the application are different, please fill-in the CLUFIX® on demand sheet.
To resolve your sealing problems, the CLUFIX® range includes a variant with a resin sealing product. Product range: flush or flange headed, round or hexagonal bodied, closed end, stainless steel or 316L stainless steel.
Resin sealing product data
Name: Precote 5 Type: Thixotropic product (= which liquefies under stress) Colour: Light blue Resistance in the following conditions:
Air - 50°C to + 180°C
Engine oil + 150°C
Gear Oil + 150°C
Glycol / Water 50/50 + 120°C
Tap water + 100°C
Brake fluid + 150°C
Petrol Ambient temperature
Diesel Ambient temperature
Resin sealing product characteristics
Resin thickness: About 0.25 mm Resin height: at least 4mm above the flush head
Crimping watertight CLUFIX® with resin sealing
1. Insertion of CLUFIX® into hexagonal hole:
The resin sealing is laminated when the CLUFIX® is introduced into the hexagonal hole in the sheet metal.
Product surplus is discharged to the front, around the flush head. Maximum crimping capacity is therefore slightly reduced by 1mm – t, where t is the amount by which the head protrudes not including the resin sealing.
2. Clufix® Crimping:
During crimping:
One part of the product is compressed under the crimping force, creating a first watertight seal.
The other part of the product is ejected, forming a sort of bulge which reinforces the seal at the final assembly stage.
Assembly after crimping watertight CLUFIX® with resin sealing
During the final assembly stage, a second sheet of metal is fixed against the first sheet of metal, where the CLUFIX® is crimped.
The flush head and the bulge are compressed between these two sheets of metal, creating a second watertight seal.
Guaranteed Seal Rating
Tests have enabled us to demonstrate a seal that is compliant with the standard CEI60529 for an IP67 rating.
Conditions for storage and for delayed use
Our CLUFIX® that are watertight through coating can be stored loose in normal storage conditions (ordinary temperatures and humidity levels).
Crimping can be carried out even after a long period of storage, of several months or years.
In the same way, after crimping, our CLUFIX® that are watertight through coating guarantee a longlasting tight seal.
Other references
Other CLUFIX® references (thread dimensions, crimping thicknesses, designs, materials, etc.) can be offered on demand.
For specific conditions of use, please don't hesitate to contact us, because we also offer other sealing products.
The sealed CLUFIX® solution has been assessed in compliance with the CEI 60529 standard, which lays down the degree of protection (IP). These IP codes correspond to seal requirement levels, which are expressed by the tests described in the table below.
Desired seal characteristics
IP number
Significance for protection of the equipment
First number : protection against penetration of solid foreign bodies
0
1
2
3
4
5
6
Unprotected
Ø = 50 mm
Ø = 12.5 mm
Ø = 2.5 mm
Ø = 1.0 mm
Dust-protected
Dust-tight
Second numeral : protection against penetration of water, with harmful effects
0
1
2
3
4
5
6
7
8
Non-protected
Vertically falling water drops
Falling water drops (15° angle)
Spraying water
Splashing water
Water jets
Powerful water jets
Temporary immersion in water
Continuous immersion in water*
* subject to an agreement to be defined with the customer ex : IPX6 / IPX7 / IP66 / IP67 (X = no requirement)
