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Eurosealings NV
Molenberglei 17
2627 Schelle

tel: 03 844 11 16
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Groove dimensions PTFE seals type 414 und 143

Radial Seals
Axial Seals
Seal Selection and Operation Range
Materials
Hardware and Groove Dimensions
Groove dimensions PTFE seals type 414 und 143
Surface Finish
Sterilisable Seals and Integral Piston Seals
Seal Numbering System and Part Number Examples
Information for Installation

Radial and Axial Dimension

The seals type 414 and 143 respectively are designed with flange for the axial fixation and/or securing of rotation with rotary seals. Other dimensions are possible as well.

Groove dimensions seals with flange

Profil T D -0.25 C +0.15 E max F +0.1 G +0.25 H -0.1
3/32" 2.25 3.4 5.2 0.1 0.25 3.6 0.65
1/8" 3.1 5.0 6.9 0.1 0.35 4.7 0.75
3/16" 4.75 7.1 10.1 0.15 0.40 7.1 1.00
1/4" 6.1 9.9 13.2 0.2 0.50 9.5 1.25
3/8" 9.5+/-0.05 15.0 20.0 0.3 0.80 15.0 2.50
1/2" 12.5+/-0.1 20.0 26.0 0.4 1.00 18.0 3.00

Dimension B will be specified by the customer

Quality of finish for rotary seals

The sealing surface should possess a material portion Mr (in former times bearing portion tp) of approx. 50 to 70% measured in a cutting depth c = 0.25 x Rz

Application Media to be sealed
  Gas- and
cryogentechnology		 Liquids
Dynamic 0.1 ... 0.8 µm Ra 0.2 ... 0.4 µm Ra
Static 0.3 ... 0.8 µm Ra 0.4 ... 1.6 µm
Surfaces and flanks without sealing function
approx. 0.4 ... 6.3 µm Ra (depending on dimension)

Hardness of finish for rotary seals

With rotary sealing cases we recommend a hardness of finish of at least 55 HRC.
The depth of hardness should amount at least to 0.4 - 0.4 mm.

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