Rounded U-Spring Style PTFE Seals

Radial Seals


TYPE M20

TYPE M21

Radial seal for dynamic applications. For rod and piston seals with low to medium pressure and/or speed. This spring has a low load and high deflection which provides low friction sealing and compensates for minor eccentricity or misalignment.

TYPE M20: Standard profile.
TYPE M21: As M20 but with extended heel for high pressure.


TYPE M22

TYPE M23

As Type M20 but for reciprocating motion.

TYPE M22: Standard profile.
TYPE M23: As M22 but with extended heel for high pressure.


TYPE M24

TYPE M25

As Type M20 but for reciprocating motion only. Scraper on outside diameter.

TYPE M24: Standard profile.
TYPE M25: As M24 but with extended heel for high pressure.

Axial Seals


TYPE M28

TYPE M29

TYPE M28: Axial seal for static or dynamic applications as in type M20. Inside face seal.
TYPE M29: Axial seal for static or dynamic applications as in type M20, outside face seal.

Radial Seal Hardware Design

Cross Section H T1

L

+0.3/-0

L1

+0.3/-0

L2

+0.3-0

 K

E

NOM
1 1.42/1.47 0.05 2.4 3.8 5.3 3.5 0.1
2 2.26/2.31 0.05 3.6 4.6 6.2 4.5 0.13
3 3.07/3.12 0.05 4.8 6.0 7.7 6.0 0.15
4 4.72/4.78 0.06 7.1 8.5 10.8 7.5 0.18
5 6.05/6.12 0.07 9.5 12.1 14.7 8.5 0.2
6 9.48/9.53 0.08 13.5 15.8 18.0 10.0 0.24

Axial Seal Hardware Design

Cross Section H T2 L3 Min
1 1.42/1.47 0.13 2.4
2 2.26/2.31 0.13 3.6
3 3.07/3.12 0.15 4.8
4 4.72/4.78 0.15 7.7
5 6.05/6.12 0.20 9.5
6 9.48/9.53 0.25 13.5

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Moontown Ltd | Manufacturers of Spring Energised PTFE and Metal Seals