COMPONENTS & SOLUTIONS FOR FLUID HANDLING

DESCRIPTION

The MTM400 is definitely one of the most innovative products that we have developed. Compared to all the existing mechanical seals it is the first in the world to be equipped with a double set of springs. This allows you to compensate for angular and radial misalignment.
Moreover, springs combined with a double system of O-rings, create what has been called from us DEDaS® (Double Elastic Damping System) that is an elastic damping system thanks to which the MTM400 is able to resist to 60 g of shock and to 60 mm/s (RMS) of vibration. In the rotating part, there is another innovation recognized at the international level: the pump. This tool, that has never been included in the propeller shaft seals until now, ensures that the cooling fluid (usually water) is distributed to a greater extent on the sliding faces, increasing the heat dissipation and thus reducing fuel consumption. This allows to the MTM400 series to achieve performance of more than 25,000 hours of operation. The design as well is of great importance. Its compact size allows it to be one of the axially smaller solutions in the world and thanks to the “repair kit” in two halves you can do maintenance on the mechanical seal directly without having to decouple the transmission axis from the joint. The MTM400 together with the hydraulic system barrier (WaterShield) allows to perform maintenance operations with the boat in the water. Available from the diameter 50 to 500 mm, it is certified by RINA and thanks to all the innovations included it is provided with an international patent. It can be made in different material configurations.

Operating limits:

D= 2” to 19.7”
P1= up to 36.3 PSI
T= - 40 °F to + 750 °F
V= up to 99 ft / s
Axial movement + / - 2.0 mm
Radial Movement + / - 3.0 mm
Angolar Movement up to 2°

Elastomers:

Viton
Ethylene propylene
Nitrile
Chloroprene

Face materials:

Silicon carbide
Tungsten carbide
Carbon graphite antimony
Carbon graphite resin
SS316
SAF
Hastelloy
Inconel

Technical Drawing

Components

1. Stationary holder
2. Rotary holder
3. Centering sleeve
4. Stationary ring
5. Rotary ring
6. O-ring flange
7. O-ring
8. O-ring
9. O-ring
10. O-ring
11. O-ring
12. O-ring
13. O-ring
14. Watershield holder
16. Extraction hole

17. Pneumatic sealing ring
18. Watershield cover
21. Vent hole
22. Screw
23. Screw
27. Compression ring
28. O-ring
29. O-ring
30. Liquid seal adapter
32. O-ring
33. Grub screw
34. Cap
35. Cap
37. Screw

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