PRODUCT DESCRIPTION

The propeller shaft seal MTM901 was created to attack the market of medium/large boats and represents the product with the best value for money available on the world market. Thanks to its design, it is the most compact propeller shaft seal in the world. The stationary flange, provided for those who use flanged stern tube, is by standard in 316 Stainless Steel and can accommodate up to 6 radial holes (optional) in which it is possible to connect: an additional flushing, a temperature sensor, a vibration sensor (triaxial), a pressure sensor or a dedicated vent line. The size of the flange, the number, the center distance and the size of the anchor pins can be customized according to need. The stationary ring can be supplied in graphite resin (G) or in antimony graphite (G1) and is provided monolithic or inserted in a 316 stainless steel case. The rotating ring is fixed to the propulsion shaft with a series of grains (up to diameter 100) or with a clamp (over diameter 100) and is available in 316 stainless steel, Duplex or Super Duplex. Thanks to its integrated preload system, the installation is extremely simple and does not require any particular specialization. The MTM901 selected with the dynamic inflatable barrier Watershield, it guarantees the maximum safety onboard. Suitable for all kind of vessels.

Operating limits:

D= 50 – 185mm
P1= 2 bar
T= -30 a + 90°C
V= 20 m/s.
Axial movement: up to +/- 10.0 mm
Radial movement: up to +/- 5.0 mm
Angular movement: up to 2°

Elastomers material:

Epdm (E)
Nbr (N)

Flange material:

Aluminum (AL)
Stainless steel 316 (J1)
Duplex (D)
Super Duplex (D1)

Faces materials:

Resin carbon graphite (G)
Antimony carbon graphite (G1)
Resin carbon graphite insert (G2)
Antimony carbon graphite insert (G3)
Stainless steel 316 (J1)
Duplex (D)
Super Duplex (D1)

Technical Drawing

Preload screw

Anti-rotation screw

Components

1. STATIONARY FLANGE
2. STATIONARY SEAL FACE
3. ROTARY SEAL FACE
4. GRUB SCREW
5. O-RING
6. SPRING
7. O-RING
8. WATERSHIELD CASE
9. O-RING

10. DYNAMIC INFLATABLE RING
11. O-RING
12. COMPRESSION RING
13. AIR INLET PIPE
14. NUT
15. PRELOAD SCREW
16. SET SCREW
17. SCREW
18. CENTERING RING

ONLINE CONFIGURATOR

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