MTM902

Limiti d'impiego

Product description

MTM902 Propeller Shaft Seal – Unrivaled Performance for Medium/Large Boats

The MTM902 propeller shaft seal is built to conquer the market for medium to large boats, offering unparalleled value for money in the nautical sector. With its innovative design, MTM902 stands as the most compact propeller shaft seal featuring an integrated safety barrier, setting new standards for efficiency and safety.

Another key feature of MTM902 is the stationary flange, crafted from premium 316 stainless steel, comes standard and can accommodate up to 6 radial holes (optional) for additional functionalities such as flushing, temperature sensing, vibration monitoring (triaxial), pressure sensing, or vent line integration. Flange specifications including size, number, center distance, and set screw size are customizable to meet specific requirements. Also, the stationary ring of Microtem’s MTM902 is available in graphite resin (G) or antimony graphite (G1), provided monolithic or inserted in a 316 stainless steel case, ensuring compatibility with diverse operating conditions.

The MTM902, equipped with the integrated pneumatic barrier system Watershield®, is the preferred choice of major shipyards in the Yachts and Super Yachts market worldwide; this system enhances safety and reliability, especially in always-demanding marine environments. The rotating ring of MTM902 propeller shaft seal is connected to the propulsion shaft with a series of grub screws (up to diameter 100) or with a clamp (over diameter 100) and is available in 316, Duplex or Super Duplex stainless steel. Thanks to the integrated pneumatic barrier system Watershield®, MTM902 is the most chosen product by the main world shipyards in the yachts and superyachts market. The integrated preload system of MTM902 propeller shaft seal guarantees an extremely simple installation that does not require any particular specialization.

Operative limits

d = from 70 mm (2,7″) up to 300 mm (11,8″) *
p1 = 2 bar (29 psi)
T = from -30°C(-22°F) up to +150°C (302°F)
vg = 10 m/s (32 m/s)
Axial Movement : up to -7/+12 mm
Radial movement : up to +/- 5 mm
Angular movement : up to 2°
* Available in inches too

Standard face materials

Rotary face:
AISI316 (J1)
Duplex (D)
Super Duplex (D1)

Stationary face:
resin/antimony carbon (G/G1/G2/G3)
Silicon carbide (S1)

Elastomers

NBR / Nitrile (N)
EPDM / Ethilene propylene (E)

Applications

Yachts
Medium boats
Work boats
Patrol boats
Tugs
Passenger transport
Water-lubricated lines
Oil lubricated lines
Water jets

MTM902

Part list

1. Flange
2. Rotary face
3. Holder stationary insert
4. Inflatable elastomer ring
5. Valve
6. O-ring
7. Screw
8. O-ring
9. O-ring
10. Spring
11. Nut
12. Screw
13. Stationary seal face
14. Clamp

Product description

MTM902 Propeller Shaft Seal – Unrivaled Performance for Medium/Large Boats

The MTM902 propeller shaft seal is built to conquer the market for medium to large boats, offering unparalleled value for money in the nautical sector. With its innovative design, MTM902 stands as the most compact propeller shaft seal featuring an integrated safety barrier, setting new standards for efficiency and safety.

Another key feature of MTM902 is the stationary flange, crafted from premium 316 stainless steel, comes standard and can accommodate up to 6 radial holes (optional) for additional functionalities such as flushing, temperature sensing, vibration monitoring (triaxial), pressure sensing, or vent line integration. Flange specifications including size, number, center distance, and set screw size are customizable to meet specific requirements. Also, the stationary ring of Microtem’s MTM902 is available in graphite resin (G) or antimony graphite (G1), provided monolithic or inserted in a 316 stainless steel case, ensuring compatibility with diverse operating conditions.

The MTM902, equipped with the integrated pneumatic barrier system Watershield®, is the preferred choice of major shipyards in the Yachts and Super Yachts market worldwide; this system enhances safety and reliability, especially in always-demanding marine environments. The rotating ring of MTM902 propeller shaft seal is connected to the propulsion shaft with a series of grub screws (up to diameter 100) or with a clamp (over diameter 100) and is available in 316, Duplex or Super Duplex stainless steel. Thanks to the integrated pneumatic barrier system Watershield®, MTM902 is the most chosen product by the main world shipyards in the yachts and superyachts market. The integrated preload system of MTM902 propeller shaft seal guarantees an extremely simple installation that does not require any particular specialization.

Part list

1. Flange
2. Rotary face
3. Holder stationary insert
4. Inflatable elastomer ring
5. Valve
6. O-ring
7. Screw
8. O-ring
9. O-ring
10. Spring
11. Nut
12. Screw
13. Stationary seal face
14. Clamp

Standard face materials

Rotary face:
AISI316 (J1)
Duplex (D)
Super Duplex (D1)

Stationary face:
resin/antimony carbon (G/G1/G2/G3)
Silicon carbide (S1)

Elastomers

NBR / Nitrile (N)
EPDM / Ethilene propylene (E)

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