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Wärtsila Enviroguard range

Wärtsilä's Enviroguard range is compliant for a wide range

Wärtsilä Enviroguard range (Water Lubricated)

Wärtsilä provides superior quality products that offer true value for the whole life of the vessel. Our water lubricated seals prevent expensive emergency dockings and downtime, avoiding leakages and the associated costs. Our water lubricated seals are fully compliant with environmental legislations, including the Vessel General Permit (VGP) so you can sail with confidence. Wärtsilä is the Original Equipment Manufacturer for every major component included within our packages and products, which ensures the perfect harmony of our solutions. Additionally, our global stock and service engineer network means we can support you and your vessel anywhere in the world.

The Wärtsilä Enviroguard and Iceguard ranges have long been the standard for military and commercial applications, and for sensitive, harsh environments. The range offers environmentally friendly, low maintenance, high performance face type seals, which have an extensive fitted history spanning many years and numerous different vessel types. These seals can accommodate large and repeated axial and radial shaft movements, as well as vibrations.

    Wärtsilä Enviroguard PSE

    The Wärtsilä Enviroguard PSE seal is a water lubricated, environmentally friendly inboard sealing solution which is suitable for both blue-water and abrasive water conditions. The product is designed to withstand large shaft movements without affecting the performance of the equipment. Developed to tolerate aggressive waters that may be heavy with silt or sand, the seal has a long track record of outstanding performance in all water conditions. The Enviroguard PSE seal offers increased reliability and ensures that there is no risk of polluting the marine environment. This seal comprises hard wearing interfaces for abrasion resistance and is suitable for both new build and retrofit for any commercial vessel, the product has partially and fully split options for ease of maintenance and seal replacement. The Wärtsilä Enviroguard PSE is available in sizes between 70mm and 460mm, with fully and partially split options available. Installation is easy, and the seal can be retrofitted to almost any stern tube.

    5 Year Service Intervals
    With no maintenance between planned overhauls (up to 5 years), the PSE is a reliable solution.

    Inflatable Seal
    For complete peace of mind, the Wärtsilä Enviroguard PSE seal has an inflatable seal in the event of an emergency or in water seal maintenance.

    Hard Wearing Interfaces
    Silicon carbide sealing contact materials are resistant to abrasives and particulates in the water.

    • Shaft diameter - Ø70 to Ø460mm (PSE)
    • Axial movement 8mm AFT/8mm FWD
    • Radial movement Up to 5mm
    • Service pressure - 1.0 bar maximum 
    • Operating temperature -5°C to 40°C
     
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    Wärtsilä Enviroguard MD
    The Wartsila Enviroguard MD is renowned for its exceptional performance in tough water conditions. Shock proven, the seal provides low lifecycle cost by withstanding high shaft movements with minimal oil leakage and is serviceable afloat. This large range Enviroguard offering is water-lubricated and is suitable for military, cruise and merchant vessels, which often have to operate in different water conditions for long time periods. Designed to interface with your ship design, the Enviroguard MD is also available in fully or partial split options, with an optional packing gland for emergency sealing where required.
     
    The Wärtsilä Enviroguard MD is a ‘robust, reliable solution’, which assists vessel owners in avoiding costly shaft or liner replacements. This ensures a long component lifetime and reduced lifecycle cost. Fully or partially split solutions demonstrate the reliability achieved with the Enviroguard MD in enabling maintenance and seal replacement without removing the shaft.
    4-5 Year Service Intervals
    With no maintenance between planned overhauls (up to 5 years), the Enviroguard MD is a reliable solution for hard working boats. 

    Reliable solution

    The Enviroguard MD is a high performing and low maintenance solution spanning an extensive fitting period. 

    In-situ maintenance

    Maintenance can be completed afloat through the use of an inflatable seal, which can help reduce time spent in docking. 
    • Shaft size - 250mm to 900 mm
    • Operating pressure 1.0 Bar Max
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    This seal type comprises of a unique omega bellows arrangement, which ensures the Face seal remains in contact with the Seat.
     
    Wärtsilä Enviroguard MG4

    To ensure low through life cost for larger vessel types Wärtsilä has specially developed the next generation of Enviroguard seal, namely the Wärtsilä Enviroguard MG4. The seal incorporates high wear resistant interface materials, corrosion resistant metal components and a flexible design of rubber bellows. The excellent design and the use of high quality materials ensure that your vessels runs smoothly even in the most challenging environments.

    • Shaft diameter - Ø460 to Ø820mm (MG4)
    • Axial movement 8mm AFT/8mm FWD
    • Radial movement Up to 5mm
    • Service pressure - 1.0 bar maximum 
    • Operating temperature -5°C to 40°C
     
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    Wärtsilä Enviroguard MA
    The Wartsila Enviroguard MA is highly regarded for its reliable performance in difficult weather conditions. Shock proven, the seal can provide low lifecycle cost by enduring high shaft movements with minimal seal leakage. The seal is also serviceable and replaceable afloat. This large range Enviroguard offering is water-lubricated and is suitable for military, cruise and merchant vessels, which often have to operate in different water conditions for long time periods. Designed to interface with your ship design, the Enviroguard MA is also available in fully or partial split options, with an optional packing gland for emergency sealing where required.
     
    The Wärtsilä Enviroguard MA is a ‘robust, reliable solution’, which assists vessel owners in avoiding costly shaft or liner replacements. This ensures a long component lifetime and reduced lifecycle cost. Fully or partially split solutions demonstrate the reliability achieved with the Enviroguard MA in enabling maintenance and seal replacement without removing the shaft.
    • Shaft size - 250mm to 900 mm
    • Operating pressure 1.0 Bar Max
    This seal type comprises of a unique omega bellows arrangement, which ensures the Face seal remains in contact with the Seat.
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    Wärtsilä Enviroguard M9
    The Wärtsilä Enviroguard M9 is designed to provide the high reliability and performance demanded by customers. The seal has been designed and developed from many years of experience of operational service conditions. Fully split components to allow for full overhaul access and a robust construction enables operation on high speed shafts. The construction and design of the seal accommodates large shaft movements for shock applications.
     

     
    • Shaft size - 250mm to 900 mm
    • Axial movement  -26mm to +43mm
    • Radial Movement  ± 10mm
    • Operating pressure 1.0 Bar Max
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