Omni™ Commercial Bulkhead Seals

Cost Effective Hydroactive Sealing Technology

Designed for commercial vessels the Omni Series also uses Hydroactive technology to deliver a more cost effective solution.The Omni Series bulkhead seal is a normally non-contacting seal activates only in the presence of water, eliminating premature failure. Developed and tested utilizing the same Naval guidelines for lifetime qualification as the Reliant Series, the Omni Series is a proven system that will perform when it really counts. No Wear. No Maintenance. No Compromise.

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Simple Static Design

The Omni series seal maintains all of the benefits of being a self-activating, non-contacting HydroActive™ seal at a lower procurement cost. This lower cost is directly attributed to the simple static design of the seal. It primary difference to the military grade Reliant series is that the Omni series seal does not translate with the shaft. This enables a lower part count which leads to a lower cost option for your ship. The Omni is the seal of choice for ships which have small shaft deflections.

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Self-activating, non-Contacting HydroActive Design

The core technology behind Midé Marine’s innovative bulkhead seals is its hydrogel embedded foam. Developed over the past decade, this foam enables our seal to not contact the rotating shaft during the majority of its life. However, when duty calls and a flooding event is occurring, the hydrogel embedded foam uses the water from the flooding to swell and provide a robust and reliable seal against the shaft, protecting the ship and her sailors. Rigorous testing to Navy standards has shown the ability of the seal to operate up to 1000 hours with the seal engaged after a flooding. By not contacting the shaft the seal has no wearing components. No wear means no maintenance. No maintenance leads to a very low total ownership costs for our customers. Another benefit of being a non-contacting seal is that the mounting requirements (circularity and angularity) can be more lenient compared to other products.

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Split Design

All of Midé’s bulkhead products utilize a split design. A split design allows for our seals to be easily installed onto a ship without having to remove the shaft. This is a critical design feature to ensure our seals are the lowest total ownership cost seals on the market.

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Lightweight

All of Midé’s bulkhead seal products utilize lightweight materials where appropriate. Lightweight materials allow for easier installation, a reduction in installation costs and a lighter and more efficient ship.

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ABS Product Design Approval

To make it as easy as possible to include Midé’s bulkhead seal products into your ship design and production all of our products have ABS product design approval.

ABS Certificate of Design Assessment (PDF)

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DNV Type Approval Certificate

To make it as easy as possible to include Midé’s bulkhead seal products into your ship design and production, all of our products have DNV Type Approval Certificates.

DNV Type Approval Certificate (PDF)

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Specifications

Operating Pressures	up to 30 psi (2 bar)
Shaft Surface Speed	Unlimited during normal operating conditions
Surface Finish Required	63 µ-inch or better (1.6 µ-meter)
Allowable Angular Misalignment	0.5 degrees
Leak Rate	Less than 1 US Pint per minute (473 mL/min)
Shaft Deflections	± 10mm, .4"
Key Features	Non contacting, non rotating, reusable, cost-effective
Approvals	ABS, DNV

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Advantages

Applications

Omni Series Bulkhead Shaft Seals are designed for vessels which do not have large shaft deflections, but still require a sealing system that is second to none. Market research has shown Midé that typical shaft deflections on commercial vessels are +\- 5 mm, Omni Series seals offer up to +\- 10 mm. With a standard shaft diameter range of 50 mm to 1000 mm Midé Marine’s Omni Series Bulkhead Shaft Seal is designed to fit virtually any size shaft, and can be custom fit to your application. Omni Series seals have been designed to fit the following types of ship, but can be engineered to fit most any ship on the water today:

• Crew Boats
• Research Vessels
• Dredges
• Work Boats
• Tugs
• Ferries
• Yachts

Other Applications

Midé Marine’s HydroActive™ technology is not limited to propulsion shafting; it can be customized to created watertight integrity for a variety of environments. Hydroactive sealing technology also provides the unique capability of sealing regardless of orientation.

While many seals on the market today are affected by gravity, Midé Marines seals can work vertically, horizontally, or anywhere in between - from sealing pump casings that run between compartments, to riser pipes on oil rigs.

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Savings over time - total ownership costs

Due to it's advanced HydroActive technology, Mide Marine's bulkhead seals may have a slightly higher upfront cost than some of its competitors. However, this cost is quickly negated - in less than two years - as its self-activating, non-contacting design only requires a small amount of maintenance and never needs to have any components replaced.

Competitor costs (figures based on a current customer):
Competitor bulkhead seals require bi-annual replacement of the wearing components, a re-machining of the housing supporting of the wearing components every four years and a complete replacement every six years after the housing has worn beyond the specification - leading to a very high total ownership cost.

Mide Marine's costs:
Mide Marine's total ownership cost plot shows yearly regular maintenance (visual inspection) and a functionality test performed every five years. There are no wearing parts to replace - leading to a very low total ownership cost.

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