ERMA FIRST System / Package
ERMA FIRST ESD
FLEXCAP, FLEXRING and FLEXFINS propeller energy saving devices that raise propulsive efficiency and support EEXI and CII compliance.
Description
The ERMA FIRST ESD range comprises FLEXCAP, FLEXRING and FLEXFINS, each with a bespoke design for the vessel. The devices aim to improve EEXI and CII performance, reduce fuel consumption and operating expenses, increase propulsive efficiency and improve engine load, wear and part lifecycle.
FLEXCAP reduces hub vortex formation, cavitation and noise. It is made of NiAlBronze, the same material as the propeller, at about 23%-25% of the propeller diameter and roughly 3% of the propeller weight, so shaft alignment does not need recalculating. FLEXRING guides flow toward the propeller to improve propulsive efficiency and can develop some thrust on the duct; with optional fins aligned properly it creates a pre-swirl effect.
Key features
- FLEXCAP, FLEXRING and FLEXFINS with bespoke design
- FLEXCAP diameter approximately 23%-25% of propeller diameter
- FLEXCAP weight roughly 3% of propeller weight
- FLEXCAP material NiAlBronze
Applications
- Propulsion efficiency upgrades for EEXI and CII compliance
Specifications
| FLEXCAP diameter | approximately 23%-25% of propeller diameter |
|---|---|
| FLEXCAP weight | roughly 3% of propeller weight |
| FLEXCAP material | NiAlBronze |
More from ERMA FIRST
Featured products
All products →
Component
A100-L / A200-L
Accelleron A100-L and A200-L turbochargers for low-speed two-stroke marine engines from 3,000 kW to 28,000 kW, with efficiency up to 75%, up to 30% lower weight than TPL-B and Turbo Insights included.
Equipment
OMEGA Laser Plate™
Laser-welded pillow plate (immersion plate) heat exchangers in stainless steel, duplex, nickel alloys or titanium — custom-built for cargo hold and tank heating, heat recovery and de-icing on ships and offshore units; supplied by R.W. Fernstrum with Omega Thermo Products.
Equipment
Oceanbird wing sails
Oceanbird rigid wing sails from AlfaWall Oceanbird (Alfa Laval and Wallenius) for wind-assisted or fully sailing newbuilds and retrofits; one Wing 560 can cut RoRo main engine fuel use by 7–10%.