Control and equipment designers have struggled to find ways to avoid cutting and reattaching connectors. Roxtec now offers a solution. By selecting the company’s seals, engineers can regain control of design, performance, safety, and costs. The design allows sealing multiple pre-terminated cables in one opening, reducing the risk of EMI and signal loss associated with
Wind farm grouting contractor selected for 108 monopiles in the Irish Sea
FoundOcean has been awarded a major offshore wind farm grouting contract in European waters by Offshore Wind Force, a joint venture of Dutch-based contractors Volker Stevin Offshore and Boskalis Offshore. The West of Duddon Sands Offshore Wind Farm is being constructed by DONG Energy and ScottishPower Renewables in the east Irish Sea, approximately 14km from
Modular cable seal fits many diameters
An unusual modular seal fits tightly around cables and lets cables pass through bulkheads. The developer says the seal provides a complete safety solution for long-term, cost-effective operational reliability in onshore and offshore wind farms. The Multidiameter seal from Roxtec, is an adaptable sealing device based on a rubber-sealing module that consists of two halves,
Sealing material turns 50. No retirement in sight
From airplanes to spacecraft, prosthetics to wind turbines, and almost everything in between, Turcon performs well for a broad range of applications. This material is a part of—and has made possible—some of the most innovative engineering advancements in the last half-century. Now, on the eve of the PTFE material’s 50th anniversary, its developer, Trelleborg Sealing
Radial shaft seals for large bearings
Reinforced all-rubber HSS radial shaft seals minimize contaminants and extend service life for large bearings in wind turbine drive trains, say their developers. SKF seals are for installation or uptower replacement during maintenance procedures. Minimal space requirements allow for smaller and lighter bearing housings, potentially reducing turbine weight. The seals integrate Duratemp hydrogenated nitrile rubber,
2012: Trends in seals
For the highest possible capacity factor, wind farms are sited where they will be exposed to as much consistent wind as possible. Consequently, all parts of a wind turbine are subjected to extremes of weather, ozone, unusual stresses, and vibration. Things get worse offshore where they must also withstand the rigors of the sea including
Matching seal, shaft, and lube saves wind seals
An ideal combination of radial shaft seal, shaft surface, and lubricant can increase seal life three-fold and reduce friction at the sealing lip by up to 30%. Nacelles become oily places when wind seals don’t work well. To find better seals, our companies developed a way to work in close cooperation with users to
Light-weight tradeoff: Polymer for steel
Victrex Peek (polyaryletherketone) polymers is said to be a good choice when replacing metal wind-turbine components. The high performance and light-weight material allows up to a 70% weight reduction. This can lower stress on the components and reduce energy needed to power the turbine. The tribological characteristics of this thermoplastic compared to metals also helps
Seals 101
Component design often overlooks the importance of well-engineered seals. Properly engineered seals increase the mean time between component failures, reduce manufacturing costs associated with the use of exotic coatings, and reduce power consumption due to unnecessarily high friction. Data required to select a seal includes: • Size – shaft, housing bore, and available seal width










