OFFSHORE WIND FARMS & RENEWABLES
Compared to conventional HV-standard joints, IHF Fasteners offer several advantages: • Integrated washers: In contrast to an HV-set, the more recent bolt and nut set consists only of two components, the IHF Stretchbolt and Roundnut, which simplifies and accelerates the installation process, especially offshore. • Design and optimized load distribution enable higher utilization of the material. • This enables a.) to use less number of IHF fasteners compared to standard fasteners or b.) reduce the dimensions of the flange.
Due to their proven design IHF Round Nuts up to M80 (3 1/8") have received the European Technical Approval (ETA) by the DIBt (German Institute of Construction) to be applied as a substitute for conventional HV-standard fastener configurations.
Installation Know-How and Results The “Maintenance-Free-Bolting” concept also includes several components that lead to a faster installation process.
ITH hydraulic bolt tensioning cylinders can be equipped with handling systems and automatization components, which enable a semi-automatic nut run-down and an automatic nut alignment.
Set of IHF
Roundnuts and IHF head bolts.
Next to the Maintenance-Free-Bolting concept, ITH Bolting Technology also provides bolting tools, fasteners and service for main wind turbine nacelle bolting applications. Comprehensive support in terms of installation supervision, tool maintenance, tool calibration and further is guaranteed by the global ITH network.
Both automatization components are managed by the ITH software. Via an industrial touch-panel PC, users get a visual step-by-step process guidance. Bolt-tightening procedures are often subjected to the risk of possible incorrect operation, which is avoided by the user guide.
This process design not only accelerates installation procedures but also guarantees precise results. Special offshore packaging and the fact that no washers are required also simplifies and accelerates the installation.
Wind Turbine Application and Solutions The proven “Maintenance-Free-Bolting” concept is in use on: • Turbine tower bolts • Transition-piece to tower bolts • Monopile-to-transition piece
Contact the global ITH network to find the local representative in your country. We would be happy to offer technical advice.
ITH Bolting Technology
Global ITH network contacts:
www.ith.com/en/contact/
contact.php
ITH GmbH & Co. KG | Steinwiese 8 | Postbox 1365 | 59872 Meschede | Germany
q T: +49 (0) 291 - 99 62 - 0 q F: +49 (0) 291 - 99 62 - 11 E
sales@ith.com H
www.ith.com
www.maintenance-free-bolting.com
Coming up in the March 2021 issue of Subsea & Offshore Service Magazine…
• Diving Equipment & Underwater Services • Connectors, Cables & Umbilicals • Training & Development • Hazardous Area • Pumps, Valves & Hydraulics
If you have any news, insights or product launches that you would like to share with our readers, please email them to:
editor@sosmagazine.biz for consideration in future issues.
February 2021
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