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hydraulic valves and blocks from Servi Group painted in yellow

Robust hydraulic valves and blocks for harsh environments

Our hydraulic products are designed to withstand harsh environments in the marine, offshore, hydropower and other challenging industries.

Contact us about vales and blocks


Ever since our establishment as Hydranor in 1962, we have delivered robust and reliable blocks to a wide range of sectors. The technology used in our blocks has been thoroughly tested over many years by the most demanding offshore and marine customers. In our design, we have strengthened the most exposed parts in the block with stainless steel components. This further increases the lifespan of our blocks. 


Winch block from Servi GroupCustom blocks from Servi Group

Plug and play – installation and maintenance

All of our hydraulic products is delivered with supplementary documentation, which simplifies installation and maintenance. 

The hydraulic valves are compact and have integrated functions. This simplifies installation and makes the products cost-effective. In addition, the design contribues with fewer leakage points, which reduces the need for maintenance. 

The documentation is user-friendly and the product easy to use, resulting in a winch block with long service life and enhanced performance. This is also in line with Servi’s life cycle philosophy.


Book service an valves


Our hydraulic valves for the marine sector are mostly used for:

- Cranes
- Offshore/drilling and production
- Seismic vessels
- Merchant vessels
- Fishing vessels
- Winch controls


Painting and testing

Painting and surface treatment to prevent rust

We can deliver all types of surface treatments, including painting, after the customers choice. 

All of our blocks are 100% function and pressure tested in accordance with customer requirements.


Higher valve performance with digitisation 

All of our hydraulic products can in adition to hydraulic remote control be delivered with:

  • Open loop electric remote control
  • Closed loop digital remote control 

We use Servi’s own developed valve technologyresulting in higher accuracy, repeatability, responsiveness, and performance. 

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Contact the factory in Kongsberg


24/7 Service - T +47 64 97 97 00
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