Reactor internals

HMDS Process provides equipment and solutions for catalytic reactors for new projects, replacement or revamping. Our team is comprised of skilled people with more than 30 years of experience working on the design, manufacturing, and installation of highly critical catalytic reactors internals for the major Oil and Gas companies and process licensors.

Project management and coordination are handled by HMDS Process that will be your unique contact, handling the entire project.

VIDEM (Euroslot Pars) is our workshop, a manufacturing company since 2005 for column internals, catalytic reactor internals and separation equipment.

Our common objective is to carry out your projects at the highest level of performance so that you may rely on us for other projects.

Place your trust in us. You can count on us.


Vessel Internals

HMDS process propose a wide range of internals for media retention which are used in different process because their very high mechanical resistance, important open area, precision and design flexibility make it a high performance equipment that fits all applications in high or low temperature

HMDS Process Internals is made from welded profile wire on supports designed according to data sheet provided by the customer. This assembly is an anti-clogging process because the profile wire shape allows only two contact points and a large open area.

The Vee-wire internals are used principally for two below process.


  • Inlet distributor
  • Support grid
  • Collector Basket
  • Liquid Distributor Tray
  • Quench Mixing tray
  • Beams


  • Inlet distributor
  • Centerpipe
  • SCS Basket®
  • Scallops

The down flow reactor requires internal with very high resistance to collapse or buckling and Vee-wire screen exactly meet these constraints.

Due to their strength characteristics and their very long lifetime, internal in profile wire are used as media support in fixed bed reactors such as hydrocracking and desulfurizing.

Radial flow systems produce a smooth surface in contact with catalyst, a higher yield, less pressure drop across the bed and this advantages make it a high performance equipment that fits different process in high temperature such as: Ammonia converters, Catalytic reforming, Hydrodesulphurizing units and so forth.



We attach particular importance to that you can find an answer to your need in a short time. Our first concern is the satisfaction of our customers because you are our best ambassadors vis-a-vis our know-how.
The quality of our team is our ability to produce a product that meets the needs of our customers at a fair price. You trust us, you will not be disappointed.



3 chemin Beaulieu
86800 Sèvres Anxaumont - France
Email :

Tél. +33 (0)9 54 31 77 85