This includes all manufacturing, erection and service activities of the company. Manufacture division offers complete solutions of production orders in the scope of design, manufacturing documentation, delivery, erection, putting into operation, guarantee and post-guarantee service.
The division is located in a modern production plant, it disposes of experienced team of technical employees and manufacturing baseline of expert staff. Professional approach of our employees supported by experience enables to optimise separate technological processes with the aim to reach minimal time of realisation while keeping the quality above standard.
All processes are being performed within the standards of ISO 9001:2008, ISO 14001:2004, OHSAS 18001:2007, in compliance with which ROEZ company is certified. Preparation and execution of welding are processed in compliance with EN ISO 3834. Long –time experience with manufacture of equipment for NPP and also for hydro power. Own designing department, department for stress, fatigue, seismic and process calculations,
experience in reverse engineering.
Simple (single-shell vessels) 
Supplied storage vessels are of welded structures. The vessel shell is made of rounded sheets finished by bottoms– flat, conic, arched (e.g. DIN 28 011). Storage vessel can be in vertical or horizontal version. The supports for installation of the vessel are in basic version designed:
in alternative versions: with 3 supports (legs), 4 supports, cylindrical rack with anchoring flange (chapel), footings located on the shell (applicable for vertical vessels).
in two saddle supports, symmetrically positioned on the vessel shell (applicable for horizontal vessels).
Connection to media distributions is solved via throats. The throats can have following finishing– preparation for connection to pipeline: throat with flange, throat with external / internal thread, throat with bevel for weld. To assure inspections of internal area it is possible to equip the vessel by a manhole.
Material version of the vessel can be of carbon steel, stainless steel. Surface treatment for carbon materials is chosen based on demandingness of external ambient and based on medium in the vessel. Standard surface treatments include polyurethane, epoxide and synthetic painting systems. For aggressive media it is possible to coat the inside of the vessel by rubber. Stainless materials are pickled and passivated. Other requirements for surface treatment shall be discussed with our employees.
The vessels can be delivered per request as well as seismic resistant ones. We perform design and declaration of seismic resistance by calculation method as a priority. Qualification by physical test is possible after discussion with our employees.
Operational parameters:
Pressure: max. 0,1 MPa
Temperature: max. 250oC
* higher parameters per request
Double (twin-shell) vessels
Twin-shell vessels can be used for heating / cooling of media in internal shell by other medium which flows in the interspace between the internal and external shell (duplicator). Other usage of twin-shell vessel is possible as a storage vessel preventing stored medium against leakage due to damage on the internal shell of the vessel. In such applications the external shell serves as emergency (arresting) tub. Interspace can be equipped by a sensor which can detect damaging of internal shell and at the same time leakage of the medium into arresting interspace.
Supplied twin-shells (duplicator) vessels are of welded structure. Internal as well as external shells of the vessel are made of rounded sheets finished by arched ends– flat, conic, arched ones (e.g. DIN 28 011).
The vessel can be in vertical or horizontal version. The supports for vessels installation are in basic version designed as:
in alternative versions: with 3 supports (legs), 4 supports, cylindrical rack with anchoring flange (chapel), footings located on the shell (applicable for vertical vessels).
in two saddle supports, symmetrically positioned on the vessel shell (applicable for horizontal vessels).
Connection to media distributions is solved via throats. The throats can have following finishing– preparation for connection to pipeline: throat with flange, throat with external / internal thread, throat with bevel for weld. To assure inspections of internal area it is possible to equip the vessel by a manhole.
Material version of the vessel can be of carbon steel, stainless steel. Surface treatment for carbon materials is chosen based on demandingness of external ambient and based on medium in the vessel. Standard surface treatments include polyurethane, epoxide and synthetic painting systems. For aggressive media it is possible to coat the inside of the vessel by rubber. Stainless materials are pickled and passivated. Other requirements for surface treatment shall be discussed with our employees.
The vessels can be delivered per request as well as seismic resistant ones. We perform design and declaration of seismic resistance by calculation method as a priority. Qualification by physical test is possible after discussion with our employees.
Operational parameters:
Internal vessel pressure: max. 0,15 MPa
Pressure in inter-space: max. 0,05 MPa
Temperature: max. 250oC
* higher parameters per request
