Know How

FILTRES EQUIPEMENTS masters the knowledge of the boiler making and as such is recognized in the activities related to the boiler making trades. Our pressurized equipment are used in various industrial environments such as the gas, oil, pharmaceuticals, waste treatment industry and so on.


We apply a policy in accordance with our ISO 9001 certification ed. 2015 and participate collectively to meet our commitments to our customers. We carry values of technical excellence, sense of service and a customer relationship based on trust and transparency.

Boiler making

Chaudronnerie pétrole gaz pression

The boiler making company FILTRES EQUIPEMENTS covers all activities involving the processing of sheet metals, tubes and profiles used in the manufacturing of equipment. They are intended for food, chemical, energy (oil and gas), framing, gas and liquid handling, processing industries and waste treatment applications.


Our know-how and our tools help us adapt to the different constraints, techniques and materials used in the industry. As such, our products are made of non-alloy, low-alloy steel and high-alloy steels. These steels are grade P355 NL1, P265GH, A516 Gr70, A333 Gr6 ... for carbon steels and grade Z2CN18.10, Z2CND17.12.2, 304 & 316L, 904L for stainless steels.


Some of our products undergo a heat treatment after welding in order to reduce the mechanical stress associated with welding activities.


We also offer surface treatment in order to deliver a quality and time resistant product: sanding followed by the application of an ACQPA qualified coating. This process may be supplemented with a paint or a metallization coat.

Design office

FILTRES EQUIPEMENTS has an integrated Design Office which defines and designs our manufactures. The Design Office calculates the correct dimensions according to the codes and standards prescribed by our customers. It is also the guarantor of the dimensioning of a process point of view concerning the conformity of the delivered products. Our experts are able to determine the best size, shape of the materials, steel grades as well as their adequacy in the environments in which they will be exploited.


 Our constant search for innovative solutions in the filtration process is a major challenge for our customers. That is why, our Design Office sometimes uses finite element calculation methods and is attentive to new technologies on the market. Moreover, our CAD software and calculations are known and validated by the French administration to meet regulatory requirements.


Boiler tracing

The tracer in boiler making’s mission is to produce boiler structures by assembling and forming parts and sheets, tubes and profiles of different dimensions. The tracer will use different techniques to manufacture these pieces: the pointing method, welding or bolting on prefabrication manikin... The tracer also conducts a second level verification to ensure delivered products’ compliance.



Preparation & Oxycutting

The oxycutting operator’s role is complementary to the tracer’s in boiler making. The latter prepares the edges of ends of sheets and tubes for welding. The tracer implants different openings used for different taps on the shells. He uses various equipment such as oxycutting torch, plasma and laser cutting.


Soudage Chaudronnerie pétrole gaz pression

FILTRES EQUIPEMENTS, as a manufacturer of pressure vessels, uses welding as the primary method of assembly. This core business requires welding process ratings from norms and standards. We have been awarded EN15614-1, ASME VIII, AD MERKBLATT HP0, CODAP, … qualifications.




This activity includes the descriptions of welding procedures, the measures to be taken, to avoid any deformation during and after the welding, the welding sequence with the restrictions and the requirements for the intermediate verifications. Welding also takes into account the special requirements of consumables such as bead shape and weld finish for stainless steels, acceptance criteria for welds, and the requirements for the identification of welders. The latter are also qualified according to EN standards as well as ASME standards. In order to conduct this activity as efficiently as possible and to allow regular monitoring, the presence of a welding coordinator guarantees an outstanding manufacturing quality.



The welding processes implemented within the company are usually TIG welding (141), coated electrode welding (111), semi-automatic welding of solid wire and flux cored wire (135-136), and submerged arc automatic welding (121). These same processes are also implemented during various works off-site except for the method 121.

Acceptance testing

All pressure vessels manufactured by FILTRES EQUIPEMENTS that requires it, undergo a hydraulic test. The test is in accordance with the European Directive 2014/68/EU requirements. For out-of-Europe countries, we can follow other standard and  codes.


This test is intended to subject the pressure vessel to an ultimate pressure test which is higher than the working pressure. These exceptional test conditions are verified by calculation and non-destructive testing to prevent equipment failure. Our trained personnel conducts these test in accordance with procedures governed by quality assurance.


The hydraulic test can also be supplemented by a pneumatic test to determine the tightness of low-pressure seal ranges. It can also test the tightness of reinforced saddles for example.


In addition to this test, the equipment is subject to a thorough visual inspection of its internal & external parts in order to treat any "cosmetic" anomalies. It is also an opportunity to freeze all the manufacturing dimensions needed to edit "as built" drawings.

Non-Destructive testing (NDT)

In order to comply with the building codes, standards and directives, our manufactured products are subject to Non-Destructive Testing and examination. These tests are carried out during progress and at the end of manufacturing by certified extern operators according to certification body COFREND.


Interventions are supported by validated procedures and comply with the regulatory requirements of European codes, standards and directives.


Control techniques allow the highlight of different types of defects: surface defects through penetrant testing (PT) or magnetic particle inspection (MT), for more in-depth defects, volumetric defects detectable either by ultrasound (UT) or by radiography (RT).

Destructive testing

If required, FILTRES EQUIPEMENTS creates samples assemblies to ensure that the pressure vessels, that are manufactured in production, remain in compliance with the mechanical requirements. To carry this out, production control samples are subjected to various laboratory tests accredited by COFRAC according to the EN17025 standard. These tests can be of different types such as tensile tests, folding, bending by impact (according to EN or ASME) at temperatures ranging from -296 ° C to +1000°C. Fatigue tests, macrographs, hardness can also be performed in the laboratory.

Piping & Industrial maintenance

The pipefitter job allows FILTRES EQUIPEMENTS to offer embedded solutions such as skid form or as a subset integrated into a set of pipes. All these items may include different elements or sections of piping or manual and automated valves. The finalized product can be pre-adjusted to allow for quick commissioning when integrated on site. Thanks to our years-long experience acquired in the treatment of gases on mobile units, we have gathered reliable and robust equipment.


This experience has also been used in the field of industrial maintenance. As such, we mastered customized manufacturing from design to implementation.


In accordance with the regulations applicable in the country of use, all the regulatory documentation is delivered with our products




We also offer surface treatment in order to deliver a quality product, time resistant: sanding followed by the application of an ACQPA qualified coating. This process may be supplemented with a paint or a metallization coat.