How We Work

Sanitary TIG Welding

TIG sanitary welds with maximum precision and heat control, ensuring smooth internal surfaces, free of burrs or porosities.

How We Work

Technical Execution with Field Control and Compliance Focus.

We perform sanitary TIG welds with maximum precision and heat control, ensuring smooth internal surfaces, free of burrs or porosities. Our welders are qualified according to ABNT NBR ISO 9606-1 and ASME IX standards, ensuring safe, high-integrity joints. The result is piping with hygienic finish and ideal resistance for pharmaceutical and food applications.

Stainless steel pipe welding with sanitary finish

Rigorous heat input and argon purge control

Welder qualification per ISO 9606-1 and ASME IX

Internal finish with roughness Ra ≤ 0.8 µm

Complete documentation for traceability (WPS, PQR, weld maps)

Quality Standard

Quality & Deliverables

Standard engineering deliverables included with every service execution.

Full Data Book

WPS, PQR, weld map, welder qualifications and material certificates (3.1).

Digital Boroscopy & Visual QA

Internal visual inspections with video boroscopy report on critical joints.

Roughness Control (Ra)

Calibrated surface roughness measurement (Ra ≤ 0.8 µm or Ra ≤ 0.4 µm as per spec).

Pressure & Hydrostatic Test

Certified leak-tightness and hydrostatic testing before line release.

Frequently Asked Questions

Clear Information for Those Seeking a Reliable Technical Partner.

Top questions about our processes, standards, documentation, and service.

Does Montech provide the full data book for the work performed?

Yes. All our installations are delivered with a complete technical folder (Data Book), containing material certificates, welder qualifications (WPS, PQR, IQR), weld maps, borescopy reports, and hydrostatic test certificates.

Which technical standards do you follow for stainless steel welding?

We operate under international standards such as ASME BPE (Bioprocessing Equipment) for sanitary systems, AWS D18.1/D18.2 for food/pharmaceutical applications, and ASME IX for general pressurized system qualifications.

Is it possible to integrate weld traceability with our ERP?

Yes. Our internal traceability system can export data in digital format (XML, CSV, PDF), facilitating integration with industrial ERPs, maintenance software, and BIM platforms.

How is thermal control performed during orbital welding?

We monitor current, voltage, speed, and heat input profiles in real-time, with parameters recorded electronically in the equipment. This ensures repeatability and constant quality across all joints.

What criteria does Montech adopt for welder and procedure qualification?

We follow ABNT NBR ISO 9606-1 and ASME IX standards, performing mechanical tests, visual inspections, dye penetrant tests, and macrostructure analysis, ensuring total compliance before execution.

Do you offer technical support during FAT/SAT or system start-up?

Yes. We provide technical support during FAT (Factory Acceptance Test) and SAT (Site Acceptance Test), ensuring that all lines and connections are within the specified performance parameters.

Technical Support