Derval operates a fully certified Quality Assurance System according to UNI  EN ISO 9001. All major suppliers are fully certified as well, to meet the most severe international standards of Quality and Performance.

Each valve is in accordance to the relevant API, ASME, UNI, EN, ISO, NACE, DIN and BSi standard and it's furnished with certificates according to the relevant standards and specifications.

Our Steel Valves are designed, manufactured and tested in strict conformance to API 600, ASME B16.34, API 598, and other recognized standards. All materials are certified to UNI EN 10204 3.1 as standard.

Our policy consists in supplying material strictly applicable with the EU market's demands; in fact, all Derval Valves are in compliance with European Pressure Directive (PED) 2014/68/EU as standard and meet the safety requirements of the ATEX Directive 2014/34/EU. 

Our aim is the continuous improvement of all Derval’s products and services, through teamwork, training and performance, involving all aspects of the business process.

Derval Steel Valves are not only characterized by outstanding performance, reliability and quality: they’re also known for their standard features, which are normally optional in other brands.

If you wish to receive any further information about Derval’s valve program or about our complete production program, please don’t hesitate to contact our sales department.


ISO 9001

ISO 14001

PED 2014/68/EU

ATEX 2014/34/EU

API 6FA / API 607
ISO 10497