Nacional – “Making Safety Since 1976”

Company Overview & History

Founded in 1976 in Rubí (Barcelona, Spain), Válvulas Nacional, S.A. was established to support the growing oil & gas and chemical sectors.
For decades, the company has focused on designing and manufacturing safety valves in compliance with leading international standards such as API, ASME, ISO‑4126, AD 2000, and European directives: PED & ATEX.

Facilities & Production Capabilities

• Manufacturing plant covering 3,000 m² in Rubí, equipped with modern CNC machines, assembly lines, and professional testing laboratories.

• Long-term cooperation with certified subcontractors ensures flexibility and quick response to customer requirements.

Quality Standards & Certifications

• Quality management certified according to ISO 9001 (2008/2015).

• Valves designed under: ASME VIII, API‑526, ISO‑4126, AD 2000-Merkblatt standards.

• Testing according to: API‑527, ASME B16.34, EN ISO 4126‑1.

Main Product Lines

Offering a wide range of safety valves and related accessories, with sizes ranging from 1/2″ to 12″ in carbon steel, stainless steel, and special alloys. Key models include:

• Safety Valve Models: 3‑50, 3‑51, 51, 55, 64

• Pilot-Operated Safety Relief Valve

• Valve Silencers (for noise reduction)

Global Market Presence

• International distribution network with agents in over 20 countries, including Australia, Brazil, Turkey, Indonesia, the UK, and UAE.

• Products have been installed in major projects, such as Thermosolar power plants in Spain.

Conclusion

With nearly 50 years of experience, Nacional is one of the specialized manufacturers in the field of safety valves, meeting high technical standards, large-scale production capacity, and a strong international presence. The company is especially strong in developing safety valves for oil & gas, chemical, renewable energy, and other high-demand industrial applications.