In industrial systems, every valve is more than just a part — it’s a safeguard for safety, reliability, and performance.
Whether in oil & gas, water treatment, or power generation, traceability and certification are key to preventing costly downtime.
One of the most essential documents proving this quality assurance is the EN 10204 3.1 certificate.
🔍 What Is EN 10204 3.1?
EN 10204 defines the type of inspection documents supplied with metal products.
A 3.1 certificate (also known as a Mill Test Certificate) confirms that the material supplied meets the required chemical and mechanical properties, verified by the manufacturer’s independent quality control department.
It includes:
· Chemical composition
· Mechanical test results (tensile, yield, hardness)
· Heat number and batch traceability
· Confirmation of compliance with standards
In short, it is the passport of quality and material authenticity.
⚙️ Why It Matters in Valve Procurement
1. Material Authenticity & Traceability
Ensures the valve body, cap, and stem are made from verified material grades, preventing mismatched or counterfeit materials.
2. Compliance with Global Standards
EN 10204 3.1 certification is often required for PED, API, and DIN compliance — essential for project acceptance and third-party inspections.
3. Confidence in Quality
Provides end-users and EPC contractors with documented assurance that each valve component meets design and safety expectations.
🧰 Anson Flow’s Commitment to Quality
At Anson Flow, we take quality and traceability seriously.
All our valves comply with EN 10204 3.1, ISO 9001, and API / DIN / BS standards.
Each valve undergoes strict material verification, dimensional checks, pressure testing, and traceability by heat number.
This ensures every Anson Flow valve — from ball valves to cryogenic or lined series — meets the highest quality standards demanded by global clients.
✅ Conclusion
Requiring EN 10204 3.1 certification is not just about paperwork — it’s about accountability, safety, and long-term reliability.
When you choose Anson Flow, you choose a partner who values quality from raw material to final inspection.
Contact Anson Flow today to learn more about our certified valves and inspection system.
Let’s build safer, more reliable flow control together.