What is DN10 Flange?

When sourcing pipe connection components, one common term you will encounter is DN10 flange. Understanding what it means, its materials, applications, and how to choose a reliable manufacturer is essential—especially for buyers in Europe, including Germany.

“DN” stands for Diameter Nominal, a standard dimension system used in piping and fittings worldwide. It indicates the nominal inside diameter of the pipe in millimeters.

• DN10 flange means the nominal pipe size is 10 mm.
• When combined with pressure ratings, for example PN16 DN10 flange, it specifies both size (10 mm) and pressure class (PN16 = 16 bar).

This standardization ensures interchangeability across different manufacturers and countries.

Flanges are manufactured from different materials depending on the application and working conditions. Common options include:

• Carbon steel – durable and cost-effective, widely used in general industries.
• Stainless steel – corrosion-resistant, suitable for water treatment, chemical, and food industries.
• Alloy steel – enhanced strength for high-pressure and high-temperature environments.
• Cast iron or ductile iron – often used in low-pressure water pipelines.
• Plastic (PVC, CPVC, PE) – lightweight, corrosion-resistant, used in non-metallic systems.

A DN10 standard flange size is typically used in small-diameter pipelines. Common working conditions include:

• Water supply and drainage systems
• Compressed air lines
• Chemical dosing pipelines
• Instrumentation and control systems
• HVAC (Heating, Ventilation, and Air Conditioning) connections

Because of its small diameter, DN10 flange is often chosen for precision and auxiliary pipelines rather than large-scale fluid transport.

When selecting a supplier, especially for German or EU markets, consider the following:

• Quality Certifications: ISO 9001, CE marking, and Pressure Equipment Directive (PED 2014/68/EU) compliance are essential for Europe.
• Material Certification (EN 10204 3.1/3.2): Ensures traceability and quality of raw materials.
• Testing Standards: Hydrostatic testing, ultrasonic inspection, and surface treatment conformity.
• Production Capacity: Reliable manufacturers should guarantee consistent quality and timely delivery.
• Export Experience: Suppliers with proven records in Germany and Europe are more reliable for compliance and logistics.

With over 35 years of experience in manufacturing pipe fittings and flanges, Jizhong is a trusted supplier for international buyers. The company offers:

• A full range of flanges including PN16 DN10 flange and other DN sizes.
• Advanced production lines with strict quality control.
• Certifications that meet European and German standards.
• Fast delivery and competitive pricing for global markets.

For buyers looking for a dependable DN10 flange manufacturer, Jizhong combines technical expertise with international trade experience, making it a strong partner for industrial and construction projects worldwide.