In modern industrial piping systems, the safety and reliability of flange connections are crucial. EN1092-2, developed by the European Committee for Standardization (CEN), is the core technical specification for ensuring the quality and compatibility of cast iron flange connections. This article will provide an in-depth analysis of the core content and application value of this standard, helping you better understand how to select high-quality flange products that meet international standards.
What is EN 1092-2?
EN1092-2 is a European standard published by CEN in 1997 specifically for cast iron flange connections. This standard specifies the technical requirements for PN series round flanges made of ductile iron, gray cast iron, and malleable cast iron, covering a full range of specifications from dimensional tolerances and material properties to testing methods.
Material Specifications
- Ductile iron: Excellent strength and toughness
- Gray cast iron: Good castability and wear resistance
- Mallable cast iron: Combines strength and plasticity
Quality Control and Testing
- EN1092-2 requires all flange products to pass the following:
- Hydraulic pressure test: Verify pressure bearing capacity
- Air tightness test: Ensure sealing performance
- Material chemical composition analysis: Ensure material compliance with standards
- Mechanical property testing: Verify strength, hardness, and other indicators
Application Value and Advantages
- Ensure system safety
- Improve compatibility
- Reduced lifecycle costs
For engineering contractors, equipment manufacturers, and end users, choosing flanges that comply with EN 1092-2 means:
- Reliable quality assurance
- Ensuring regulatory compliance (especially in the EU market)
- Reducing liability risks
- Increasing system reliability
Post time: Sep-18-2025
