DIN PN6 – PN40 Threaded Flange Manufacturer

In DIN Threaded Flanges, pressure ratings are represented by the prefix “PN,” which stands for “Pressure Nominal.” Common PN ratings include PN6, PN10, PN16, PN25, and PN40, each reflecting the maximum pressure (in bars) that the flange can withstand at a reference temperature, which is commonly 20°C. Under typical settings, a PN16 flange can sustain 16 bars (or roughly 232 psi) of pressure. These ratings are critical in determining the best flange for safe and dependable operation in various pipe systems, particularly when dealing with changing fluid pressures and temperatures.

Understanding and selecting the appropriate PN rating is critical to preventing pipeline failures or leaks. For lower-pressure systems, such as water pipes, PN6 or PN10 flanges may be sufficient. However, in high-pressure applications such as oil and gas or steam lines, PN25 or PN40 flanges are preferred. Werner Flanges Inc. provides a large assortment of DIN PN6-PN40 Threaded Flanges that are manufactured to stringent specifications, assuring both safety and performance. Contact sales@wernerflanges.com for expert advice or to place an order.

• Operating Pressure and Temperature: Always select a flange PN rating that can handle both the system’s maximum pressure and temperature. Higher temperatures reduce the pressure tolerance of flanges.
• Type of Fluid or Gas: Corrosive or hazardous media such as acids, steam, or gases require flanges made from compatible, durable materials that can handle the pressure safely.
• Material Compatibility: Choose materials like stainless steel, carbon steel, or exotic alloys (e.g., Inconel, Monel) based on chemical compatibility and strength requirements.
• Pipe Size and Wall Thickness: Larger diameter pipes or thicker walls typically require flanges with higher pressure ratings for a secure, leak-free connection.
• Mechanical Loads: Consider external loads such as thermal expansion, vibration, and bending forces which may impact flange performance under pressure.
• Installation Environment: Harsh environmental conditions like marine atmospheres, underground pipelines, or high-humidity areas can influence material selection and required pressure ratings.
• Safety and Regulatory Compliance: Ensure flanges meet DIN EN 1092-1 standards and comply with industry-specific codes or project specifications for pressure equipment.
• Application Type: Applications such as heat exchangers, high-pressure lines, or chemical transfer require higher-rated flanges to maintain system integrity.
• Manufacturer Support: Work with reliable manufacturers like Werner Flanges Inc. for guidance, testing certifications, and pressure class recommendations tailored to your specific needs.
• Need Help? For expert support or custom DIN PN6–PN40 Threaded Flanges, email us at sales@wernerflanges.com.

• Enhanced Safety: Correct pressure ratings help prevent leaks, blowouts, and flange failures, ensuring the safe operation of pipelines and equipment.
• Leak-Free Connections: Properly rated flanges create tight seals, minimizing the risk of fluid or gas escape, especially in high-pressure environments.
• System Reliability: Using flanges that match system specifications ensures stable, long-term performance and reduces the chances of unplanned downtime.
• Cost Efficiency: Avoids expensive repairs, replacements, and shutdowns by preventing failures due to under-rated flange selection.
• Compliance with Industry Standards: Properly rated DIN threaded flanges meet DIN EN 1092-1 standards, ensuring regulatory and project compliance.
• Versatile Application: Rated flanges can be safely used across diverse industries such as oil & gas, water treatment, chemical processing, and HVAC systems.
• Material Optimization: Ensures the selected flange material can withstand the specific pressure and temperature conditions, maximizing performance and durability.
• Ease of Maintenance: Proper flange selection reduces the need for frequent maintenance, making system servicing more efficient and predictable.
• Operational Confidence: Engineers and operators can trust in the mechanical integrity of the system when correct pressure-rated flanges are used.
• Need Expert Guidance? Contact Werner Flanges Inc. at sales@wernerflanges.com for reliable DIN PN6–PN40 threaded flanges tailored to your pressure requirements.