Slip-On Flanges — Stainless & Carbon Steel | DIN / ANSI / ASME Standards

Slip-On Flanges are one of the most commonly used types of flanges in industrial piping systems. Designed to slide easily over the pipe and then welded both inside and outside to provide strength and leak-free performance, they offer a cost-effective and reliable solution for low-pressure applications.

Standards & Pressure Ratings

These flanges are manufactured according to multiple international standards to ensure compatibility and performance:

DIN Standards

• DIN 2573 – 6 Bar
• DIN 2576 – 10 Bar
• DIN 2544 – 25 Bar
• DIN 2545 – 40 Bar
• DIN 2543 – 16 Bar

ANSI / ASME Standards

• ASME B16.5 (Class 150 – 1500)
• ASME B16.47 Series B

Key Features

• Ease of Installation – The slip-on design allows quick alignment and welding, reducing installation time.
• Cost-Effective – Typically less expensive than welding neck flanges, making them ideal for low to moderate pressure lines.
• Versatile Use – Suitable for a variety of piping materials and can accommodate thermal expansion and alignment variations.
• Multiple Pressure Ratings – Available in 6, 10, 16, 25, and 40 bar DIN ratings, as well as ASME pressure classes up to Class 1500.
• High-Quality Construction – Manufactured in stainless steel and carbon steel, with raised face options for improved sealing.

Typical Dimensions

• Nominal Sizes: DN 10 to DN 1000 (DIN) / ½” to 24” (ASME)
• Raised Face Thickness: Varies by class and size
• Bolt Circle & Hole Patterns: As per DIN 2559 / ASME B16.5 tables
• Unit: Available in both metric (mm) and imperial (inch) dimensions

Applications

• Low-pressure water and air lines
• Fire protection piping
• HVAC systems
• Process pipelines in chemical, oil & gas, and manufacturing industries
• Temporary or test piping systems