How to Choose the Right Slip-On Flange?

Author: May

Dec. 31, 2025

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Choosing the right slip-on flange can be a bit challenging. Yet, making the right choice is crucial for your piping system's performance and longevity. Here’s a straightforward guide to help you select the best slip-on flange.

For more information, please visit Slip-On Flange.

Understand What Slip-On Flanges Are

A slip-on flange is a type of flange that slips over the pipe’s end. It’s often used in low-pressure applications.

“So, what makes them special?” you might ask. They are easy to install and require minimal preparation. This makes them a popular choice among many engineers and technicians.

Selecting the Right Material

The first step is to choose the right material. Slip-on flanges come in various materials such as:

  1. Carbon Steel: Ideal for general applications.
  2. Stainless Steel: Best for corrosive environments.
  3. Alloy Steel: Suitable for high-strength requirements.

Consider your project’s requirements before making a decision. “Do you need corrosion resistance?” or “Is weight a factor?” These questions help narrow down your options.

Size Matters!

Size is another important consideration. You need to ensure the slip-on flange matches the pipe size. “But how do I measure that?” It’s simple! Measure the pipe’s diameter and match it to the flange's specifications.

Additionally, verify the following dimensions:

  • Nominal Pipe Size (NPS)
  • Schedule and wall thickness

Pressure Ratings

Different applications have different pressure requirements. Therefore, understanding pressure ratings is essential. Slip-on flanges typically come in various pressure classes, such as:

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  1. 150 psi
  2. 300 psi
  3. 600 psi

“Do you need a high-pressure system?” Make sure to choose a flange that can withstand the demands of your environment.

Welding Requirements

Welding is often necessary for secure connections. Slip-on flanges feature a beveled edge, which makes welding easier. “But, how much welding do I need?” A full penetration weld is often recommended for maximum strength.

Check for Standards and Certifications

Always look for industry standards and certifications. This ensures the quality and reliability of your slip-on flange. Flanges must meet standards from organizations like:

  1. ASTM
  2. ANSI
  3. ASME

“Why is this important?” Because meeting these standards guarantees safety and performance.

Evaluate the Supplier

Choosing a reputable supplier is vital. A quality supplier will offer warranties and support. “How do I find one?” Look for reviews and recommendations in your industry.

Conclusion

Choosing the right slip-on flange involves considering various factors. From material selection to pressure ratings, each aspect plays a critical role. Make informed choices for the best results.

If you have more questions or need assistance, feel free to contact us. We are always here to help you. Let’s find the perfect slip-on flange for your project together. Reach out to us today!

Link to Haihao Group

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