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What are Slip-On Flanges? Uses & Types

Welcome to SK Steel Corporation, your trusted Industrial slip on flanges manufacturer & supplier, exporter in India. Our extensive range of Slip on flanges is designed and crafted to meet the highest industry standards, including ASME, ANSI, and DIN. With a strong focus on quality, reliability, and precision, our products are sure to exceed your expectations. We are a trusted and best quality slip on flanges manufacturing company.

What Are Slip-On Flanges?

When it comes to piping systems, flanges are essential parts that are used to connect and disconnect different pipe components. There are several varieties available, each intended to fulfill particular functions and circumstances. We will examine the diverse realm of slip-on flanges, their uses, benefits, and installation techniques in this extensive overview. Additionally, we will introduce you to SK Steel Flange, your reliable supplier of premium slip-on flanges.

Slip-on flanges, often referred to as SO flanges, are a type of flange used to connect pipes, valves, and other equipment to form a piping system. They are popular for their ease of installation, making them a preferred choice for various applications. Here are the key characteristics of slip-on flanges:

Flange Design

Typically, slip-on flanges have a hole that fits over the pipe and are flat. During installation, alignment is made simple by this design.
When attached to another flange or component, their raised face acts as a sealing surface.


In low-pressure situations where strong pressure resistance is not absolutely necessary, SO flanges are utilized.
They are frequently utilized in plumbing, general industrial applications, and water supply.


Slip-on flanges are distinguished by their ability to be welded from the inside out, offering a robust and impermeable connection. The flange is fastened to the pipe and a tight seal is ensured by the welding procedure, which is typically fillet welding.

Advantages of Slip-On Flanges

Slip-on flanges offer several advantages that make them a popular choice in various industries. Let’s take a closer look at these benefits:

Easy Installation

Slip-on flanges are incredibly easy to install, especially for novice plumbers or technicians. Their design allows for simple alignment and welding.


These flanges are typically less expensive than other types, making them a cost-effective choice for low-pressure applications.


SO flanges are compatible with a wide range of pipe materials, including steel, stainless steel, PVC, and more.

Slip-On Flanges

Applications of Slip-On Flanges

Slip-on flanges find application in a variety of industries and sectors. Their versatility and ease of use make them a practical choice for numerous scenarios. Here are some common applications.

Water Supply Systems

Slip-on flanges are commonly used in water supply and distribution systems due to their cost-effectiveness and ease of installation.


In residential and commercial plumbing, slip-on flanges are used to connect pipes, fixtures, and appliances.

Chemical Industry

In chemical processing plants, slip-on flanges are utilized for low-pressure connections in handling various chemicals and fluids.

HVAC Systems

Heating, ventilation, and air conditioning systems often incorporate slip-on flanges for connecting pipes and ducts.

General Industrial Applications

Slip-on flanges can be found in a wide range of industrial settings where low-pressure connections are required.

The Different Types of Slip On Flanges

Certainly! Here are the key features and advantages of Slip On Flanges:

Standard Slip On Flanges: These are the most common type of Slip On Flanges and are widely used in various applications. They have a flat face and are suitable for connecting pipes with compatible dimensions.

Raised Face Slip On Flanges: These flanges have a raised face around the bore, which provides better alignment and helps prevent leaks. They are ideal for applications requiring a more secure connection.

Ring Type Joint (RTJ) Slip On Flanges: RTJ Slip On Flanges are designed with a ring-type joint groove, allowing for a metal gasket to be used for high-pressure and high-temperature applications. They ensure a reliable and leak-proof connection in demanding environments.

Lap Joint Slip On Flanges: Lap Joint Slip On Flanges are used in combination with a stub end to allow easy alignment and rotation of the flange. They are suitable for applications where frequent dismantling is required.

Weld Neck Slip On Flanges: These flanges combine the characteristics of a Slip On Flange and a Weld Neck Flange. They have a raised neck that provides additional reinforcement and facilitates a strong welded connection.

Special Coating Slip On Flanges: Some Slip On Flanges come with special coatings or surface treatments to enhance their resistance to corrosion and wear in challenging operating conditions.

Each type of Slip On Flange has its unique features and advantages, making it suitable for specific applications. Depending on your project requirements and the operating conditions, you can choose the most appropriate type of Slip On Flange from our diverse range at SK Steel Corporation.

Introducing Our Company SK Steel Flange

When it comes to slip-on flanges, quality and reliability are paramount. This is where SK Steel Flange excels. Our company is dedicated to providing high-quality slip-on flanges that meet or exceed industry standards. Here are some reasons why you should choose SK Steel Flange for your slip-on flange needs:

Quality Assurance

To achieve the finest quality goods, we produce slip-on flanges utilizing premium materials and strict quality control procedures.

Wide Range of Options

SK Steel Flange offers a comprehensive range of slip-on flanges in various sizes, materials, and configurations to meet your specific requirements.

Competitive Pricing

We offer competitive pricing without compromising on the quality of our products, making us a cost-effective choice for your projects.


Slip-on flanges are versatile components that play a crucial role in various piping systems. Their ease of installation, cost-effectiveness, and reliability make them a preferred choice for many applications. When it comes to sourcing high-quality slip-on flanges, SK Steel Flange is your trusted partner, offering top-notch products, competitive pricing, and expert support.

By understanding the benefits, applications, and proper installation of slip-on flanges, you can make informed decisions for your piping system needs. Ensure the success of your projects with the reliability and quality assurance that SK Steel Flange provides.

Invest in the right slip-on flanges, and you’ll be one step closer to achieving a robust and efficient piping system. Choose SK Steel Flange for quality, reliability, and excellence in slip-on flanges.

Remember, your piping system’s performance is only as good as the components you choose. Make the smart choice with SK Steel Flange – where quality meets your project’s needs. Contact us today to learn more about our slip-on flange options and how we can support your specific requirements.

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