Slip On Flange Manufacturer
- Easy Installation
- Double Welding
- Cost-effectiveness
- Versatility
High Quality Slip On Flange
Slip on flanges are widely used in various piping systems because of their easy installation, high cost-effectiveness, and broad applicability. They are particularly suitable for low-pressure and medium-pressure applications.
SSM offers a variety of slip-on flanges covering different sizes, pressure ratings, connection surface types, and materials to meet the needs of various customers.
- Size: 1/2″ to 48″
- Pressure Rating: Class 150, 300, 600
- Joint Type: Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
- Material: Carbon steel, stainless steel, nickel alloy, duplex stainless steel, aluminum, copper-nickel alloy
What is a Slip On Flange
A slip on flange, also known as an SO flange, provided by SSM, is a flange that can be slid onto the end of a pipe and connected by welding. Its shape features a hole with an inner diameter slightly larger than the outer diameter of the pipe, allowing the flange to be slid onto the end of the pipe.
Slip-on Flange Cross Section
Advantages of Slip on Flanges
Cost-effectiveness
Slip-on flanges offer a cost-effective solution without compromising essential functionality, making them suitable for a variety of applications where budget constraints are a consideration.
Versatility
Double welding inside and outside provides good sealing and mechanical strength, there is no need to insert the end of the pipe into the flange during installation, reducing welding stress.
Double Welding
it can adapt to various pipe sizes and materials, has high flexibility, is suitable for low-pressure and medium-pressure systems, and is widely used in water treatment, chemical, and petrochemical industries.
Easy Installation
it can slide directly to the end of the pipe, the installation process is simple, precise alignment is not required, and the position can be adjusted during installation to reduce installation errors and improve work efficiency.
Slip On Flange By Materials
Stainless Steel Slip On Flange
- ASTM A182 F304/F304L
- ASTM A182 F316/F316L
- ASTM A182 F321
- ASTM A182 F347
Nickel Alloys Slip On Flange
- ASTM B564 Monel 400
- ASTM B564 Inconel 600/625/718
- ASTM B564 Incoloy 800/800H/825
- ASTM B574 Hastelloy C276/C22
One-Stop Flange Provider for All Your Needs
SSM has significant product advantages in manufacturing slip on flanges. Whether it’s quality or price, we will meet your needs.
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Additional information on Slip On Flange
Slip-on flange is one of the most commonly used flanges. Please continue reading for information on flange size, installation, and more.
Installation Process of Slip-On Flange
The installation process of the slip-on flange is relatively simple, but specific steps and precautions must be followed to ensure the reliability and safety of the connection. The following are the installation steps and precautions for the slip-on flange:
Installation Steps
STEP 1: Preparation
- Check the Flange and Pipe: Ensure that the flange and pipe, especially the sealing surface and welding area, are not damaged, deformed, or defective.
- Cleaning: Clean the end of the flange and pipe to remove all grease, dirt, and impurities.
STEP 2: Cut the Pipe
- Measure and Mark the Cutting Position: Measure and mark the cutting position of the pipe according to the installation needs.
- Cut the Pipe: Use a suitable tool (such as a pipe cutter) to cut the pipe to the required length. Ensure the cut surface is flat and free of burrs.
STEP 3: Slip Flange
- Slide the Flange onto the Pipe: Slide the slip-on flange onto the end of the pipe, ensuring that the distance between the flange and the end is about half the thickness of the flange.
STEP 4: Alignment and Positioning
- Align the Flange and Pipe: Adjust the position of the flange and pipe so that they are aligned. Use a gasket or alignment tool to ensure the flange and pipe are on the same axis.
- Temporary Fixation: Use a clamp or bracket to fix the flange to temporarily prevent movement during welding.
STEP 5: Welding
- Welding Inside: First, weld on the inside of the flange and pipe. Ensure the weld is even and firm.
- Welding Outside: After completing the inside welding, weld on the outside of the flange and pipe. Ensure the weld is even and firm again.
STEP 6: Inspection
- Visual Inspection: Inspect the weld to ensure no cracks, pores, or other defects.
- Pressure Test: Perform a pressure test as needed to ensure no leakage at the connection.
Precautions
- Welding Quality: Welding is key to ensuring the reliability of the slip-on flange connection. Welding should be performed by experienced welders using appropriate welding methods and materials.
- Alignment: Ensure the flange and pipe are on the same axis to avoid stress concentration and potential leakage problems.
- Cleaning: Ensure the ends of the flange and pipe are clean and free of grease and dirt before welding to obtain good welding quality.
- Safety: Follow all safe operating procedures during cutting and welding, and wear appropriate personal protective equipment (PPE).
Slip-on Flange vs. Weld Neck Flange
| Feature | Slip-on Flange | Weld Neck Flange |
| Design | Slip-on over the end of the pipe and welds both inside and outside | Welds directly to the pipe, with a tapered neck for alignment |
| Strength | Generally lower strength compared to weld neck | Higher strength due to continuous weld and tapered design |
| Cost | More economical due to simpler design | Higher cost due to complex design and longer manufacturing time |
| Pressure Rating | Suitable for low to medium pressure applications | Suitable for high pressure and high temperature applications |
| Application | Common in low-pressure systems, simple installations | Preferred for high-pressure systems and critical applications |
Slip-on Flange vs. Lap Joint Flange
| Feature | Slip-on Flange | Lap Joint Flange |
| Design | Slides over the pipe and is welded both inside and outside | Consists of a flange and a loose backing flange, which fits over a stub end |
| Alignment | Can be prone to misalignment during installation | Allows for easier alignment and adjustment, due to the loose backing flange |
| Cost | Generally less expensive than lap joint flanges | Typically more expensive due to additional components and complexity |
| Application | Used for standard applications with less precise alignment needs | Ideal for systems where alignment is difficult or where frequent disassembly is needed |
Slip-on Flange vs. Lap Joint Flange
| Feature | Slip-on Flange | Socket Weld Flange |
| Design | The pipe slips over the end of the flange and is welded both inside and outside | The pipe is inserted into a recessed area of the flange before welding |
| Strength | Typically provides less strength compared to socket weld flanges | Generally provides a stronger and cleaner weld connection than slip-on flanges |
| Cost | More economical due to simpler design and manufacturing | Higher cost due to more precise machining and welding process |
| Application | Common in low to medium pressure applications, and easier to install | Used in high-pressure and high-temperature applications where strength is critical |
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