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Slip On Flange

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Professional Team

Our cutting-edge facilities and our highly qualified team of professionals allow us to offer the complete range of forged steel flanges and high-spec forged components. Our product line features the highest standards of quality, productivity and reliability. 

Quality Control

Our elite sales staff and our veteran machinists work together to ensure that the highest quality of care is implemented in every stage of creating each precision engineered flange that leaves our shop.

Advanced Equipment

We have 2000 square meters of storage and processing center which covered equipment using in slitting, cutting in horizontal, laser cutting, plasma and grinding machine and embossing machine.

Custom Service

We offer a range of value-added services, including custom fabrication and assembly, to enhance our clients experience.

 

What is Slip On Flange

 

 

Slip-on flanges, also known as 'hubbed flanges', have a hub with a very low profile. This type of flange is usually connected to a pipe by one or two fillet welds (one outside the flange and one inside the flange), it is however possible to use only a single weld.

Benefits of Slip On Flange

Easy to install and remove

Slip-on flanges are a type of flange that is easy to install and remove. This is because they are designed to be installed and removed in a matter of minutes.

Versatility

This type of flange is suitable for all types of pipes, from pvc to steel. They can be used for domestic, industrial, or commercial purposes.

Slip-on flanges are also more cost effective than other types of flanges because they do not require welding or any other special tools to install them.

6 Weld Neck Flange
4 Weld Neck Flange

Easy to install

The slip-on flange is easy to install and it can be fitted onto the pipe in a matter of minutes. This is more convenient than other types of flanges as they require more time and expertise to install.

Cost-effective

Slip-on flange can provide a cost-effective solution for joining or connecting components in various applications. Compared to other methods of joining, such as welding or threading, flanges can offer cost advantages in terms of ease of assembly, disassembly, and maintenance. Flanges also allow for flexibility in component interchangeability and modification, which can result in cost savings in the long term.

What are the Applications of Slip On Flange

 

 

They are mainly used for fluids at low pressure or with little risk of leakage. It is very common to find these flanges today in cooling water lines, firefighting water lines, low-pressure compressed air lines, and process lines for substances such as steam, oil, gas, condensates, etc.

Types of Slip On Flange
Weld Neck Pipe Flanges
Stainless Steel Slip On Flange
6 Weld Neck Flange
4 Weld Neck Flange

Ansi 16.5b slip on flange
The slip on flange is a part that connects pipes with each other and is connected to the pipe end. There are holes on the welding flange, and the bolts make the two flanges tightly connected. Seal with gasket. Welded flange is a kind of disk-shaped parts, which is the most common in pipeline engineering.

 

304 316 310 ss slip on flange
The slip on flange has good sealing performance, space saving and good quality. It can not only prevent water leakage of the joint, but also reduce the diameter of the seal. Therefore, flat welding flange is a good pipe fitting to save space and cost during construction.

 

Carbon slip on flange
Carbon slip on flange refers to a kind of flange connected with the vessel or pipeline by fillet weld. It is an arbitrary flange. During the design, according to the integrity of the connection between the flange ring and the straight cylinder section, it shall be checked according to the integral or loose flange.

 

Pn10 pn16 slip on flange
304 stainless steel flat welding flange welding device is easy to align, and the device is simple and convenient;it is widely used in many industries, such as metallurgy, machinery, chemical industry, petroleum, machine tool, water conservancy, construction, engineering, shipbuilding, environmental protection, coal, agricultural machinery, food, boiler and pressure vessel, etc.

 
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Components of Slip On Flange

Slip-on flanges (SOF) are crucial in piping installations and pipeline systems as they create a secure joint between two pipes. These flanges comprise four elements: the body, neck, face, and hub. The body functions as a foundation for containing pressure, whereas the face makes up the joint between the pipes.

Material of Slip On Flange

Slip On Flanges are made of various materials, including stainless steel, carbon steel, and alloy steel. These materials provide high strength, durability, and resistance to corrosion, making them suitable for use in harsh environments.

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Process of Slip On Flange

The process begins by slipping the flange onto the end of the line, ensuring the flange's inner diameter matches the pipe's outer diameter. This allows for a smooth transition and maintains a consistent flow path. Once the component is positioned correctly, it is then welded to the pipe.

Product features of Slip On Flange

This Slip On Flange is a low-cost and easy-to-install flange, made of high-quality metal materials with high strength and perfect toughness. It is widely used in pipeline applications and has good performance, which has undergone strict quality inspection before leaving the factory. Its surface is smooth and smooth, and it has undergone anti-rust treatment, so that it will not rust easily in many years of use, so it does not need to be replaced frequently. In addition, it is easy to align and the device is simple and convenient, being widely used in metallurgy, machinery, chemical industry, petroleum and other industries.

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Maintenance Tips for Slip On Flange

 

Weld Neck Pipe Flanges

 

01

Align and tighten the flanges properly

The final step to maintain and clean your exhaust flanges is to align and tighten them properly after cleaning or replacing them. You need to align the flanges so that they are parallel and flush with each other, and that they match the shape and direction of the pipes. You also need to tighten the bolts evenly and gradually, using a torque wrench or a socket wrench, to create a secure and leak-free seal. 

Weld Neck Pipe Flanges

 

02

Choose the right flange type and size

The first step to maintain and clean your exhaust flanges is to choose the right type and size for your vehicle and exhaust system. There are different types of flanges, such as flat, donut, ball and socket, and three-bolt, each with its own advantages and disadvantages.

Weld Neck Pipe Flanges

 

03

Inspect and replace the flange gaskets

The flange gaskets are the rubber or metal seals that go between the flanges and the pipes to create a tight and leak-free connection. They are exposed to high temperatures, pressure, and vibrations, so they can wear out, crack, or blow out over time.

 
Stainless Steel Slip On Flange

 

04

Clean and lubricate the flange bolts

The flange bolts are the metal fasteners that hold the flanges and the gaskets together. They are also subject to corrosion, rust, and seizing, which can make them hard to remove or tighten. You need to clean and lubricate the flange bolts regularly to prevent them from getting stuck or breaking.

How to Choose Sliding Sleeve Flange

 

Types
It is often easy to spot the flange type by the way it looks. First, you must classify the top of the flange by deciding whether the flange has a socket weld, flat flange, lap joint, threaded bore, welded neck, groove, and tongue flange. Next, the bottoms are identified with the evaluation of whether they have a flat face, which is entirely flat, or a raised face which is a slightly raised section on the face of the flange.

All of this information is usually defined by the stamping on the outside diameter of the flange, provided this has not been completely painted over. It is important to keep an archive of your assembly components for future reference and maintenance.

 

Size
The flange size consists of factors that include the standard used (: JIS-Japanese International Standard, ANSI-American National Standards Institute, and DIN-Deutsches Institut für Normung / European), the pressure level needed, and the actual overall outside diameter and thickness of the flange. Other factors in determining the full call-out include the number of bolt holes, outer diameter, inner diameter, bolt circle, and bolt hole diameter, but the nominal pipe size is typically universal.

 

Thickness
Depending on the flange thickness, it can be determined how high a pressure flange can handle, in any applicationthicker flanges can resist high pressures.

 

Bolt holes
Bolt holes help to measure the flange size and pressure class. The actual size of the bolt holes, the pitch circle diameter, and the number of bolt holes on the flange are three factors that need to be addressed. If the bolt is stronger and thicker, it can often correlate with higher pressure capabilities.

 

Standards
There are a lot of industry-defined standards from which you can choose the flanges. So the flanges help to choose based on the standard and application of the product. You can connect it to the three primary standards previously mentioned, including DIN, ANSI, and JIS.

 

Pressure class
Pressure class signifies the marginal pressure level under which the flange can safely function and sustain. Each standard comes with several pressure levels available, from high-pressure to low-pressure tolerance. The pressure levels of products connected to the flanges must be the same as those of valves and pipes in service. The most common industry pressure class is the modern ASME 150# per B16 spec.

How do Slip-On Flange Connections Work?

 

 

A slip on flange connection is an assembly involving two pieces of equipment, pipes or pipe fittings, two flanges, flange mats, and bolts. Different types of washers are also used with the flange connection to secure the connection.

Besides, a slip on flange connection culminates in joining two materials using inner and outer lip parts or flanges. For each of the opposing flange faces to form a seal, force (gasket compression or sealing pressure) must be exerted and maintained. To ensure flanges stay in place, they are often bolted with a gasket between the flange faces to form a tight seal. One of the gaskets often used for this sealing is a disk spring, which is a type of spring.

 

 
Sliding Sleeve Flange Parts Processing Technology

 

1

Material Selection
Picking the right flange materials is the first stage in the machining process. The most popular materials for making flanges are alloy steel, carbon steel, or stainless steel. However, the ideal material often depends on the application's temperature, pressure, and corrosion resistance needs.

 

2

Material Cutting and Shaping
Following selection, the material is sliced and formed. Big metal plates are cut into smaller pieces to get the right size for the flange. The produced parts are then heated to the proper temperature to prepare them for further processing.

 

3

Heat Treatment
Depending on the material and purpose of a flange, the flanges may undergo heat treatment methods such as annealing, quenching, or tempering. Heat treatment boosts the flange's mechanical properties while enhancing its resilience, toughness, and resistance to wear and corrosion.

 

4

Forming and Forging
The heating process makes the metal components malleable, facilitating the proper flange shape development. Machinists utilize different methods to forge the flange, including hot forging and cold forging. The metal is formed at room temperature in cold forging, while hot forging involves forming heated material/metal under high pressure.

 

5

Machining
After the initial cutting and shaping, the flange is machined to achieve precise tolerances and to refine its dimensions. This operation includes facing sealing surfaces, chamfering edges, and drilling holes for bolt connections. CNC (Computer Numerical Control) machines are often used for automated and precision machining.

 

6

Surface Finish
Flanges might undergo surface finishing operations like grinding or polishing to achieve the desired smoothness, remove surface defects, and improve their overall look.

 

7

Inspection and Quality Control
Quality control is an important stage in the production of flanges. Flanges undergo a thorough examination process to ensure they comply with the appropriate norms and specifications. Inspecting for quality control includes measurement inspections, finishes and surface analyses, and non-destructive testing methods like ultrasound or magnetic particle analysis.

 

 
Our Factory

 

Shandong Daye Pipes Co., Ltd. was established in 2006, as a professianl company with combined service covering trade and processing of stainless steel coil, sheet, rod ect, supported by ready stocks to meet requirements of prompt shipment.With years growth, we had achieved strategic cooperation with many stainless steel mills, including TISCO, BAOSTEEL, POSCO(ZPSS) and others prime grade.

productcate-500-500
productcate-500-500
productcate-500-500

 

 
FAQ

 

Q: What is slip on flange?

A: Slip-on flanges, also known as 'hubbed flanges', have a hub with a very low profile. This type of flange is usually connected to a pipe by one or two fillet welds (one outside the flange and one inside the flange), it is however possible to use only a single weld.

Q: What is the difference between slip on and SW flange?

A: Socket welded flange shape is similar to slip on flange, differently it has a shoulder at the inner bore. Slip On Flange - No shoulder at inner bore. Socket weld flange static strength is equal to slip on flange, but it's fatigue strength is 50% higher than the double welded slip on flange.

Q: What is the difference between a lap flange and a slip on flange?

A: lap joint flanges are very similar to a slip-on flange, with the main difference being that it has a curved radius at the bore and face to house a lap joint stub-end. Lap joint flanges and stub-end assemblies are typically used in situations where frequent dismantling is required for for inspection.

Q: What is a slip on plate flange?

A: 17 Jul 2023, posted by Admin. Slip On Flanges are flanges slipped over the end of pipes and then welded in place. Flanges are widespread in low-pressure applications owing to their ease of installation.

Q: What are the limitations of slip on flange?

A: Compared with weld neck flanges, slip-on flanges have heavy welding loads and can't withstand high temperatures and high pressures, repeated bending and temperature fluctuation. Advantages: The weld neck flange is not easy to deform. And it has good sealing and a wide range of applications.

Q: What is the difference between slip on flange RF and FF?

A: Flat face (FF) flanges are similar to the RF flanges, but they do not have the raised area like the RF flange. Instead, the whole surface is flat. That means that the gasket used with the FF flange has full contact with the whole surface where two flanges are mated.

Q: What materials are used in slip on flanges?

A: The Slip On pipe flanges include materials carbon steel slip-on pipe flanges, stainless steel slip on pipe flanges and alloy steel slip on pipe flanges available in various class such as 150 LBS, 300 LBS, 600 LBS, 900 LBS. These flanges are ideal for low pressure applications.

Q: What is the hub of a slip on flange?

A: A slip-on hub flange has an additional structure called “hub” in order to bear higher pressure. The slip-on hub flange is often used for higher pressure and/or larger diameter pipes than the slip-on flange without the hub.

Q: What is the most commonly used flange?

A: The Weld Neck flange is the most commonly requested flange. It features a neck extension with a tapered hub, a 37.5-degree bevel, and a 1/16” landing at the point of the weld. This will butt directly onto another pipe with a similar level, where it will be welded together with a 75-degree weld.

Q: What does FF mean in flange?

A: Flat face (FF) flanges are similar to raised face flanges, but they have a flat surface. These flanges have a gasket surface in the same plane as the bolting circle face. The flat face is the simplest type of flange face available.

Q: How much gap do you need for a slip on flange?

A: With the static strength equal to the slip-on flanges, the fatigue strength is considered to be somewhere around 50% greater than double-welded slip-on flanges. Before welding, a space of between 1/16” and 1/8” must be created between the flange or pipe and fitting.

Q: Are slip on flanges welded?

A: Slip on Flange is essentially a ring that is placed over the pipe end, with the flange face extending from the end of the pipe by enough distance to apply a weld bead on the inside diameter. The OD of slip on flange is also welded on the back side of the flange.

Q: Why is it called a slip on flange?

A: Slip-on (SO) flanges are a type of flange that has a flat face on the sealing surface and are typically used in low-pressure applications. They are called “slip-on” because they can be easily slipped onto the end of a pipe or fitting and then welded in place.

Q: What is the difference between slip on and SW flange?

A: Socket welded flange shape is similar to slip on flange, differently it has a shoulder at the inner bore. Slip On Flange - No shoulder at inner bore. Socket weld flange static strength is equal to slip on flange, but it's fatigue strength is 50% higher than the double welded slip on flange.

Q: How far to insert a pipe into a slip on flange?

A: The slip-on flange is positioned so the inserted end of the pipe or fitting is set back or short of the flange face by the thickness of the pipe wall plus 1/8 of an inch. This allows for a fillet weld inside the SO flange equal to the thickness of the pipe without doing any damage to the flange face.

Q: What are the components of a slip on flange?

A: Slip-on flanges (SOF) are crucial in piping installations and pipeline systems as they create a secure joint between two pipes. These flanges comprise four elements: the body, neck, face, and hub. The body functions as a foundation for containing pressure, whereas the face makes up the joint between the pipes.

Q: What materials are used in slip on flanges?

A: The Slip On pipe flanges include materials carbon steel slip-on pipe flanges, stainless steel slip on pipe flanges and alloy steel slip on pipe flanges available in various class such as 150 LBS, 300 LBS, 600 LBS, 900 LBS. These flanges are ideal for low pressure applications.

Q: What is the hub of a slip on flange?

A: A slip-on hub flange has an additional structure called “hub” in order to bear higher pressure. The slip-on hub flange is often used for higher pressure and/or larger diameter pipes than the slip-on flange without the hub.

Q: What is the difference between slip on flange RF and FF?

A: Flat face (FF) flanges are similar to the RF flanges, but they do not have the raised area like the RF flange. Instead, the whole surface is flat. That means that the gasket used with the FF flange has full contact with the whole surface where two flanges are mated.

Q: Can you weld an elbow to a slip on flange?

A: You Can Weld A Slip On Flange To A 90 Degree Elbow? Yes you can. The slip-on flanges have a groove that will allow for welding and it's not a problem at all! It is an excellent choice for a quick fix or temporary solution.

As one of the leading slip on flange manufacturers and suppliers in China, we warmly welcome you to wholesale cheap slip on flange from our factory. All custom made products are with high quality and competitive price. Contact us for more details.

ANSI 16.5b Slip On Flange, Stainless Steel Slip On Flange, ANSI 16 5b Slip On Flange

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