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Description:
Pipe fittings are made in accordance with ASME B16.11, MSS-SP-79\83\95\97, and BS3799 standards. Forged pipe fittings are used to build connection, between nominal bore schedule pipe and pipelines. They are supplied for extensive application range, such as chemical, petrochemical, power generation and OEM manufacturing industry. Forged pipe fittings are typically available in two materials: Steel (A105) and Stainless Steel (SS316L) with 2 series of pressure rating: 3000 series and 6000 series. The brand for pipe fittings is Both-Well, equivalent to ULMA, JD, and IML. End connections of fittings are required to comply with pipe ends, either socket weld to plain end, or NPT to threaded end. Different end connection such as socket weld x threaded can be customized upon request. |
Brand:
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LITERATURE
Product Information of Forged Pipe Fittings
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1. Introductions:
Forged Pipe Fittings (Socket Weld and Threaded) are made in accordance to ASME (American Society of Mechanical Engineers) B16.11, MSS-SP-79\ 83\ 95\97 and BS3799 standards, and are used to connect nominal bore schedule pipes and pipelines. A forged pipe fitting has been of excellent quality due to its high pressure resistance and high durability. The applications range from chemical, petrochemical, food and beverage, power generation, pharmaceutical and OEM manufacturing industry as well other applications where vibration, high pressure or extremely corrosive conditions exist. |
Pipe Fittings
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2. Material:
Forged pipe fittings are generally available in two materials: Carbon Steel (ASTM A105 material spec), and Stainless Steel SS316 (ASTM A182 material spec). The surface of carbon steel A105 forged pipe fittings may be further reinforced against corrosion through galvanizing. This is an optional add-on which customers may include at an additional cost upon request.
Each fitting will be properly marked with the required identification by stamping marking on the collar part. Thus, this enables the ease of users to recognize the specification and to assure that the system runs smoothly. The carbon steel (A105) material is unlabeled since it is a standard material grade. Nevertheless, other materials, such as stainless steel, are indicated on the body in open areas. The following items are included in the marking:
Forged pipe fittings are generally available in two materials: Carbon Steel (ASTM A105 material spec), and Stainless Steel SS316 (ASTM A182 material spec). The surface of carbon steel A105 forged pipe fittings may be further reinforced against corrosion through galvanizing. This is an optional add-on which customers may include at an additional cost upon request.
Each fitting will be properly marked with the required identification by stamping marking on the collar part. Thus, this enables the ease of users to recognize the specification and to assure that the system runs smoothly. The carbon steel (A105) material is unlabeled since it is a standard material grade. Nevertheless, other materials, such as stainless steel, are indicated on the body in open areas. The following items are included in the marking:
- Specification Standard
- Working Pressure
- Class Pressure
- Heat Number
- Manufacture Trademark
- Material Identification
- Fitting Size
- Country of Origin
3. Pressure Rating & Size Range:
Fittings come in a variety of classes and material grades for any application. The fittings are available in class 3,000 and 6,000. Although class 2,000 and 9,000 fittings exist, these are rarely used and class 3,000 and 6,000 remain the more common class of fittings used. Sizes of forged fittings typically range from 1/8” to 4”. And reducing sizes are available for common parts like couplings, tees, hex bushings and nipples.
Fittings come in a variety of classes and material grades for any application. The fittings are available in class 3,000 and 6,000. Although class 2,000 and 9,000 fittings exist, these are rarely used and class 3,000 and 6,000 remain the more common class of fittings used. Sizes of forged fittings typically range from 1/8” to 4”. And reducing sizes are available for common parts like couplings, tees, hex bushings and nipples.
Class 3000 vs 6000 fittings
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4. Connection Types:
Class 3,000 and 6,000 forged pipe fittings come in two types of connection: Socket Weld, or Threaded. NPT (National Pipe Thread) is the most common thread type although BSPP (British Standard Pipe Parallel thread) is also available for certain parts like Full Couplings, Hex Bushings and Hex Nipples. Socket weld connection is significantly more popular than threaded since most applications call for completely sealing off a line and eliminating all possibility of leakage. The fittings are normally produced with the same connection for all sides of the same fitting. That means, a socket weld fitting will have socket weld connection on all sides. Should different connection ends be required, additional machining could be possible but at a higher cost and a longer lead time. i.e. Socket weld x Socket weld x NPT Tee. |
5. Types of Pipe Fittings:
When it comes to system customization, there are many different types of fittings available. For instance, 90D elbow, 45D elbow, straight coupling, 3-piece union, 3-way tee, hex nipple, end cap, end plug and so on.
The 3-way tee is shaped like an alphabet "T" and has one inlet and two outlets. It was used to combine flow from two inlets into a single outlet. The reducer is a component that aids in the reduction of flow size from larger to smaller. The following table displays the types of pipe fittings and it compatible connection types:
When it comes to system customization, there are many different types of fittings available. For instance, 90D elbow, 45D elbow, straight coupling, 3-piece union, 3-way tee, hex nipple, end cap, end plug and so on.
The 3-way tee is shaped like an alphabet "T" and has one inlet and two outlets. It was used to combine flow from two inlets into a single outlet. The reducer is a component that aids in the reduction of flow size from larger to smaller. The following table displays the types of pipe fittings and it compatible connection types:
No |
Type of Fittings |
Connection |
1 |
Straight Coupling |
Female x Female |
2 |
90D / 45D Elbow |
Female x Female |
3 |
3 Way Tee |
Female x Female x Female |
4 |
3 Piece Union |
Female x Female |
5 |
End Cap |
Female |
6 |
90D / 45D Street Elbow |
Female x Male |
7 |
Hex Plug |
Male |
8 |
Hex Nipple |
Male x Male |
9 |
Hex Bush |
Female x Male |
10 |
Half Coupling |
Female |
6. Differences between 3M and 6M pipe fittings:
The 3000 and 6000 class pressures will be labelled as 3M or 6M, respectively, where M stands for 1000. 3M is referring to 3000 lbs fittings, which can resist up to 3000 PSI (206 Bars) of pressure. Forged pipe fittings with pressure classes of 2000, 3000, 6000, and 9000 are available. However, Class 3000 and 6000 are the most frequent pressure classes used in applications.
The 3000 and 6000 class pressures will be labelled as 3M or 6M, respectively, where M stands for 1000. 3M is referring to 3000 lbs fittings, which can resist up to 3000 PSI (206 Bars) of pressure. Forged pipe fittings with pressure classes of 2000, 3000, 6000, and 9000 are available. However, Class 3000 and 6000 are the most frequent pressure classes used in applications.
Description |
3000 PSI (3M) |
6000 PSI (6M) |
Body Size |
Smaller |
Bigger |
Thickness |
Thinner |
Thicker |
Unit Weight |
Lighter |
Heavier |
Working Pressure |
Lower |
Higher |
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7. Brands of Forged Fittings:
A highly recommended manufacturer for forged fittings is Both-Well Steel Fittings Co., Ltd. Both-Well Steel Fittings Co., Ltd was established in 1985 in Taiwan, and has been well-recognized among customers worldwide for excellence in its quality and services. Both-Well Quality Management System has been certified with ISO 9001:2000, PED, together with all major internationally-recognized certificates and also being listed on the Approval Supplier List of major domestic refineries, petro-chemical factories in Taiwan. |
S/W x S/W x NPT TEE
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8. Way to Join A Threaded Pipe:
The end of the connection can be threaded or socket weld for pipe fittings. NPT thread is the most commonly used connection in installation because the tapered thread aids in the creation of greater seals. Both the female and male threads compress and wedge together. Besides, BSP parallel thread is also accessible for straight normal connections such as full coupling, hex nipple, and hex plug. If threaded fittings are utilized for system installation, a male threaded pipe end is required.
On the other hand, welding is another alternative technique to connect both the fitting and the pipe. Before welding, the plain end pipe will be inserted into a recessed part of fittings. All end connections on standard fittings have the same connector. However, some customized projects may necessitate the use of a special fitting design, such as one threaded end and one socket weld full coupling fittings. It is available upon customers’ requests.
When the fitting is connected to the pipe, the schedule pipe corresponding to each pressure class of fittings is created to produce an efficient system application using the maximum amount of material resources available.
The end of the connection can be threaded or socket weld for pipe fittings. NPT thread is the most commonly used connection in installation because the tapered thread aids in the creation of greater seals. Both the female and male threads compress and wedge together. Besides, BSP parallel thread is also accessible for straight normal connections such as full coupling, hex nipple, and hex plug. If threaded fittings are utilized for system installation, a male threaded pipe end is required.
On the other hand, welding is another alternative technique to connect both the fitting and the pipe. Before welding, the plain end pipe will be inserted into a recessed part of fittings. All end connections on standard fittings have the same connector. However, some customized projects may necessitate the use of a special fitting design, such as one threaded end and one socket weld full coupling fittings. It is available upon customers’ requests.
When the fitting is connected to the pipe, the schedule pipe corresponding to each pressure class of fittings is created to produce an efficient system application using the maximum amount of material resources available.
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The table above is a guide to pipe schedule thickness. Nevertheless, there is no compulsory in restricting the pipe schedule and fitting class pressure . The application pressure design, as well as any applicable additional factors such as corrosion, threaded depth, surrounding temperature, and environment factor, must all be considered when determining the minimum pipe wall thickness.
For more information about ASTM B16 standards, please refer to en.wikipedia.org/wiki/B16_Standardization |
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Product Catalogue in pdf:
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Product Literature in pdf:
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FAQ Of Forged Pipe Fittings
What is the size range of forged pipe fittings?
The size range of forged pipe fittings is from 1/8 inches to 4 inches.
What is the pressure class of forged pipe fittings?
The pressure class of forged pipe fittings available are 3,000 psi and 600 psi.
What is the brand of forged pipe fittings?
The brand of forged pipe fittings is Both-well, Taiwan.
What are the specifiction standards of forged pipe fittings?
Forged pipe fittings are manufactured in compliance with ASME B16.11, MSS-SP-79839597, and BS3799 specifications.
What do the measurements 3m and 6m on pipe fittings mean?
The class pressures 3000 and 6000 will be labelled as 3M or 6M, respectively, where M stands for 1000.
What are the types of forged pipe fittings?
Fittings come in a variety of types, including 90D elbows, 45D elbows, straight couplings, 3 piece unions, 3 way tees, end caps,
end plugs, hex nipples, and so on.
end plugs, hex nipples, and so on.
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