Views: 168 Author: Site Editor Publish Time: 2022-12-29 Origin: Site
When we talk about “ANSI/ASME B16.11 forged fittings”, usually it refers to two kinds of pipe fittings that socket weld and threaded. Forged pipe fittings are made from solid blocks of steel, and machined to the final shapes as above standard. Shanghai Zhucheng manufacturer in China offers Class 2000/3000/6000 Threaded Fittings in accordance to standard of ASME / ANSI B16.11, these forged pipe fittings are available in various shapes.
Types of Threaded Pipe Fittings
Generally speaking, ASME/ANSI B16.11 threaded connections are commonly used for small size piping which is smaller than 2 inches. In the majority situation, threaded fittings are used in the plumbing industry. Among them, there are various kinds of thread types like NPT, BSPP, BSPT, PF, PT, MPT. Even though threaded fittings are mostly used for small bore piping connection, in actual order , their size could be up to 4” (NPS 4) sizes and can be customized.
Ranges from usage and functions,ASME/ANSI B16.11 threaded pipe fittings includes Elbow, Tee, Cross, Coupling, Cap, Swage Nipple, Bushing, Plug, Nipple, Union, Hex Nipple,Threadolet.
Threaded Elbow
A threaded elbow is a pipe fitting used to change the direction of a pipe, with threads on one or both ends. It usually consists of an elbow body and a threaded part. The bending part of the elbow body is generally 90° or 45°.
Threaded Tee
Threaded Tee is usually used in some low-pressure small-diameter pipeline systems. It can divide the pipeline into three branches and form a 90-degree angle between the three branches.
Threaded Cross
Threaded Cross is a pipe connector with four openings, usually used to divide the pipe system into four different directions to achieve the diversion of the medium.Threaded Threaded Coupling
The threaded coupling is a simple but important pipe connection fitting. Its main structure is a hollow cylinder with threads inside. The threads at both ends of the couplings are usually of the same specification so that it can be connected to threaded pipes of the same diameter.
Threaded cap
A threaded cap is a pipe fitting used to close the end of a pipe. It is mainly composed of a cap body and a threaded part. The cap body is a hemispherical or flat-top structure with a hollow interior to fit the outer diameter of the pipe. The threaded part is located at the open end of the cap body and is usually machined with internal or external threads, depending on the thread type of the pipe or pipe fitting it matches.
Threaded Bushing
Threaded bushing is a kind of pipe fitting used to connect pipes of different diameters or different thread types. Its main function is to achieve transition connection between pipes.
Threaded Plug
Threaded plug is a pipe fitting used to seal the opening of a pipe. It is installed at the end of the pipe by threaded connection. It is mainly used to seal the end of the pipe to prevent the medium in the pipe from leaking, and plays a role in sealing and protecting the pipe system.
What is ASME B16.11 Standard Scope
ASME B16.11 including pressure-temperature ratings, dimensions, tolerances, marking and material requirements is the standard for forged fittings.This article shows the relevant content in the following table.
Fitting Types/Configuration.
Types of fittings covered by this Standard are shown in Table 6, by class and size range. Fittings shown in Tables 1 through 5 and Tables I-1 through I-5 may also be made with combi-nations of socket-welding and threaded ends.
Special Fittings.
Fittings with special dimensions,threads,or counter bores may be made by agreement between the manufacturer and purchaser.When such fittings meet all other stipulations of this Standard, they shall be considered in compliance therewith, provided they are appropriately marked (see section 4).
Specification of ASME/ANSI B16.11 Threaded Fittings
Shape | Elbow,Tee, Cross, Coupling, Cap, Swage Nipple, Bushing, Plug, Swage Nipple, Union, Hex Nipple,Threadolet. |
Size Range | 1/8" – 4" / DN6 - DN100 |
Pressure Rating | Class 2000, Class 3000, Class 6000, 2000LBS, 3000LBS, 6000LBS |
Thread Type | NPT, PT, BSPP, BSPT, PF |
Material Grades in Carbon Steel, Alloy Steel and Stainless steel
Carbon Steel Threaded Fittings
Grade:ASTM A105 / A105N, ASTM A350 LF2/LF3, ASTM A694 F42 / 46 / 56 / 60 / 65, P235GH, P265GH, P280GH, P355GH
Alloy Steel ANSI B 16.11 Threaded Fittings
Grade: ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22
Stainless Steel Threaded Fittings
Grade: ASTM A182 F304/304L/304H, 316/316L, 321, 310S, 317, 347, 904L, 1.4404, 1.4437
Duplex Stainless Steel
Grade: ASTM A182 F51, F53, F44
Advantages of ASME B16.11 Threaded Fitting Connections
(1) Quick installation.
(2) Suitable for low-pressure applications, leakage integrity is good.
(3) Installation is easy, Special installation skill is not required.
(4) Less force is required for joining.
(5) Parts can be detached.
(6) Economic and cheaper.
Disadvantages of ANSI B16.11 Threaded Connections
(1) Not suitable for high temperature-pressure applications.
(2) Threads may suffer from corrosion in a corrosive environment.
(3) Temperature changes may cause leakage problems.
(4) Fatigue damage can occur for cyclic services.
(5) Strength is less as compared to welding.
Shanghai Zhucheng Pipe Fittings Manufacturing Co Ltd. is a large manufacturer and supplier of pipe fittings in different grades, sizes and types.
We have a large stock ASME/ANSI B16.11 of threaded fittingsthat are available in pressure ratings of class 2000, 3000 and 6000. We are constantly adding to our diverse product range in order to better serve our valued customers.
