Alloy Steel A182 Threaded Elbow Dimensions

Full Coupling: Both ends of the full thread coupling are threaded. Half Coupling: One end of a half thread coupling is threaded and the other end is welded.

ASTM A182 F316 is a popular grade for stainless steel in American Standard.Stainless steel fittings are popular because of the an-ti corrosive function.Stainless steel pipe fittings can used over 50 years.

The equal cross is one kind of the pipe cross,  the equal cross means all the 4 ends of the cross are in same diameter.
The reducing cross also is called unequal pipe cross , it is the pipe cross which the four branch ends are not in the same diameters.

Threaded pipe fittings provide permanent welded connections for pipes. Threaded joints probably represent the oldest method of joining piping systems. Same as Socket Weld fittings, threaded fittings are mainly used for small pipe diameters (Small Bore Piping); generally, for piping whose nominal diameter is NPS 2 or smaller.
They are available in three pressure ratings: 2000lbs, 3000lbs and 6000lbs.

Pipe Swage Nipple (also known as reducing nipple) is divided into tubing sub and casing sub. Flanging nipple in pipe connection is commonly used with flange.

Steel tee is a T-shaped pipe fitting with three branch pipes. It is used to divide pipes to adjust flow and change direction.

Class 3000 hex head plugs are used in the end of piping systems or equipments to achieve close function.ASTM A182 F304 forged pipe fittings are the most common used stainless steel pipe fittings because of the reasonable price and superior functions.Threaded plugs have 3000lb and 6000lb pressures for customers to choose.

A combination of pipe nipples are recommended for low-pressure discharge and suction service for various compatible liquids and not for compressible products like air, nitrogen or steam. 

The specification of ASTM A182 Forged Pipe Fittings includes forged fittings, stainless steel, rolled alloy, forged alloy, pipe flanges as well as high-temperature service. Later then forgings and hot working, it would be cooled down to a certain temperature before heat treatment.

Threaded Pipe Fittings Specification
Shape: Elbow,Tee, Cross, Coupling, Cap, Swage Nipple, Bushing, Plug, Nipple, Union, Hex Nipple,Threadolet.
Size Range: 1/8″ –  4″ / DN6 – DN100
Pressure Rating: Class 2000lbs, 3000lbs, 6000lbs
Thread Type: NPT, PT, BSPP, BSPT, PF
Standard: ASME B16.11, BS3799, EN 10241, MSS SP-83, MSS SP-97

Thread Types:

NPT  PT  BSPP  BSPT  PF

In small diameter pipes (below DN50), reducing nipples are also often used to replace reducing joints for pipe reducing. Reducing nipples also have concentric and eccentric parts

This makes a 90° branch and comes in full size or reducing for a straight piece of pipe

Carbon Steel A105 Threaded Tee are commonly used carbon steel grade which is used to manufacture forge piping components such as forged fittings and flange of small diameter piping, generally for piping whose nominal diameter is NPS 2 or smaller.

Concentric swage nipple is mainly used for vertical pipeline. eccentric swage nipple is mainly used in horizontal pipelines.

Threaded union is easy to install and disassemble so that it is popular in piping system.Threaded fitting used thread type to connect with pipes,threaded fittings have many pressures:2000,3000,6000.

Threaded Pipe Fittings Specification
Shape: Elbow,Tee, Cross, Coupling, Cap, Swage Nipple, Bushing, Plug, Nipple, Union, Hex Nipple,Threadolet.
Size Range: 1/8″ –  4″ / DN6 – DN100
Pressure Rating: Class 2000lbs, 3000lbs, 6000lbs
Thread Type: NPT, PT, BSPP, BSPT, PF
Standard: ASME B16.11, BS3799, EN 10241, MSS SP-83, MSS SP-97

There are various types of ASME B16.11 socket-welding fittings, such as Elbow, Cross, Tee, Coupling, Half Coupling, Boss, Cap, Union and Sockolet; while ASME B16.11 threaded fittings can be furnished in product forms of Elbow, Cross, Tee, Coupling, Half Coupling, Boss, Cap, plug and bushing.

Flush Bushing: Flush bushing are used in piping systems. They are installed in the pipe to reduce the size of the pipe. Hex Head Bushing: A hex bushing is a threaded fitting with a hex head used to tighten the fitting into a threaded opening.

Concentric BW reducer is a tpye of reducers,there is also eccentric reducer to choose.BW reducers used to reduce the flow of the fluids in the piping system.Stainless steel pipe fittings are popular because the superior functions.SCH 40 and SCH 80 are the commonly used wall thicknesses in butt welded fittings.

Flush Bushing: Flush bushing are used in piping systems. They are installed in the pipe to reduce the size of the pipe. Forged bushing is ideal for use with water and oil in chemical, petrochemical, pulp, paper, shipbuilding, waste incineration, and semiconductor industry applications.

TOE means threaded at one end when translated. Thus, we can say that a nipple TOE is a nipple that has one threaded end.
In this case, we have the acronym TBE for “threaded both ends” which means threaded at both ends. In other words, this is the most typical type of nipple as described above for connecting two parts or fittings with female threading.

The branch pipe stand is also called branch pipe seat, saddle and saddle type pipe joint. Reinforced pipe fittings mainly used for branch pipe connection, instead of branch pipe connection such as reducing tee, reinforcing plate and reinforced pipe section

Thredolet utilizes the basic Weldolet configuration, provides a threaded outlet branch connection. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe

BS3799 F304 Threaded Pipe Fittings are named by its manufacturing forging process and produced according to ASME B16.11, MSS-SP-79\83\95\97 and BS3799 standards.

Especially in high-pressure, high-temperature, large-diameter and thick walled pipes, it is increasingly used, replacing the traditional branch connection method.

What is a treaded nipple,what about its specification and its difference between coupling.