Threaded Union Threaded Fittings

A234 WPB threaded coupling mainly consists of a main body and thread structures at both ends. The main body is usually cylindrical, and its length varies according to different specifications and usage requirements.

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

Used for all sorts of media: chemical substances, petrochemical products, liquefied gas – especially in loading/unloading applications. There are also couplings intended for highly aggressive chemical substances, lined with ECTFE – a polymer resistant to chemicals.

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

The basic difference between couplings and unions in use is that couplings connect pipes to pipes or pipes to bends.Unions are used to connect and disassemble part of the piping system for maintenance or replacement.

F316 threaded  caps are components used to close the ends of stainless steel pipes or pipe fittings, and achieve the functions of sealing and fixing through threaded connection.

Thread Types:

NPT  PT  BSPP  BSPT  PF

The use of Forged End Pipe Caps is common in many industries such as oil and gas industries, chemical industries and water supply lines.

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

Stainless steel 90 deg threaded elbow is popular because it is easy to install or replace.ASME B16.11 forged fittings are pipe fittings according to American Standard.There are many types fot customers to choose:NPT PT BSPP BSPT PF.

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.

Socket Weld half Coupling is a coupling with a socket weld only at one end, It is usually welded directly to the pipeline to form a branch connection. Coupling for joining a pipe to another of smaller diameter. Straight coupling connects two pipes end-to-end. It is used to supplement the infinite aluminum 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.

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.

BSP Pipe Fittings Specification:
Type: Elbow /Tee /Cross /Coupling /Cap/Union /Nipple /Plug /Bushing
Material: CS/LOW TEMP CS/PIPELINE STEEL/ALLOY STEEL /SS/ DUPLEX SS
Standard: ASME B16.11, BS3799
Size: 1/8IN-4IN/DN6-DN10
Rating: 2000lbs,3000lbs,6000lbs
British Standard Pipe Parallel (BSPP)

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

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

Steel pipe elbow can be divided into 3 types as buttweld, threaded, socket weld in accordance with connection. The material specification are ASTM A234, A182, A403, A105, A694, A350, A420 and A860.

They are concentric and eccentric available, with various ends. The most common types are:

PBE nipple = Plain Both Ends
BBE nipple= Beveled Both Ends
TBE nipple= Treaded Both Ends

hat is a threaded tee,what about its specification and its difference between a elbow.

Threadolet has the same basic design as a weldolet. However the main difference is the fitting has a female threaded connection to link to the branch connection. This makes a 90° branch and comes in full size or reducing for a straight piece of pipe

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.
The Alloy Steel A182 Threaded Elbow material grade contains ASTM A182 F11 / 12 / 5 / 9 / 91 / 92 / 22.

The threaded pipe union is similar to the coupling and can be flexibly disassembled when it needs to be repaired or replaced. The reducing threaded union is easy to disconnect and link, and can be operated multiple times.

ASTM A182 F316 threaded full couplings are pipe fittings with two threaded ends.ASME B16.11 forged fittings have THD fittings and SW fittings,THD fittings have CL2000,CL3000,CL6000 to choose;SW fittings have CL3000,CL6000,CL9000 to choose.

Half Coupling: One end of a half thread coupling is threaded and the other end is welded. Straight: It is a kind of pipe coupling with the same diameter at both ends. Reducing: The two ends of the coupling have different sizes

What is a Threaded Coupling,what about its specification and its advantages.

High pressure Stainless Steel A182 Threaded Tee is used for providing branch, it can be divided into equal tee and reducing tee. The common used dimension is DN15, DN20,DN25 and DN40 for socket weld tee and threaded tee.