Concentric BW Reducer Welded Fittings

Butt weld fittings are manufacture by seamless or welded pipe. For pipe fittings manufacturers, the forming process of welded pipe and seamless pipe is basically same. Butt welded fittings can be divided into carbon steel butt welded fittings and stainless-steel butt-welded fittings

Concentric Reducer (COC Reducer),is one type of BW reducer.The other type is Eccentric Reducer (ECC Reducer).The two types reducers can meet different demands,You could find the “Concentric VS Eccentric” below to learn the usages for these two types reducers.

Steel pipe tee has three branches that can change fluid direction. It has T-shaped or Y-shaped, and include Equal Tee and Reducing Tee (Reducer Tee). Steel tee is widely used in pipe networks for convey liquids and gases.

Pipe crossing is used where four pipes intersect. The cross pipe may have one inlet and three outlets, or three inlets and one outlet. The diameter of the outlet and inlet can be the same or different.

Steel bend is almost same as pipe elbow. It’s radius is bigger and extensive used in oil and gas, engineering and construction industry.

Classify,specification of a BW 90 degree elbow

Butt Weld Fittings include elbows, tees, cross, caps and reduces. These fittings are the most common type of welded pipe fitting and are specified by nominal pipe size and pipe schedule. Buttweld fittings are manufacture by seamless or welded pipe and are formed to get the shape of elbows, tees and cross etc.

45° Pipe Elbow is also known as “45 bends or 45 ells”. The 45° pipe elbow is used to connect tubes at a 45° pipe angle. As the name suggests, this is a pipe fitting device which is bent in such a way to produce 45° change in the direction of flow of the fluid/gas in the pipe.

A234 WPB BW reducer has the most wide ragnge of applications in all types of butt welded reducer, because A234 WPB is the most used grade in carbon steel.Carbon steel pipe fittings are accepted in many projects because these fittings have great functions and reasonable price.

Concentric reducer consists of the symmetrical and conical shaped fittings that enlarge or reduce the diameter equally about the center line.

The pipes cannot appreciate because of what the external arrangement of the pipe reducer seems but the flow of the pipe is changed by the internal width conical transition arrangement.

LR 90 degree steel pipe elbow are installed between different lengths pipe or tubing. It helps to change direction at 90 degree, and is commonly used to connect hoses to pumps, deck drains and valve.SR 90 degree elbow is the same as the pipe elbow mentioned above, but the diameter is shorter. Therefore, this kind of steel elbow is often used when space is not enough.

There are two types of tees:Equal Tee and Reducing Tee.Both types of tees can branches the pipes but reducing tees can also reduce the flow.Schedule 40 is a commonly used wall thickness in butt welded fittings.

12 IN Carbon Steel Elbow is an important pipe fitting in piping system as it can change the direction of the pipes in 90 degree.ASTM A234 WPB is a commonly used grade for carbon steel in American Standard.

BW equal tee is always used in piping system to branch the pipes.ASME B16.9 Pipe Fittings are butt welded fittings in American Standard.Pipe tees can be equal tee and reducing tee.These tees have same functions,the only difference is reducing tee can reduce the flow in piping system.

BW 90 degree elbow is the most chosen type in all types of elbows.It can be long radius (LR) or short radius (SR).ASTM A234 WPC is standard for carbon steel butt welded fittings.There is also a more commonly used standard for carbon steel butt welded fittings is ASTM A234 WPB.

Carbon Steel: Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC
Low Temp Carbon Steel: Q345B, 16Mn, ASTM A420 WPL6
Pipeline Steel: ASTM A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel: ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5
Stainless Steel: ASTM A403 WP304/304L/304H, 316/316L, 310S, 321, 317,347,904L
Duplex Stainless Steel: ASTM A815 S32205, S31803, 32750, 32760

45 degree elbow is second common use after 90 degree elbow. The function of a 45 degree elbow is the same as a 90 degree elbow, but the measurement of dimensions is different to that of the 90 degree elbow.

Long radius elbow refers to the pipe outer diameter with radius of curvature equal to 1.5 times, i.e R = 1.5D.
Short radius elbow means that its radius of curvature is equal to the outer diameter of the tube, i.e R = 1.0D

Carbon Steel: Q235, 20#, 35#, 45#, 20G,ASTM A234 WPB/WPC
Low Temp Carbon Steel: Q345B, 16Mn, ASTM A420 WPL6
Pipeline Steel: ASTM A860 WPHY 42 / 46 / 56 / 60 / 65
Alloy Steel: ASTM A234 WP11 / WP12 / WP 5 / WP9 / WP91 / WP92,15CrMoG, 12Cr1MoVG, 12Cr5Mo, 1Cr5Mo, Cr9Mo, 10CrMo910, 12CrMo4-5
Stainless Steel: ASTM A403 WP304/304L/304H, 316/316L, 310S, 321, 317,347,904L
Duplex Stainless Steel: ASTM A815 S32205, S31803, 32750, 32760

Carbon steel elbow is a weldable & threaded pipe fitting that allows for change of flow direction, we manufactured them as standard of ASME B16.9 and B16.11. ASTM A234 WPB Elbow is the common used in the oil and gas industires.

Reducing tee is used to change the direction and reduce the flow of the fluids or gas.Butt welded pipe fittings can weld with the pipes so that can anti leakage effectively.Tees have two types:Equal Tee and Reducing Tee.The commonly used wall thicknesses for butt welded fittings are SCH STD,SCH 80,SCH 160.

Elbows are split into two groups which define the distance over which the flowing fluid change direction; the center line of one end to the opposite face. This is known as the “Center to Face” distance and is equivalent to the radius through which the elbow is bent.

Tee welding joints are formed when two pieces intersect at a 90° angle. This results in the edges coming together in the center of a plate or component in a ‘T’ shape. Tee joints are considered to be a type of fillet weld, and they can also be formed when a tube or pipe is welded onto a base plate.

Butt weld elbow is a steel elbow formed by hot pressing or forging. Its connection form is to directly weld the elbow and steel pipe. Butt welded elbows have beveled ends to allow for ease of welding. This bevel allows for full penetration weld in most of the cases. Butt welded elbows are mainly used for elbow with higher pressure and temperature.

Reducer can divided as concentric reducer and eccentric reducer.These reducer have same functions in pipe system,the only diffierence is the internal structure. Carbon steel fittings are used in many applications because of its great excellent functions.

What is a 90 DEGREE LR ELBOW and what about its specification and advantages.

BW 3D elbow is belong to Butt welded (BW) elbows.3D means the radius is 3 times of dimensions long.A234 WPB is the most used grade of carbon steel butt welded (BW) fittings according to American Standrad.The degree of the butt welded 3D elbow can be 45 deg, 90 deg and 180 deg.