ASME B16.9 Stainless Steel A403 WP316/316L Butt Weld Elbow

These Stainless Steel Pipe Fittings are best known for their heat resistance, creep strength and tensile strength. Machined and fabricated to meet your diverse piping requirements, these pipes fittings exhibit excellent corrosion resistance in a wide range of atmospheric environments.

What is a straight and reducing tee and Dimensions and Standards

45 deg BW elbow can change the direction of fluids or gas by 45 deg,it only has LR (long radius) type while 90 deg butt welded elbow has both LR and SR(short radius) types.Carbon steel is the most used material in pipe fittings because it has great functions to satisfy many applications.

BW equal tees are the most used tees in the all types of tees.There are equal tee and reducing tee.Galvanized carbon steel pipe fittings have better corrosion resistance than carbon steel fittings.

BW 180 deg elbow is used to change the direction of pipe system in 180 degree.There are also 90 deg elbow and 45 deg elbow to meet different demands.Carbon and alloy steel are always called “black steel” as the surfer of these steels are black.

Reducing tee is a commonly used fittings to branch the pipes and reduce the flow in the piping systems.Large dimension is for butt welded fittings.ASME B16.9 pipe fittings are BW fittings according to American Standard,the size range for the ASME B16.9 fittings is 1/2″-80″.

Connect two pipes with the same or different nominal diameters to make the pipeline turn at 90 degrees, 45 degrees, 180 degrees and other angles

Butt Weld Concertric Reducer is the type of pipe fitting which helps to join two pipes with different diameters. There are various material for The pipe reducers as per the demands of industries and also available in many dimensions.

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 are mainly used for elbow with higher pressure and temperature than other connection types. According to the valve body material, it has stainless steel, carbon steel and alloy steel elbow

Concentric reducer is used to join pipe sections or tube sections on the same axis The length dimension of the reducer is almost equal to the average of the big bore and smaller bore pipe diameters.

The two ends of concentric reducer are designed with large diameter and small diameter, and the pipe is connected through conical transition section on the same axis.

A234 WP22 elbow is a alloy steel pipe fitting used in piping systems.A234 WP22 is represents alloy steel butt welded fittings in American Standard.Elbows can manufactured as 45 and 90 deg.These elbows have similar functions,the only difference is 45 degree elbow can changes the direction of pipes in 45 degree while 90 degree elbow can changes in 90 deg.

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.

Butt weld elbow is the most used type of elbows.It can welded with the pipes to achieve strong and permanent connection.Stainless steel fittings are popular because of the an-ti corrosive function.Stainless steel fittings can used over 50 years.

Buttwelding Fittings Specification
Shape: Elbow, Tee, Cross, Bend, Reducer, Cap, Stub End
Size Range: 1/2″ – 80″ / DN15 – 2000
Thickness Schedule: SCH 10,SCH 10S, SCH 20, SCH 40,SCH 40S, STD, XS,SCH 80, SCH 80S, SCH 100, SCH 120, SCH 160, XXS

The radius of both the 45 degree and 90 Degree long and short elbow is the same however, the center to face dimension is not equivalent due to the smaller degree of bend.

Butt welded lateral tee is a special type of BW tees.It is different from the normal tees as the lateral tee can change the direction of the pipe system in 45 degree.Carbon steel fittings are the most used fittings as carbon steel material has great functions and affordable price.

Concentric reducers will change kindly between the pump and piping， A pipe reducer is available in various specifications, such as a single diameter change and also in a multiple diameter change.

According to the production process, it can be divided into: welding elbow, stamping elbow, pushing elbow, casting elbow, butt welding elbow, etc. Other names: 90 degree elbow, right angle bend, etc.

Concentric reducer is used to join pipe sections or tube sections on the same axis. It is cone-shaped, and is used when there is a shift in diameter between pipes. A pipe reducer is available in various specifications, such as a single diameter change and also in a multiple diameter change.

Butt welded reducers can be concentric (COC) reducer and eccentric (ECC) reducer.These reducers have same functions,the only difference is the internal structure.There are the BW fittings specifications in the content below.

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.

Long Radius (LR) Elbow is also called LR elbow – means the radius is 1.5 times the pipe diameter
L/R 45°Elbow: Long radius 45 degree elbow changes the direction by 45 degrees.
L/R 90°Elbow: Long radius 90 degree elbow changes the direction by 90 degrees.
L/R 180°Elbow: Long Radius 180 degree return bend allows complete reversal of flow.

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

45 deg elbow can be butt welded elbow and forged elbow.Forged elbows are including SW (socket weld) elbow and THD (threaded) elbow.Stainless steel pipe fittings are popuar because stainless steel has excellent corrosion resistance,stainless steel has using age over 50 years,so the material is more expensive than other materials.

Carbon steel butt weld reducer is belong to ASME B16.9 pipe fittings,there are concentric reducer and eccentric reducer for chosen to meet different demands.

ASTM A234 specification has many grades, such as WPB, WPC, WP5, WP9 WP11, WP12, WP22, WP91 and so on.
In these standard Grade WPB is the most common material used for medium and high temperature pipelines. W means weldable, P means pressure, B is grade b, refer to the minimum yield strength.

BW (butt welded) reducer have two types:Eccentric Reducer and Cocentric Reducer.Reducer only has welded connection.However,swage nipple which belong to forged fittings has same function to reducer.