Buttwelding concentric/Eccentric reducer NPS 3/4” – 60” ASME B16.9

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 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.

The length dimension of the reducer is almost equal to the average of the big bore and smaller bore pipe diameters. Concentric reducers are easy to transport mud and grinding fluid and are suitable for corrosive operations

ASME B16.9 BW 90 elbow is pipe fitting manufactured according to American Standard.ASME B16.9 is American Standard of butt welded fittings.There is BW elbow in the picture,you could find the specification and dimensions below.

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.

90 degree elbow, also called “90 bends or 90 elbows”, are manufactured as SR (Short Radius) elbows and LR (Long Radius) elbows.

A403 WP304  eccentric reducer is a pipe fitting used to connect pipes of different diameters, and the central axes do not overlap, which means there is an eccentricity. The eccentric reducer has two ends, one with a larger diameter and the other with a smaller diameter.

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.

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.

The function of an elbow and What is the difference between LR and SR elbow?

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 body of the branch abutment is made of high-quality forgings, which are made of the same materials as the pipes, including carbon steel, alloy steel, stainless steel, etc. The branch pipe seat and the main pipe are welded

Lap joint stub end usually used with lap joint flange.BW fittings are welding with the end of pipes.Butt welded fittings are popular because of the strong and permanent connections.

SR (short radius) elbow is only for 90 deg elbow.SCH XXS is the biggest wall thickness in butt welded fittings.The commonly used wall thicknesses:SCH 40 , SCH 80.The wall thickness more bigger,the bearded pressure of the fittings can be higher.

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.

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.

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.

ASME B16.9 BW tee is a butt welded pipe fitting according to American Standard.Carbon steel fittings are used in many applications because of its great excellent functions.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.

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.

Steel pipe bend is belong to butt welded fittings,bends have some similar usages as elbows.However,bends can be customized by clients to satisfy different demands.Schedule 80 is represents to the wall thickness of BW fittings.The most used wall thicknesses of butt welded fittings are SCH 40,SCH 80.

Equal BW tee is a commonly used fittings in butt welded fittings.ASTM A234 WPB WPC are both grades for carbon steel fittings.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.

Carbon steel pipes have a wide using range because it has great functions and affordable price.It can be welded pipe and seamless pipe,among these,the more used type is welded pipe.Welded pipes also have different types:LSAW pipe,SSAW pipe and ERW pipe.

The reducing tee has two outlets cut at 90 degrees with the main pipe, and the size of the branch pipe is smaller than the port of the pipeline. It is used for main pipe string accessories, solvent welding accessories, side outlet and conflicting soluble welding accessories

SS 304/316 pipe tees are popular because these tees have excellent corrosion resistance.Tees can made for three types:BW (butt welded) tee,SW (socket weld) tee,THD (threaded) tee.Clients can choose different type of tees to satisfy different demands.ASME B 16.9 is represents butt welded fittings in American Standard.SW fittings and THD fittings are belong to forged fittings which marked as ASME B 16.11.

Butt weld fittings would also be referred to as welded pipe fittings. When these would be used in stainless steel and carbon steel, they would be able to offer certain advantages as compared to socket weld and threaded fittings. Whereas socket weld would only be available up to a specific size, you would find butt weld fittings to be available in sizes starting 1/2 inch to 72 inch.

usage,specification of a equal tee and ite difference between a reducing tee.