BW Elbow Alloy Steel Pipe Fittings

The elbow radius mean curvature radius. If the radius is the same as pipe diameter, it called short radius elbow, also called SR elbow, normally for low pressure and low speed pipelines. If the radius is larger than pipe diameter, R ≥ 1.5 Diameter, then we call it a long radius elbow (LR Elbow), applied for high pressure and high flow rate pipelines.

Butt welded tee can be equal type and reducing type.Both types can change the direction of the piping system in 90 deg.In addition,the reducing tees can reduce the flow of the fluids or gas.Shanghai Zhucheng is an excellent pipe fittings manufacturer from China who supply high quality fittings for years.

Fittings that change direction in a piping system are called elbows which available in 90 degree and 45 degree long radius elbow. Both of them has the center line at 1.5 x NPS from elbow end.

Steel Reducing Tee: The branch diameter is smaller than the main line diameter. Tee reducer is usually described as NPS diameters in 4”x 4”x 3”, 4”is the main line pipe diameter, and 3”is the reducing branch

ASME B 16.9 tee is BW (butt welded) tee belong to butt welded fittings.These tees can bu equal type or reducing type.Normal tees can change the direction of the pipe system of 90 deg.And tees also have lateral tees to change the direction of 45 deg.

Pipe tees can be two types:Reducing Tee and Equal Tee.Both types of tees can branch the pipes in the piping systems.Schedule 40 is a wall thickness of the butt welded fittings,the commonly used schedules are SCH 40,SCH 80.

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 tee has three types: BW (butt welded),SW (socket welded),THD (threaded).The branches can be equal and reducing.Shanghai Zhucheng is a superior pipe fittings supplier who provide high quality pipe fittings and forged flanges in years.

90 deg elbow is the most used degree in elbows,.Butt welded fittings including BW elbows which used welded connection to connect with pipes.There is also 45 degree elbows.These elbows have similar functions,the only difference is the 90 degree elbow can changes the direction in 90 deg while the 45 degree elbow can changes in 45deg.

Pipe tees can be equal tee and reducing tee.These tees have same functions,the only difference is the reducing tee can reduce the flow in the piping system.Stainless steel fittings are popular because of the an-ti corrosive function.Stainless steel pipe fittings can used over 50 years.

What is the use of Weldolet?

It is used to handle any high or low weight fluid flow through the tee.Reducing tee is a kind of pipe fitting whose branch size is smaller than the size of pipeline parts. It is used for main pipe string accessories, solvent welding accessories, side outlet and conflicting soluble welding accessories. Such fittings are important because they meet two needs, that is, to connect or separate liquid streams. They are widely used in positive and vacuum applications.

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.

BW reducers have two types:Concentric Reducer and Eccentric Reducer.These two types can meet different demand.This is stainless steel BW COC reducer in the picture.Stainlee steel is better in corrosion resistance,so the used years will be longer than other matercial.

The lap joint stub end is required when attach the lap-joint flange to the piping system. The stub end and lap-joint flange assembly are used mainly in piping systems that necessitate frequent dismantling for inspection or routine maintenance.

Concentric reducer’s dimnesions and its usage and advantage

Carbon steel butt welded 90° elbows are belong to ASTM A234 WPB pipe fittingsBW 90 deg elbows could be made in two types:LR (Long Radius) and SR (Short Radius).The angle of pipe elbows are 45deg and 90 deg.Only 90 deg elbows have LR.

Spiral wound gasket (SWG) is a fitting used with flanges.ASME B16.20 is the American Standard for gasket.

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.

Carbon steel elbow has two degrees:90 deg and 45 deg.In real application,90 deg is more used type.90 deg elbow can be long radius (LR) and short radius (SR) while 45 deg elbow only has long radius (LR).

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

BW carbon steel reducer is the most used type of BW reducers.Butt welded reducer can be concentric (COC) reducer and eccentric (ECC) reducer to meet different demands.SCH 160 fittings are belong to large wall thickness,these fittings can resist high pressure in piping system.

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.

A234 WPB/WPC BW concentric reducers are carbon steel butt welded fittings,among these,A234 WPB is more chosen in many industries.BW reducers can be concentric (COC) reducer and eccentric (ECC) reducer.These reducers have same functions,the only difference is the internal structure.

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.A 90 degree elbow attaches readily to plastic, copper, cast iron, steel and lead. It can also attach to rubber with stainless steel clamps. Available in many materials like silicon, rubber compounds, galvanized steel etc.

BW elbow and reducer are both commonly used pipe fittings in piping systems.A234 WPB is the most used grade for carbon steel butt welded fittings.

Compared to 90 degree elbow, 45 degree elbow produces less friction, and with the lower pressure. 45 degree elbow is widely used in chemical industry, food, water supply facilities, electronic industry, chemical pipeline, horticulture, agricultural production, solar equipment pipeline, air conditioning pipeline and other fields.

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.

SS 304/304L elbow is stainless steel pipe fitting.304/604L is the most commonly used grade of stainless steel in American Standard.Elbows can made as 90 deg and 45 deg.Among these,90 degree elbows can be LR and SR while 45 degree elbows only have LR type.

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.