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China 30/45/60/90/180 Degree Bw Elbow with High-Quality, Leading 30/45/60/90/180 Degree Bw Elbow Manufacturers & Suppliers, find 30/45/60/90/180 Degree Bw Elbow Factory & Exporters.

30/45/60/90/180 Degree Bw Elbow Product name: Pipe Elbow Size 1/2"-26" seamless, 26"-102" welded Standard ANSI B16.9, EN10253-2, DIN2605, GOST17375-2001, JIS B2313, MSS SP 75, etc. Wall thickness STD, XS, XXS, SCH20,SCH30,SCH40, SCH60, SCH80, SCH160, XXS and etc. Elbow 30° 45° 60° 90° 180°,etc Radius LR/long radius/R=1.5D,SR/Shrot radius/R=1D, Various radius:2.5D,3D.5D 10D, 20D etc. End Bevel end/BE/buttweld Surface nature color, varnished, black painting, anti-rust oil etc. Material Carbon steel: A234WPB, A420WPL6 St37,St45, E24, A42CP, 16Mn, Q345, P245GH, P235GH, P265GH, P280GH,P295GH,P355GH etc. Pipeline steel: WPHY42, WPHY52, WPHY60, WPHY65,WPHY70, WPHY80 and etc. Cr-Mo alloy steel: P11,P22,P5, P9,P91, 10CrMo9-10, 16Mo3 etc. Application Petrochemical industy;avation and aerospace industry;pharmaceutical industry;gas exhaust;power plant;ship buliding;water treament,etc. Advantages ready stock,faster delivery time;available in all sizes,austomized;high quality Definition and details of Butt Weld Fittings Elbows 45° - 90° - 180° LR/SR The function of a elbow is to change direction or flow in a piping system. By default, there are 5 opportunities, the 45°, 90° and 180° elbows, all three in the "long radius" version, and in addition the 90° and 180° elbows both in the "short radius" version. Long and Short Radius Elbows are split into two groups which define the distance over which they 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. The center to face distance for a "long" radius elbow, abbreviated LR always is "1½ x Nominal Pipe Size (NPS) (1½D)", while the center to face distance for a "short" radius elbow, abbreviated SR even is to nominal pipe size. Here below, for example, you will find the center to face distance of NPS 2 elbows (the A distance on the image) 1. 90°-LR : = 1½ x 2(NPS) x 25.4 A=76.2 mm 2. 180°-LR : = 2 times the 90° LR elbow A=152.4 mm 3. 90°-SR : = 2(NPS) x 25.4 A=50.8 mm 4. 180°-SR : = 2 times the 90° SR elbow A=101.6 mm 3D elbows as an example, are calculated with: 3(D) x 2(NPS) x 25.4 45° Elbow The function of a 45° elbow is the same as a 90° elbow, but the measurement of dimensions is different to that of the 90° elbow. The radius of a 45° elbow is the same as the radius of the 90° LR (1½D). However, the center to face dimension is not equivalent to the radius as in 90° LR elbows. This is measured from each face to the point of intersection of the center lines perpendicular to each other, distances B on the image. This is due to the smaller degree of bend. Short radius 45° elbows are not available. Standards The most applied version is the 90° long radius and the 45° elbow, while the 90° short radius elbow is applied if there is too little space. The function of a 180° elbow is to change direction of flow through 180°. Both, the LR and the SR types have a center to center dimension double the matching 90° elbows. These fittings will generally be used in furnesses or other heating or cooling units. Dimensions, dimensional tolerances and more images, can be found in the main Menu "Fittings". In addition to the defined elbows, there is the Reducing Elbow, which is a elbow with various diameters on the ends. Because this elbow, for many suppliers it is not a standard item, and thus probably a high price with a long delivery time, the use of a "normal" elbow with a separate reducer is an option if the situation allows. Other degrees elbows can be machined from a standard elbow. Longer radius type, the center to face dimension e.g. is three times the nominal size (3D), even is available. Dimensions, dimensional tolerances etc. for long and short radius elbows are defined in ASME B16.9. Wall Thickness of Elbows The weakest point on an elbow is the inside radius. ASME B16.9 only standardizes the center to face dimensions and some "squareness" dimensional tolerances. The wall thickness at the weld line location even is standardized, but not through the rest of an elbow. The standard states that the minimum tolerance will be within 12.5% of the minimum ordered wall thickness of the pipe. A maximum tolerance is specified only at the ends of the fitting. Many providers of buttweld elbows (and tees) provide one schedule greater thickness so that sufficient wall thickness, after forming, remains. Bangdong Supply Carbon Steel Forged Elbow,Pipe Fitting Elbow,180 Degree U Bend.We manufacture wide socket weld fittings and screwed pipe fittings that ensures smooth flow of the liquid. The socket weld design is commonly used in the demanding environments of chemical and power plants. Highly reliable, these stainless steel socket weld fittings and screw provide a sturdy, tight integral line system. 90° Elbow Size Range: 1/2"-102" Wall thickness: Sch10, Sch40, Sch80 Material: Carbon Steel ASTM A234 WPB Standard: ASME B16.9 DIN2605 JIS B2312 Coating: Black Paint, Galvanized Type: Long Radius(R=1.5D), Short Radius(R=1D) Please contact us for more details about the A234 Wpb Elbow ,A234Wp9 Elbow or other Butt Weld Pipe Fittings . We have below in stock : 316/316L Pipe Fitting A403 Wp304l Pipe Fitting A860 Wphy52 Elbow A234WP11 Pipe Fitting A234Wp9 Elbow A420 Wpl6 Pipe Fitting  http://www.bd-pipefitting.com

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