90DEGREE ELBOW001

A 90 degree elbow commonly used in pipeline installation is connected to two pipes with the same or different nominal diametre to make the pipe turn at a certain Angle and the nominal pressure is 1-1.6Mpa.

Elbow is a 90 degree elbow commonly used in water heating installation. It is used to connect the bend of the pipe and change the direction of the pipe.

Other names: 90° elbow, right Angle bend, love bend, stamping elbow, pressing elbow, mechanical elbow, welding elbow, etc.

Purpose: To connect two pipes with the same or different nominal diameters, so that the pipe can be turned 90°, 45°, 180° and various degrees.

Bending radius less than or equal to 1.5 times of pipe diameter belongs to the elbow, greater than 1.5 times of pipe diameter belongs to the bend.

Since most 90-degree elbows are used for welding, in order to improve the quality of welding, the end of the car groove, leave a certain Angle, with a certain edge, this requirement is relatively strict, the thickness of the edge, the number of Angle and deviation range are specified. The surface quality and mechanical properties are basically the same as the pipe. For easy welding, 90 degree elbows are made of the same steel as the pipe to which they are connected.

All 90 degree elbows are surfacing by shot peening to remove the iron oxide from the inner and outer surfaces and applying anti-corrosion paint. This is for export needs, in addition, in order to facilitate transportation to prevent corrosion and oxidation, we should do this work.

Is the requirements for packaging for small 90 degree elbow, such as export, you need to make a wooden box, about 1 cubic meter, the number of provisions in this box elbow about not more than one ton, the standard allows the set, that is, a large set of small, but the total weight of generally not more than 1 ton. For large pieces y need to be individually packed, like 24 "must be individually packed. The other is the packaging mark, mark is to indicate the size, steel number, lot number, manufacturer's trademark.

Partition by material

Carbon steel: ASTM/ASME A234 WPB, WPC

Alloy: ASTM/ASME A234 WP 1-WP 12-WP 11-WP 22-WP 5-WP 91-WP911, 15Mo3 15CrMoV, 35CrMoV

Stainless Steel :ASTM/ASME A403 WP 304-304L-304H-304LN-304N

ASTM/ASME A403 WP 316-316L-316H-316LN-316N-316Ti

ASTM/ASME A403 WP 321-321H ASTM/ASME A403 WP 347-347H

Low temperature steel :ASTM/ASME A402 WPL3-WPL 6

High performance steel: ASTM/ASME A860 WPHY 42-46-52-60-65-70

Cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon plating, PVC, PPR, RFPP(reinforced polypropylene), etc.

90 degrees elbow can be divided into pushing, pressing, forging, casting, etc.

90 degrees elbow can be divided into national standard, electrical standard, ship standard, chemical standard, water standard, American standard, German standard, Japanese standard, Russian standard and so on.

90 degrees elbow according to its radius of curvature: can be divided into long radius elbow and short radius elbow. Long radius elbow refers to the outside diameter of the pipe whose radius of curvature is equal to 1.5 times, that is, R=1.5D; A short radius elbow is one whose radius of curvature is equal to the outside diameter of the pipe, i.e. R=1.0D. (D is the diameter of the bend and R is the radius of curvature).

If the elbow is divided according to the pressure level, there are about 17 kinds of pipe standards, and the United States is the same, there are: Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS; Sch80, SCH100, Sch120, Sch140, Sch160, XXS; The two most commonly used are STD and XS.

Elbow according to different shapes can be divided into: groove elbow, sleeve elbow, double bearing elbow, flange elbow, reducing elbow, idler elbow, internal and external teeth elbow, stamping elbow, push elbow, socket elbow, butt welding elbow, internal wire elbow, etc.

90 degree elbows require control of radius of curvature. For example, if the radius length is 1.5D, then the radius of curvature must be within the required tolerance. Because most of these 90 degree elbows are used for welding, in order to improve the quality of welding, the end of the car groove, leave a certain Angle, with a certain edge, this requirement is more strict, the thickness of the edge, the amount of Angle and deviation range are specified, geometric size than 90 degree elbow many more items. The surface quality and mechanical properties of the elbow are basically the same as those of the pipe. In order to facilitate welding, the steel material of the pipe to be connected should be the same.

Because the elbow has good comprehensive performance, so it is widely used in chemical industry, construction, water supply, drainage, petroleum, light and heavy industry, freezing, health, water heating, fire, power, aerospace, shipbuilding and other basic engineering.

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