China Nickel Alloy Pipe manufacturer

TOBO ALLOY GROUP

TOBO Alloy Group is a mature, steady and energetic high-tech company, specializing in manufacture of high-temperature alloys and corrosion resistant alloys, such as Hastelloy, Haynes, Monel, Inconel, Incoloy and nickel.

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September 7, 2021

The use of elbow

In a piping system, elbow is a piece of pipe that changes the direction of the pipe.According to the Angle, there are 45° and 90°180° three most commonly used, in addition according to the engineering needs also include 60° and other abnormal Angle elbow.Elbow materials are cast iron, stainless steel, alloy steel, calcined cast iron, carbon steel, non-ferrous metals and plastics, etc.Pipe connection methods include: direct welding (the most common way) flange connection, hot melt connection, electric melt connection, thread connection and socket type connection.According to the production process can be divided into: welding elbow, stamping elbow, push elbow, casting elbow and so on.Other names :90 degree bend, right Angle bend, love bend and so on.
directory
use
classification
standard
The national standard of petrochemical standard pipe fittings in the implementation standard of electric power standard pipe fittings
The process flow
A. Hot push forming B. stamping forming C. other forming methods
Introduction to the
Elbow product comparison table in English
General classification of elbow products
classification
standard
The national standard of petrochemical standard pipe fittings in the implementation standard of electric power standard pipe fittings
The process flow
A. Hot push forming B. stamping forming C. other forming methods
Introduction to the
Elbow product comparison table in English
General classification of elbow products
Expand and edit this paragraph
The German standard elbow
A common connection pipe in pipeline installation, connecting two pipes with the same or different nominal diameter, so that the pipeline to do a certain Angle turn.
90 - degree bend
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1. According to the material classification of carbon steel, cast steel, alloy steel, stainless steel, copper, aluminum alloy, plastic, argon, PVC, PPR, etc.2. According to the production method, it can be divided into pushing, pressing, forging, casting, etc.3. According to the manufacturing standard, it can be divided into GB standard, electric standard, water standard, American standard, German standard, Japanese standard, Russian standard, etc.4. According to its radius of curvature, it can be divided into long radius elbow and short radius elbow.Long radius elbow refers to the outer diameter of the pipe whose radius of curvature is equal to 1.5 times, that is, R=1.5D.Short radius elbow means that its radius of curvature is equal to the outer diameter of the pipe, that is, R= 1.0d.(D is elbow diameter, R is radius of curvature).5. According to the pressure grade, there are about 17 kinds of tubes, which are the same as American standards, including Sch5s, Sch10s, Sch10, Sch20, Sch30, Sch40s, STD, Sch40, Sch60, Sch80s, XS;Sch80, SCH100, Sch120, Sch140, Sch160, XXSThe two most commonly used are STD and XS.6. According to different shapes and uses, it can be divided into: grooved elbow, card sleeve elbow, double socket elbow, flange elbow, reducing elbow, fixed seat elbow, internal and external tooth elbow, stamping elbow, push elbow, socket elbow, butt welding elbow, inner wire elbow, etc.
Pury steel
Pury steel
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The standard,
JIS B2311 Universal steel butt-welded pipe fittings JIS B2312 steel butt-welded pipe fittings JIS B2313 Steel butt-welded pipe fittings JIS B2316 Steel socket welded pipe fittingsFactory made forged steel butt welded pipe fittings ASME/ANSI B16.11 Socket welded and threaded Forged Pipe fittings ASME/ANSI B16.28 Steel butt welded small radius elbows and reverse bends ASME B16.5 pipe flanges and flange fittings MSSSp-43 forged stainless steel butt welding pipe fittings MSS SP-79 Socket welding reducing insert MSS SP-83 Socket welding and thread flexible joint MSS SP-97 socket welding, thread and butt welding end integral strengthening type pipe seat
Electrical standards for pipe fittings
GB2000 Thermal power plant Steam pipe Parts and components typical Design Manual DL/T515-93 Power station elbow D-GD87-1101 Pipe parts and components typical design Pipe parts and components chemical standards:HGJ514 Carbon steel, low-alloy steel seamless butt welded pipe fittings HGJ528 steel slotted butt welded pipe fittings HGJ10 Wrought steel socket welded pipe fittings HGJ529 Wrought steel socket welded, threaded and butt welded pipe fittings HGJ-44-76-91 steel pipe flanges, gaskets, fastenersHg20592-20635 steel pipe flange, gaskets, fasteners
Petrifaction standard for pipe fittings
Standard No. Description SH3406 Petrochemical steel pipe flanges SH3408 steel butt welded seamless fittings SH3409 forged steel socket welded fittings SH3410 steel plate butt welded fittings
National standard for pipe fitting implementation standards
Steel butt-welded seamless pipe fittings GB/T13401 butt-welded pipe fittings made of steel sheet GB/T14383 Forged steel socket welded pipe fittings STEEL flanges, flanges and gaskets for flangesPipe fittings Implementation standards petroleum Standards: Standard No. Description SY/T0510-1998 Steel butt welded pipe fittings SY/T5257-2004 Steel elbow edit this section of the process flow
Seamless elbow: Elbow is a pipe fitting used at bends in pipes.In the pipeline system used in all pipe fittings, accounted for the largest proportion of about 80%.Usually, different forming processes are selected for elbows of different materials or wall thickness.At present, manufacturers commonly used seamless elbow forming process has hot push, stamping, extrusion and so on.

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