concentric reducer
Concentric reducer is a reducer whose center is in a straight line. The forming process is usually used for reducing the diameter pressing, expanding pressing or reducing the diameter and expanding pressing, for some specifications of reducing pipe can also use stamping forming.
R Wall thickness dimensions Sch. 5s-160 Material carbon steel, stainless steel, alloy steel
directory
1 Basic Information
2 make
3 Distribution Characteristics
4 classification
5 Standard System
concentric reducer
Concentric reducer heads with concentric centers on the same line are called concentric reducer heads.
3/4" X1/2" -- 48" X 40" [DN 20 X 15 -- 1200 X 1000]
Wall thickness: SCH.5s-160
Execution standard: GB/T12459-2005, American standard (ANIS), Japanese standard (JIS), British standard (BS), German standard (DIN), Italian standard (UNI), etc
Material: carbon steel, stainless steel, alloy steel
Packing: free fumigation wooden cases and pallets can be specially packed according to customer's requirements.
Product quality: ISO9001:2008 quality management system certification, ISO14001 environmental management system certification, OHSAS18001 occupational health and safety management system, pressure pipeline special equipment manufacturing license, state Power Corporation, China National Petroleum Corporation level 1 supply network member
Product use:
LPG pipeline engineering, natural gas pipeline engineering, chemical plant, power plant, shipyard, pharmaceutical, dairy, beer, beverage, water conservancy and so on
Note: Carbon steel :10#, 20#, A3, Q235A, 20G, 16Mn, ASTM A234, ASTM A105, etc
Stainless steel: ASTMA403, 1Cr18Ni9Ti, 0Cr18Ni9, 00Cr19Ni10, 00Cr17Ni14Mo2, 304,
304L, 316, 316L, etc
Alloy steel :16MnR, Cr5Mo, 12Cr1MoV, 10CrMo910, 15CrMo, 12Cr2Mo1, A335P22,
Reducer is a Reducer that is used for pipe size. The forming process is usually used for reducing the diameter pressing, expanding pressing or reducing the diameter and expanding pressing, for some specifications of reducing pipe can also use stamping forming.
A. Shrinkage/expansion forming
Reducer Reducer forming process is to put the tube blank with the same diameter as the big end of the big head into the forming die, by pressing along the axial direction of the tube blank, make the metal move along the cavity and shrink forming. According to the size of reducing tube, it can be divided into one pressing forming or multiple pressing forming.
B. Stamping
In addition to using steel pipe as raw material to produce Reducer, some Reducer specifications can also be produced by stamping forming process of steel plate. The shape of the drawing die is designed according to the size of the inner surface of the head, and the steel plate after blanking is stamped and drawn into shape with the die.
Before Reducer bonding, wipe the side of the Reducer mouth and outside of the socket with dry cloth. If there is oil on the surface, clean it with acetone. Note the following:
1, control caliber: DIN standard (DN10-DN150), 3A/IDF standard (1/2"-6"), ISO standard (ф 12.7-ф 152.4);
2, international industry standards: DIN, ISO, SMS, 3A, IDF, etc.;
3, product material: stainless steel 304, 316, 316L;
Reducer internal and external high-grade polishing equipment processing, to achieve the surface precision requirements; This product is suitable for dairy, food, beer, beverage, pharmaceutical, cosmetics and other industrial fields;
5, external processing: according to user requirements to map, sample processing non-standard products;
6, connection mode: clamp (quick loading) type, welding type, thread (live) type.
Reducer is also suitable for reducing the diameter of the pipeline in the environmental protection dust removal industry. It is generally made of steel plate rolling, cutting and welding, with different diameters and materials
Generally are hot rolled coil, the application is very good, can save costs.
Distribution characteristics edit broadcast
(1) Under the action of internal pressure, the bending moment generated by the area pressure difference between the big and small ends of the homocentric reducer causes the phenomenon of the relative opening of the big end and the relative contraction of the small end;
(2) The annular stress on the inner surface of the big end of the eccentric side and the outer surface of the middle of the eccentric side of the eccentric reducing pipe is the largest under the action of internal pressure.
Classified editor broadcast
1. Classification 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 leakage, PVC, PPR, RFPP(reinforced polypropylene) and so on.
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, ship standard, chemical 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. The 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, XXS The two most commonly used are STD and XS.
Standard system editor broadcast
The international pipe flange standard mainly has two systems, namely the European pipe flange system represented by German DIN (including the former Soviet Union) and the American pipe flange system represented by American ANSI pipe flange. In addition, there are Japanese JIS pipe flanges, but in petrochemical installations generally only used for public works, and the international impact is small. The pipe flanges of various countries are introduced below:
1. Pipe flange of European system represented by Germany and the former Soviet Union
2. American system pipe flanges, represented by ANSI B16.5 and ANSI B 16.47
3, British and French pipe flange standards, two countries each have two pipe flange standards.
To sum up, the international standard of pipe flanges can be summarized as two different and not interchangeable pipe flange systems: a European pipe flange system represented by Germany; Another is the American pipe flange system represented by the United States.
Ios7005-1 is a standard promulgated by the International Organization for Standardization in 1992, the standard is actually the United States and Germany two series of pipe flanges merged into the pipe flange standard.
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