ท่อลดขนาด – มีศูนย์กลางและนอกรีต
Abter company carries a wide range of concentric and eccentric reducers.
Dimensional tolerances conform to ASME B16.9. Fitting wall thicknesses conform with standard schedule SCH10,SCH20,SCH30,โรคติดต่อทางเพศสัมพันธ์,SCH40,SCH60,sch80,SCH100,sch120,SCH160 and ASME B36.19M wall pipe.
Butt welding fittings are permanently marked by electro-chemical etching in accordance with ASME B16.9. Estimated fitting weights are based on a density of .163 lbs/cubic inch.
A steel pipe reducer is the component in a pipeline that decreases the pipe size to a smaller bore. There are two main types of reducer: concentric and eccentric reducer. Some pipe reducers are manufactured by means of punch forming and others by bending, extruding, pushing, molding or machining.
The steel pipe reducer is used when liquid flow increases or decreases in small quantities. In order to prevent cavitation, it is also used to connect to the inlet hole of pump. Besides, it is also useful to connect joints in instrument like flow meter and control valve. The steel reducer also finds applications in sugar mills and distilleries, ปั๊ม, ปิโตรเคมี, cement and construction industries and steel plants. It can be stored in fumigation-free boxes or wooden holders.
วัตถุดิบ
* A234 – WPB WP5, WP9, WP11, WP22
* A420 – WPL3/ WPL6
* A403 – WP304/L; WP316/L
* A860-WPHY 42-46/52-60/65-70
Special Materials such as Monel, Inconel, Cu-Ni, Duplex SS etc are available on request
Specifications of the Steel Pipe Reducer
พิมพ์ | |||
Seamless Reducer | Weld Reducer | Butt Welding Reducer | |
เส้นผ่านศูนย์กลางออก | 1/2″ ~ 24″ | 4″ ~ 24″ | 12″ ~ 78″ |
ความหนาของผนัง | 3 มม.~ 150 มม | ||
ประเภทสินค้า | Concentric reducer, eccentric reducer |
Standard Available
Our company provides steel pipe reducers of different standards to meet requirements of customers.
GB/T12459-2005 GB/T13401-2005 GB/T10752-2005
เอสเอช/T3408-1996 เอสเอช/T3409-1996
SY/T0518-2002 SY/T0510-1998
DL/T695-1999 GD2000 GD87-1101
เอชจี/T21635-1987 เอชจี/T21631-1990
ASME B16.9-2007 ASME B16.25-2007
เอ็มเอสเอส เอสพี 75-2008
ซีเอสเอ Z245.11-05-2005
EN10253-1-1999 EN10253-2-2007 EN10253-3-2008 EN10253-4-2008
ดิน2605-1-1992 ดิน2605-2-1995
BS1640-1-1962 BS1640-2-1962 BS1640-3-1968 BS1640-4-1968 BS1965-1-1963
อัฟนอร์ เอ็นเอฟ เอ 49-289-1990 อัฟนอร์ เอ็นเอฟ เอ 49-170-1-1999 อัฟนอร์ เอ็นเอฟ เอ 49-170-2-2009 อัฟนอร์ เอ็นเอฟ เอ 49-170-3-2009 อัฟนอร์ เอ็นเอฟ เอ 49-170-4-2009
ISO3419-1981 ISO5251-1981
มาตรฐาน JIS B2311-2009 มาตรฐาน JIS B2312-2009 มาตรฐาน JIS B2313-2009
buttweld-Reducer
เส้นผ่านศูนย์กลางที่กำหนด | เส้นผ่านศูนย์กลางภายนอก | End to End | ||
D1*D2 | ||||
ดีเอ็น | กรมอุทยานฯ | Series A | Serices B | H |
20×15 | 3/4×1/2 | 26.9×21.3 | 25×18 | 38 |
20×10 | 3/4×3/8 | 26.9×17.3 | 25×14 | 38 |
25×20 | 1×3/4 | 33.7×26.9 | 32×25 | 51 |
25×15 | 1×1/2 | 33.7×21.3 | 32×18 | 51 |
32×25 | 1.1/4×1 | 42.4×33.7 | 38×32 | 51 |
32×20 | 1.1/4×3/4 | 42.4×26.9 | 38×25 | 51 |
32×15 | 1.1/4×1/2 | 42.4×21.3 | 38×18 | 51 |
40×32 | 1.1/2×1.1/4 | 48.3×42.4 | 45×38 | 64 |
40×25 | 1.1/2×1 | 48.3×33.7 | 45×32 | 64 |
40×20 | 1.1/2×3/4 | 48.3×26.9 | 45×25 | 64 |
40×15 | 1.1/2×1/2 | 48.3×21.3 | 45×18 | 64 |
50×40 | 2×1.1/2 | 60.3×48.3 | 57×45 | 76 |
50×32 | 2×1.1/4 | 60.3×42.4 | 57×38 | 76 |
50×25 | 2×1 | 60.3×33.7 | 57×32 | 76 |
50×20 | 2×3/4 | 60.3×26.9 | 57×25 | 76 |
65×50 | 2.1/2×2 | 73.0×60.3 | 76×57 | 89 |
65×40 | 2.1/2×1.1/2 | 73.0×48.3 | 76×45 | 89 |
65×32 | 2.1/2×1.1/4 | 73.0×42.4 | 76×38 | 89 |
65×25 | 2.1/2×1 | 73.0×33.7 | 76×32 | 89 |
80×65 | 3×2.1/2 | 88.9×73.0 | 89×76 | 89 |
80×50 | 3×2 | 88.9×60.3 | 89×57 | 89 |
80×40 | 3×1.1/2 | 88.9×48.3 | 89×45 | 89 |
80×32 | 3×1.1/4 | 88.9×42.4 | 89×38 | 89 |
90×80 | 3.1/2×3 | 101.6×88.9 | – | 102 |
90×65 | 3.1/2×2.1/2 | 101.6×73.0 | – | 102 |
90×50 | 3.1/2×2 | 101.6×60.3 | – | 102 |
90×40 | 3.1/2×1.1/2 | 101.6×48.3 | – | 102 |
90×32 | 3.1/2×1.1/4 | 101.6×42.4 | – | 102 |
100×90 | 4×3.1/2 | 114.3×101.6 | – | 102 |
100×80 | 4×3 | 114.3×88.9 | 108×89 | 102 |
100×65 | 4×2.1/2 | 114.3×73.0 | 108×76 | 102 |
100×50 | 4×2 | 114.3×60.3 | 108×57 | 102 |
100×40 | 4×1.1/2 | 114.3×48.3 | 108×45 | 102 |
125×100 | 5×4 | 141.3×114.3 | 133×108 | 127 |
125×90 | 5×3.1/2 | 141.3×101.6 | – | 127 |
125×80 | 5×3 | 141.3×88.9 | 133×89 | 127 |
125×65 | 5×2.1/2 | 141.3×73.0 | 133×76 | 127 |
125×50 | 5×2 | 141.3×60.3 | 133×57 | 127 |
150×125 | 6×5 | 168.3×141.3 | 159×133 | 140 |
150×100 | 6×5 | 168.3×114.3 | 159×108 | 140 |
150×90 | 6×3.1/2 | 168.3×101.6 | – | 140 |
150×80 | 6×3 | 168.3×88.9 | 159×89 | 140 |
150×65 | 6×2.1/2 | 168.3×73.0 | 159×76 | 140 |
200×150 | 8×6 | 219.1×168.3 | 219×159 | 152 |
200×125 | 8×5 | 219.1×141.3 | 219×133 | 152 |
200×100 | 8×4 | 219.1×114.3 | 219×108 | 152 |
200×90 | 8×3.1/2 | 219.1×101.6 | – | 152 |
250×200 | 10×8 | 273.0×219.1 | 273×219 | 178 |
250×150 | 10×6 | 273.0×168.3 | 273×159 | 178 |
250×125 | 10×5 | 273.0×141.3 | 273×133 | 178 |
250×100 | 10×4 | 273.0×114.3 | 273×108 | 178 |
300×250 | 12×10 | 323.9×273.1 | 325×273 | 203 |
300×200 | 12×8 | 323.9×219.1 | 325×219 | 203 |
300×150 | 12×6 | 323.9×168.3 | 325×159 | 203 |
300×125 | 12×5 | 323.9×141.3 | 325×133 | 203 |
350×300 | 14×12 | 355.6×323.9 | 377×325 | 330 |
350×250 | 14×10 | 355.6×273.0 | 377×273 | 330 |
350×200 | 14×8 | 355.6×219.1 | 377×219 | 330 |
350×150 | 14×6 | 355.6×168.3 | 377×159 | 330 |
400×350 | 16×14 | 406.4×355.6 | 426×377 | 356 |
400×300 | 16×12 | 406.4×323.9 | 426×325 | 356 |
400×250 | 16×10 | 406.4×273.0 | 426×273 | 356 |
400×200 | 16×8 | 406.4×219.1 | 426×219 | 356 |
450×400 | 18×16 | 457×406.4 | 478×426 | 381 |
450×350 | 18×14 | 457×355.6 | 478×377 | 381 |
450×300 | 18×12 | 457×323.9 | 478×325 | 381 |
450×250 | 18×10 | 457×273.0 | 478×273 | 381 |
500×450 | 20×18 | 508×457 | 529×478 | 508 |
500×400 | 20×16 | 508×406.4 | 529×426 | 508 |
500×350 | 20×14 | 508×355.6 | 529×377 | 508 |
500×300 | 20×12 | 508×323.9 | 529×325 | 508 |
550×500 | 22×20 | 559×508 | – | 508 |
550×450 | 22×18 | 559×457 | – | 508 |
550×400 | 22×16 | 559×406.4 | – | 508 |
550×350 | 22×14 | 559×355.6 | – | 508 |
600×550 | 24×22 | 610×559 | – | 508 |
600×500 | 24×20 | 610×508 | 630×529 | 508 |
600×450 | 24×18 | 610×457 | 630×478 | 508 |
600×400 | 24×22 | 610×406.4 | 630×426 | 508 |
650×600 | 26×24 | 660×610 | – | 610 |
650×550 | 26×22 | 660×559 | – | 610 |
650×500 | 26×20 | 660×508 | – | 610 |
650×450 | 26×18 | 660×457 | – | 610 |
700×650 | 28×26 | 711×660 | – | 610 |
700×600 | 28×24 | 711×610 | 720×630 | 610 |
700×550 | 28×22 | 711×559 | – | 610 |
700×500 | 28×20 | 711×508 | 720×530 | 610 |
750×700 | 30×28 | 762×711 | – | 610 |
750×650 | 30×26 | 762×660 | – | 610 |
750×600 | 30×24 | 762×610 | – | 610 |
750×550 | 30×22 | 762×559 | – | 610 |
800×750 | 32×30 | 813×762 | – | 610 |
800×700 | 32×28 | 813×711 | 820×720 | 610 |
800×650 | 32×26 | 813×660 | – | 610 |
800×600 | 32×24 | 813×610 | 820×630 | 610 |
850×800 | 34×32 | 864×813 | – | 610 |
850×750 | 34×30 | 864×762 | – | 610 |
850×700 | 34×28 | 864×711 | – | 610 |
850×650 | 34×26 | 864×660 | – | 610 |
900×850 | 36×34 | 914×864 | – | 610 |
900×800 | 36×32 | 914×813 | 920×820 | 610 |
900×750 | 36×30 | 914×762 | – | 610 |
900×700 | 36×28 | 914×711 | 920×720 | 610 |
950×900 | 38×36 | 965×914 | – | 610 |
950×850 | 38×34 | 965×864 | – | 610 |
950×800 | 38×32 | 965×813 | – | 610 |
950×750 | 38×30 | 965×762 | – | 610 |
1000×950 | 40×38 | 1016×965 | – | 610 |
1000×900 | 40×36 | 1016×914 | 1020×920 | 610 |
1000×850 | 40×34 | 1016×864 | – | 610 |
1000×800 | 40×32 | 1016×813 | 1020×820 | 610 |
1050×1000 | 42×40 | 1067×1016 | – | 610 |
1050×950 | 42×38 | 1067×965 | – | 610 |
1050×900 | 42×36 | 1067×914 | – | 610 |
1050×850 | 42×34 | 1067×864 | – | 610 |
1100×1050 | 44×42 | 1118×1067 | – | 610 |
1100×1000 | 44×40 | 1118×1016 | 1120×1020 | 610 |
1100×950 | 44×38 | 1118×965 | – | 610 |
1100×900 | 44×36 | 1118×914 | 1220×920 | 610 |
1150×1100 | 46×44 | 1168×1118 | – | 711 |
1150×1050 | 46×42 | 1168×1067 | – | 711 |
1150×1000 | 46×40 | 1168×1016 | – | 711 |
1150×950 | 46×38 | 1168×965 | – | 711 |
1200×1150 | 48×46 | 1220×1168 | – | 711 |
1200×1100 | 48×44 | 1220×1118 | 1220×1120 | 711 |
1200×1050 | 48×42 | 1220×1067 | – | 711 |
1200×1000 | 48×40 | 1220×1016 | 1220×1020 | 711 |
What’s the difference between CONCENTRIC REDUCER และ ECCENTRIC REDUCER ?
CONCENTRIC REDUCER
The open ends of a concentric reducer are aligned and centered one to the other. โดยทั่วไป, this type of pipe reducer is used to modify the bore size of the pipeline by two (maximum three) measures, to avoid an excessive pressure drop in the pipeline.
If a larger reduction is needed, then a sequence of reducers shall be used to have a smooth and gradual adjustment of the pipeline bore size (เทียบกับ. a drastic change).
For small bore size reductions, reducing flanges may be an alternative to buttweld reducers.
ECCENTRIC REDUCERThe open ends of an eccentric reducer are in an “offset” position one to the other.
Eccentric reducers are used, generally, for pipelines installed in a horizontal position (whereas concentric reducers are used for pipelines installed vertically or for the inlets of suction pumps, as top flat eccentric reducers).
PIPE REDUCERS MANUFACTURING PROCESS
CONCENTRIC VS ECCENTRIC REDUCER
The key difference between concentric vs eccentric reducer is the centricity of the inlet vs. the outlet of the fitting, which is perfect for a concentric reducer and offset of an eccentric reducer.
BW REDUCER MANUFACTURING PROCESS
Cold forming is the most common manufacturing process for seamless eccentric/concentric reducers (welded reducers are produced with the single or double seam weld process):