異徑管
- 產品介紹
- 材質
尺寸： 1/2“ -48”
壁厚： SCH5S-SCHXXS
材質： 特殊合金，超級雙相不銹鋼，不銹鋼，碳鋼，鈦
標準： ASME B16.9，ASME B16.28，MSS SP43，MSS SP75
同心異徑管是一種用於減小管道尺寸的配件。同心異徑管是泵和管架附近的管道中最常用的偏心異徑管。
同心異徑管的開口端對齊並居中放置。通常，這種類型的管道減壓器用於通過兩種（最多三個）措施來修改管道的孔徑，以避免管道中的壓力降過大。
如果需要更大的減小，則應使用一系列的減小器來平滑，逐步地調節管道內徑（相對於急劇變化）。
偏心異徑管可以是頂部扁平（“ TF”）或底部扁平（“ BF”）。
底部扁平偏心異徑管類型用於管架（異徑管的底部是平坦的，並且與較大尺寸的運行管處於同一高度），而頂部扁平異徑管類型用於管道抽吸泵的入口，如如下圖所示（此設置可防止在管道中形成蒸汽阱）：
集中式與偏心式異徑管
Table of Contents
同心偏心異徑管之間的主要區別是配件的入口與出口的中心度，這對於同心異徑管和偏心異徑管的補償是完美的。
BW異徑管製造過程
冷成形是無縫偏心/同心異徑管的最常見製造工藝（焊接異徑管是通過單縫或雙縫焊接工藝生產的）：
冷成型
焊接方式
資料來源：TK Bend
Buttweld異徑管的重量
減重器同心和偏心規格表STD
| NPS | LBS | KG |
| 3/4-1/2 | 0.17 | 0.08 |
| 3/4-3/8 | 0.15 | 0.07 |
| 1-3/4 | 0.4 | 0.18 |
| 1-1/2 | 0.4 | 0.18 |
| 1.1/4-1 | 0.5 | 0.23 |
| 1.1/4-3/4 | 0.4 | 0.18 |
| 1.1/4-1/2 | 0.4 | 0.18 |
| 1.1/2-1.1/4 | 0.7 | 0.32 |
| 1.1/2-1 | 0.62 | 0.28 |
| 1.1/2-3/4 | 0.54 | 0.24 |
| 1.1/2-1/2 | 0.5 | 0.23 |
| 2-1.1/2 | 0.9 | 0.41 |
| 2-1.1/4 | 0.84 | 0.38 |
| 2-1 | 0.76 | 0.34 |
| 2-3/4 | 0.7 | 0.32 |
| 2.1/2-2 | 1.5 | 0.68 |
| 2.1/2-1.1/2 | 1.38 | 0.63 |
| 2.1/2-1.1/4 | 1.25 | 0.57 |
| 2.1/2-1 | 1.25 | 0.57 |
| 3-2.1/2 | 2 | 0.91 |
| 3-2 | 1.8 | 0.82 |
| 3-1.1/2 | 1.7 | 0.77 |
| 3-1.1/4 | 1.6 | 0.73 |
| 3.1/2-3 | 3.15 | 1.43 |
| 3.1/2-2.1/2 | 2.88 | 1.31 |
| 3.1/2-2 | 2.75 | 1.25 |
| 3.1/2-1.1/2 | 2.5 | 1.13 |
| 3.1/2-1.1/4 | 2.4 | 1.09 |
| 4-3.1/2 | 3.5 | 1.59 |
| 4-3 | 3.38 | 1.53 |
| 4-2.1/2 | 3.25 | 1.47 |
| 4-2 | 3 | 1.36 |
| 4-1.1/2 | 2.88 | 1.31 |
| 5-4 | 6 | 2.72 |
| 5-3.1/2 | 5.75 | 2.61 |
| 5-3 | 5.5 | 2.49 |
| 5-2.1/2 | 5.25 | 2.38 |
| 5-2 | 5 | 2.27 |
| 6-5 | 8.5 | 3.86 |
| 6-4 | 8.25 | 3.74 |
| 6-3.1/2 | 8.25 | 3.74 |
| 6-3 | 8 | 3.63 |
| 6-2.1/2 | 7.25 | 3.29 |
| 8-6 | 13.2 | 5.99 |
| 8-5 | 12 | 5.44 |
| 8-4 | 11 | 4.99 |
| 8-3.1/2 | 11 | 4.99 |
| 10-8 | 22 | 9.98 |
| 10-6 | 21.5 | 9.75 |
| 10-5 | 21 | 9.53 |
| 10-4 | 20 | 9.07 |
| 12-10 | 34 | 15.42 |
| 12-8 | 32 | 14.51 |
| 12-6 | 31 | 14.06 |
| 12-5 | 30 | 13.61 |
| 14-12 | 60 | 27.22 |
| 14-10 | 59.2 | 26.85 |
| 14-8 | 58.5 | 26.54 |
| 14-6 | 58 | 26.31 |
| 16-14 | 71 | 32.21 |
| 16-12 | 70 | 31.75 |
| 16-10 | 69.5 | 31.52 |
| 16-8 | 68.5 | 31.07 |
| 16-6 | – | – |
| 18-16 | 85 | 38.56 |
| 18-14 | 84 | 38.1 |
| 18-12 | 83 | 37.65 |
| 18-10 | 82 | 37.19 |
| 18-8 | – | – |
| 20-18 | 125 | 56.7 |
| 20-16 | 124 | 56.25 |
| 20-14 | 122 | 55.34 |
| 20-12 | 120 | 54.43 |
| 20-10 | – | – |
| 20-8 | – | – |
| 22-20 | 142 | 64.41 |
| 22-18 | 138 | 62.6 |
| 22-16 | 131 | 59.42 |
| 22-14 | 123 | 55.79 |
| 22-12 | – | – |
| 22-10 | – | – |
| 24-22 | – | – |
| 24-20 | 150 | 68.04 |
| 24-18 | 148 | 67.13 |
| 24-16 | 145 | 65.77 |
| 24-14 | – | – |
| 24-12 | – | – |
| 24-10 | – | – |
| 26-24 | 207 | 93.89 |
| 26-22 | 200 | 90.72 |
| 26-20 | 190 | 86.18 |
| 26-18 | 182 | 82.55 |
| 26-16 | – | – |
| 26-14 | – | – |
| 26-12 | – | – |
| 28-26 | 224 | 101.6 |
| 28-24 | 216 | 97.98 |
| 28-22 | 210 | 95.25 |
| 28-20 | 199 | 90.26 |
| 30-28 | 241 | 109.32 |
| 30-26 | 232 | 105.23 |
| 30-24 | 224 | 101.6 |
| 30-22 | 220 | 99.79 |
| 30-20 | 220 | 99.79 |
| NPS | LBS | KG |
注意：
- 所有重量均以磅和千克為單位，並且為近似值或估計值。
減重器同心和偏心規格表XS
| NPS | LBS | KG |
| 3/4-1/2 | 0.22 | 0.1 |
| 3/4-3/8 | 0.2 | 0.09 |
| 1-3/4 | 0.45 | 0.2 |
| 1-1/2 | 0.45 | 0.2 |
| 1.1/4-1 | 0.5 | 0.23 |
| 1.1/4-3/4 | 0.5 | 0.23 |
| 1.1/4-1/2 | 0.5 | 0.23 |
| 1.1/2-1.1/4 | 0.78 | 0.35 |
| 1.1/2-1 | 0.75 | 0.34 |
| 1.1/2-3/4 | 0.7 | 0.32 |
| 1.1/2-1/2 | 0.65 | 0.29 |
| 2-1.1/2 | 1.2 | 0.54 |
| 2-1.1/4 | 1.15 | 0.52 |
| 2-1 | 1.1 | 0.5 |
| 2-3/4 | 1 | 0.45 |
| 2.1/2-2 | 2 | 0.91 |
| 2.1/2-1.1/2 | 1.9 | 0.86 |
| 2.1/2-1.1/4 | 1.85 | 0.84 |
| 2.1/2-1 | 1.75 | 0.79 |
| 3-2.1/2 | 2.75 | 1.25 |
| 3-2 | 2.6 | 1.18 |
| 3-1.1/2 | 2.5 | 1.13 |
| 3-1.1/4 | 2.4 | 1.09 |
| 3.1/2-3 | 4 | 1.81 |
| 3.1/2-2.1/2 | 3.5 | 1.59 |
| 3.1/2-2 | 3.5 | 1.59 |
| 3.1/2-1.1/2 | 3.25 | 1.47 |
| 3.1/2-1.1/4 | 3.25 | 1.47 |
| 4-3.1/2 | 4.75 | 2.15 |
| 4-3 | 4.5 | 2.04 |
| 4-2.1/2 | 4.38 | 1.99 |
| 4-2 | 4.25 | 1.93 |
| 4-1.1/2 | 4 | 1.81 |
| 5-4 | 8.25 | 3.74 |
| 5-3.1/2 | 7.75 | 3.52 |
| 5-3 | 7.5 | 3.4 |
| 5-2.1/2 | 7 | 3.18 |
| 5-2 | 6.5 | 2.95 |
| 6-5 | 12 | 5.44 |
| 6-4 | 11.5 | 5.22 |
| 6-3.1/2 | 11 | 4.99 |
| 6-3 | 10.5 | 4.76 |
| 6-2.1/2 | 10 | 4.54 |
| 8-6 | 18.7 | 8.48 |
| 8-5 | 18 | 8.16 |
| 8-4 | 17 | 7.71 |
| 8-3.1/2 | 16.5 | 7.48 |
| 10-8 | 29.5 | 13.38 |
| 10-6 | 29.5 | 13.38 |
| 10-5 | 28 | 12.7 |
| 10-4 | 25.5 | 11.57 |
| 12-10 | 43.5 | 19.73 |
| 12-8 | 42 | 19.05 |
| 12-6 | 40 | 18.14 |
| 12-5 | 39 | 17.69 |
| 14-12 | 80 | 36.29 |
| 14-10 | 79.2 | 35.92 |
| 14-8 | 78.5 | 35.61 |
| 14-6 | 78 | 35.38 |
| 16-14 | 91 | 41.28 |
| 16-12 | 90 | 40.82 |
| 16-10 | 89 | 40.37 |
| 16-8 | 88.5 | 40.14 |
| 16-6 | – | – |
| 18-16 | 115 | 52.16 |
| 18-14 | 114 | 51.71 |
| 18-12 | 113 | 51.26 |
| 18-10 | 112 | 50.8 |
| 18-8 | – | – |
| 20-18 | 170 | 77.11 |
| 20-16 | 169 | 76.66 |
| 20-14 | 168 | 76.2 |
| 20-12 | 167 | 75.75 |
| 20-10 | – | – |
| 20-8 | – | – |
| 22-20 | 186 | 84.37 |
| 22-18 | 182 | 82.55 |
| 22-16 | 173 | 78.47 |
| 22-14 | 163 | 73.94 |
| 22-12 | – | – |
| 22-10 | – | – |
| 24-22 | – | – |
| 24-20 | 200 | 90.72 |
| 24-18 | 195 | 88.45 |
| 24-16 | 190 | 86.18 |
| 24-14 | – | – |
| 24-12 | – | – |
| 24-10 | – | – |
| 26-24 | 276 | 125.19 |
| 26-22 | 272 | 123.38 |
| 26-20 | 253 | 114.76 |
| 26-18 | 242 | 109.77 |
| 26-16 | – | – |
| 26-14 | – | – |
| 26-12 | – | – |
| 28-26 | 299 | 135.62 |
| 28-24 | 288 | 130.63 |
| 28-22 | 250 | 113.4 |
| 28-20 | 264 | 119.75 |
| 30-28 | 322 | 146.06 |
| 30-26 | 310 | 140.61 |
| 30-24 | 299 | 135.62 |
| 30-22 | 285 | 129.27 |
| 30-20 | 274 | 124.28 |
| NPS | LBS | KG |
注意：
- 所有重量均以磅和千克為單位，並且為近似值或估計值。
減重器集中/偏心規格表160
| NPS | LBS | KG |
| 3/4-1/2 | 0.28 | 0.13 |
| 3/4-3/8 | 0.24 | 0.11 |
| 1-3/4 | 0.5 | 0.23 |
| 1-1/2 | 0.5 | 0.23 |
| 1.1/4-1 | 0.65 | 0.29 |
| 1.1/4-3/4 | 0.65 | 0.29 |
| 1.1/4-1/2 | 0.6 | 0.27 |
| 1.1/2-1.1/4 | 0.95 | 0.43 |
| 1.1/2-1 | 0.8 | 0.36 |
| 1.1/2-3/4 | 0.75 | 0.34 |
| 1.1/2-1/2 | 0.73 | 0.33 |
| 2-1.1/2 | 1.6 | 0.73 |
| 2-1.1/4 | 1.5 | 0.68 |
| 2-1 | 1.5 | 0.68 |
| 2-3/4 | 1.45 | 0.66 |
| 2.1/2-2 | 2.5 | 1.13 |
| 2.1/2-1.1/2 | 2.25 | 1.02 |
| 2.1/2-1.1/4 | 2.25 | 1.02 |
| 2.1/2-1 | 2.2 | 1 |
| 3-2.1/2 | 3.7 | 1.68 |
| 3-2 | 3.4 | 1.54 |
| 3-1.1/2 | 3.2 | 1.45 |
| 3-1.1/4 | 3.1 | 1.41 |
| 3.1/2-3 | – | – |
| 3.1/2-2.1/2 | – | – |
| 3.1/2-2 | – | – |
| 3.1/2-1.1/2 | – | – |
| 3.1/2-1.1/4 | – | – |
| 4-3.1/2 | – | – |
| 4-3 | 6.4 | 2.9 |
| 4-2.1/2 | 5.5 | 2.49 |
| 4-2 | 5.4 | 2.45 |
| 4-1.1/2 | 5.25 | 2.38 |
| 5-4 | 12.5 | 5.67 |
| 5-3.1/2 | – | – |
| 5-3 | 11 | 4.99 |
| 5-2.1/2 | 10.5 | 4.76 |
| 5-2 | 10 | 4.54 |
| 6-5 | 18.75 | 8.5 |
| 6-4 | 16.5 | 7.48 |
| 6-3.1/2 | – | – |
| 6-3 | 15.5 | 7.03 |
| 6-2.1/2 | 15 | 6.8 |
| 8-6 | 31 | 14.06 |
| 8-5 | 27.2 | 12.34 |
| 8-4 | 23.5 | 10.66 |
| 8-3.1/2 | – | – |
| 10-8 | 57.5 | 26.08 |
| 10-6 | 54 | 24.49 |
| 10-5 | 52 | 23.59 |
| 10-4 | 50 | 22.68 |
| 12-10 | 96 | 43.54 |
| 12-8 | 87 | 39.46 |
| 12-6 | 83 | 37.65 |
| 12-5 | 80 | 36.29 |
| NPS | LBS | KG |
注意：
- 所有重量均以磅和千克為單位，並且為近似值或估計值。
減重器集中/偏心規格表XXS
| NPS | LBS | KG |
| 1-3/4 | 0.8 | 0.36 |
| 1-1/2 | 0.75 | 0.34 |
| 1.1/4-1 | 1 | 0.45 |
| 1.1/4-3/4 | 1 | 0.45 |
| 1.1/4-1/2 | 1 | 0.45 |
| 1.1/2-1.1/4 | 1.5 | 0.68 |
| 1.1/2-1 | 1.5 | 0.68 |
| 1.1/2-3/4 | 1.38 | 0.63 |
| 1.1/2-1/2 | 1.25 | 0.57 |
| 2-1.1/2 | 2.38 | 1.08 |
| 2-1.1/4 | 2.25 | 1.02 |
| 2-1 | 2.15 | 0.98 |
| 2-3/4 | 2 | 0.91 |
| 2.1/2-2 | 4 | 1.81 |
| 2.1/2-1.1/2 | 3.9 | 1.77 |
| 2.1/2-1.1/4 | 3.6 | 1.63 |
| 2.1/2-1 | 3.5 | 1.59 |
| 3-2.1/2 | 6 | 2.72 |
| 3-2 | 5 | 2.27 |
| 3-1.1/2 | 4.9 | 2.22 |
| 3-1.1/4 | 4.75 | 2.15 |
| 3.1/2-3 | 8 | 3.63 |
| 3.1/2-2.1/2 | 8 | 3.63 |
| 3.1/2-2 | 7 | 3.18 |
| 3.1/2-1.1/2 | 7 | 3.18 |
| 3.1/2-1.1/4 | 7 | 3.18 |
| 4-3.1/2 | 9 | 4.08 |
| 4-3 | 9 | 4.08 |
| 4-2.1/2 | 8.5 | 3.86 |
| 4-2 | 8.25 | 3.74 |
| 4-1.1/2 | 8 | 3.63 |
| 5-4 | 16 | 7.26 |
| 5-3.1/2 | 15 | 6.8 |
| 5-3 | 14.5 | 6.58 |
| 5-2.1/2 | 13.75 | 6.24 |
| 5-2 | 14 | 6.35 |
| 6-5 | 23 | 10.43 |
| 6-4 | 22 | 9.98 |
| 6-3.1/2 | 21 | 9.53 |
| 6-3 | 20 | 9.07 |
| 6-2.1/2 | 19 | 8.62 |
| 8-6 | 36 | 16.33 |
| 8-5 | 35 | 15.88 |
| 8-4 | 33 | 14.97 |
| 8-3.1/2 | 32 | 14.51 |
| NPS | LBS | KG |
注意：
- 所有重量均以磅和千克為單位，並且為近似值或估計值。
資料來源：wermac.org
管道配件尺寸公差符合ASME B16.9
| NOMINAL PIPE SIZE NPS | 角度公差 | 角度公差 | 所有尺寸均以英寸為單位。公差為正負，除註明的負數。 |
|---|---|---|---|
| Off Angle Q | Off Plane P |
（1）不圓度是正公差和負公差的絕對值之和。 （2）此公差可能不適用於需要增加壁厚以滿足ASME B16.9設計要求的成型配件的局部區域。 （3）內徑和兩端的公稱壁厚應由買方規定。（4）除非買方另有規定，否則這些公差適用於無標稱內徑，該公稱內徑等於公稱外徑之間的差和兩倍的標稱壁厚。 |
|
| ½ to 4 | 0.03 | 0.06 | |
| 5 to 8 | 0.06 | 0.12 | |
| 10 to 12 | 0.09 | 0.19 | |
| 14 to 16 | 0.09 | 0.25 | |
| 18 to 24 | 0.12 | 0.38 | |
| 26 to 30 | 0.19 | 0.38 | |
| 32 to 42 | 0.19 | 0.50 | |
| 44 to 48 | 0.18 | 0.75 |
Summary
Aggregate Rating
5 based on votes
Brand Name
Yaang
Product Name
Concentric Reducer
Price
USD 1-10000
Product Availability
Pre-Order Only
材質
特殊合金
- HASTELLOY®X
- MONEL®R-405
- MONEL®K-500
- HASTELLOY®C-276
- HASTELLOY®C-22
- HASTELLOY®B-2
- INCOLOY®825
- INCOLOY®800H /800HT®
- INCONEL®718
- INCONEL®合金625
- INCONEL®合金601
- INCONEL®合金600
- MONEL®合金400
合金20
- 鎳200/201
- MONEL®R-405
- MONEL®K-500
- MONEL®合金400
- INCONEL®718
- INCONEL®合金625
- INCONEL®合金601
- INCONEL®合金600
- INCOLOY®825
- HASTELLOY®X
- HASTELLOY®C-276
- HASTELLOY®C-22
- HASTELLOY®B-2
- INCOLOY®800H /800HT®
- HASTELLOY®B-3
雙相不銹鋼
- ZERON®100，超級雙相不銹鋼
- 超級雙工S32760
- LDX2101®，雙相鋼
- 雙面S31803
- 超級雙工2507
- 雙面膠2205
不銹鋼
- 不銹鋼氮50HS
- 不銹鋼氮60
- 不銹鋼氮50
- 不銹鋼13-8PH
- 不銹鋼15-5PH
- 不銹鋼PRODEC 303
- 不銹鋼303
- 不銹鋼446
- 不銹鋼410S
- 不銹鋼410
- 不銹鋼304-304H
- 不銹鋼17-4
- 不銹鋼347
- 不銹鋼440C
- 309不銹鋼
- 不銹鋼316-316l
- 不銹鋼AL-6XN®
- 不銹鋼330
- 不銹鋼321
- 317L不銹鋼
- 不銹鋼310 / 310S
- 304L不銹鋼
- 304不銹鋼
- 不銹鋼253 MA
碳素鋼
- 碳鋼製品
鈦
- 10V-2Fe-3鋁
- 6Al-4V
- 6Al-4V STA
- 6Al-4V ELI
- 6Al-2Sn-4Zr-2Mo
