Zhengzhou Huitong Pipeline Equipment Co.,Ltd.
| Payment Terms | L/C,T/T, Western Union |
| Supply Ability | 1000 pcs per month |
| Delivery Time | 30-35 working days |
| Packaging Details | wooden case, wooden pallet |
| Standard | ASME B16.9 / ASME B16.28 / ASME B16.49 |
| Name | Long Radius Short Radius Band Elbow Inconel 625 Nickel Alloy Pipe Fittings |
| Size | 1/2"-48" |
| Wall thickness | SCH5S-SCHXXS |
| Type | 30° 45° 60° 90° Long Radius Short Radius |
| Material | Nickel alloy/stainless steel/duplex stainless |
| Brand Name | HT |
| Model Number | Long Radius Short Radius Band Elbow Inconel 625 Nickel Alloy Pipe Fittings |
| Certification | ISO9001 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C,T/T, Western Union | Supply Ability | 1000 pcs per month |
| Delivery Time | 30-35 working days | Packaging Details | wooden case, wooden pallet |
| Standard | ASME B16.9 / ASME B16.28 / ASME B16.49 | Name | Long Radius Short Radius Band Elbow Inconel 625 Nickel Alloy Pipe Fittings |
| Size | 1/2"-48" | Wall thickness | SCH5S-SCHXXS |
| Type | 30° 45° 60° 90° Long Radius Short Radius | Material | Nickel alloy/stainless steel/duplex stainless |
| Brand Name | HT | Model Number | Long Radius Short Radius Band Elbow Inconel 625 Nickel Alloy Pipe Fittings |
| Certification | ISO9001 | Place of Origin | China |
| High Light | threaded steel bushing ，butt weld pipe fittings | ||
Long Radius Short Radius Band Elbow Inconel 625 Nickel Alloy Pipe Fittings
1.What’s the difference between LR elbow and SR elbow?
Both long radius and short radius elbows can be used to connect pipes and also have the same inner and outer diameter, angle and wall thickness. But you don't seem to see any difference from their because of its similar appearance. In previous article,we introduced where to buy DIN 2605 elbows,Today I will introduce their differences of LR elbow and SR elbow.
Elbows are divided into two groups which define the distance over which they change direction: the center line of one end to the opposite face. This is known as the "center to face" distance and is equivalent to the radius through which the elbow is bent.
The center to face distance for a "long" radius elbow, the LR radius elbows have a center to end distance that is 1.5 times the NPS in inches(R=1.5D),while the SR radius is equal to the NPS in inches(R=1.0D). The 45, 90°and 180°elbows, all three in the "long radius" version, and in addition the 90° and 180° elbows both in the "short radius" version.
Dimensions, dimensional tolerances etc. for long and short radius elbows are defined in ASME B16.9.ASME B16.9 standardizes the center to face dimensions and some "squareness" dimensional tolerances.
Take the 180° LR & SR NPS 6 Butt Weld Elbows according to ASME B16.9 Dimensions for example:
| NPS | O. D. (D) | 180° Long Rad | 180° Short Rad | ||
| Center to Center | Back to Face(K) | Center to Center(O) | Back to Face(K) | ||
| 6 | 168.3 | 457 | 313 | 305 | 237 |
LR or SR elbow to use?
1.The short radius elbow is used in tight areas, while the long radius is used under normal working conditions.
2.The long radius elbow is better than short radius elbow when it is scoured and worn.
3.The position of the two elbows should be determined according to the practical conditions, because the positions are necessary.
2.Dimensions Butt Weld Elbows 45°-90° LR and 3D ASME B16.9
| NPS | O.D. D | 90° Long Rad Center to End A | 45° Long Rad Center to End B | 90° 3D Center to End A | 45° 3D Center to End B |
| 1/2 | 21.3 | 38 | 16 | ||
| 3/4 | 26.7 | 38 | 19 | 57 | 24 |
| 1 | 33.4 | 38 | 22 | 76 | 31 |
| 1.1/4 | 42.2 | 48 | 25 | 95 | 39 |
| 1.1/2 | 48.3 | 57 | 29 | 114 | 47 |
| 2 | 60.3 | 76 | 35 | 152 | 63 |
| 2.1/2 | 73 | 95 | 44 | 190 | 79 |
| 3 | 88.9 | 114 | 51 | 229 | 95 |
| 3.1/2 | 101.6 | 133 | 57 | 267 | 111 |
| 4 | 114.3 | 152 | 64 | 305 | 127 |
| 5 | 141.3 | 190 | 79 | 381 | 157 |
| 6 | 168.3 | 229 | 95 | 457 | 189 |
| 8 | 219.1 | 305 | 127 | 610 | 252 |
| 10 | 273 | 381 | 159 | 762 | 316 |
| 12 | 323.8 | 457 | 190 | 914 | 378 |
| 14 | 355.6 | 533 | 222 | 1067 | 441 |
| 16 | 406.4 | 610 | 254 | 1219 | 505 |
| NPS | O.D. D | 90° Long Rad Center to End A | 45° Long Rad Center to End B | 90° 3D Center to End A | 45° 3D Center to End B |
| 18 | 457 | 686 | 286 | 1372 | 568 |
| 20 | 508 | 762 | 318 | 1524 | 632 |
| 22 | 559 | 838 | 343 | 1676 | 694 |
| 24 | 610 | 914 | 381 | 1829 | 757 |
| 26 | 660 | 991 | 406 | 1981 | 821 |
| 28 | 711 | 1067 | 438 | 2134 | 883 |
| 30 | 762 | 1143 | 470 | 2286 | 946 |
| 32 | 813 | 1219 | 502 | 2438 | 1010 |
| 34 | 864 | 1295 | 533 | 2591 | 1073 |
| 36 | 914 | 1372 | 565 | 2743 | 1135 |
| 38 | 965 | 1448 | 600 | 2896 | 1200 |
| 40 | 1016 | 1524 | 632 | 3048 | 1264 |
| 42 | 1067 | 1600 | 660 | 3200 | 1326 |
| 44 | 1118 | 1676 | 695 | 3353 | 1389 |
| 46 | 1168 | 1753 | 727 | 3505 | 1453 |
| 48 | 1219 | 1829 | 759 | 3658 | 1516 |
Dimensions are in millimeters unless otherwise indicated. Wall thickness (t) must be specified by customer.
Dimensional Tolerances of Butt Weld Elbows - 45° and 90° - LR and 3D - ASME B16.9 -
| Nominal Pipe Size | 1/2 to 2.1/2 | 3 to 3.1/2 | 4 | 5 to 8 |
| Outside Diameter at Bevel (D) | + 1.6 - 0.8 | 1.6 | 1.6 | + 2.4 - 1.6 |
| Inside Diameter at End | 0.8 | 1.6 | 1.6 | 1.6 |
| Center to End LR (A/B) | 2 | 2 | 2 | 2 |
| Center to End 3D (A/B) | 3 | 3 | 3 | 3 |
| Nominal Pipe Size | 10 to 18 | 20 to 24 | 26 to 30 | 32 to 48 |
| Outside Diameter at Bevel (D) | + 4 - 3.2 | + 6.4 - 4.8 | + 6.4 - 4.8 | + 6.4 - 4.8 |
| Inside Diameter at End | 3.2 | 4.8 | + 6.4 - 4.8 | + 6.4 - 4.8 |
| Center to End LR (A/B) | 2 | 2 | 3 | 5 |
| Center to End 3D (A/B) | 3 | 3 | 6 | 6 |
| Wall Thickness (t) | Not less than 87.5% of Nominal Wall Thickness | |||
Dimensional tolerances are in millimeters unless otherwise indicated and are equal ± except as noted.
Note:
MSS SP-43 only covers stainless steel buttweld fittings made for use with Schedule 5S and 10S pipe and Stub Ends suitable for use with Schedule 40S pipe, as defined in ASME B36.19. The dimensions and dimensional tolerances defined in MSS SP-43 are substantially the same as those in ASME B16.9 specifications from NPS 1/2 - NPS 24. Except with regard to the outside diameter at the bevel.
Company Details
Business Type:
Manufacturer,Exporter,Seller
Year Established:
1978
Total Annual:
10000000-20000000
Employee Number:
50~100
Ecer Certification：
Active Member
Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti... Huitong Group was established in 1978. After 38 years'development and innovation,by now,Huitong Group has set up multiple subsidiary companies.Among them,Zhengzhou Huitong Pipe Fitting Co.,Ltd.,with the indepent right of import and export, is mainly engaged in exporting steel pipe and pipe fitti...
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