Lap Joint Stub End
Lap joint stub end is a one of buttweld fittings, it is used with the lap joint flange or loose flange. Lap joint flange with stub end is used for in place of welding flange to reduce the budget as stub end is easy to replaced and low cost maintenance.
Kaysuns provide lap joint stub end in stainless steel, duplex and super duplex steel, nickel base alloy etc. We supply both short type and long type stub end in ASME B16.9, MSS SP-43 and EN/DIN standard etc. Our lap joint stub end are made by seamless pipe, CNC machined with precision dimension and smooth surface. Custom fabrication is available, we can make stub end up to 48″ upon the requirement. All of our materials are available for third party inspection, such as SGS,BV,Lloyd’s,TUV etc.
Capacity
Types:
Short Type, Long Type
Manufacture Standards:
ASME/ANSI B16.9, MSS-SP-43 etc.
Dimension & Wall Thickness:
1/2″ to 24″ (DN15 ~DN600) / SCH5S to SCHXXS
ND, OD & Product Weight
| Nominal Diameter | Outside Diameter OD | Length F | Diameter of Lap Nominal& Maximum G | Radius of Fillet R | Approx Weight (kg/pc) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| SCH10S | SCH40S | ||||||||||
| DN | NPS | Short type | Long type | A Max | B Max | Short type | Long type | Short type | Long type | ||
| 15 | ½ | 21.3 | 50.8 | 76.2 | 35.1 | 3 | 0.75 | 0.062 | 0.084 | 0.079 | 0.106 |
| 20 | 3/4 | 26.7 | 50.8 | 76.2 | 42.9 | 3 | 0.75 | 0.081 | 0.109 | 0.101 | 0.144 |
| 25 | 1 | 33.4 | 50.8 | 101.6 | 50.8 | 3 | 0.75 | 0.134 | 0.233 | 0.160 | 0.279 |
| 32 | 1.1/4 | 42.4 | 50.8 | 101.6 | 63.5 | 5 | 0.75 | 0.178 | 0.307 | 0.225 | 0.386 |
| 40 | 1.1/2 | 48.3 | 50.8 | 101.6 | 73.2 | 6 | 0.75 | 0.213 | 0.358 | 0.279 | 0.467 |
| 50 | 2 | 60.3 | 63.5 | 152.4 | 91.9 | 8 | 0.75 | 0.338 | 0.667 | 0.471 | 0.924 |
| 65 | 2.1/2 | 73.0 | 63.5 | 152.4 | 104.6 | 8 | 0.75 | 0.448 | 0.893 | 0.740 | 1.465 |
| 80 | 3 | 88.9 | 63.5 | 152.4 | 127.0 | 10 | 0.75 | 0.574 | 1.117 | 1.01 | 1.954 |
| 90 | 3.1/2 | 101.6 | 76.2 | 152.4 | 139.7 | 10 | 0.75 | 0.650 | 1.283 | 1.38 | 2.35 |
| 100 | 4 | 114.3 | 76.2 | 152.4 | 157.2 | 11 | 0.75 | 0.870 | 1.474 | 1.68 | 2.822 |
| 125 | 5 | 141.3 | 76.2 | 203.2 | 185.7 | 11 | 1.5 | 1.21 | 2.635 | 2.08 | 4.957 |
| 150 | 6 | 168.3 | 88.9 | 203.0 | 215.9 | 13 | 1.5 | 1.64 | 3.174 | 3.37 | 6.482 |
| 200 | 8 | 219.1 | 101.6 | 203.2 | 269.7 | 13 | 1.5 | 2.65 | 4.607 | 5.67 | 9.819 |
| 250 | 10 | 273.1 | 127 | 254.0 | 323.9 | 13 | 1.5 | 4.38 | 7.843 | 9.55 | 17.023 |
| 300 | 12 | 323.9 | 152.4 | 254.0 | 381.0 | 13 | 1.5 | 6.74 | 10.275 | 13.8 | 21.075 |
| 350 | 14 | 355.6 | 152.4 | 304.8 | 412.8 | 13 | 1.5 | 7.49 | 13.912 | 16.88 | – |
| 400 | 16 | 406.4 | 152.4 | 304.8 | 469.9 | 13 | 1.5 | 8.797 | 16.078 | – | – |
| 450 | 18 | 457.2 | 152.4 | 304.8 | 533.4 | 13 | 1.5 | 10.252 | 18.453 | – | – |
| 500 | 20 | 508.0 | 152.4 | 304.8 | 584.2 | 13 | 1.5 | 13.202 | 23.764 | – | – |
| 550 | 22 | 559.0 | 152.4 | 304.8 | 641.4 | 13 | 1.5 | 14.779 | 26.413 | – | – |
| 600 | 24 | 610.0 | 152.4 | 304.8 | 692.2 | 13 | 1.5 | 18.476 | 33.028 | – | – |
Materials of Lap Joint Stub End:
| Stainless Steel | A403 304/L, 304H, 310S, 316/L, 316Ti, 317/L, 321/H, 347/H, 904L, 254 SMO |
| Duplex & Super Duplex | A815 UNS 31803, UNS 31254, UNS S32750 |
| Nickel Alloys | Alloy200, 400, K500, 600, 625, 800, 825, Alloy 20, Hastelloy B2, C22, C276 |
| Other Grades | Cu70Ni30(C71500), Cu90Ni10(C70600), Titanium Alloy Gr.2, Gr.5, Gr9, Gr12 |
Buttwelded Fittings Catalog
*For more information about lap joint stub end, please contact us when you feel free.
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- RM901 No.22 Tangjiaqiao Road Wenzhou China
- +86 577 8551 1171
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- https://www.kaysuns.com/
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