Butt Weld Fitting are the most common type of steel fittings used for pipelines above 2 diameter inci. Mereka digunakan untuk mengubah jalur pipa (siku), mengurangi / meningkatkan ukuran alirannya (pengecil), cabang (tee, menyeberang) atau menutupnya (Topi), dan dihubungkan ke pipa dengan pengelasan. Butt welding fittings are available in multiple shapes as elbows, tee, pengecil, Salib, etc and in a wide range of diameters (Dari 1/2 untuk 48 inci), Jadwal (5/5S, 10/10S, 40/40S, 80/80S, XS/XH, XXS, 160, dll) dan nilai materi (the most common are ASTM A234 WPB for carbon steel and ASTM A403 WP 304 untuk 316 for stainless steel wrought fittings). BW fittings are available in seamless and wekded execution (masing-masing < 24 / > 24 inch)
Carbon steel fittings are widely used for linepipes and piping systems in the oil & industri gas dan petrokimia, whereas stainless steel buttweld fittings find extensive application in processes subject to corrosion and erosion (and are also common within the pharmaceutical and food sectors). The material of the pipe shall generally match the material of the connecting butt welded fittings.
Untuk aplikasi khusus, steel fittings are either coated on the outer surface or lined internally.
ANSI / ASME B16.9 – B16.28 This Standard covers overall dimensions, toleransi, peringkat, Pengujian, dan tanda-tanda untuk tempa karbon dan baja paduan buatan pabrik buttwelding fitting NPS 1/2 melalui 48. Ini mencakup kelengkapan dari setiap producible ketebalan dinding. Standar ini tidak mencakup tekanan rendah tahan korosi buttwelding fitting. Lihat MSS SP-43, Tempa Stainless Steel Pantat Pengelasan Fitting. radius siku singkat dan kembali, yang sebelumnya termasuk dalam ASME B16.28-1994, termasuk dalam standar ini. B16.9 adalah untuk digunakan dalam hubungannya dengan peralatan yang dijelaskan dalam volume lain dari seri ASME B16 standar serta dengan standar ASME lainnya, such as the Boiler and Pressure Vessel Code and the B31 Piping Codes”.
NPS | OD, D | Long Radius | Radius pendek | ||
Center-to-Center, itu | Back-to-Face, K | Center-to-Center, itu | Back-to-Face, K | ||
1/2 | 21.3 | 76 | 48 | – | – |
3/4 | 26.7 | 76 | 51 | – | – |
1 | 33.4 | 76 | 56 | 51 | 41 |
1 1/4 | 42.2 | 95 | 70 | 64 | 52 |
1 1/2 | 48.3 | 114 | 83 | 76 | 62 |
2 | 60.3 | 152 | 106 | 102 | 81 |
2 1/2 | 73 | 190 | 132 | 127 | 100 |
3 | 88.9 | 229 | 159 | 152 | 121 |
3 1/2 | 101.6 | 267 | 184 | 178 | 140 |
4 | 114.3 | 305 | 210 | 203 | 159 |
5 | 141.3 | 381 | 262 | 254 | 197 |
6 | 168.3 | 457 | 313 | 305 | 237 |
8 | 219.1 | 610 | 414 | 406 | 313 |
10 | 273 | 762 | 518 | 508 | 391 |
12 | 323.8 | 914 | 619 | 610 | 467 |
14 | 355.6 | 1067 | 711 | 711 | 533 |
16 | 406.4 | 1219 | 813 | 813 | 610 |
18 | 457 | 1372 | 914 | 914 | 686 |
20 | 508 | 1524 | 1016 | 1016 | 762 |
22 | 559 | 1676 | 1118 | 1118 | 838 |
24 | 610 | 1829 | 1219 | 1219 | 914 |
features OF WELDED FITTINGS
DILAS PIPA / fittings connections:
are strong and leak-proof
minimize the pressure drops and the turbolence along the pipeline
memiliki masa kerja yang panjang
The allowable pressure ratings for fittings designed in accordance with the standard ASME B 16.9–1993 may be calculated as for straight seamless pipe in accordance with the rules established in the applicable section of the ASME B 31 codes for pressure piping. Hydrostatic testing of wrought fittings is not required. All fittings shall be capable of withstanding, without leakage, a test pressure equal to that prescribed in the specification for the pipe with which the fitting’s marking identifies.
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Buttweld ASME/ANSI B16.9 Pipe Fittings Available Types
Buttweld ASME/ANSI B16.9 Fittings | Butt Weld B16.9 ASME/ANSI B16.9 Fittings |
ASME B16.9 Butt weld ASME/ANSI B16.9 Fittings | Steel ASME/ANSI B16.9 Fittings |
Stainless Steel ASME/ANSI B16.9 Fittings Suppliers | SS ASME/ANSI B16.9 Fittings |
ANSI B16.9 Buttweld ASME/ANSI B16.9 Fittings Dealer | ASME B16.28 Buttweld ASME/ANSI B16.9 Fittings Exporter |
Welded Butt weld ASME/ANSI B16.9 Fittings Stockholder | Seamless Butt weld ASME/ANSI B16.9 Fittings Distributors |
Carbon Steel ASME/ANSI B16.9 Fittings | High Quality ASME/ANSI B16.9 Fittings Manufacturer |
ASTM A403 Stainless Steel ASME/ANSI B16.9 Fittings | Duplex Steel Buttweld ASME/ANSI B16.9 Fittings |
Super Duplex Steel Buttweld ASME/ANSI B16.9 Fittings | Copper Nickel ASME/ANSI B16.9 Fittings |
High Nickel Alloy ASME/ANSI B16.9 Fittings | Hastelloy ASME/ANSI B16.9 Fittings Stockist |
Titanium Buttweld ASME/ANSI B16.9 Fittings | Inconel Butt weld ASME/ANSI B16.9 Fittings |
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