Smith Fittings, located in Canberra, Australia, is a well-respected manufacturer and supplier of Long Radius and Piggable Bends, crafted for high-performance and precision-critical piping systems. These bends are expertly designed to allow for smooth directional changes in pipelines, all while keeping pressure drops and turbulence to a minimum. This makes them perfect for industries like oil & gas, petrochemicals, water treatment, and energy. Smith Fittings offers Long Radius and Piggable Bends in a variety of materials—including stainless steel, carbon steel, and alloy steels—ensuring they can handle different media, temperatures, and pressure conditions.
Standard – ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43.
DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN : EN10253-1, EN10253-2
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated
Size: 1/2″–60″
Form: Long Radius Bend, Induction Bend, With R=3D, 5D, 6D, 8D, 10D & Customized Bend
Standard – ANSI/ASME :ASTM A403 / ASME SA403, ANSI B16.9, ASME B16.25, ASME B16.28, MSS SP-43.
DIN : DIN2605, DIN2615, DIN2616, DIN2617, DIN28011
EN : EN10253-1, EN10253-2
Schedule : SCH20, SCH30, SCH40, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Type : Seamless / ERW / Welded / Fabricated
Size Range : 2″NB TO 18″ NB ANSI B 16.9 IN
Form: Piggable Bends
Long Radius and Piggable Bends are specifically designed to facilitate the smooth flow of fluids and the movement of pipeline cleaning devices, commonly referred to as pigs. Long Radius Bends typically feature a radius that is 1.5 times the pipe diameter (1.5D), which helps reduce friction and turbulence compared to their short-radius counterparts. Piggable Bends are engineered with precise geometry and smooth inner surfaces to ensure that pigs can move through them without any obstruction. Depending on the material used, these bends can provide tensile strength ranging from 400 to 600 MPa, along with excellent impact resistance and durability under high pressure and temperature conditions, making them suitable for a variety of pipeline systems.
Long Radius Bends usually feature a bend radius that is 1.5 times the pipe diameter, which promotes smoother flow and reduces stress on the piping system. On the other hand, Piggable Bends are specifically engineered to enable the safe and efficient passage of pipeline inspection gauges (often called pigs) that are used for cleaning, monitoring, and maintenance. These bends are manufactured with a precise internal surface finish and a consistent curvature to guarantee that pigs can pass through without any blockages.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Choose Long Redius and Piggable Bend from Smith Fittings for superior quality, exceptional corrosion resistance, and reliable performance in extreme conditions. We offer customized solutions backed by expert support and industry experience.
Long Radius and Piggable Bends offer several key advantages, including smooth internal surfaces that minimize flow turbulence and reduce pressure drops in pipeline systems. Their gentle curves ensure a more efficient flow of fluids, enhancing overall system performance. The durability and resistance to corrosion, heat, and pressure, especially in materials like stainless steel and alloy steel, extend the lifespan of the fittings. Additionally, their ability to accommodate pigs (cleaning tools) ensures easier maintenance and reduces the risk of blockages, making them ideal for complex and demanding piping applications.
Yes, custom sizes for Long Redius and Piggable Bend are available at Smith Fittings. We offer tailored solutions to meet your specific requirements, ensuring optimal performance for your projects. For more information, please contact us at sales@smithfittings.com.
Stainless Steel Long Radius Bend : ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Long Radius Bend : ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Alloy Steel Long Radius Bend : ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
Duplex Steel Long Radius Bend : ASTM A815, ASME SA815 UNS No S31803, S32205
Super Duplex Long Radius Bend : ASTM A815, ASME SA815 UNS No S32750, S32950
Nickel Alloy Long Radius Bend : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.
Low Temperature Carbon Steel Long Radius Bend : ASTM A420 WPL3, A420 WPL6
Stainless Steel Piggable Bend : ASTM A403 WP316/316L, ASTM A403 WP304/304L, ASTM A182 F316L, 304L, DIN 1.4301, DIN1.4306, DIN 1.4401, DIN 1.4404, 304H, 309, 310, 316, 316L, 317L, 321, 347, 904L
Carbon Steel Piggable Bend : ASTM A234, ASME SA234 WPB , WPBW, WPHY 42, WPHY 46, WPHY 52, WPH 60, WPHY 65 & WPHY 70.
Alloy Steel Piggable Bend : ASTM A234, ASME SA234 WP1 / WP5 / WP9 / WP11 / WP22 / WP91
Duplex Steel Piggable Bend : ASTM A815, ASME SA815 UNS No S31803, S32205
Super Duplex Piggable Bend : ASTM A815, ASME SA815 UNS No S32750, S32950
Nickel Alloy Piggable Bend : ASTM B336, ASME SB336, Nickel 200 (UNS No. No2200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II), Cupro-Nickel 70/30, CuNi10Fe1Mn, CuNi30Mn1Fe.
Low Temperature Carbon Steel Piggable Bend : ASTM A420 WPL3, A420 WPL6
| Nominal PN (MPa) | DN | Thread D | Pipe Specification DH×s | L1 | L2 | L3 (Not less than) | L (Not less than) | R |
| 32.0 | 175 | M240×6 | 245×36 | 120 | 130 | 360 | 1095 | 735 |
| 200 | M265×6 | 273×40 | 130 | 140 | 390 | 1209 | 819 | |
| 225 | M320×6 | 325×50 | 175 | 185 | 525 | 1500 | 975 | |
| 250 | M350×6 | 355.6×55 | 195 | 205 | 580 | 1650 | 1070 | |
| 22.0 | 175 | M215×6 | 219×24 | 100 | 110 | 300 | 957 | 657 |
| 200 | M240×6 | 245×26 | 110 | 120 | 330 | 1065 | 735 | |
| 225 | M265×6 | 273×29 | 115 | 125 | 345 | 1164 | 819 | |
| 250 | M295×6 | 299×32 | 120 | 130 | 360 | 1257 | 897 |
The applications for Long Radius and Piggable Bends are extensive, covering pipeline systems in oil & gas transportation, refineries, offshore platforms, chemical plants, and slurry systems. Their thoughtful design helps minimize wear and erosion, facilitates effective cleaning, and maintains flow efficiency in long-distance and high-integrity pipelines. Smith Fittings is committed to ensuring that every bend meets industry standards for dimensional accuracy, weldability, and durability—providing reliable solutions that boost operational performance and safety in demanding infrastructure projects.
Get in touch with one of our Technical Sales Representatives to request a quote or get answers to any questions you may have.
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