Piggable Pipe Bends | ASME B16.9 Butt-Weld Fittings | Carbon Steel, Stainless Steel, Duplex & Nickel Alloy Bends
Elite manufactures and supplies Piggable Bends for pipeline systems designed to accommodate pipeline inspection gauges (PIGs) used for cleaning, inspection and maintenance. These bends are engineered to provide a smooth change in pipeline direction while maintaining suitable internal geometry for pig passage.
Elite offers Piggable Bends in carbon steel, stainless steel, alloy steel, duplex, super duplex, copper-nickel, nickel alloys and other project-specified materials. Available configurations include seamless, welded and fabricated bends with different diameters, wall thicknesses, bend radii and angles.
Our Piggable Bends are suitable for oil and gas pipelines, transmission systems, petrochemical facilities, refineries and other industrial applications where pipeline integrity and pigging operations are important. Bend geometry, internal diameter, ovality, weld profile and radius can be specified according to the pig manufacturer’s requirements and project specifications.
| Standard & General Types | Material & Specialty Options |
|---|---|
| Butt-Weld Piggable Bends | Stainless Steel Piggable Bends |
| ASME B16.9 Piggable Bends | SS 304 / 304L Piggable Bends |
| 90° Piggable Bends | SS 316 / 316L Piggable Bends |
| 45° Piggable Bends | Carbon Steel Piggable Bends |
| 180° Return Bends | Alloy Steel Piggable Bends |
| Seamless Piggable Bends | Duplex Steel Piggable Bends |
| Welded Piggable Bends | Super Duplex Piggable Bends |
| Fabricated Piggable Bends | Copper-Nickel Piggable Bends |
| Long-Radius Piggable Bends | Monel Piggable Bends |
| Custom-Radius Piggable Bends | Inconel Piggable Bends |
| Pipeline Induction Bends | Hastelloy Piggable Bends |
| Project-Specified Pipe Bends | Titanium Piggable Bends |
| Specification | Details | |
|---|---|---|
| Product Type | Piggable Pipe Bends | |
| Applicable Standard | ASME B16.9, where applicable | |
| Other Standards | ASME B16.28 and MSS SP-43, where applicable | |
| Size Range | According to product design and project requirements | |
| Construction | Seamless / Welded / Fabricated / Induction Bent | |
| Bend Radius | 1D, 2D, 3D, 5D, 6D, 8D, 10D or custom | |
| Bend Angles | 15°, 30°, 45°, 60°, 90°, 135° and 180°, subject to design | |
| End Connection | Butt-Weld | |
| Wall Thickness | According to specified schedule or project requirements | |
| Internal Geometry | Specified for pig passage | |
| Materials | Carbon Steel, Stainless Steel, Alloy Steel, Duplex and Specialty Alloys | |
| Inspection | According to approved inspection and test plan | |
| Marking | Size, material grade, schedule and heat number, as applicable | |
| Documentation | MTC, COC and project-specific quality records | |
| Note: Piggability depends on the complete bend geometry and the type of pig used. Radius, bend angle, internal diameter, ovality and weld profile should be confirmed against the pipeline design and pig manufacturer's requirements. ASME B16.9 covers factory-made wrought butt-welding fittings; larger-radius pipeline bends may require other applicable standards and approved project drawings. | ||
| Custom Requirement | Details |
|---|---|
| Nominal Pipe Size | NPS / DN or project specified |
| Outside Diameter | Standard / Project specified |
| Wall Thickness | Schedule / Project specified |
| Material Grade | Required ASTM/ASME grade |
| Manufacturing Type | Seamless / Welded / Fabricated / Induction Bent |
| Bend Radius | 1D / 2D / 3D / 5D / 6D / 10D / Custom |
| Bend Angle | 15° / 30° / 45° / 60° / 90° / 180° / Custom |
| End Connection | Butt-Weld |
| Internal Diameter | As required for pig passage |
| Ovality Tolerance | Project specified |
| Internal Weld Profile | Project specified |
| Pig Type | Conventional / Intelligent / Project specified |
| Design Standard | Applicable product or pipeline standard |
| Operating Conditions | Pressure and temperature specified |
| NDE Requirements | Project specified |
| Inspection Requirements | ITP / Third-party requirements |
| Documentation | MTC / COC / Quality reports |
| Test / Examination | Availability |
|---|---|
| Chemical Analysis | Material dependent |
| Tensile & Yield Testing | Material dependent |
| Impact Testing | Where required |
| Hardness Testing | As specified |
| Positive Material Identification (PMI) | As specified |
| Ultrasonic Testing (UT) | As specified |
| Magnetic Particle Testing (MT) | As specified |
| Liquid Penetrant Testing (PT) | As specified |
| Radiographic Testing (RT) | Where applicable |
| Dimensional Inspection | Available |
| Bend Radius Verification | As specified |
| Internal Diameter Measurement | As specified |
| Ovality Inspection | As specified |
| Wall-Thickness Measurement | As specified |
| Weld Inspection | For welded products |
| Hydrostatic Testing | Where required |
| Third-Party Inspection | Available |
| Document | Availability | |
|---|---|---|
| Material Test Certificate (MTC) | Available | |
| EN 10204 3.1 Certificate | Where specified | |
| EN 10204 3.2 Certificate | Where specified | |
| Certificate of Conformance (COC) | Available | |
| Dimensional Inspection Report | Available | |
| Chemical Analysis Report | Material dependent | |
| Mechanical Test Report | Material dependent | |
| Heat Treatment Records Where applicable | ||
| PMI Report | As specified | |
| NDE Reports | As specified | |
| Weld Inspection Records | For welded products | |
| Quality Assurance Plan (QAP) | Project specific | |
| Inspection & Test Plan (ITP) | Project specific | |
| Certificate of Origin | Where required | |
| Packing List | Available | |
| Material Traceability Records | Maintained | |
| Third-Party Inspection Records | Where specified | |
| Approved Manufacturing Drawings | Where required | |
Stainless Steel Piggable Bends
ASTM A403 WP304/304L, WP304H, WP316/316L, WP316H, WP317L, WP321, WP347 and other applicable stainless steel grades.
Duplex & Super Duplex Piggable Bends
ASTM A815 duplex and super duplex grades, including applicable UNS S31803, S32205, S32750 and S32760, subject to the required product specification.
Carbon Steel Piggable Bends
ASTM A234 WPB and other applicable grades, together with ASTM A860 WPHY grades such as WPHY 42, WPHY 46, WPHY 52, WPHY 60, WPHY 65 and WPHY 70, where specified for the application.
Low-Temperature Carbon Steel Piggable Bends
ASTM A420 WPL6 and other applicable grades, selected according to design temperature and project requirements.
Alloy Steel Piggable Bends
ASTM A234 WP1, WP5, WP9, WP11, WP12, WP22 and WP91, subject to the applicable material and manufacturing specifications.
Nickel Alloy Piggable Bends
Nickel 200/201, Monel 400/K500, Inconel 600/601/625/800/825, Hastelloy C276 and Alloy 20, according to the applicable material specification and manufacturing requirements.
Copper-Nickel Piggable Bends
UNS C70600 (90/10 copper-nickel) and C71500 (70/30 copper-nickel), where suitable for the specified product design and manufacturing route.
Titanium & Specialty Alloy Piggable Bends
Titanium and other specialty alloys can be supplied according to customer specifications, corrosion requirements, operating conditions and project needs.
Material selection depends on operating pressure, temperature, process fluid, corrosion conditions, mechanical properties and applicable pipeline codes.
Long-Radius Piggable Bends
Designed with a larger radius to provide a smoother change in pipeline direction and facilitate passage of compatible pipeline pigs.
90° Piggable Bends
Used for 90-degree directional changes in pipeline systems, subject to the specified radius and pigging requirements.
45° Piggable Bends
Used where a 45-degree change in pipeline direction is required while maintaining suitable internal geometry for pig passage.
180° Return Bends
Designed for return-flow arrangements where permitted by the pipeline design and pigging equipment requirements.
Seamless Piggable Bends
Manufactured from seamless pipe or suitable tubular material where required by the applicable product specification.
Welded Piggable Bends
Produced using suitable welded pipe or fabrication methods, subject to the specified manufacturing and inspection requirements.
Induction Piggable Bends
Manufactured through controlled induction bending for selected pipeline applications requiring specified radii, diameters and wall thicknesses.
Custom Piggable Bends
Available with project-specific radii, angles, diameters, wall thicknesses and end preparations according to approved drawings and pigging requirements.
Elite’s manufacturing and quality processes can include:
Piggable Bends are used in pipeline systems where internal inspection, cleaning and maintenance operations are performed using compatible pipeline pigs.
For quotation, please provide:
Pipe Size + Outside Diameter + Wall Thickness + Material Grade + Bend Radius + Bend Angle + Pigging Requirements + Manufacturing Type + Design Standard + Quantity + Inspection Requirements
Example:
12″ NPS Piggable Bend, ASTM A234 WPB Carbon Steel, 90° Bend, 5D Radius, Butt-Weld Ends, Internal Diameter and Ovality Requirements According to the Approved Pigging Specification, Wall Thickness as Specified, Project-Specific Inspection and EN 10204 3.1 Documentation.
