Butt Weld 180 Degree Elbow
Radius Types:
Long Radius (LR): 1.5D (Most common for smooth flow).
Short Radius (SR): 1D (For tight-space installations).
Size Range: 1/2" – 72" (DN15 – DN1800).
Wall Thickness: SCH 10, SCH 40, SCH 80, SCH 160, SCH XXS (Per ASME B16.9).
Standard Compliance: ASME B16.9, MSS-SP-75, EN10253, DIN 2605.
Material Grades:
Carbon Steel: ASTM A234 WPB
High-Yield: API 5L / ASTM A860 WPHY 42/52/60/65/70.
Stainless Steel: ASTM A403 WP304/L, WP316/L (Corrosion resistant).
Low-Temp: ASTM A420 WPL6.
End Finish: Precisely Beveled Ends (per ASME B16.25) for high-speed welding.
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Product Introduction
Butt Weld 180 Degree Elbow - Professional Pipeline Fitting Solution
Butt Weld 180 Degree Elbow Manufacturer
Hebei Jinsheng Pipe Fitting Manufacturing Co., Ltd specializes in creating high-precision butt weld 180 degree elbow fittings with over 40 a long time of industry skill. Our state-of-the-art 7,000 square meter office conveys uncommon quality return twists with correct center-to-center separations basic for warm exchanger applications. With yearly deals surpassing RMB 100 million and month to month shipments of 50+ holders, we keep up strict dimensional control guaranteeing idealize arrangement with tube sheets without onsite alteration requirements.
Butt Weld 180 Degree Elbow Overview
A product, commonly called a return twist, makes total stream inversion inside negligible space necessities. This basic fitting replaces different components whereas giving smooth, ceaseless stream ways that essentially decrease weight drops in your channeling systems.
Our precision-formed return twists provide correct center-to-center separations basic for warm exchanger bundles, kettle coils, and cooling frameworks. Each fitting keeps up divider thickness astuteness all through the twist sweep, guaranteeing dependable execution beneath high-pressure conditions over carbon steel, stainless steel, and amalgam steel configurations.
Key Features & Advantages
Space-Efficient Plan: Total stream inversion in negligible impression makes these fittings idealize for compact warm exchanger development and warming coil applications.
Reduced Joint Tally: Single fitting kills two circumferential welds compared to utilizing double 90° elbows with straight pipe associations, minimizing spill dangers and review costs.
Precise Dimensional Control: Made with strict center-to-center exactness guaranteeing idealize tube sheet arrangement without field modifications.
Smooth Inside Stream: Mandrel-formed inside surfaces minimize turbulence and weight drops, keeping up ideal stream rates in warming and cooling cycles.
Enhanced Divider Astuteness: Progressed shaping forms keep divider diminishing inside ASME B16.9 details, protecting full weight capacity.
Standard Weld Arrangement: Precision-machined 37.5° inclines per ASME B16.25 guarantee reliable weld quality and quicker establishment.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturing Standards | ASME/ANSI B16.9, DIN 2617, EN 10253 |
| Types Available | Long Radius (LR): 3D, Short Radius (SR): 2D |
| Size Range - Seamless | 1/2" to 24" (DN15 – DN600) |
| Size Range - Welded | 24" to 48" (DN600 – DN1200) |
| Wall Thickness | SCH 10, 20, 40, STD, 80, XS, 160, XXS |
| End Preparation | Square cut or 37.5° beveled ends |
| Center-to-Center (LR) | 3 × Nominal Pipe Size |
| Center-to-Center (SR) | 2 × Nominal Pipe Size |
Standards & Certifications
Our manufacturing processes strictly follow international standards ensuring global project compatibility:
- ASME/ANSI B16.9: Primary manufacturing standard for wrought buttwelding fittings
- DIN 2617 / EN 10253: European compliance standards
- ISO 9001: Certified quality management system
- ASME B16.25: End preparation and beveling standards
Chemical Composition & Mechanical Properties
| Material Grade | Standard | Key Properties |
|---|---|---|
| Carbon Steel WPB | ASTM A234 | General purpose applications, excellent weldability |
| Stainless 304/304L | ASTM A403 | Corrosion resistance, food grade applications |
| Stainless 316/316L | ASTM A403 | Enhanced corrosion resistance, marine environments |
| Alloy Steel WP11 | ASTM A234 | High-temperature service, power generation |
| Alloy Steel WP22 | ASTM A234 | Elevated temperature applications |
| Low-Temp WPL6 | ASTM A420 | Cryogenic service applications |
Manufacturing Process
Our advanced manufacturing ensures consistent quality:
Material Selection: Premium grade raw materials meeting international specifications
Hot Forming: Precision mandrel forming maintains wall thickness uniformity
Heat Treatment: Controlled stress relief processes optimize mechanical properties
Machining: CNC end preparation ensures accurate bevel angles
Dimensional Inspection: Center-to-center verification on precision surface plates
Surface Treatment: Protective coatings per application requirements
Surface Finish & Coating Options
Carbon Steel Options:
- Black painting for standard applications
- Anti-rust oil protection for storage
- Hot-dip galvanizing for corrosive environments
Stainless Steel Finishes:
- Pickling and passivation for optimal corrosion resistance
- Electropolishing for pharmaceutical applications
- Mill finish for general industrial use
Applications
Heat Exchanger Construction: U-tube bundle assemblies requiring precise spacing
Boiler Systems: Steam and water circulation loops
Cooling Systems: Industrial refrigeration coil applications
Process Piping: Chemical and petrochemical flow reversal requirements
Power Generation: High-pressure steam line configurations
HVAC Systems: Heating and cooling distribution networks
Packaging & Delivery
Protection Standards: Wooden cases or pallets with moisture protection
Marking: Heat number traceability and dimensional identification
Documentation: Mill test certificates and compliance reports
Shipping Options: Sea freight containers optimized for fitting transportation
Lead Time: Standard inventory items ship within 7-15 days
Customization Service
We provide tailored solutions for your specific requirements:
- Custom center-to-center dimensions
- Special material grades and specifications
- Non-standard wall thickness combinations
- Unique surface treatments and coatings
- Engineering support for complex applications
- Small batch and prototype manufacturing
Quality Control
Our comprehensive quality system ensures consistent performance:
Incoming Inspection: Raw material verification and chemical analysis
Process Control: In-line dimensional monitoring throughout production
Final Testing: Hydrostatic pressure testing when specified
Documentation: Complete traceability with mill test certificates
Third-Party Verification: Independent inspection services available
Whether you need standard butt weld 180 degree elbow fittings or custom solutions, our experienced team delivers reliable products meeting your exact specifications.
FAQ
Q1: What determines the Center-to-End dimension for 180° elbows?
For Long Radius versions, the Center-to-Center distance equals 3 times nominal pipe size, making Center-to-End 1.5 times NPS. Short Radius versions use 2 times NPS for Center-to-Center distance.
Q2: Can these fittings handle high-vibration environments?
Yes, butt-welded construction creates permanent unified structures handling vibration and thermal expansion better than threaded or flanged alternatives, making them ideal for refinery and power plant applications.
Q3: How do you ensure parallel end alignment?
Each fitting undergoes surface plate verification checking face alignment and uniform center-to-center distances across the entire fitting face, preventing installation twisting.
Q4: Are different wall thicknesses available?
Absolutely. We manufacture fittings matching all standard pipe schedules from SCH 10s for low-pressure stainless applications to SCH 160 or XXS for high-pressure carbon and alloy steel systems.
Q5: What's the primary application for return bends?
Most commonly used in U-tube heat exchanger bundles, air-cooled heat exchangers, and industrial refrigeration coils where fluids loop through heating or cooling mediums multiple times.
Our final product products deliver the precision and reliability your projects demand through proven manufacturing excellence.
Contact Us
Ready to discuss your butt weld 180 degree elbow requirements? Contact our experienced team at admin@jsfittings.com for technical support and quotations.
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