Haihao Group Delivers Heavy-Wall A234 WPB 90 Degree Short Radius Elbow for Portugal Project
In large industrial piping systems, engineers often face a practical challenge: achieving efficient flow direction changes in areas where installation space is restricted. For projects involving high-pressure or heavy-wall pipelines, the choice of elbow is not only about geometry but also about strength, weld quality, and long-term reliability.
Recently, Haihao Group completed the production and shipment of a 90 degree short radius elbow for a customer in Portugal. Manufactured from ASTM A234 WPB carbon steel, the fitting was produced with a substantial wall thickness of 28 mm and underwent 100% radiographic examination before delivery.
Built for Demanding Service Conditions
The supplied fitting was a:
| Product | Size | Wall Thickness | Material | Inspection |
| 90° Short Radius Elbow | 32″ | 28 mm | ASTM A234 WPB | 100% RT |
Unlike standard wall fittings used in general service, this A234 WPB short radius elbow was designed for a heavy-wall piping system where dimensional accuracy and weld integrity were critical.
The customer also specified:
- Back arc dimension of 87.5 mm
- End tolerance controlled within specification limits
- Maximum positive tolerance not exceeding 12.5%
- Full radiographic testing of weld areas
- Strict manufacturing and inspection procedures
These requirements ensured the fitting would integrate smoothly into the existing pipeline while maintaining mechanical performance under operating loads.
ASTM A234 WPB 90 degree short radius elbows with 28mm wall thickness
Why Short Radius Elbows Are Chosen for Industrial Pipelines
Compared with long radius elbows, a 90 degree short radius elbow provides a tighter turning radius, making it especially valuable where equipment spacing is limited.
Typical applications include:
- Refinery process piping
- Offshore platforms
- Power generation facilities
- Petrochemical plants
- Compressor and pump stations
- Pipeline modification projects
For heavy-wall systems, the combination of ASTM A234 WPB elbow material and rigorous inspection procedures helps operators maintain safety and reliability throughout the service life of the pipeline.
Quality Verification Before Shipment
For this Portugal project, quality control was a major focus.
The elbow underwent:
✔ Raw material verification
✔ Dimensional inspection
✔ Bevel examination
✔ Surface quality checks
✔ 100% radiographic testing
✔ Final visual inspection
By performing complete radiographic examination, Haihao Group ensured that potential internal discontinuities could be detected before shipment, reducing installation risks and supporting project quality objectives.
Supporting Global Industrial Projects
Portugal continues to invest in energy, industrial processing, and infrastructure modernization. Such projects require piping components capable of meeting demanding operating conditions while complying with international standards.
As a manufacturer and supplier of carbon steel pipe fittings, Haihao Group provides:
- Elbows
- Tees
- Reducers
- Flanges
- Pipe bends
- Forged fittings
- Custom-engineered piping components
From standard dimensions to project-specific requirements, the company supports customers across Europe, Southeast Asia, the Middle East, and other international markets.
If your project requires ASTM A234 WPB elbows, heavy-wall fittings, custom bevel preparations, or special inspection requirements such as radiographic testing, Haihao Group can provide technical support and manufacturing solutions tailored to your specifications.
Contact our team today for drawings review, pricing, and delivery schedules.