Haihao Group Delivers Carbon Steel Blind Flanges for an Industrial Project in India
Haihao Group has successfully completed the production and shipment of a batch of Q235B blind flanges for an industrial customer in India. The order includes multiple sizes of FF (Flat Face), RF (Raised Face), and RJ (Ring Joint) blind flanges, covering pressure classes from Class 150 to Class 600. Every flange was manufactured according to customer specifications and underwent dimensional inspection before being coated with black anti-corrosion paint for reliable protection during transportation and storage.
For pipeline isolation and maintenance, Q235B blind flange products remain a practical and cost-effective solution. Their dependable sealing performance and mechanical strength make them widely used in water treatment, power generation, petrochemical facilities, general industrial pipelines, and infrastructure projects. Haihao Group continues to provide customized flange solutions that comply with international standards while meeting the specific requirements of overseas EPC contractors and distributors.
Blind Flanges Manufactured for the Indian Project
The shipment includes the following products:
FF Blind Flanges, Class 150, Material Q235B
- 1″, 2″, 3″, 4″, 6″, 8″, 10″, 12″, 16″, and 20″
RF Blind Flanges (Series A), Class 150
- 28″, 30″, 36″, and 40″
RJ Blind Flanges (Series A), Class 600
- 30″ and 36″
All products were supplied with a black painted surface to improve corrosion resistance during marine transportation and warehouse storage.
Q235B blind flanges including FF, RF and RJ types manufactured by Haihao Group
Reliable Manufacturing for Large-Diameter Flanges
Producing large-diameter blind flanges requires strict control over raw material quality, machining accuracy, and sealing surface dimensions. Throughout this project, Haihao Group maintained comprehensive quality inspections to ensure that every Q235B blind flange met customer requirements for dimensional tolerances, flatness, and sealing face quality.
The combination of Flat Face (FF), Raised Face (RF), and Ring Joint (RJ) sealing types allows these flanges to serve different pipeline pressure ratings and sealing applications. This diverse product mix demonstrates Haihao Group’s capability to manufacture both standard and customized carbon steel flanges for global engineering projects.
Our experienced production team also paid close attention to coating quality, packaging protection, and shipment arrangements, ensuring the products would arrive in excellent condition after international transportation to India.
Why Customers Choose Haihao Group
International customers continue to cooperate with Haihao Group because we provide more than standard products. Every project is supported by:
- Complete manufacturing and inspection procedures
- Stable raw material sourcing
- Custom production according to project drawings
- Fast delivery schedules
- Export packaging suitable for long-distance shipping
- Technical support before and after delivery
Whether customers require small standard flanges or oversized custom components, Haihao Group has the production capacity and quality management system to deliver dependable pipeline products.
Looking for a Trusted Blind Flange Manufacturer?
If your project requires Q235B blind flange products, carbon steel flanges, or customized pipeline components manufactured to international standards, Haihao Group can provide a complete solution. Our engineering and sales teams are ready to support EPC contractors, distributors, and industrial end users with competitive quotations, technical assistance, and reliable delivery worldwide.