Haihao Group Delivers High-Performance WN Flanges and Blind Flanges for Industrial Pipeline Systems
Haihao Group has successfully completed the production and delivery of a batch of weld neck flanges and blind flanges for an international pipeline project. These flange products were manufactured in strict compliance with global standards and tailored to meet diverse operational requirements.
Order Overview
This shipment includes a combination of weld neck flanges (WN flanges RF) and blind flanges (BL flanges RF), covering multiple sizes and material grades to suit different pipeline connections and sealing needs.
ASME B16.5 A694 F65 weld neck flange RF ready for shipment
Product Specifications:
- Product Type: Weld Neck Flange (RF), Blind Flange (RF)
- Sizes: DN25, DN50, DN450, DN600
- Wall Thickness: SCH40 / SCH80
- Pressure Rating: Class 300 (300#)
- Materials: ASTM A694 F52, ASTM A694 F65, Q235
- Standard: ASME B16.5
The order includes repeated quantities of key sizes such as DN450 and DN50, ensuring compatibility with the customer’s pipeline system.
Advantages of Weld Neck Flanges
The weld neck flange is widely used in high-pressure and high-temperature applications due to its superior structural integrity. Its tapered hub design allows for smooth stress transition between the flange and pipe.
Key benefits include:
- Excellent strength and durability
- Reduced stress concentration at the weld joint
- Ideal for critical pipeline systems
With these advantages, weld neck flanges are a preferred choice for industries such as oil & gas, petrochemical, and power generation.
Haihao Group blind flange RF ASME B16.5 A694 F65
Function of Blind Flanges
The blind flange is used to seal the end of a piping system or pressure vessel opening. It plays a critical role in maintenance and system testing.
Key features:
- Reliable sealing performance
- Easy installation and removal
- Suitable for system isolation and pressure testing
The combination of weld neck flanges and blind flanges in this shipment ensures both connection strength and system safety.
Material Performance: A694 F52 & F65
The flanges are produced using high-strength carbon steel grades, including ASTM A694 F52 and F65, which are commonly used in high-pressure transmission systems.
Material advantages:
- High yield strength and toughness
- Suitable for demanding service environments
- Enhanced reliability under pressure
Additionally, selected components made from Q235 provide a cost-effective solution for less demanding applications while maintaining good mechanical properties.
Strict Quality Control and Compliance
Haihao Group ensures that every weld neck flange meets strict quality standards through:
- Precision forging and machining processes
- Dimensional inspection according to ASME B16.5
- Non-destructive testing (NDT) for quality assurance
- Surface inspection and marking verification
Each weld neck flange and blind flange is carefully checked before shipment to ensure full compliance with project specifications.
Application Fields
These weld neck flanges and blind flanges are widely used in:
- Oil and gas pipeline systems
- Petrochemical processing plants
- Power generation facilities
- Industrial piping networks
Their versatility and reliability make them essential components in modern pipeline engineering.
Your Trusted Flange Manufacturer
With years of manufacturing experience, Haihao Group is committed to delivering high-quality weld neck flanges and customized piping solutions to global customers. Our focus on quality, precision, and customer satisfaction makes us a reliable partner for your pipeline projects.
If you are sourcing weld neck flanges, feel free to contact Haihao Group for competitive pricing and professional technical support.