Compact Blind Flanges with IX Seal Ring Shipped to Singapore

Haihao Group has successfully completed the delivery of compact blind flanges with IX seal ring to a valued customer in Singapore. This shipment supports offshore and marine-related pipeline systems where high pressure, reliable sealing, and material traceability are critical.

The supplied flanges are manufactured from ASTM A694 Grade F65, complying with BS EN ISO 27509 and NACE MR0175 / ISO 15156, making them suitable for sour service and harsh offshore environments.

Product Overview

Compact Blind Flange Specifications

• Product Type: Compact Blind Flange with IX Seal Ring

• Sizes & Ratings:

  • 6″ Class 2500

  • 8″ Class 2500

• Material: ASTM A694 Grade F65

• Standard: BS EN ISO 27509

• Sour Service Compliance: NACE MR0175 / ISO 15156

The compact flange design allows for reduced weight and space compared to conventional ASME flanges, while maintaining excellent sealing performance under high pressure.

Material and Performance Advantages

ASTM A694 F65 is a high-strength carbon steel grade widely used in offshore and subsea applications. For this order, all flanges were produced with controlled forging and heat treatment to ensure stable mechanical properties.

Key technical features include:

• High yield and tensile strength for Class 2500 pressure rating
• Proven performance in oil & gas and marine environments
• Compatibility with IX seal ring systems for metal-to-metal sealing
• Suitable for sour service in accordance with NACE requirements

Inspection, Testing, and Certification

To meet the customer’s quality and traceability requirements, Haihao Group supplied a complete documentation package, including:

• EN 10204 3.1 mill test certificate approved by a recognized marine classification society
• Hardness test report
• Heat treatment report
• Ultrasonic testing (UT) report

These inspection records ensure full compliance with project specifications and international standards.

Typical Applications

The ASTM A694 F65 compact blind flanges delivered to Singapore are commonly used in:

• Offshore oil and gas platforms
• Subsea pipeline systems
• High-pressure isolation points
• Marine and FPSO piping systems

Their compact structure and high-pressure capability help reduce installation time and overall system weight.

Haihao Group – Reliable Supplier of Compact Flanges

Haihao Group specializes in the manufacturing and export of compact flanges, blind flanges, high-pressure forged flanges, and NACE-compliant piping components. With extensive experience serving customers in Southeast Asia, including Singapore, Haihao Group provides products that meet demanding offshore and energy industry requirements.