ASTM A350 LF2 Blind Flanges Delivered to Russia | Haihao Group
Haihao Group has successfully completed the shipment of high-pressure blind flanges to a customer in Russia. The products were manufactured in strict accordance with ASME B16.5 and produced from ASTM A350 Grade LF2 Class 1, ensuring reliable performance in low-temperature and high-pressure service conditions.
Blind Flange Specifications for the Russian Project
The shipment included multiple raised face (RF) blind flanges, covering different pressure classes and sizes, with some items requiring special non-central threaded holes according to customer drawings.
High pressure RF blind flange with NPT threaded hole for pipeline project
Delivered Products:
- RF Blind Flange
- Pressure Class: CL1500
- Size: DN25
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.5
- RF Blind Flange
- Pressure Class: CL900
- Size: DN500
- Special Requirement: 1/2 inch NPT threaded hole at non-central position
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.5
- RF Blind Flange
- Pressure Class: CL900
- Size: DN600
- Special Requirement: 1/2 inch NPT threaded hole at non-central position
- Material: ASTM A350 LF2 Class 1
- Standard: ASME B16.5
These custom blind flanges for Russia were manufactured fully in accordance with approved technical drawings.
Material Advantages: ASTM A350 LF2 Class 1
ASTM A350 LF2 Class 1 is a carbon steel grade widely used for flanges operating in low-temperature and high-pressure environments. Its advantages include:
- Excellent low-temperature impact toughness
- Stable mechanical properties under pressure
- High reliability for oil, gas, and pipeline systems
As a result, ASME B16.5 LF2 blind flanges are commonly selected for critical isolation points in piping systems.
Precision Manufacturing and Quality Control
All blind flanges were produced using forged steel billets and underwent strict quality control, including:
- Dimensional inspection of flange OD, thickness, and bolt holes
- Verification of pressure class and facing type (RF)
- Inspection of non-central 1/2″ NPT threaded holes
- Material traceability and certification review
Haihao Group ensures every ASTM A350 LF2 blind flange supplier to Russia meets both international standards and project-specific requirements.
Reliable Blind Flange Supplier for the Russian Market
With years of export experience, Haihao Group is a trusted ASME B16.5 blind flange manufacturer for Russia, capable of supplying both standard and customized flange solutions. From high-pressure classes to special machining details, our team supports global customers with consistent quality and dependable delivery.