Figure-of-eight blind board

We produce flanges, which are efficient connectors between pipelines, equipment or machinery. They can achieve sealing, support or disassembly functions to ensure the safety and stability of the system.

Product advantages     
● Diverse types 
Flat welding flanges, butt welding flanges, blind flanges, threaded flanges, etc. are available to meet different working conditions. 
● Precision sealing 
High-precision processing ensures that the sealing surface (such as raised surface RF, flat surface FF) and the gasket fit perfectly to prevent leakage. 
● Material adaptation 
Carbon steel, stainless steel, alloy steel, etc. are optional to meet harsh environments such as corrosion, high temperature and high pressure.

Typical applications     
● Petrochemical pipeline connection 
● General pipeline connection 
● Modular assembly of ships and heavy machinery 
● Wind power tower connection

Blind flanges for LNG systems are critical sealing components designed to safely isolate pipelines, valves, and pressure vessels in cryogenic environments. These flanges are manufactured from high-grade stainless steel or nickel alloys to withstand extreme temperatures (-196°C/-320°F) and high-pressure conditions typical in liquefied natural gas (LNG) applications. Their robust construction ensures leak-proof performance, preventing hazardous gas leaks in storage tanks, LNG carriers, and regasification plants.

A key feature of blind flanges for LNG systems is their superior metallurgical properties, including excellent toughness and resistance to thermal contraction. They comply with international standards such as ASME B16.5, BS EN 1092, and ISO 15590, ensuring compatibility with global LNG infrastructure. Additionally, these flanges undergo rigorous testing, including cryogenic impact tests and helium leak detection, to guarantee reliability in mission-critical operations.

With precise machining and smooth sealing surfaces, blind flanges for LNG systems provide long-term durability in harsh conditions. Available in various sizes and pressure ratings, they are widely used in LNG terminals, offshore platforms, and processing plants. Their corrosion-resistant coatings and anti-galling treatments further enhance performance, making them an essential component for safe and efficient LNG transportation and storage.