Natural gas features high calorific value, low carbon emissions and eco-friendly properties, making it one of the major energy sources for residential and industrial use worldwide. To boost transportation efficiency and cut costs, natural gas is compressed into liquid form during transit. Ultra-low temperature ball valves are essential for the liquefaction, transportation, storage and gasification of natural gas under liquid-phase conditions of -165°C.
Such ultra-low temperature ball valves occupy a crucial position in equipment control across various extreme operating environments. How advanced is China’s ultra-low temperature ball valve technology? Let’s take a closer look.
Excellent Weather Resistance
These ball valves work reliably and maintain tight sealing for gaseous media at ambient temperature, as well as liquid media at -165°C. The pipeline pressure reaches 10 MPa at this temperature, over 30 times that of ordinary domestic water pipelines. Stringent technical requirements once allowed foreign manufacturers to dominate this market for decades.
Material selection is the core of ultra-low temperature ball valve manufacturing. Years ago, Shangzhou Valve collaborated with universities and research institutes to tackle material challenges. The company developed low-temperature resistant materials that withstand thermal expansion and contraction, and optimized low-temperature sealing structures. With round-the-clock research, substantial R&D investment and countless trials, the enterprise mastered cutting-edge technologies and grew into a renowned player in the ultra-low temperature ball valve sector.
Continuous Technological Advancement
Valves manufactured by Shangzhou Valve meet top-tier industrial standards. Innovative exterior materials are adopted: double cryogenically treated metal materials feature a cubic crystal structure, delivering excellent resistance to extreme low temperatures and high pressure. The valves adapt well to aerospace and other harsh scenarios, solving extreme temperature cycling issues and boasting comprehensive application coverage and superior low-temperature performance.
The company has further upgraded large-caliber ultra-low temperature valve technology, greatly enhancing environmental adaptability. Equipped with specially designed compensating and supporting valve seats, the products have passed authoritative tests, breaking the long-term foreign market monopoly. This breakthrough strengthens Shangzhou Valve’s core competitiveness and drives the overall technological upgrading of China’s valve industry.