China Rubber Lined Concentric Butterfly Valve Manufacturer, Supplier, Factory

LYV® gate valves are designed to be high performance. We invest heavily in refining our manufacturing processes and implementing stringent quality control measures to ensure that our high pressure gate valves stand out for their superior quality and durability in comparison to their counterparts.

LYV®️ Gas-over-oil full welded ball valve through a self-actuating actuator. By the pressure of the medium of the pipeline itself to actuate valve open and close. The product directly use natural gas inside of the pipeline as the air supply of pneumatic. The whole system design for high pressure. Through air supply filtering process without decompression. The gas directly into the gas tank and high-pressure control valve components. Under the action of the control signal, the high-pressure controlled gas enters the corresponding gas/liquid circuit. And by the principle of isobaric transmission of the liquid medium to realize the gas/liquid synchronous transmission, acting on the hydraulic cylinder of the valve drive device and controlling the valve.

LYV®️ adopt double offset design in the resilient seated butterfly valve. The double offset design can reduce the compression between seal ring and seats during valve operating. Improve the service life of the valve. LYV®️ double offset resilient seated butterfly valve has a nickel alloy welded overlaid on body seat. This design makes the valve have low friction coefficient when valve open and close.

LYV® High performance butterfly valve adopt double offset disc with floating seat design, can withstand pressure comes from both sides of pipeline and keeping its excellent sealing performance. LYV®️ High performance butterfly valves are available for wafer, flanged and lug style end connections.

LYV®️ Electric actuated trunnion mounted ball valve as a high-performance product that meets international standards like API-6A, API-6D, ASME-B16.34, ISO-17292 and more. LYV®️ Electric actuated trunnion mounted ball valve has obtained API-6FA fire certification, which prove product has capacity to use for various fire safe requested applications. LYV®️ as a manufacturer to produce Electric actuated trunnion mounted ball valve can manufacturing NPS 2” to NPS 48” Electric actuated trunnion mounted ball valve, maximum pressure rating can reach to 2500LB. Furthermore, LYV®️ has conditions and experience to produce low-temperature Electric actuated trunnion mounted ball valve. Contact our sales for more information.

LYV®️ Triple offset butterfly valve are manufactured with high standard. We control the quality of the casting to make valves far superior to similar products in the industry. LYV®️ Triple offset butterfly valve use high quality metal + graphite multi-layer sealing ring, which enables the valve to be used under high pressure and high temperature conditions.