China Pneumatic Ball Valve Manufacturer, Supplier, Factory

LYV® swing check valves are designed to be robust, reliable, high performing and aesthetically pleasing. We are committed to improving our manufacturing processes and using stringent quality control measures to ensure that our check valves surpass their peers in quality.

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®️ Gas-over-oil actuated BW ends ball valve can meet standards such as API, DIN. Produce size range from NPS2 inch up to 24 inch, DN50 to DN600.

LYV®️ Pneumatic forged ball valve as a high-performance product that meets international standards like API-6A, API-6D, ASME-B16.34, ISO-17292 and more. LYV®️ Pneumatic forged 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 Pneumatic forged ball valve can manufacturing NPS 2” to NPS 48” Pneumatic forged ball valve, maximum pressure rating can reach to 2500LB. Furthermore, LYV®️ has conditions and experience to produce low-temperature Pneumatic forged ball valve. Contact our sales for more information.

As a type of Ball valve, the DBB double block and bleed ball valve uses the Trunnion mounted as the sealing structure. The valve actuated by Worm gear, and uses carbon steel as body material.

LYV®️ Electric actuated cast steel 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 cast steel 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 cast steel ball valve can manufacturing NPS 2” to NPS 48” Electric actuated cast steel ball valve, maximum pressure rating can reach to 2500LB. Furthermore, LYV®️ has conditions and experience to produce low-temperature Electric actuated cast steel ball valve. Contact our sales for more information.