High-pressure tolerance: The maximum working pressure reaches Class 900 (PN150), meeting the requirements of harsh working conditions
Bidirectional sealing: Precisely ground gate plates and valve seats, achieving zero leakage in both directions
Low flow resistance design: Full-diameter structure, smooth medium flow, small pressure drop
Corrosion resistance and wear resistance: Valve body and internal components use special alloy steel, with surface hardening treatment
Multiple driving methods: Supports manual, gearbox, pneumatic or electric operation
Long service life design: Self-lubricating valve seats, reducing wear, with a long maintenance cycle
Installation convenient: Complies with API 6D standards, flange connection, suitable for various pipeline systems
◎ Main material: Carbon steel, stainless steel, alloy steel
◎ Size range: NPS 1～ NPS 42
◎ Pressure level: CLass150～2500
◎ Temperature range: -46～121
◎ Operator: Manual, Pneumatic, Electric, etc..
◎ Application scenarios: The application scope mainly includes oil fields, crude oil/natural gas extraction, and wellhead equipment
There is an oil groove between the valve body and the sealing surface of the pressure-balanced plug valve, and sealing grease can be injected into the valve seat through the oil nozzle at any time to improve the sealing performance. The material of the parts and the size of the flange can be reasonably selected according to the actual working conditions or user requirements to meet various engineering needs.
The structure is simple & compact with: smooth flow passages, high accuracy in flow characteris- tic curves, stable & reliable, economically practical, and easy to maintain. Based on a conventional type, it is designed and developed through modular extension which is capable of producing special structures such as: the C7 series angle type single-seat valve, bellows seal single-seat valve, and insulated jacket type single-seat valve for user selection.
The valve disc of the ultra-low temperature swing check valve adopts a cantilevered swing structure, combined with precisely machined valve seat sealing surfaces, to achieve rapid response and reliable sealing, effectively preventing the reverse flow of the medium. The overall design of the valve complies with international standards such as BS 6364 and ISO 28921, and is suitable for low-temperature conditions in air separation plants, liquefied natural gas storage and transportation, and the chemical industry.