The 24th China International Petroleum and Petrochemical Technology and Equipment Exhibition

Valves are crucial control components in fluid transport systems, playing an indispensable role in our daily lives, industrial production, oil transportation, and more. Although a valve is just a small component, its function is extremely important.It can perform opening and closing functions, cutting off or connecting the flow of fluid media by fully opening or closing, isolating equipment and pipeline systems; it has a regulating function, adjusting pipeline resistance by changing the valve opening, thereby regulating the fluid’s velocity, pressure, and flow rate; it can control the flow direction, such as check valves preventing fluid backflow, and distribution valves distributing and controlling the flow direction of fluid; it also has a safety protection function, when the pressure in the pipeline or equipment exceeds the specified value, safety valves will automatically release pressure to maintain a certain level and ensure safety.

The double offset butterfly valve achieves a “double eccentric” structure by simultaneously offsetting the valve stem axis from both the butterfly plate center and the valve body center. Compared to center-line butterfly valves, it offers greater pressure resistance, stability, and service life; it also supports metal seats and can operate at temperatures up to 500°C, extending its application to high-temperature conditions. The valve has lower flow resistance, making it particularly suitable for large-diameter water, gas, oil, and corrosive media pipelines (DN200 and above) for regulation or shut-off applications.

The Cryogenic Double Block & Bleed Ball Valves is designed for cryogenic conditions ranging from -196℃ to -46℃ and is widely used in storage and transportation systems for media such as liquefied natural gas (LNG), liquid nitrogen, and liquid oxygen. The valve body is made of cryogenically resistant materials (such as 304L and 316L), and the valve stem is lengthened with a drip tray to prevent cryogenic conduction to the packing. The sealing structure features fireproof, anti-static, and stem blowout prevention designs, ensuring flexible operation and zero leakage in cryogenic environments. It is a core safety component for critical equipment such as LNG receiving stations and air separation units.