Imported low-temperature butterfly valve

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With the rapid advancement of industrial technology, imported low-temperature butterfly valves have imposed stricter requirements on the valve industry. Especially for those used with low-temperature media, in addition to meeting the performance standards of ordinary valves, it is crucial that they ensure reliable sealing at low temperatures, exhibit flexibility in operation, and satisfy other specific requirements associated with low-temperature valves. It is well known that ordinary low-temperature butterfly valves have poor sealing performance in low-temperature conditions, and other issues such as improper design lead to internal and external leakage of the medium, severely affecting the safety and proper operation of such low-temperature equipment; they therefore fail to meet the requirements of such equipment. The unique three-eccentric metal seat design of the WASTON-T32 series, introduced by American Industrial Valve Group, ensures that Watson valves deliver excellent performance in a wide range of applications and industrial environments, making them a reliable choice. Waston valves are designed and manufactured in compliance with ASME B16.34 and API STD609 standards, and they maintain excellent sealing performance under pressures ranging from vacuum to 1500 PSI (103 Bar), and temperatures ranging from -425°F (254°C) to +1500°F (816°C). The WASTON-T32 series features a unique operating principle based on a triple-eccentric metal valve seat; the operating principle of Watson valves is governed by motion geometry. From a certain perspective, both the base of the valve body and the seal of the valve disc are surfaces of a frustum. The valve stem is fixed on one side of the center of the valve seat, slightly above the plane of the valve seat. At the same time, the rotation center is higher than the center of the frustum generated by the valve seat surface. When the valve is closed, the sealing surface and the seat are in full contact. Any external force intended to close the valve disc (by rotating it into the valve seat) will increase the sealing force, closing the valve tightly in both directions. To open the valve, turn the valve disc away from the base, thereby moving the seal completely off the base. This helps to eliminate wear and prevent the surface of the base from sliding, thus avoiding damage. What sets Waston apart is its truly wear-free base surface, long duration of use, and tight sealing. Since its entry into the Chinese market, it has been widely used in air separation applications in systems such as molecular sieve purification, fractionation towers, and pressure swing adsorption. It has earned a good reputation thanks to its excellent quality, favorable prices, and prompt service. Waston ensures tight sealing; tests on the Prussian blue valve seats demonstrate Waston’s superior leak prevention and sealing properties. After coloring the valve disc, only the valve seat line is visible; the entire structure has no gaps and is tightly fitted together. After thousands of rotations, the Worthington valve remained free of seat clogging and kept the bubbles tightly contained. Its friction-free and damage-resistant design ensures that the Worston valves maintain a tight seal even after 50,000 rotations. American Industrial Valve Group China Representative Office: Contact person: Zhang Zheng; Phone: 022-58581891-201; Fax: 022-58581895; QQ: 1127772662; E-MAIL: zzc52486@163.com; Company website: www.aivgvalve.com.cn; Company address: 2-601, Henghua Building, Dagu South Road, Tianjin