A check valve is an important type of valve, and its function is to prevent the backflow of fluid in the pipeline. In piping systems, check valves are commonly used to protect pumps, valves, and other equipment from damage caused by reverse pressure or backflow. This article will introduce the functions, types, and application scenarios of check […]
LIU Zhi1, WANG Shu-rong1, YE Zhi-qiang1, CAI Yi1*, XU Jia-cai2, HUANG Kai2, FAN Zhi-he3 (1.TEJI Valve Group Co., Ltd., Wenzhou 325103, Zhejiang, China;2.China National Petroleum Corporation (CNPC) Jiangyou gas production area, northwest river, Jiangyou 621700, Sichuan, China;3. Beijing Valve General Factory Co. , Ltd.) Abstract：This article introduces a new type of cryogenic online disassembly and maintenance ball valve […]
Pipeline transportation has become the primary mode of energy transport in modern times, and the resulting development of pipeline valves has been rapid, greatly promoting the progress of pipeline transportation. How exactly are pipeline valves defined, and what are the differences in their structure, characteristics, and performance? Today, let’s take a closer look at the […]
Liu Zhi (TEJI VALVE GROUP CO.,LTD. , Wenzhou 32500) Abstract: This paper introduces an ultra-low temperature valve test device. The test device has the dual functions of low-temperature test liquid medium recovery and helium gas pressurization recovery for leak detection, so that the test liquid medium and gas medium can be recycled, energy saving and […]
Recently, TEJI Valves Group obtained two invention patent authorizations: “Online Maintenance Cryogenic High-Performance Ball Valve (Authorization Announcement No.: CN 113236810 B)” and “Compact Online Maintenance Cryogenic Butterfly Valve (Authorization Announcement No.: CN 113154056 B),” marking another significant breakthrough in our extreme operating condition valve technology. The patent “Online Maintenance Cryogenic High-Performance Ball Valve” is a […]
A plug valve is a shut-off component—it opens and closes by rotating the valve disc 90 degrees around the valve body’s centerline, used to cut off, distribute, and change the flow direction of media in pipelines. The working principle of a plug valve is to regulate and cut off fluid flow by rotating the valve disc to […]
