Shoulong Valve
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No bolted or flanged joints — withstands soil and pipeline stress for long-term, maintenance-free operation.
Low torque operation with extended seat life, ideal for large-diameter, high-pressure pipelines.
Stem reaches ground level, minimizing excavation and ensuring safe operation of underground valves.
Smooth and efficient torque transmission for easy opening and closing. Optional electric or pneumatic actuators available.
Extended pipe ends ensure pipeline alignment, reduce welding stress, and simplify lifting and field installation.
Choose PTFE, RPTFE, PPL, PEEK, TFM, or PCTFE to match specific media, temperature, and pressure requirements.
The fully welded buried trunnion ball valve is designed for underground pipeline applications requiring long-term reliability and zero external leakage. Its fully welded body and trunnion-mounted ball structure ensure stable sealing performance and low operating torque, making it suitable for demanding pipeline systems.
The extended stem enables underground installation while allowing safe and convenient operation from above ground. Equipped with a manual gear operator, the valve provides smooth and controlled opening and closing, even for large-diameter pipelines.
This valve is widely used in oil and gas transmission, natural gas distribution, district heating, and other pipeline systems. Materials, pressure ratings, seat designs, welded end connections, and coating systems can be customized to meet specific project requirements.
