The Triple Offset Valve (TOV) represents the pinnacle of butterfly valve evolution. Unlike concentric or double-offset designs, the TOV utilizes a unique geometric sealing principle that eliminates friction between the seat and the seal ring during travel, ensuring bi-directional zero-leakage performance in the most demanding high-pressure and high-temperature environments.
Modern EPCs and industrial procurement teams prioritize reliability and total cost of ownership (TCO). Our Triple Offset Butterfly Valves are engineered to meet ASTM, ASME, EN, and JIS standards, providing a drop-in solution for global infrastructure projects ranging from oil & gas refineries to cryogenic LNG terminals.
In an era of stringent environmental regulations, our valves offer SIL-3 capability and fugitive emission certification. We provide comprehensive localized support and compliance assurance, ensuring that every valve meets the safety-critical requirements of the international energy sector.
Established in 2003, Shaanxi Kerlimar Engineers Co., Ltd. has spent over two decades cementing its reputation as a premier international trade and engineering powerhouse. Specializing in high-performance piping systems—including carbon steel, alloy steel, and stainless steel variants—we bridge the gap between rigorous manufacturing standards (ASTM, ASME, EN, JIS) and practical industrial application.
The shaft is located behind the seat, allowing for complete 360-degree sealing contact. This provides a continuous sealing surface and allows for high-pressure capabilities.
The shaft is offset from the pipe's centerline, enabling the disc to swing open like a door, reducing seat wear and extending the valve's lifecycle.
The seat cone axis is offset from the valve centerline, creating a "camming" effect. This ensures the seal ring only contacts the seat at the point of final closure, eliminating friction during operation.
Under the visionary leadership of Mr. Ming SUN, Shaanxi Kerlimar Engineers has transcended traditional manufacturing. Since 2019, we have pivoted significantly toward clean energy research, focusing on vertical axis wind power technology. This innovation aims to solve critical bottlenecks in renewable energy, utilizing maglev rails and floating structures.
Our participation in the Dubai COP28 Conference and the China-Finland High Technology Match Conference underscores our role in the global fight against climate change.
Our Triple Offset Butterfly Valves with Duplex Stainless Steel bodies provide the ultimate corrosion resistance for high-salinity seawater desalination plants.
Built for the harsh environments of offshore platforms, our valves offer fire-safe certification and high-pressure ratings for crude oil extraction.
Designed for temperatures down to -196°C, ensuring safe and efficient storage and transport of Liquid Natural Gas globally.
Triple Offset Valves are significantly lighter, smaller, and easier to automate than gate valves. They also offer true bi-directional bubble-tight shut-off, which gate valves often struggle with over time due to seat wear.
Unlike position-seated valves that rely on the actuator's travel limit, TOVs are torque-seated. The closing torque forces the seal ring into the seat, creating a uniform sealing pressure that compensates for thermal expansion and wear.
For temperatures exceeding 450°C, we typically utilize ASTM A216 WCB bodies with Stellite™ faced seats and multi-layer stainless steel/graphite seal rings.
Yes. As a National High-tech Enterprise with numerous international patents and 21 years of export experience, our products comply with ASME B16.34, API 609, and CE/PED requirements.
Leading the way in 10KW-500KW energy units and advanced industrial productivity.
Kerlimar
