Quality Benchmark Case of J-VALVES Electric Actuator Ultra-Low Temperature Fully Welded Extended Stem Ball Valves in An LNG Liquefaction Project of A Certain Country

In the global energy industry, LNG (Liquefied Natural Gas) liquefaction projects have nearly harsh requirements for the ultra-low temperature resistance, sealing reliability, and structural strength of valve equipment. As one of the world’s largest LNG exporters, a certain country launched an expansion project for a large-scale LNG liquefaction plant. In this project, J-VALVES Electric-Actuated Ultra-Low Temperature Fully Welded Extended-Stem Ball Valves, with their outstanding quality, became the key control equipment under cryogenic working conditions, building a solid "valve defense line" for the efficient and safe operation of the project.

I. Project Background: Equipment Challenges Under Extreme Working Conditions

This project focused on the control link of the low-temperature section in the LNG liquefaction process. The temperature of liquefied natural gas is as low as -162°C, and the medium is flammable and explosive. Meanwhile, the equipment needed to adapt to the remote control requirements of the plant’s automated control system, posing multiple challenges to the ultra-low temperature sealing performance, structural integrity of the valves, and the accuracy and durability of the electric actuators.

II. Targeted Solutions of J-VALVES Products

To address the project’s pain points, the Electric-Actuated Ultra-Low Temperature Fully Welded Extended-Stem Ball Valves provided by J-VALVES fully matched the working condition requirements in terms of both design and manufacturing process:

• Ultra-low temperature fully welded structure: Adopting low-temperature alloy material (suitable for -196°C cryogenic environments), the fully welded valve body has no leakage points, completely eliminating the risk of low-temperature medium leakage and achieving zero-leakage operation in the "cryogenic barrier" of LNG liquefaction.

• Extended-stem design: Adapted to the installation layout of cryogenic equipment in the project, it ensures reasonable isolation between the valve operating mechanism and the low-temperature medium area. This not only meets the spatial layout requirements but also prevents the actuator from being damaged due to ultra-low temperatures.

• Intelligent electric actuator: Equipped with a high-precision and high-protection-grade electric actuator, it supports remote automated control, featuring fast response speed and high adjustment accuracy. It is perfectly integrated into the plant’s intelligent control system, significantly improving the control efficiency of the LNG liquefaction process.

III. Evidence of Quality Advantages: Dual Verification from Laboratory to On-Site

The high quality of J-VALVES products is not just a theoretical claim, but has undergone dual verification through rigorous testing and long-term on-site operation:

• "Pressure Test Area" Tempering Before Delivery: As shown in the "Pressure Test Area" in the picture, each valve undergoes ultra-low temperature pressure resistance testing and sealing testing before leaving the factory, simulating long-term operation under -165°C working conditions to ensure stable performance.

• "Zero-Fault" Performance On-Site: At the project site of the certain country, this series of valves has operated stably for more than 3 years, withstanding the tests of extreme temperatures and frequent working condition switches. There has been no production interruption caused by valve faults, and the sealing performance of its fully welded structure and the reliability of the electric actuator have been highly recognized by the project party.

IV. Customer Evaluation: Quality is the "Invisible Competitiveness"

The project equipment engineer commented in the quarterly inspection report: "The performance of J-VALVES ultra-low temperature ball valves under -162°C working conditions far exceeds expectations. There are no leakage traces at the fully welded joints, and the control accuracy of the electric actuator makes our automated process run ‘as smoothly as flowing water’. Such high-quality equipment is an invisible guarantee for the long-term stable profitability of LNG projects."

With its professional experience rooted in the concept of "INDUSTRIAL VALVES SOLUTION SINCE 2009", J-VALVES has used the benchmark performance of its "ultra-low temperature fully welded extended-stem ball valves" in the LNG project of the certain country to interpret the core logic that "quality is the lifeline of products". It also provides a "reliable option" for valve selection in global cryogenic energy projects.