Shanghai Yushi Technology Development Co., Ltd. (KSTONE) recently completed the successful delivery and commissioning of a Fully Automatic Negative Pressure SF₆ Gas Recovery System for Liling Huaxin Insulator Technology Co., Ltd. (HUAXIN INSULATOR), one of China’s leading manufacturers of high-voltage insulators and GIS bushings.
The project marks another successful application of KSTONE’s SF₆ gas handling technology in the high-voltage power transmission industry and demonstrates the company’s commitment to helping customers improve gas management efficiency while reducing environmental impact.
HUAXIN INSULATOR is a well-known manufacturer specializing in high-voltage insulators, hollow porcelain insulators, GIS bushings, and power transmission equipment components.
Its products are widely used in power transmission and distribution projects, supporting the development of modern electrical infrastructure and high-voltage substations.
As the industry continues to focus on environmental responsibility and efficient gas management, reliable SF₆ recovery and recycling solutions have become increasingly important in manufacturing and testing operations.
During production, testing, and maintenance activities involving SF₆-insulated equipment, the customer required a reliable and intelligent solution capable of:
- Automatic SF₆ gas recovery
- Deep vacuum extraction
- High recovery efficiency
- Safe gas storage and transportation
- Gas purification and recycling
- Stable long-term operation
- Reduced SF₆ emissions
The goal was to improve operational efficiency while supporting environmental protection initiatives and compliance with industry requirements.
To meet these requirements, KSTONE supplied a Fully Automatic Negative Pressure SF₆ Gas Recovery System designed for efficient gas handling and recycling.
The system integrates multiple functions into a single platform, including:
- Fully automatic operation
- Negative pressure SF₆ recovery technology
- High-vacuum evacuation capability
- Gas purification and filtration
- Oil-free compression system
- High-pressure storage function
- Intelligent PLC control
- Real-time monitoring and protection
The integrated design allows operators to perform gas recovery, purification, storage, and recycling with minimal manual intervention.
Following installation and commissioning, the system has been successfully integrated into daily operations.
The solution helps HUAXIN INSULATOR achieve:
The negative pressure recovery process maximizes gas collection efficiency and minimizes gas loss.
By recycling and reusing recovered SF₆ gas, the system contributes to emission reduction and sustainable operation.
Automated operation and intelligent monitoring reduce manual handling and improve workplace safety.
Gas recovery and recycling reduce the need for purchasing new SF₆ gas and improve resource utilization.
As environmental regulations become increasingly important, utilities, GIS manufacturers, and electrical equipment producers are placing greater emphasis on responsible SF₆ gas management.
KSTONE continues to invest in advanced technologies for:
- SF₆ gas recovery
- SF₆ recycling
- SF₆ purification
- SF₆ gas analysis
- Leak detection
- Environmentally friendly gas solutions
The successful cooperation with HUAXIN INSULATOR further demonstrates KSTONE’s ability to provide reliable and efficient gas handling solutions for demanding industrial applications.
KSTONE, a brand of Shanghai Yushi Technology Development Co., Ltd., specializes in the development and manufacturing of:
- SF₆ Gas Analyzers
- SF₆ Recovery Systems
- SF₆ Recycling Equipment
- SF₆ Leak Detectors
- Gas Filling and Mixing Systems
- Environmentally Friendly Switchgear Gas Testing Solutions
KSTONE products are widely used by power utilities, GIS manufacturers, testing laboratories, and high-voltage equipment
An SF₆ gas recovery system is used to recover, recycle, store, and reuse SF₆ gas from electrical equipment, reducing emissions and improving environmental performance.
Negative pressure recovery helps maximize gas extraction efficiency and minimizes residual SF₆ remaining inside electrical equipment.
SF₆ recovery systems are widely used by GIS manufacturers, power utilities, high-voltage equipment factories, electrical testing laboratories, and substation maintenance companies.
SF₆ recycling reduces gas consumption, lowers operating costs, minimizes environmental impact, and supports sustainable asset management.