Colourful Yunnan No.1 City required a gas distribution system that could support a large mixed-use development with safe operation, stable performance and long-term reliability. To meet these needs, the project selected Nonleak stainless steel pipes and threaded press-fit fittings for its gas piping network.
Located in Chenggong New District, Kunming, Yunnan Province, the project stands as a major urban landmark. It includes high-rise residential towers, hotels, shopping malls and offices. Because the system needed to serve many users across different building areas, the developers required durable materials, reliable connections and consistent installation quality.
Gas Distribution System Overview
The project involved a comprehensive stainless steel gas distribution system for Colourful Yunnan No.1 City. Nonleak supplied 304 stainless steel pipes, threaded press-fit fittings and related connection components for the installation.
Project details:
Location: Chenggong New District, Kunming, Yunnan Province
Project Year: 2014
Application: Gas distribution system for a mixed-use complex
Pipe Material: 304 stainless steel
Connection Method: Threaded press-fit adhesive connection system
This gas distribution system needed to support long-term operation in a high-use residential and commercial environment.
Project Scale and Technical Specifications
The installation scale shows the trust placed in Nonleak’s stainless steel piping solution.
Key project data:
- 100,258 meters of 304 stainless steel piping
- 71,493 individual threaded press-fit fittings precisely installed
- Consistent use of Threaded Press-Fit Adhesive connection system throughout the entire network
- 304-grade stainless steel for optimal corrosion resistance and material integrity
- Designed for safe operation and long-term service
For a project of this size, consistent product quality and installation control were essential. Therefore, the system needed pipe materials and fittings that could support repeatable installation and stable connection performance.
Why Threaded Press-Fit Technology Was Selected
The project selected Nonleak’s threaded press-fit adhesive connection system because it matched the needs of a large gas distribution system.
First, the connection method helped improve installation efficiency. With more than 71,000 connections required, repeatable installation steps helped the construction team maintain progress and quality control.
Second, the system supported long-term sealing performance. The threaded press-fit adhesive connection forms a stable bond after installation and helps reduce dependence on rubber O-rings.
Third, the system matched the safety needs of gas piping work. Combined with 304 stainless steel pipes, the connection method helped create a clean, organized and durable gas piping network for the whole development.
Installation Challenges and Project Solutions
A large gas distribution system often brings technical and logistical challenges. Colourful Yunnan No.1 City required extensive pipe routing, many connection points and strict installation consistency across different building zones.
The compact design of threaded press-fit fittings helped installers work in complex building layouts. In addition, the standardized connection process helped maintain consistent quality across thousands of joints.
The project also required long-term reliability. By using 304 stainless steel pipes and durable connection components, the system helped reduce the risk of corrosion, leakage and frequent maintenance.
Long-Term Performance and Project Value
Completed in 2014, the gas piping system at Colourful Yunnan No.1 City has supported safe and continuous operation for nearly a decade. This long service record shows the value of selecting suitable materials and connection technology during the construction stage.
The project also demonstrates how stainless steel gas piping can support large mixed-use developments. For residential towers, hotels, shopping malls and offices, a reliable gas piping network helps support daily operation, user safety and facility management.
Project Quick Facts:
- ✅ 100,258 meters of 304 stainless steel pipe deployed
- ✅ 71,493 permanent threaded press-fit connections
- ✅ Fully compliant with gas safety standard DBJ51/T 023-2014
- ✅ 10+ years of flawless, safe operational history
- ✅ Applied in a large mixed-use urban complex
Interested in specifying a safer, more reliable gas piping system?[Explore Our Threaded Press-Fit System for Gas][Contact Our Project Engineering Team]