RECENT PRODUCTS
XUAN YUAN is an award winning company with a reputation for consistent innovation at the highest level of production technology.
Company Introduction
Shanghai Xuanyuan Air Conditioning Equipment Co., Ltd. was established in 2007 and is located at No. 93, Tanglu Road, Fengxian District, Shanghai. The products have passed CE, SGS, UL181 and other product certifications.
As a professional manufacturer of HVAC ventilation ducts, Xuanyuan has over 19years of production and R&D experience. Our products include flexible tubes (aluminum-plastic tubes, VMPET tubes, PVC tubes, braided tubes, PU tubes, PP tubes, EVA tubes, TPE tubes, PE tubes, etc.), combination flexible tubes, semi-rigid flexible tubes, insulated flexible tubes, soundproof flexible tubes, high-temperature resistant flexible tubes, wear-resistant hoses, anti-static tubes, stainless steel air caps, fixing devices, ABS air outlets, aluminum foil tapes, cloth-based tapes, insulated tube covers, fiberglass insulation blankets and other accessories.
Xuanyuan covers an area of 6,000 square meters, has 12 production lines, and employs over 50 people. Its annual turnover exceeds 4 million US dollars, with an export ratio of 80% to 85%. Currently, its main markets are North America, Europe, the Middle East, Asia, etc.
Quality is as important as research and development. This is the issue we are most concerned about.
Therefore, over the years, Huanyu has been a long-term partner of Disneyland, Panasonic, Mercedes-Benz, Boss and many others.
Shanghai Qianjing Ducting Co., Ltd. Achieves UL 181 Certification for HVAC Air Ducts
SHANGHAI, China – December 11, 2025 – Shanghai Qianjing Ducting Co., Ltd., a leading UL 181 duct manufacturer in China, has officially been awarded the UL 181 certification by UL Solutions. This milestone confirms that Qianjing’s HVAC air duct systems meet stringent U.S. and international safety, fire resistance, and performance standards.
A Milestone for Product Safety and Quality
The certificate presentation ceremony was held at the company’s Shanghai headquarters, with UL Solutions representatives formally presenting the UL 181 certificate to Qianjing’s management team. The golden certificate, symbolizing global trust, marks the company’s transition from domestic manufacturing excellence to certified international supply capability.
UL 181: What It Means for HVAC Ducting
The UL 181 standard applies to factory-made air ducts, connectors, and related components used in HVAC systems. Certification under UL 181 demonstrates:
Compliance with U.S. safety and fire performance requirements
Proven structural integrity and airtightness
Reliable performance in commercial, industrial, and residential HVAC applications
For customers, specifying UL 181 certified ducting reduces compliance risk, shortens project approval cycles, and ensures compatibility with global building codes.
From R&D to Quality Control: A Rigorous Process
Achieving UL 181 certification required end-to-end alignment across:
Product design and R&D for optimized airflow and durability
Material selection meeting flame spread and smoke development limits
In-house testing aligned with UL’s technical protocols
ISO-based quality management systems ensuring batch-to-batch consistency
This certification is both an endorsement of Qianjing’s technical capability and a fulfillment of its long-standing commitment to deliver safe, high-quality, code-compliant ducting solutions.
A New Starting Point for Global Expansion
“UL 181 certification is not an endpoint, but a higher starting point,” said a company spokesperson. “Guided by our philosophy—‘Humility Casts Crystal, Pipes Connect the Future’—we will continue to innovate, strengthen quality control, and bring the credibility of Made in China ducting to global markets.”
About Shanghai Qianjing Ducting Co., Ltd.
Shanghai Qianjing Ducting Co., Ltd. is a professional HVAC duct manufacturer specializing in UL 181 air ducts, flexible ducts, and ventilation systems for commercial, industrial, and infrastructure projects. With a focus on safety, craftsmanship, and international compliance, Qianjing serves clients across Asia, North America, and beyond.