For industries where purity is paramount and failure is not an option, the integrity of every single component is crucial. In sectors like nuclear power, aerospace, and advanced marine engineering, even microscopic contamination can have catastrophic consequences. This is why the demand for pristine, dust-free valve inspection and testing is growing exponentially. Answering this call is Zhejiang YOUJI Machinery Technology Co., Ltd. (YOUJI), which is pioneering a new standard in hygienic, contamination-free valve testing solutions.
Building on its core expertise in high-pressure testing for the nuclear sector, YOUJI is leveraging its advanced intelligent technology and innovative materials to solve one of the industry’s biggest challenges: ensuring valve integrity without introducing contaminants. This breakthrough is earning the trust of top-tier clients and positioning YOUJI as the leader in a highly specialized and critical market.
Proven Expertise in the World’s Most Demanding Environments
YOUJI’s reputation has been forged in the crucible of the nuclear power industry. We have been a key partner in ensuring the safety and reliability of valves for major projects, including Shandong Yangshan Nuclear Power, Zhejiang Sanmen Nuclear Power, Zhejiang Qinshan Nuclear Power, and Fujian Fuqing Nuclear Power. Our success in providing secondary inspection services after valve installation highlights our capability to meet the most stringent operational standards.
This expertise has naturally evolved into providing specialized cleanroom testing solutions. We are proud to have secured multiple high-profile cleanroom project orders, including:
- Naifulong Valve Group: A nuclear-grade clean testing project.
- Lianggu Valve Group: A comprehensive cleanroom valve inspection project.
- Xi’an Guanghe Valve: A specialized test bench for nuclear-grade, floor-penetrating valves.
Advanced Technology for Uncompromised Purity
Our sanitary, dust-free testing solutions are engineered to handle a wide variety of nuclear-grade valves—including gate, ball, globe, butterfly, and floor-penetrating valves—with a suite of technical advantages designed for zero contamination:
- ✅ 100% Stainless Steel Liquid Contact Structure: All components in the fluid path are made from high-grade stainless steel to ensure maximum cleanliness and prevent material leaching.
- ✅ Independent, Single-Use Circulation System: A dedicated liquid discharge system guarantees that testing fluids are used only once, completely eliminating the risk of cross-contamination between tests.
- ✅ Extreme Range Capability: Our systems accommodate a vast range of valve sizes (DN15-DN600) and pressures (1.6-48MPa), meeting the rigorous and diverse standards of the nuclear industry.
Trusted by Global Industry Leaders
YOUJI’s sphere of influence is expanding rapidly from traditional petrochemical applications to high-value markets like new energy, military, and marine vessel equipment. Our breakthroughs in ultra-high-pressure testing, intelligent traceability, and isolated monitoring systems have won the confidence of an elite international and domestic clientele. We are a certified and trusted partner to:
- Domestic Energy Giants: CNPC, Sinopec, CNOOC, and CNEC.
- International Supermajors: Shell, ExxonMobil, and Petrobras.
The continuous flow of new orders is a testament to the growing market recognition of our superior technology and reliability.
A Foundation of Certified Innovation
Our market leadership is driven by a dedicated R&D team of senior and mid-level engineers. This commitment to innovation has earned YOUJI a place on the prestigious Zhejiang Province “First Set of Major Technical Equipment” list for our intelligent hydraulic integrated sealing press. Our technical achievements are substantial:
- Intellectual Property: 3 invention patents, 11 utility model patents, and 2 software copyrights.
- Industry Standards: Participation in the formulation of 1 industry standard, 1 group standard, and 3 enterprise standards.
- Official Certifications: Full certification from the National Valve Testing Center and provincial-level “New Product & New Technology” appraisal for 5 products.
Furthermore, YOUJI is a Zhejiang Province “Specialized, Refined, and New” (专精特新) Enterprise, a Provincial Sci-Tech Innovation Enterprise, and a qualified supplier to industry leaders like CNOOC and Shandong Nuclear Power Equipment Co., Ltd.
Your End-to-End Partner for Zero-Leak Solutions
At YOUJI, we provide a seamless, integrated service experience. Our dedicated business, technical, and after-sales teams work in concert to deliver “Point-to-Point Star-Quality Service,” ensuring every project is managed efficiently from delivery to long-term operation. We are committed to helping our clients conquer the challenge of achieving high-pressure, zero-leakage testing.
As we look to the future, YOUJI will continue to deepen its expertise in high-end valve inspection, driving the global nuclear and advanced industrial sectors forward with reliable, innovative solutions that embody the best of “Intelligently Made in China.
