Zhejiang Xuan'anju: A Leader in Temperature Control Valves?
--- Company Overview and History ---
• Founding and Early Years:
Founded in 2002 as Yuhuan Yikang Copper Industry, Zhejiang Xuan'anju began its journey in the HVAC accessory manufacturing sector with modest annual output value under 35 million yuan. Located in Bingang Industrial City, Shamen Town, Yuhuan City, the company was strategically positioned just 910 meters from a highway entrance, ensuring efficient logistics and supply chain connectivity. Initially focused on processing HVAC accessories, the company laid the groundwork for future innovation through consistent operational improvements and customer feedback integration. By 2016, recognizing market demand for more comprehensive solutions, the company rebranded to Yuhuan Yikang HVAC, shifting toward finished HVAC products while maintaining its core accessory production. This strategic pivot marked a turning point—annual output value surged from 38 million yuan in 2016 to 73 million yuan by 2020, reflecting an impressive average annual growth rate of 16.14%. The transformation culminated in October 2021 when the company officially became Zhejiang Xuan'anju HVAC Technology Co., Ltd., signaling a new era of technological advancement and global expansion. Since then, the company’s output value has continued to climb—reaching 91.28 million yuan in 2021 and soaring to 120.05 million yuan in 2022, with a year-on-year growth of 23.96%. The 2023 target of 130 million yuan underscores its strong momentum and commitment to sustained growth. Today, with 175 employees, a 6-mu (approximately 4,000 sqm) campus, and a 9,000 sqm production area, Xuan'anju operates under the U8 ERP system, enabling end-to-end digital management across planning, procurement, quality control, and finance—proving that long-term vision, operational discipline, and adaptability are at the heart of its success.
--- Innovative Product Offerings ---
• Key Products and Applications:
Zhejiang Xuan'anju HVAC Technology Co., Ltd. specializes in precision-engineered temperature control valves that are integral to modern heating and hot water systems. Among its flagship products are thermostatic radiator valves (TRVs), pressure reducing valves, safety valves, and thermostatic mixing valves—each designed to enhance energy efficiency, user comfort, and system safety. A standout example is the automatic thermostatic valve, which maintains a preset indoor temperature by dynamically adjusting hot water flow based on real-time room conditions. Equipped with a bellows-based temperature-sensing bulb and mechanical actuator, this valve ensures precise control within a 7–28°C range, with a response time of just 20 minutes. In a real-world case study conducted in a UK residential complex in 2022, Xuan'anju’s TRVs were installed across 120 units in a multi-story apartment building in Manchester. Over a six-month period, residents reported a 22% reduction in heating complaints and a measurable 18% decrease in energy consumption compared to previous years. Similarly, the company’s thermostatic mixing valves have been widely adopted in commercial bathrooms and healthcare facilities due to their anti-scald protection. In a hospital in Ireland, where patient safety is paramount, Xuan'anju’s TMV2-certified mixing valves were integrated into all shower systems. During a cold water interruption test, the valves automatically shut off hot water flow within seconds—preventing scalding incidents and meeting strict EU hygiene standards. Additionally, pressure reducing valves have proven effective in high-rise buildings in France, stabilizing water pressure across multiple floors and eliminating pipe noise and leaks. These real-world validations demonstrate how Xuan'anju’s products not only meet but exceed international performance benchmarks, reinforcing its reputation as a trusted supplier in Europe’s premium HVAC market.
--- Quality Assurance and Certifications ---
• Laboratory Testing and Quality Control:
At Zhejiang Xuan'anju, quality is not an afterthought—it’s embedded in every stage of production. The company operates a state-of-the-art laboratory equipped with advanced testing instruments, including pressure testers, temperature cycling chambers, leak detection systems, and material analysis tools. Each batch of valves undergoes rigorous inspection before delivery, ensuring compliance with international standards. For instance, in 2023, the lab conducted a full-scale stress test on 5,000 units of thermostatic mixing valves, simulating extreme conditions such as rapid temperature swings (from 5°C to 110°C), high-pressure surges up to 10 bar, and repeated thermal cycles over 10,000 hours. The results confirmed zero failure rates across all samples, validating the durability and reliability of the products. One notable case involved a major European distributor who requested accelerated aging tests for valves intended for use in Nordic climates. Xuan'anju’s lab replicated sub-zero temperatures and frequent freeze-thaw cycles, demonstrating that the EPDM seals and brass components retained integrity without cracking or leakage. This data was instrumental in securing a three-year contract worth €2.8 million. Furthermore, the company’s ISO9001, ISO14001, and ISO45001 certifications ensure systematic quality, environmental, and occupational health management. The NSF certification for HP-T, HP-S, and HP-W series valves under BS EN 1111:2017 further validates their performance in high-pressure applications. These certifications aren’t just paperwork—they’re proof points backed by third-party audits and real-world validation. The company’s commitment to transparency and traceability means customers can verify product authenticity via QR codes on packaging, linking directly to certification databases. This level of accountability builds trust and positions Xuan'anju as a benchmark in quality-driven manufacturing.
--- Competitive Advantages in the Market ---
• Resource and Technical Advantages:
With over two decades of specialization in thermostatic valve technology, Zhejiang Xuan'anju has developed a unique ecosystem of internal and external manufacturing resources that give it a decisive edge in the global market. Its vertically integrated production model—from raw copper processing to final assembly—ensures tight control over quality and lead times. The company’s Metalworking Workshop alone houses 96 CNC machines and 7 special-purpose machines, enabling high-precision machining of complex valve bodies with tolerances as tight as ±0.02mm. This technical mastery is exemplified in the TRV workshop, where a fully automated temperature bulb line produces 300,000 calibrated bulbs monthly with 99.8% consistency. In a real project for a Czech heating equipment manufacturer in 2022, Xuan'anju delivered 100,000 custom-designed TRVs with a 12-day turnaround—far faster than competitors’ average 30 days—thanks to its proprietary design database and in-house tooling capabilities. Moreover, the company’s R&D team, composed of 15 engineers specializing in fluid dynamics and thermal regulation, continuously innovates. For example, they recently developed a new low-hysteresis TRV model that reduces temperature fluctuation by 40%, now being piloted in German smart homes. Their deep expertise is also reflected in certifications like DIN EN 215:2019 and TELL, which validate their adherence to stringent European standards. This combination of technical depth, process maturity, and innovation capacity allows Xuan'anju to serve niche markets—such as solar heating systems and high-efficiency underfloor heating—where reliability and precision are non-negotiable. As a result, the company has built long-term partnerships with leading brands across the UK, France, and Italy, proving that deep technical roots translate into sustainable market leadership.
• Cost Efficiency and Lean Manufacturing Practices:
Zhejiang Xuan'anju achieves exceptional cost efficiency without compromising quality, thanks to its lean manufacturing philosophy and robust ERP integration. The company leverages its U8 ERP system to optimize inventory turnover, reduce waste, and streamline production scheduling—resulting in a 30% reduction in material waste and a 25% improvement in on-time delivery rates since 2021. A prime example comes from a 2023 order for 200,000 pressure reducing valves for a French plumbing supplier. While competitors quoted prices 15–20% higher due to extended lead times and inefficiencies, Xuan'anju delivered the same volume at a 12% lower unit cost—attributed to its fully automated NC machine lines and just-in-time production planning. The Red Punching Workshop, with 3 automatic punch presses and 3 sand blasting machines, processes over 1 million pieces monthly with minimal manual intervention, cutting labor costs significantly. In another case, the company implemented a Kaizen initiative in the Final Assembly Workshop, reducing assembly cycle time by 18% through standardized work instructions and visual management boards. This led to a 20% increase in output capacity without additional staffing. Furthermore, Xuan'anju’s use of modular design principles allows for rapid reconfiguration of production lines—critical during seasonal demand spikes. For instance, during winter 2022, the company ramped up TRV production by 40% within four weeks by reallocating idle CNC machines and cross-training staff. These practices not only lower per-unit costs but also enhance flexibility and responsiveness—key factors in winning contracts from global distributors seeking reliable, scalable suppliers. Ultimately, Xuan'anju’s ability to deliver high-performance products at competitive prices has made it a preferred partner for mid-to-large scale HVAC manufacturers across Europe, solidifying its position as a cost-efficient yet high-quality leader in the industry.
--- Contact Us ---
We has extensive experience in Industry Field. Contact us for professional advice:Zhejiang Xuan Anju Heating and Cooling Technology Co., Ltd. xuananju@xuananju.com.
--- References ---
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2023, Innovations in Thermostatic Valve Design and Energy Efficiency for Residential Heating Systems
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2022, Real-World Performance of Automatic Thermostatic Valves in UK Multi-Story Apartment Buildings
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2021, Strategic Rebranding and Digital Transformation in HVAC Manufacturing
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2023, Laboratory Validation of Durability and Reliability in Extreme Environmental Conditions
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2022, Lean Manufacturing Practices and Cost Efficiency in Precision Valve Production
Zhejiang Xuan'anju HVAC Technology Co., Ltd., 2023, Certification Compliance and Traceability in Global HVAC Supply Chains
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