Zhejiang Zhongya Instrument Co., Ltd. is a nationally recognized, specialized manufacturer of flow instruments and a key enterprise located in Wenzhou City, Zhejiang Province. We serve as a leading production and testing base for flow meters, dedicated to the research, development, and manufacturing of flow meters, flow measurement devices, and level instruments. Our company boasts a comprehensive range of advanced flow testing and calibration facilities, including an oil-flow real-flow standard setup equipped with state-of-the-art testing equipment. This enables us to perform real-flow calibration and verification on flowmeters with nominal diameters ranging from DN25 to DN300 mm.

Our company was established on October 26, 1976. It boasts a total building area of approximately 12,810 square meters, with net fixed assets valued at 16.6 million yuan and working capital amounting to 8 million yuan. Currently, we employ 91 staff members, including 73 engineering and technical personnel—comprising 5 senior engineers, 15 engineers, and 53 technicians. We have assembled a strong team of production and technical experts who are leaders in the flow instrumentation industry. Over the past 30-plus years since our founding, we have developed and manufactured five major series of industrial automation instruments, encompassing 10 product categories and more than 2,000 specifications. Since being rated as an AAA-level enterprise by regulatory authorities in 2002, our company has been consistently recognized by Wenzhou City for 13 consecutive years as a "Contract-Respecting and Credit-Worthy" business. In 2014, we earned the prestigious A-level "Contract-Respecting and Credit-Worthy" designation from Zhejiang Province, while in 2015, we were honored as a Science and Technology Enterprise in Zhejiang Province. Most recently, in 2016, we were again recognized as a Science and Technology Enterprise by Wenzhou City.

Zhejiang Zhongya Instrument Co., Ltd. is a nationally recognized, specialized manufacturer of flow instruments and a key enterprise located in Wenzhou City, Zhejiang Province. We serve as a leading production and testing base for flow meters, dedicated to the research, development, and manufacturing of flow meters, flow measurement devices, and level instruments. Our company boasts a comprehensive range of advanced flow testing and calibration facilities, including an oil-flow real-flow standard setup equipped with state-of-the-art testing equipment. This enables us to perform real-flow calibration and verification on flowmeters with nominal diameters ranging from DN25 to DN300 mm.

Our company was established on October 26, 1976. It boasts a total building area of approximately 12,810 square meters, with net fixed assets valued at 16.6 million yuan and working capital amounting to 8 million yuan. Currently, we employ 91 staff members, including 73 engineering and technical personnel—comprising 5 senior engineers, 15 engineers, and 53 technicians. We have assembled a strong team of production and technical experts who are leaders in the flow instrumentation industry. Over the past 30-plus years since our founding, we have developed and manufactured five major series of industrial automation instruments, encompassing 10 product categories and more than 2,000 specifications. Since being rated as an AAA-level enterprise by regulatory authorities in 2002, our company has been consistently recognized by Wenzhou City for 13 consecutive years as a "Contract-Respecting and Credit-Worthy" business. In 2014, we earned the prestigious A-level "Contract-Respecting and Credit-Worthy" designation from Zhejiang Province, while in 2015, we were honored as a Science and Technology Enterprise in Zhejiang Province. Most recently, in 2016, we were again recognized as a Science and Technology Enterprise by Wenzhou City.

The company’s main products include: the LBJ series metal scraper flowmeters, the LRP series three-rotor flowmeters, the ZQX swirl vortex flowmeters, the LJGZ series volumetric pipe-type flow measurement calibration devices, the ZZCY series self-powered differential pressure regulators, and the UQK explosion-proof float-level controllers—five key product lines along with 170 different specifications and medium-to-low-pressure valve assemblies. Notably, the LBJ series metal scraper flowmeters and three-rotor flowmeters produced by our company are based on technology licensed from Smith Corporation of the United States, benefiting from advanced design concepts and cutting-edge manufacturing techniques. These products feature Smith’s distinctive dual-single-shell structure, Smith instrument differential adjusters, and the reliable performance of the Smith 600LNC counter, earning high praise and strong recommendations from customers. In 2001, these innovative products underwent rigorous evaluation by a provincial-level technical appraisal committee composed of 13 renowned experts and scholars from academic, research, and technical institutions—including Sinopec Group, Tsinghua University, and the National Institute of Metrology—under the auspices of the Zhejiang Provincial Economic and Trade Commission. The resulting assessment confirmed that these products have reached the technological standards of similar domestic offerings, positioning them as high-quality alternatives capable of replacing imported counterparts. Additionally, the company has successfully obtained patent certifications in China for both its metal scraper flowmeters and three-rotor flowmeters.

Our company is recognized as an Advanced Metrology Enterprise in Zhejiang Province. We achieved ISO9001 quality system certification in 2001, followed by ISO14001 environmental management system certification and OHSAS18001 occupational health and safety management system certification in 2015. We are equipped with 80 sets of primary production equipment, 9 sets of product testing and calibration devices, as well as complete flow measurement systems. Our flagship products have already reached or closely approach international advanced standards—four of our products have been certified against international benchmarks—and we have two provincial-level excellent products. Additionally, our company features an in-house Automated Control Systems Engineering Department, enabling us to undertake comprehensive automation projects for external clients.

Our company has established 8 sales and service centers in major cities across the country, enabling us to provide users with convenient, fast, and high-quality services more efficiently. Guided by the principle of "Customer First," we prioritize product quality and offer timely technical support, product training, spare parts supply, as well as comprehensive after-sales maintenance and follow-up services tailored to meet the needs of industries such as petroleum, chemical, light industry, and municipal projects. We are committed to serving a wide range of sectors with dedication and excellence.