Ningbo Yiji Valve Manufacturing Co., Ltd. was established in 1958 and is a national high-tech enterprise with over sixty years of history, holding qualifications for manufacturing large and medium-sized valves. It is also a national specialized, refined, unique, and innovative little giant enterprise, and has been included in the Ningbo Manufacturing Single Champion Cultivation Database. The company's registered capital is 100.08 million yuan. It is a qualified supplier to the China Urban Water Supply and Drainage Association, Sinopec, and CNOOC Group. It is a board member of the Valve Branch of the China General Machinery Industry Association and a vice president unit of the Water Supply and Drainage Equipment Branch of the China Building Metal Structure Association. The factory covers an area of 33,300 square meters and houses a provincial postdoctoral workstation and a provincial high-tech enterprise research and development center. It is also a base for innovation and entrepreneurship for master craftsmen. The company is equipped with senior and mid-level professional technicians, advanced precision processing equipment, specialized equipment, physical and chemical testing equipment, and a full range of valve inspection equipment.

The company's EG brand trademark is a well-known trademark in China and a national promotion brand. The company has obtained ISO9001 international quality system certification, ISO14001 environmental management system certification, ISO45001 occupational health and safety management system certification, EU CE product certification, UK WRAS certification, China CCCF fire protection product certification, measurement management system AAA certification, intellectual property management system certification, worm gear transmission device IP68 waterproof and dustproof certification, five-star after-sales service certification, and a special equipment manufacturing license from the General Administration of Quality Supervision, Inspection and Quarantine. Over the years, the company has participated in formulating multiple national standards and led or participated in formulating several enterprise group standards, is the technical standard setter for Double Eccentric Bi-directional Metal Seated Butterfly Valve. The DN2600 Double Eccentric double Metal Seated Butterfly Valve has been recognized as the first (set) product in Zhejiang Province for key areas of high-end equipment manufacturing. The company has accumulated over a hundred national valve patents. In recent years, it has been rated as an AAA credit-rated contract-abiding and credit-worthy unit by the Zhejiang Provincial Administration for Industry and Commerce, an AAA-rated bank credit rating unit, one of the top 100 taxpayers in Fenghua District, and the Mayor's Quality Award of Fenghua City. In December 2020, it was awarded the title of one of the top 100 enterprises in Ningbo City's six battles to overcome difficulties, three-years’ climbing action to accelerate high-quality development by the Ningbo Municipal People's Government.

The company's main products including double eccentric bidirectional soft-seal butterfly valves, double eccentric bidirectional metal hard-seal butterfly valves, nozzle-type metal seated silent check valves, soft-seal bottomless gate valves, liquid-controlled check butterfly valves, various slow-closing check valves, quick and composite exhaust valves, diaphragm-type rapid sludge discharge valves, stainless steel flat gate valves, backflow preventers, various valve extenders, as well as medium-pressure gate valves and globe valves. The pressure rating range is 0.6mpa to 10mpa, with product diameters ranging from DN25 to DN3600. Operating methods include direct manual operation, worm gear transmission, electric, hydraulic, and pneumatic. These products are primarily used in urban water supply, municipal drainage, wastewater treatment, metallurgy, chemical industry, power generation, shipbuilding, and other industries. On Dec. 18,2020, an appraisal panel composed of experts and scholars from the China Building Metal Structure Association, Valve Standardization Committee, Hefei General Machinery Research Institute Valve Research Institute, and water utilities evaluated the technical capabilities of the company's double eccentric bidirectional metal hard-seal butterfly valve. They unanimously agreed that the double eccentric bidirectional metal seal butterfly valve technology independently developed by Yiji Valve reached a leading domestic level. On Sep. 23,2021, an appraisal panel organized by the Water Supply and Drainage Equipment Branch of the China Building Metal Structure Association evaluated the nozzle-type metal seated silent check valve product developed by the company. They unanimously agreed that the nozzle-type metal seated silent check valve technology independently developed by Yiji Valve reached an advanced domestic level.

Guided by the corporate spirit of dedication and self-improvement, based on the values of professionalism, rigor, high-speed and reliability, and oriented towards the brand core of the unity of refinement and durability, the company provides end users with high-quality products and services with advanced technology and reliable quality.

The company is located in Fenghua, Ningbo, east of the East China Sea, with the national 5A scenic spot—Xikou, the most modern and cultural value of Chiang Kai-shek and his son Chiang Ching-kuo's former residence, we warmly welcome friends from all over the world to visit and guide.