Ningbo Yinzhou Lishe Valve Hardware Factory is a private-owned metal valve manufacturer integrated research, development, design, production and sales. It is located in Nanmen Lishe of Ningbo, adjacent to Ningbo Lishe Airport with convenient transportation. 

Founded in 1986, the factory is specialized in the production of brass and copper metal valve, has strong technical force, the specialty of hard sealing production technology. In the nineties, the product sales were based on the hardware industry of Shanghai and throughout the country, and it has successfully obtained honor certificate issued by "Chinese Hardware Association". The factory has passed ISO9001 quality system certification and accumulated more than two decades of rich experience in production management.

In 2001, on the basis of consolidating original production and sales, the factory developed "Refrigerant welded ball valve"(low-temperature high-pressure ball valve) and "Refrigerant magnetic check valve" used in refrigeration system and with high-pressure-resistant structure, safe and practical design. 

The sealing ring in "Refrigerant welded ball valve" is composed by special raw materials, which has advantages of good performance, meeting the requirements of high and low temperature resistance change, sealed thread connection and appearance brazing, and lighter on-off torque by high-pressure. The valve adopts copper heat forging manufacturing process and CNC lathe machining and is welded by advanced welding equipment; passed high pressure test equipment 72 bar pressure test, thus to ensure the safe use of 48 bar work pressure. “Refrigerant welded ball valve " reflects features of high and low temperature resistance, high pressure resistance, low torque, clear valve body and high strength.

The valve body copper tube inner wall of "Refrigerant magnetic check valve" was made by high-precision processing technology, after rigorous testing and fixed by valve core hard-sealed with groove; without any sealant, and it reaches pressure requirement and no leakage. The materials of core is never demagnetization, the valve plate uses high-quality high-strength steel will never rust by special stamping, surface precision polishing, hard and hard sealing with valve core, and the reverse leakage rate is almost zero, thus the hard sealing skills of the factory shows. The “Refrigerant magnetic check valve” has precision structure, flexible on-off, clear appearance, easy installation and long service life.

After several years hardworking and continuous improvement, the product has leading quality and good using performance among similar products, has approved "CE" certificate and "ROHS" certificate. It has established long-term cooperation with domestic customers, as well as OEM for professional customers in Europe and the United States, export in strict accordance with "UL" inspection standards.

With the purpose of "high-quality, high-grade”, the factory is willing to cooperate with friends sincerely, and advance hand in hand!