Zhejiang NaiBang Valve Co., Ltd. is a specialized company devoted into manufacture and sales of valves, the company situates in ou-bei town-the center of China's pumps & valves, with ground area 18800m2, machine workshop, assemble workshop and synthetic finished half - finished warehouse. The company possesses 210 precise equipments, the advanced numeral control machines ensure the flexibility and exchangeability of all the product parts. The company flourishes year by year, and its products have been widely used in lines of domestic large PowerStation configuration, dirty water processing, urban construction, petroleum-chemical, oil extraction, metallurgy, chemical fertilizer, paper production and pharmacy, exported to many countries and regions, gains the users' unanimous praise and confidence. The company has a modernized staffs of tech research and product development, ISO9001 certificated. And now the company has the capability of manufacturing big series of high temperature and hi-gh pressure power station gate valve, ball valve, globe valve, check valve, butterfly valve, with the strength of API valve, Wafer check valve and forged valve, and the wafer check valve mainly cover wafer single disc lift and swing check valves and wafer double disc swing check valves (H77, H76, H74, H72, H71, H46 and H44). Diameter of valves varies from DN15 to DN2000(1/2'-72' ), working pressure varies from PN1.6MPa to 42 MPa(150lb to 2500lb), and working temperature from -196 Celsius degree to +570 Celsius degree; The main body adopts WCB, WC6, WC9, Cr5Mo, 20Crmo, 12Crmov, 15Crmov, CF3m, CF8m. The company possesses full precise casting equipments, integrated physical and chemical gauges, experimentation equipments and test methods, as well CAD design capability, which ensure products always in high quality.