Shanghai Dayu valve produce co.,ltd (called Dayu for short) is a Sino-US joint venture which was set up in 1981 located at 1280 Panjing Road, baoshan District.  Dayu has a land area of over 14,000 square meters with more than 280 staff members 15% of which are senior engineer and technicians. Our company mainly produces various kinds of forged steel and cast steel valves,such as gate valve ,globe valve,check valve ball valve, cryogenic valve,solenoid valve,reducing valve, adjusting valve,safty valve,butterfly valve,throttle valve,draining valve,angle valve,needle valve, diaphragm valve etc.For the products ,the nominal bore varies from 1/4 to 24(DN6mm-DN600mm),the pressure is from 150LB to 2500LB(0.1mpa-42.0mpa) and the working temperature from -196??to 680?? The materials for the valve products mainly cover various types of Carbon steel,cast steel Alloy Steel, Stainless steel, Monel etc.  Dayu valves are extensively used in high building,fire-fighting system,metallurgy,water company,petrochemistry,electric power etc.   Dayu now is enjoying great reputation all over the country with his excellent service and high quality products which are also well sold in the USA and nations and regions in southeast Asia and middle East Cherishing first-class quality of products,excellent performance and competitive price, Dayu people sincerely expect to establish long term and stable cooperative relationship with customers from all walks of life in the world to create the brilliant future together.