ShuangHeng valve  Co., Ltd was established in 1993, located in Jinshan Industrial zone, Jinshan District,Shanghai City, Occupied 35000 square meter and 300 employees working around the clock. Manufacturing and supplying various kinds of  valves for oil and gas industry, Petro-chemical, Chemical industry, Metallurgy, Foodstuff, Paper making and construction, sulfuric acid plant etc.
   We set up CAD valve design center, valve inspection center and test center.Production facility we have :Vertical NC LATHE,processing center,NC machine tool, NC Boring and milling machine tool ; Germany imported spectrum analyzer and material testing machine,sonigauge,advanced test bench. Among of then,the Vertical NC LATHE can process valve with biggest size DN4000.
     All sold  product must be tested and inspected in test locale by our company colleague;we are very luck for Servicing our every customers.
   Our product as follows:
standard:ANSI Standard,BS Standard,DIN Standard,JIS Standard etc.
Material:Cast Steel(A216-WCB,A352-LCB,A217-WC1/WC5/WC6/WC9), Forged Steel(A105,F5,F11,F22,LF2),Stainless Steel(A351 CF8/CF8M/ CF3/CF3,A182 F304/F316/F304/F316L),Allay steel(ALLOY20),Titanium alloy etc.
Size:from 1/2 inches to 160 inches from 15mm~4000mm. Valve:Gate valve,Globe valve,Check valve,Ball valve,Butterfly valve, Plug valve etc.
Connect:Flanged ends,Butt-welding ends,Socket welding ends,Threaded ends etc. Pressure grade:ANSI CLASS 150,CLASS 300,CLASS 600,CLASS 800,CLASS 900, CLASS 1500,CLASS 2500,DIN PN6,PN10,PN16,PN25,PN40,PN64,PN100,PN160, JIS 5K,10K,20K etc.
     We are certified by international certificates such as ISO9001 International quality certificates, ISO 14001environment system ,API6D, CE/ PED, etc.
     Our products are exported to worldwide. Thinking from your point of view, We provides also professional OEM & ODM service. Our mission is to strive to be a ?one-stop? worldwide supplier with competitive pricing, high-quality valves, on-time delivery, and reliabl