Purchase Qty. Reference FOB Price
1-9 Pieces US$295.00
10-14 Pieces US$278.00
15-29 Pieces US$260.00
30+ Pieces US$243.00
Product Description
DN500 PN16 Cast Iron Body Rubber Coated Plate Swing Check Valve Backflow Preventer Nominal pressure 1.6 2.5 4.0 Test pressure(Mpa) Shell strength test 2.4 3.7 6.0 Seal test(liquid) 1.7 2.7 4.4 Seal test(Gas) 0.5~0.7 Suitable medium Water,steam,oil Niter acids oil Suitable ...