Features: 1) Product information: the gate valves supplied are mainly used for adjusting water, steam, oil, gas, and natural gas in chemical industries 2) Standards: AWWA, DIN3352 F4/F5, BS5163, BS5150 3) Connection type: flanged type, push-on type, mechanical joint type, plain ends type 4) Material: a) Body : Ductile Iron GGG500-7 b) Wedge : D/I , core fully vulcanized with NBR or EPDM rubber c) Wedge Nut : Brass d) Stem : Stainless steel , BS970 431S29 or DIN17440x20Cr13 e) Gasket : NBR f) Bonnet : GGG500-7 g) O ring : NBR h) Washer : Carbon steel or Stainless steel . 5) Size: 50-400mm/2" - 16" 6) Pressure grade: PN10, PN16 7) Coating: a) Fusion-bonded epoxy 0.2-0.5mm inside and out side b) Coating as per customers' requirement 8) package : carton for each item , wooden boxes outside .