Specification DN50-DN600 number 500 Description sacks ------------------------------------------ -------------------------------------- I. [dark bar resilient seated gate valve] is Details: Product Name: dark bar resilient seated gate valve 1 Product Features: dark bar resilient seated gate valve, gate utilization overall compensation package of plastic deformation to achieve a good sealing effect, to overcome the general bad valve seals, leaking and rusting phenomenon, there are more effective saving installation space. It can be widely used for water, sewage, construction, petroleum, chemical, food, pharmaceutical, textile], electric power, shipbuilding, metallurgy, energy systems and other fluid lines to use as a regulator and shut-off devices. Dark bar resilient seated gate valve price, dark bar resilient seated gate valve quotes, dark bar resilient seated gate valve manufacturers. Second, the main component material: NO Part Name Material 1 Body gray iron, ductile iron, cast iron ductile iron gate 2 overcoat EPDM or nitrile rubber hex bolts carbonization process 4 3 nitrile rubber seals EPDM 5 bonnet gray iron, ductile iron, cast steel 6 stem stainless steel 7 "O" ring seal NBR, EPDM 8 thrust axis Cheng Xiqing stainless steel bolts 10 9 ductile iron gland , cast 11 nitrile rubber dust cover 12 hand wheel (drive cap) cast iron three main technical parameters: Nominal pressure: 1.0 ~ 2.5MPa Nominal diameter: 50 ~ 400mm Working temperature: 0 ~ 120 ℃ Suitable medium: water, oil, gas and other flange standards: GB / T17241.6GB9113 test standards: GB13927API598 four, dark bar resilient seated gate valve main connection Dimensions: DN 50 65 80 100 125 150 200 250 300 350 400 450 500 600 L 178 190 203 229 254 267 292 330 356 381 406 432 457 508 Hmin (full off) 313 332 372 424 497 562 680 837 948 1010 1220 1280 1480 1665 Hmax (full) 355 375 415 476 5,406,007,208,759,901,050 1,245,131,015,601,750