Rising stem of elastic seat gate valve, rising stem elastic seat gate valve is also quick and reliable to open and close, so it is mainly used in fire control and industry and generally fixed higher from the ground. Feature: 1) Standards: ISO9001:2000 a) Flange standard: GB/T 17241.6 GB9113 b) Experimental standard: GB13927 AP1598 2) Main parts material: Valve body: Grey Cast iron, ductile cast iron, cast steel Gate board: ductile cast iron + EPDM or NBR Gasket: NBR, EPDM Sealing ring: NBR Bracket: Grey Cast iron, ductile cast iron, cast steel Stem: Stainless steel Screw: Stainless steel Bonnet: Ductile cast iron, cast steel Stem nut: Copper alloy Hand wheel: Cast iron 3) Nominal pressure: 1.0～2.5MPa 4) Nominal diameter: 50～600mm 5) Medium applicable: water, oil, gas, etc 6) Working temperature: 0～80癈