CHUANGXING VALVE DIN standard gate valves are typical wedge gate valves designed and manufactured to German DIN standards covering materials of cast steel, stainless steel and alloy steel. The housing connection between body and bonnet can be classified as restrained or unrestrained flange seal, pressure self-sealing, and screwed seal. DIN 3352 gate valves can be manufactured either with rising stem(OS&Y) or non-rising stem. Rigid wedge and resilient wedge are available upon clients’ request.