Wafer-Typ-Signal Drosselklappe

16years experience,2years guarantee DN40-600,PN10/16;Body:CI DI WCB SS ISO9001,CE,meets ANSI,BS,DIN,JIS zero leakage Material for main parts Parts name Material Body Ductile cast iron,cast steel,Alloy steel, stainless steel Disc Grey cast iron,ductile cast steel,cast steel,stainless steel and hoc material Seal ring Manifold rubber,such as EPDM, PTFE,NBR,Viton,CR Stem 2Cr13,stainless steel Packing O-ring,flexible graphite Butterfly valve seal material choice and apporpriate tempersture Material variety Neoprene Styene rubber EPDM PTFE Silicon rubber Fluorine rubber Resistance highest temperature 82°C 93°C 150°C 232°C 250°C 204°C Resistance lowest temperature -40°C -40°C -40°C -268°C -70°C -23°C Suitable working temperature ≤65°C ≤80°C ≤120°C ≤200°C ≤200°C ≤180°C