零件名称Part name材料Material 阀体Body、阀盖cover铸钢cast steel、不锈钢 stainless steel、内衬liningF4、F46阀瓣Disc优碳钢 excellent carbon steel、不锈钢 stainless steel、衬liningF4、F46阀杆Stem2Cr13、不锈钢 stainless steel填料PackingPTFE(F4)聚四氯乙烯阀杆螺母 Stem nut2HMN58-2-2手轮 HandwheelHT200 ■衬氟直流截止阀标准PTFE-Lined DC globe valve standard