VQ40F,VQ40H,VQ40Y,V型球阀产品特点 V型切口的球芯与金属阀座之间具有剪切作用，特别适用于含纤维、微小固体颗粒、料浆等介质； 蜗轮传动V型切断球阀还具有调节并可靠定位能力，流量特性为近百分比，可调范围广； 采用板簧加载的可动阀座结构，阀座与球芯不会产生卡阻或脱离等问题，密封可靠，适用寿命长。
VQ40F,VQ40H,VQ40Y,V型球阀主要零件材料 | 序号NO | 材料标准Material零件名称
Nameof parts | 材料牌号Stamdard | | 碳钢Carbon Steel | 不锈钢Stainless Steel | | GB | ASTM | GB | ASTM | | 01 | 双头螺母Stud | 35CrMoA | A193-B7 | 1Cr17Ni2 | A193-B8M | | 02 | 螺母Nut | 45 | A194-2H | OCr18Ni | A194-8M | | 03 | 底盖Lower cover | 25 | A105 | 1Cr18Ni9Ti1Cr18Ni12Mo2Ti | F304/F316/F304L/F316L | | 04 | 垫圈Gasket | 氟橡胶；PTFE;金属夹石墨Viton ; PTFE; Metel backed graphite | | 05 | 止推轴承Lover stem | 金属夹PTFEMetel backed graphite | | 06 | 下阀杆轴承Lover stembearing | 金属夹PTFEMetel backed graphite | | 07 | 下阀杆Lover stem | 2Cr13 | A276-410 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti | F304/F316/F304L/F316L | | 08 | 球体Ball | ZG1Cr18Ni9Ti渗氮 | CF8渗氮 | 1Cr18Ni9Ti/1Cr18Ni12Mo2Ti渗氮 | F304/F316/F304L/F316L渗氮 | | 09 | 阀体Body | WCB | A216-WCB | ZG1Cr18Ni9Ti/ZG1Cr18NI12Mo2TI | CF8/CF8M/CF3/CF3M | | 10 | 阀座O型圈Seat”O”ring | 氟橡胶Viton | | 11 | 阀座Seat | 2Cr13渗氮 | A276-410 | 1Cr18Ni9Ti1Cr18Ni12Mo2Ti渗氮 | F304/F316/F304L/F316L渗氮 | | 12 | 球阀键Body key | 40Cr | 1Cr17Ni2 |
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