电动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。
电动V型球阀 QV47Y型V型球阀
电动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
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti
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
1Cr18Ni9Ti
1Cr18Ni12Mo2Ti渗氮
F304/F316/F304L/F316L
渗氮
12
球阀键Body key
40Cr
1Cr17Ni2
13
上阀杆轴承
Stem bearing
PTFE;PPL
14
阀杆填料
Stem packing
石墨 Graphite
15
填料压环
Packing ring
2Cr13
A276-410
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
渗氮
F304/F316/
F304L/F316L
16
填料压盖
Stuffing gland
WCB
A216-WCB
ZG1Cr18Ni9Ti
ZG1Cr18NI12Mo2TI
CF8/CF8M/
CF3/CF3M
17
螺钉Bolt
35CrMoA
A193-B7
1Cr17Ni2
A193-B8M
18
支架Yoke
WCB
19
上阀杆Stem
2Cr13
A276-410
1Cr18Ni9Ti/1Cr18Ni12Mo2Ti
F304/F316/F304L/F316L
20
键Key
40Cr
1Cr17Ni2
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