D943H-16C电动三偏心蝶阀
金属密封三偏心蝶阀利用偏心结构,做到了阀门启闭时蝶板与阀座间几乎无磨擦现象发生。阀杆的扭矩通过蝶板直接传递至密封面,从而杜绝了打开普通阀门时所常见的跳跃现象。这意味着偏心蝶阀几乎可以从0开度开始即进入可调控区域,直至90开度。其正常调控比是一般蝶阀2倍以上,调控比最高可达100：1以上。这为偏心蝶阀作为调控阀使用创造了良好的条件。
技术范围 Technical specification
设计依据
Design reference | GB标准 | ANSI标准 |
设计标准
Design standrd | GB/12237 | ANSI B16.34 |
结构长度
Face To face | 对夹连接
Wafer connecting | GB/12221 | ANSI B16.10 |
连接法兰尺寸
Connecting Flange Size | GB/9113、JB/T79 | ANSI B16.5 |
试验和检验
Test＆inspection | JB/T9002 | API598 |
注：系列蝶阀结构长度及连接法兰尺寸可根据用户要求设计制造。
Note:The structural length and connecting flange size of butterfly valve
serles can be designed and manufactured as perusers’requirements.
D943H-16C电动三偏心蝶阀主要零件材质表 Form of Major Parts Materials
序号
NO | 零件名称
Accessory name | 材质
Material |
| C | P | R |
| 1 | 内六角螺丝
Mild Sleel Hex Socket Screw | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 2 | 阀盖
Cover | WCB | 1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 3 | 垫片
Gasket | 不锈钢+柔性石墨
Stainless Steel+Graphite |
| 4 | 阀座
Seat | 1Cr18Ni9Ti | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 5 | 垫片
Gasket | 不锈钢+柔性石墨
Stainless Steel+Graphite |
| 6 | 蝶板
Butterfly Plate | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 7 | 圆柱削
Straight Pin | 45 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 8 | 下盖
Bottom Cover
| WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 9 | 垫片
Gasket | 不锈钢+柔性石墨
Stainless Steel+Graphite |
| 10 | 衬套
Bushing | PTFE+不锈钢
PTFE+Stainless Steel |
| 11 | 阀体
Body | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 12 | 阀杆
Stem | 1Cr13 | 1Cr18Ni9Ti | 1Cr18Ni12Mo2Ti |
| 13 | 支架
Yoke | WCB |
| 14 | 键
Key | 45 |
| 15 | 衬套
Bushing | PTFE+不锈钢
PTFE+Stainless Steel |
| 16 | 填料
Packing | 柔性石墨
Graphite |
| 17 | 压盖
Gland | WCB | ZG1Cr18Ni9Ti | ZG1Cr18Ni12Mo2Ti |
| 18 | 位置指示器
Location lndicator
| 塑料
Plactic |
注：系列蝶阀主要零部件及密封圈的材质可根据实际工况条件或用户特殊要求
设计选用。
Note:The structural length and connecting flange size of butterfly
valve series can be designed and manufactured as per uses’requirements.
■ 主要外形及连接尺寸
公称通径DN(mm)
| 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | 350 | 400 | 450 | 500 | 600 | 700 | 800 | 900 | 1000 |
L | 108 | 112 | 114 | 127 | 140 | 140 | 152 | 165 | 178 | 190 | 216 | 222 | 229 | 267 | 292 | 318 | 330 | 410 |
L1 | 43 | 46 | 49 | 56 | 64 | 70 | 71 | 76 | 83 | 92 | 102 | 113 | 127 | 154 | 165 | 190 | 203 | 216 |
H | 112 | 115 | 120 | 140 | 170 | 180 | 210 | 240 | 290 | 320 | 350 | 380 | 410 | 470 | 550 | 640 | 710 | 770 |
n-φd | 4-18 | 4-18 | 8-18 | 8-18 | 8-18 | 8-22 | 12-22 | 12-26 | 12-26 | 16-26 | 16-30 | 20-30 | 20-33 | 20-36 | 24-36 | 24-39 | 28-39 | 28-42 |
H1 | 根据所配执行机构而定 |
A | 根据阀门所需力矩而定，配置机型不同，外形尺寸也不相同 |
D | 165 | 185 | 200 | 220 | 250 | 285 | 340 | 405 | 460 | 520 | 580 | 640 | 715 | 840 | 910 | 1025 | 1125 | 1255 |
D1 | 125 | 145 | 160 | 180 | 210 | 240 | 295 | 355 | 410 | 470 | 525 | 585 | 650 | 770 | 840 | 950 | 1050 | 1170 |
