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主要零件和材质Mainpartsandmaterials序号NO零件名称Accessorname材质MaterialGB系列1上下阀体BodyQT450
主要零件和材质 Main parts and materials 产品结构特点 Construction features 1、中线蝶阀为整个蝶板与阀座在360°圆周内同心(中线)，具有双向密封功能，压力、流量可自由调节； 适用介质：适用于各种浓度的王水、氢氟酸和各种有机酸、强酸、强氧化剂等介质 技术规范 Technical specification 试验压力 Test prssure 蝶阀结构长度和外接尺寸 Main connection dimensions
序号
NO零件名称
Accessor name材质 Material GB系列 1 上下阀体 Body QT450, WCB, CF8, CF3, CF8M, CF3M 2 蝶板 Disc QT450, WCB, CF8, CF3, CF8M, CF3M 3 阀杆 Stem 20Cr13, 304, 304L, 316, 316L 4 阀座 Ling seat PTFE(F4), PCTFE(F3), EFP(F46), PFA, PO 5 O型圈 O ring FPM(氟橡胶 Viton) 6 弹性条(垫) Elastic sgnp Sir (硅橡胶 Silicon nrbber) 7 支架 Yoke WCB, CF8 8 螺柱 Bonnet bolt 35#, 304, 316, 316L 9 螺母 Nut 45#, 304, 316, 316L 10 蜗轮/手柄 Lever WCB+Cr
2、偏心蝶阀为二维方向偏心产品的凸轮效应会使密封副产生足够的密封比压，并且随着工作压力的升高，密封效果更理想；
3、四级加载弹性密封，保证了阀门内、外的零泄漏。
a: 轴与蝶阀一体外衬F46;
b: 轴头端面采用弹性O型圈和轴肩处刚性垫圈、弹性橡胶垫组合；
c: 轴的径向采用O型圈与金属轴套的组合；
d: 阀座镶嵌有弹性条的阀体槽内。
4、采用可弹性垫片定位准确，结构简单。(*采用O型圈是为了防止意外泄漏时的安全措施)。
1, the center line butterfly valve for the whole of the butterfly plate and valve seat in 360 ° circumferential concentric (middle), have two-way sealing function, pressure and flow rate can be adjusted freely;
2. The CAM effect of eccentric butterfly valve in the 2d direction eccentric product will make the sealing side produce sufficient sealing ratio pressure, and the sealing effect is more ideal as the working pressure increases.
3. Four-level loading elastic seal ensures zero leakage inside and outside the valve.
A: the shaft and butterfly valve are lined with F46;
B: the shaft end adopts the elastic o-ring and the axial shoulder rigid washer and elastic rubber pad;
C: the radial direction of the shaft adopts the combination of o-ring and metal bushing;
D: seat inlaid with elastic strip.
4. The elastic gasket is used to position accurately and the structure is simple. * use O rings to prevent accidental leaks.
产品特征 Spericfications
适用温度：-196~150℃
驱动方式：手动、气动、电动、液动等
公称压力：0.6~1.6MPa
公称通径：DN50~1200mm
Applicable media: Applicable to all kinds of concentrations of aqua regia,
hydrofluoric acid and various organic acids, strong acids and powerful oxidizing agents
Applicable temperature: -196~150℃
Driver: manual, pneumatic, electric, hydraulic, etc
Nominal pressure: 0.6~1.6MPa
Nominal size: DN50~1200mm设计依据 Design reference GB系列 GB series 设计标准 Design standard GB/T12238 结构长度 Face to face GB/T12221 连接法兰 End flange GB/T9113 HG20592 试验和检验 Test & inspection GB/T13927 压力等级
Pressure grade试验压力 Test pressure 公称压力 PN
Nominal pressure壳体试验
Sheil test正密封试验
Sealing test反密封试验
Sealing test气密封试验
Air seal test0.6 0.9 0.66 - 0.6 1 1.5 1.1 - 0.6 1.6 2.4 1.76 - 0.6 PN:0.6~1.6 公称通径
DNL
(mm)H1
(mm)H2
(mm)公称通径
DNL
(mm)H1
(mm)H2
(mm)50 43 165 80 400 102 480 295 65 46 175 90 450 114 490 315 80 46 195 95 500 127 540 345 100 52 210 110 600 154 660 400 125 56 235 120 700 165 850 480 150 56 260 140 800 190 930 580 200 60 310 175 900 203 995 625 250 68 360 200 1000 216 1040 660 300 78 395 240 1200 254 1295 780 350 78 420 265
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