•  Butterfly Valve Series - Flanged Expansion Butterfly Valve SD342X/F/H
Butterfly Valve Series - Flanged Expansion Butterfly Valve SD342X/F/H

Product Introduction


产品结构特点 Construction features

伸缩阀适用于温度≤425℃,公称压力≤1.6MPa的食品、医药、化工、石油、电力、轻纺、造纸等给排水、气体管道上作调节流量和截流介质的作用,具有补偿管道热胀冷缩的功能。

其主要特点为:

1、设计新颖、合理,结构独特,重量轻,操作方便,启闭迅速;

2、伸缩蝶阀除了能作调节和截流作用,补偿管道温差所产生的热胀冷缩功能外,还能为安装更换、维修阀门提供方便;

3、密封部位可调节更换,密封性能可靠等特点。

Expansion valve is suitable for the temperature of 425℃ or less and nominal pressure of 1.6 MPa or less food, medicine, chemical, petroleum, electric power, textile,paper and other water supply and drainage, for adjusting flux on the gas pipeline and intercepting the role of the media, has the function of compensating pipe heat bilges cold shrink.

Its main features are:

1. The design is novel and reasonable, the structure is unique, the weight is light, 

the operation is convenient, the opening and closing fast;

2. In addition to adjusting and intercepting the butterfly valve, it can also provide convenient installation and replacement and maintenance of valve.

3. The sealing parts can be adjusted and replaced, and the sealing performance is reliable.


产品特征 Spericfications

适用介质:食品、石油、化工、电力、造纸和

适用温度:-29~350℃

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:DN100~2000mm

Applicable media: Gas, dust and flue gas

Applicable temperature: -29~350℃

Driver: manual, pneumatic, electric, hydraulic, etc

Nominal pressure: 0.6~1.6MPa

Nominal size: DN100~2000mm



技术规范 Technical specification

设计依据    Design reference GB系列 GB series
设计标准 Design standard GB/T12238  JB/T8527
结构长度 Face to face GB/T12221
连接法兰 End flange GB/T9113  GB/T17241.6
试验和检验 Test & inspection GB/T13927


主要零件和材质 Main parts and materials

序号
   NO
零件名称
   Accessor name
材质 Material
GB系列
1 阀体 Body QT450-10 0.5Cr0.5Ni WCB CF8
2 蝶板 Disc QT450-10 0.5Cr0.5Ni WCB CF8
3 密封圈 Sealing ring EPDM NBR 304
4 阀杆 Stem 20Cr13  304  316
5 伸缩管 QT450-10 0.5Cr0.5Ni WCB CF8
6 填料 Packing 石墨  橡胶


蝶阀结构长度和外接尺寸 Main connection dimensions

PN:0.6~1.6
公称通径
   DN
L
   (mm)
L1
   (mm)
H1
   (mm)
H2
   (mm)
公称通径
   DN
L
   (mm)
L1
   (mm)
H1
   (mm)
H2
   (mm)
100 216 174 110 170 600 420 370 390 490
125 232 186 123 182 700 446 396 450 560
150 239 194 140 210 800 476 426 515 625
200 264 214 170 238 900 506 456 560 685
250 296 235 195 270 1000 516 466 610 750
300 300 250 222 300 1200 560 510 725 880
350 320 270 252 330 1400 590 540 840 987
400 332 282 285 368 1600 630 585 960 1158
450 355 305 310 410 1800 680 630 1060 1260
500 365 315 335 440 2000 730 680 1165 1365


试验压力 Test prssure

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 test
0.6 0.9 0.66 - 0.6
1.0 1.5 1.1 - 0.6
1.6 2.4 1.76 - 0.6