VGD40...系列双气阀
品牌:SIEMENS(西门子)
产地:德国 |
产品介绍 |
Double gas valves for use on gas trains, consisting of 2 safety shutoff valves of class A. Suited for use in connection with gases of gas families I...III.
The double gas valve is to be combined with 2 actuators of the SKP… line (e.g. to provide the functions of 2 safety shutoff valves in series, with different types of gas pressure governor if required).
In combination with the appropriate SKP… actuators, the gas valve also serves as a:
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Shutoff valve (in connection with the SKP10...)
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Control valve with shutoff function (in connection with the SKP20..., SKP27..., SKP50... or SKP70...) | |
安装 |
-
Ensure that the gaskets are fitted between the flanges
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Check to ensure the bolts on the flanges are properly tightened
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Check to ensure the connections with all components are tight | |
结构 |
The double gas valves VGD40... are double seat disk valves of the normally closed type. The stems are guided on both sides of the disks, thus ensuring a precise stroke and tight shutoff. To improve the control performance, the disks at the bottom are profiled. The patented double seats are closed by 2 springs. The spring of each stem exerts a pressure on the disk so that there is a defined closing force acting on each disk. The surface area proportions of the 2 valve disks per stem are such that the closing force increases as the inlet pressure increases (class A valve to EN 161). A strainer on the inlet side protects the valve and downstream controls against dirt. The double gas valves DN65…150 correspond to the standard valve sizes of single valves (EN 558). | 型号表 |
口径 |
流量(在10mbar压差下)m3/h |
型号 |
40 |
85 |
VGD40.040 |
50 |
100 |
VGD40.050 |
65 |
160 |
VGD40.065 |
80 |
250 |
VGD40.080 |
100 |
400 |
VGD40.100 |
125 |
580 |
VGD40.125 |
150 |
700 |
VGD40.150 | |
技术参数 |
主要参数 |
安全等级 |
A(EN161) |
可用气体 |
燃气1,2,3或空气 |
内部温度 |
-15...+60ºC |
功率 |
8VA |
安装位置 |
弹簧水平或竖直 |
材料 |
模压铸铝 |
型号 |
静态承压 |
动态承压 |
重量kg |
V1,V2间体积升 |
VGD20.403 |
600 |
600 |
3.2 |
0.75 |
VGD20.503 |
600 |
600 |
3.2 |
0.8 | | | |
环境条件 |
运输环境 |
IEC 721-3-2 |
内部条件 |
class 2K2 |
机械条件 |
class 2M2 |
温度范围 |
-15...+60ºC |
湿度 |
<95% |
运行环境 |
IEC 721-3-3 |
内部条件 |
class 3K5 |
机械条件 |
class3M2 |
温度范围 |
-15...+60ºC |
湿度 |
<95% |
不得进水 | | |