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产品展示 >> SIEMENS燃气电磁阀

VRF10...系列燃气单阀

VRF10...系列燃气单阀
产品说明:
VRF10...系列燃气单阀

品牌:SIEMENS(西门子)

产地:德国

 产品介绍

Gas valves designed for gas trains for use with slightly aggressive biogases or recycling gases. The two-port valves are of the normally closed type. They can be combined with electrohydraulic actuators type SKP... or electromechanical actuators type SQX...

The VR... gas valves are designed for use with the following types of slightly aggressive gases:

  • Biogases

  • Waste gases

  • Digester gases

  • Other recycling gases

  • Air

They are used primarily in gas-fired combustion plant.

The valves operate as safety shutoff valves, gas pressure governor and air / gas ratio controller.

The chemical composition or aggressiveness of each type of biogas or recycling gas is different and depends on a number of factors.

Aggressiveness increases especially:

  • as the hydrogen sulfide content H2S increases

  • the higher the moisture content of the gas, if condensation takes place inside the valve

If is not possible to provide general information about the resistance and life expectancy of the VR... valves when used with recycling gases. The user must decide for himself whether the valve materials are suited for use with the relevant type of recycling gas.

For safety reasons, we strongly recommend to:

  • install 2 valves in series

  • install a gas valve proving device

  • visually inspect the valves at 6- to 12-month intervals

 结构

The VRF... valves are of the normally closed one-way type and feature a flat disk. Their stem is guided on both sides of the disk, ensuring precise axial stroke and tight shutoff. The closing force of the return spring is supported by the prevailing gas pressure. The VRF... valves are supplied with a contoured disk and with no stroke limitation. A removable strainer made of stainless steel protects seat and disk as well as downstream components against contamination.

 型号表
口径 型号 运行承压mbar 流量(在1mbar压差下)m3/h 测点数(Rp1/4) 点火燃气接口数(G3/4)
40 VFR10.404 600 29.6 4 -
50 VFR10.504 600 48.8 4 -
65 VFR10.654 600 72.3 2 2
80 VFR10.804 600 85.4 2 2
 技术参数
主要参数
安全等级 AEN161
可用气体 燃气123或空气
内部温度 0...+60ºC
法兰 PN16,ISO7005-2
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
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