供应SKP70...系列燃气电磁阀

产品说明： 
SKP70...系列燃气阀门执行器
**：SIEMENS（西门子）

产地：德国
 
 产品介绍 
Air / gas ratio controllers with integrated safety shutoff function for natural gas, town gas or liquid gas in the low pressure range. Electro-hydraulic actuator for delayed opening and rapid closing.

The VG… gas valves with their electro-hydraulic SKP70... actuators are designed for use with gas families I, II, III and with air. They are used primarily in gas-fired combustion plant. The actuators open slowly and close rapidly. All types of VG… gas valves can be combined with the SKP70... actuators which are fitted to the valve body by means of 4 screws contained in the terminal compartment. The square flange can be turned in steps of 90°, thus offering a choice of 4 different mounting positions. The actuator can be mounted or replaced while the valve is under pressure. Sealing materials are not required. The SKP70... features an integrated precision gas pressure controller. This type of actuator with its integrated controller not only reduces the length of the gas train, but usually also permits the selection of a smaller valve size (refer to Flow chart in the valve′s data sheet). The actuator can also be supplied with limit or auxiliary switches, e.g. for indicating the fully closed position.

The SKP70... for use with forced draught gas burners controls the pressure of the combustion air so that the gas to air ratio remains constant over the entire output range (shifting the setpoint by the static pressure of the combustion air). Changes in the air volume caused by voltage fluctuations, dirty fan wheels and the like have therefore no impact on the quality of the combustion process – in contrast to conventional ratio control. Using the SKP70..., deviations from the correct gas to air ratio caused by varying pressures in the combustion chamber can be eliminated in a straightforward manner. To accomplish this, the SKP70... can be connected to the combustion chamber via an additional impulse pipe, using the combustion chamber pressure as a disturbance ＆#118alue.
 
 型号表 
主电压 AC100...110V AC220...240V 
标准版本
 
不带辅助开关IV - SKP70.110B27 
带辅助开关IV SKP70.111B17 SKP70.111B27 
大型号版本
 
带辅助开关IV - - 
不带辅助开关IV SKP70.121B17 SKP70.121B27 
 
 技术参数 
主要参数 主要电压 AC220V -15%...AC240V +10% 
  AC100V -15%...AC110V +10% 
主频率 50...60Hz ±6% 
功率 9...13.5VA 
辅助开关 6A,AC250V 
辅助开关设置范围 4...96% 
全部开启时间 6...12s 
关闭时间 <1s 
负荷从大转小时的较小时间 5s 
允许测试压力（燃气） 1bar 
允许运行压力（燃气） 200mbar 
保护等级 IP54 
重量 
不带压力控制器 1250g 
带压力控制器 1650g 
 
 
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(低于0ºC，打开时间增加) 
湿度 <95% 
不得进水 
 
 
 

批发说明