手动式高压差调节阀

    手动式高压差调节阀由压差控制器、电动执行机构、调节阀、测压管以及旁通管道等组成，其工作原理是压差控制器通过测压管对空调系统的供回水管的压差进行检测，根据其结果与设定压差值的比较，输出控制信号由电动执行机构通过控制阀杆的行程或转角改变调节阀的开度，从而控制供水管与回水管之间旁通管道的冷冻水流量，最终保证系统的压差恒定在设定的压差值。当系统运行压差高于设定压差时，压差控制器输出信号，使电动调节阀打开或开度加大，旁通管路水量增加，使系统压差趋于设定值；当系统压差低于设定压差时，电动调节阀开度减小，旁通流量减小，使系统压差维持在设定值。

1.口径：3/8″-4″   1. size: 3/8″-4″ 

公称压力：16Mpa～42Mpa900Lb－3200Lb

适用温度：200℃－610℃  材质：F92、F91、W36、F22、A105

Nominal pressure: 16mpa-42mpa 900lb-3200lb

Temperature：200℃－610℃ Material：F92、F91、WB36、F22、A105

尺寸表 Dimensions

材质表 Component material

适用于：

高加事故放水系统阀门 锅炉定排系统阀门 锅炉事故放水阀门 主给水、锅炉排放水系统阀门

Application:

• high temperature heater accident drainage system valve •the water level valve of the instrument eliminating the oxygen •the valve used to circulate the condensing water again

• boiler regular drain-down system valve

• boiler continuous drain-down system valve •the re-heater reduces the lukewarm water valve •if boiler have accident, the valve used to turn on the water •direct-current ashes separator draining valve •the valve used to reduce the pressure of the boiler soot blower •main feed water system , boiler drain-down system valve •other big differential pressure easy to vaporize system valve

安装维护说明

1、 产品出厂时已经严格检验，请勿解体，可打光谱，可试压；

2、 阀门尽可能按阀杆垂直水平面安装，如需其他方法安装，请说明；

3、 安装时应使介质流向与阀体所示箭头方向一致（高进低出），切勿装反；

4、 第一次使用时，须全开阀门，对阀门及管道进行清洗。调整压板螺母，确保填料处于良好密封状态；

5、 运行中，当工况温度变化较大（如停机维修）时，检查并旋紧压板螺母，压紧填料。以防阀杆处外漏；

6、 更换阀芯（阀座、阀瓣）时，请在获得SWEK的技术支持后进行。

Installment and Maintenance instruction

1. Our valves have been examined strictly when leaving the plant, please do not disintegrate. You may hit the spectrum and carry on the pressure test.

2. Along the valve stem vertical horizontal plane to install the valve as far as possible, if you need other installment, please explain.

3. When installing the valve, you should cause the medium to flow consistent with the arrow directionCfrom high to low）, do not install instead.

4. When installing the valve, please open the valve completely, clean the valve and the pipeline. You should tighten the stem nut. This can guarantee the good seal of the padding.

5. In the working time, if the situation temperature changes greatly, please check and tighten the clamp nut, compact the padding, thus the outside leakage from the valve stem will be prevented.

6. When replacing the valve core（seat, petal）, please obtain 5WEK technical support.