Control Valve lly.doc

正在处理您的请求请稍等. Control Valve Product overview A control valve is the valve (valve plate) that rotates around a fixed axle vertical to the passage, and it is composed of the electronic-type electric actuator of the rotary-type angular travel and the butterfly valve, and falls into the category of rotary high-performance regulating and switching valve. It can receive current signals or voltage signal inputs from industrial automatic control instruments, and could be used for fluid medium proportion adjustment of process pipeline or two-position switch control, to realize automatic control of flow, pressure, temperature, liquid level and other parameters of the flow media. It is widely used for media like natural gas, liquid, sticky liquid, dense seriflux or ash content, and suspended particle. Product structure It is composed of the valve body, lining layer (polytetrafluoroethylene or rubber) and (stainless steel valve plate and chromium-plated steel valve plate) valve shaft. The clipper-built structural design of media is similar to a straight line, with a good adjusting capability. The sealing structure is the central line sealing, and the sealing capability is quite reliable, with bidirectional sealing and zero leakage. It could be installed at any position. Instruction for installation and use of electric butterfly valve 1. Before installation, check whether the labels and certificates of inspection of the valves meet requirements for use, and clean them after check. The valves not installed and used should be stored in a dry room. The valves to be stored for a long time should be cleaned and dried regularly, and anti-rust oil should be applied. The two ends of the valve should be sealed using the blind plate protective flange sealing surface. 2. The valve should be installed according to the flow direction of the media; horizontal installation is preferred. 3. The connecting bolts between the butterfly valve and the pipeline should be tightened in a criss-cross manner, to avoid uneven stress, which may result in leakage at the flange connection. 4. During installation of the butterfly valve, the butterfly plate should be at the closed position to prevent the foreign matters from entering the valve cavity and injuring the sealing surface. If the user proposes a pressure test, the test could only be conducted after both ends are butt-clamped using flanges. 5. For connection of valves and pipeline, the butt-welded steel flange or special flange for butterfly valve should be used on the pipeline. If the flat-welded steel flange is used, the inner hole of the flange should be of the size of that of the gasket to ensure an effective sealing surface for the gasket. 6. The opening/closing stroke of the control mechanism of the electric butterfly valve has been adjusted before its delivery. To avoid direction error upon powering on, the user should turn the switch to 1/3 of the switch position before the first time of powering on, and check whether the indicating dial direction is in accordance with opening direction of the valve. Control Valve Product overview A control valve is the valve (valve plate) that rotates around a fixed axle vertical to the passage, and it is composed of the electronic-type electric actuator of the rotary-type angular travel and the butterfly valve, and falls into the category of rotary high-performance regulating and switching valve. 控制阀是一种围绕垂直于走廊的固定车轴旋转的阀板，它由旋转型角位移的电力促动器和蝶形阀构成，分为高性能控制阀和开关阀两种。 It can receive current signals or voltage signal inputs from industrial automatic control instruments, and could be used for fluid medium proportion adjustment of process pipeline or two-position switch control, to realize automatic control of flow, pressure, temperature, liquid level and other parameters of the flow media. 它能接收当前以及从工业自动控制设备输入的信号，并且能够用于工艺管和双位开关控制的流体介质比例调整，从而实现对流量，温度，液面以及其它介质流量参数的自动控制。 It is widely used for media like natural gas, liquid, sticky liquid, dense seriflux or ash content, and suspended particle. 它也被广泛用于类似于自然气体液体、粘稠液体、浓稠浆液或是含灰量以及悬浮颗粒的介质。 Product structure 生产构成 It is composed of the valve body, lining layer (polytetrafluoroethylene or rubber) and (stainless steel valve plate and chromium-plated steel valve plate) valve shaft. 它由阀体，覆盖层（聚四氟乙烯或是合成橡胶）以及（不锈钢阀板和镀铬钢阀板）阀轴。 The clipper-built structural design of media is similar to a straight line, with a good adjusting capability. 这种介质的流线型构造设计与直线型构造设计相似，具备很好的调节功能。 The sealing structure is the central line sealing, and the sealing capability is quite reliable, with bidirectional sealing and zero leakage. 密封结构是中心线密封，并且密封能力相当可靠，配备双向密封和零泄漏。 It could be installed at any position. 它能被安装在任何方位。 Instruction for installation and use of electric butterfly valve 电力蝶形阀的使用和安装说明 1. 一、 Before installation, check whether the labels and certificates of inspection of the valves meet requirements for use, and clean them after check. 在安装之前，检查蝶形阀的标签和检验证明是否符合使用要求，并且在检查之后清理它们。 The valves not installed and used should be stored in a dry room. 不能安装和使用的蝶形阀应该被贮藏于干燥的室内。 The valves to be stored for a long time should be cleaned and dried regularly, and anti-rust oil should be applied. 准备很长时间后才会使用的蝶形阀应该定期清洗和弄干，需要使用防锈油。 The two ends of the valve should be sealed using the blind plate protective flange sealing surface. 蝶形阀的两端在盲板保护边缘密封表层。 2. 二、 The valve should be installed according to the flow direction of the media; horizontal installation is preferred. 蝶形阀应该根据介质流动方向安装；最好使用水平安装。 3. 三、 The connecting bolts between the butterfly valve and the pipeline should be tightened in a criss-cross manner, to avoid uneven stress, which may result in leakage at the flange connection. 蝶形阀和工艺管之间的连接螺栓应该十字交叉拧紧，防止可能会导致凸缘链接泄漏的受力不均。 4. 四、 During installation of the butterfly valve, the butterfly plate should be at the closed position to prevent the foreign matters from entering the valve cavity and injuring the sealing surface. 在安装蝶形阀的时候，蝶板应该安在近处来阻止外界事物进入气门空穴并伤害密封表层。 If the user proposes a pressure test, the test could only be conducted after both ends are butt-clamped using flanges. 如果使用者打算测试压力，只能在凸缘两端都对夹之后才能测试。 5. 五、 For connection of valves and pipeline, the butt-welded steel flange or special flange for butterfly valve should be used on the pipeline. 关于蝶形阀和工艺管的链接，对接焊接钢凸缘或是蝶形阀特殊的凸缘应该被用于工艺管上。 If the flat-welded steel flange is used, the inner hole of the flange should be of the size of that of the gasket to ensure an effective sealing surface for the gasket. 如果使用平面焊接钢凸缘，它里面的洞应该和衬垫规格一样，以此确保衬垫的密封有效。 6. 六、 The opening/closing stroke of the control mechanism of the electric butterfly valve has been adjusted before its delivery. 蝶形阀控制原理开关中程必须在传送之前调整。 To avoid direction error upon powering on, the user should turn the