... manual emergency release；手动应急释放装置 manual flow gate；手动流量阀门 manual flow gate control handle；手动流量阀门控制手柄 ...
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手动流量阀门控制手柄 manual flow gate control handle
气流调节阀：气流调节扭与挡风板均为高密度PP材质，用304不锈钢方棒连接，手动调节外部阀门旋钮，控制气流量。
Damper: both gas flow regulating button and wind board are high grade PP material, connected with 304 stainless steel bar, manually adjust the outside valve knob, control air flow.
配合电动执行器可以实现远程阀门流量开度控制，在无电源情况下也可以手动进行操作。
With electric actuator, it's can be controlled through valve flow and also can be operated manually when without power.
对大型空调系统而言，采用手动调节阀调节过程复杂，手动调节前端阀门，后端流量会受影响。
Of large air-conditioning system, using the manual control valve regulating the complex process of manually adjusting the front-end valves, back-flow will be affected.
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