Burkert气动比例阀2875

BURKERT宝德比例阀选型必须根据比例阀的用途来进行选型，zui重要的选型参数是 Kv 值和压力范围。阀门的 Kv 值（单位 m3/h），该值是以介质为水、20℃、入口压力 1 bar、出口 0 bar 时测得。对于气体，通常以 QNn 值表示。  QNn 值为空气在 20℃、阀入口 6 bar、阀上压降 1 bar 时的流量值（lN/min）。气体的参考条件为绝压 1.013 bar、温度 0℃。除了 Kv 值，阀入口的zui大预压力也是选阀（型号和通径）的主要因素。

Burkert气动比例阀2875

The type selection of BURKERT baode proportional valve must be selected according to the purpose of proportional valve. The most important selection parameter is Kv value and pressure range. Kv value of valve (m3 / h), the value is the medium for water, 20 ℃, inlet pressure of 1 bar, export 0 measured when the bar. For gases, usually expressed as QNn values. QNn value of air at 20 ℃, valve 6 bar, valve on 1 bar pressure drop of flow values (lN/min). The reference conditions for absolute pressure of the gas 1.013 bar, temperature 0 ℃. In addition to the Kv value, the maximum pre-pressure of the valve inlet is also the main factor of the valve (model and size)。

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