Burkert氣動(dòng)比例閥2875
BURKERT寶德比例閥選型必須根據(jù)比例閥的用途來(lái)進(jìn)行選型,zui重要的選型參數(shù)是 Kv 值和壓力范圍。閥門(mén)的 Kv 值(單位 m3/h),該值是以介質(zhì)為水、20℃、入口壓力 1 bar、出口 0 bar 時(shí)測(cè)得。對(duì)于氣體,通常以 QNn 值表示。 QNn 值為空氣在 20℃、閥入口 6 bar、閥上壓降 1 bar 時(shí)的流量值(lN/min)。氣體的參考條件為絕壓 1.013 bar、溫度 0℃。除了 Kv 值,閥入口的zui大預(yù)壓力也是選閥(型號(hào)和通徑)的主要因素。
Burkert氣動(dòng)比例閥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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