|
結(jié)構(gòu)及用途 Structure
and purpose
該閥是采用高精度先導(dǎo)式控制流量，適用于控制流量和壓力管路，保持預(yù)定流量不變，將過大流量限制在一個預(yù)定值，并將上游高壓適當(dāng)減低，即使主閥上游的壓力變化也不會影響下游的流量，該閥一改常規(guī)節(jié)流閥及使用孔扳或純機械地減少流域面積的原理，利用相關(guān)導(dǎo)閥，最大限度地減少能量在節(jié)流過程中的損失，該閥控制靈敏、安全可靠、調(diào)試簡單、使用壽命長。
This valve uses a high accuracy pilot operated flow control
and is suitable for flow and pressure pipeline control to
keep the preset flow unchanged.1imit an extra-big flow at a
preset value and properly lower the high pressure on the
upstream．the flow at the downstream will not be affected
even if the pres-sure of the main valve at the upstream
varies.1t changes the principle for a throttle valve to
reduce the basin area purely mechanically or by way of using
orifices and utilizes the related pilot valve to reduce the
energy loss during throttling to the utmost extent and
features sensitive control,safety,reliability,easy debugging
and long duration. |
