Parker派克閥 D*1FW、D*1FB系列先導式比例換向閥 D41FWB32FC4NLW0
D*1FW/ D*1FB系列先導式比例換向閥被用于控制流量。
D*1FW系列采用PWD00A-400功率放大器進行電控；
D*1FB系列采用集成的電子元件插裝在閥上組成一體。
該閥共有10通徑、16通徑、25通徑、32通徑幾種規格。應用于通過調節斜坡信號可使閥芯柔和換向，以此來減小液壓和機械沖擊，通過電氣方式調節流量/速度可實現機械功能的自動化。
特點：
泄漏量小；
漸進的流量特性使得流量調節靈敏；
彈簧對中的主級；
比例先導；
安全系統的初始位置監控；
D*1FB系列帶有集成的功率放大器；
D*1FW帶有數字式Snap-On功率放大器。
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