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派克PARKER比例換向閥
PARKER派克比例換向閥通過調節(jié)輸入閥內電磁鐵的電壓信號來控制工作閥閥芯的移動,使閥口尺寸發(fā)生改變,從而完成與輸入電壓成比例的壓力、流量輸出的控制,改閥具有集成的電子元件,主級的閥芯位置可調。
派克PARKER比例換向閥、派克PARKER比例方向控制閥D*1FH系列先導式比例換向閥被用于控制流量,該閥具有集成的電子元件,主級的閥芯位置可調,該閥共有10通徑、16通徑、25通徑、32通徑幾種規(guī)格。應用于流量控制精確和可實現(xiàn)流量調節(jié),在快速/低速特性下的工作運行帶有閥芯位置監(jiān)控用于:壓力機控制,動態(tài)位置調節(jié)和壓力/流量閉環(huán)系統(tǒng)。
特點:
泄漏量小;
高頻響通油能力大;
準確的故障狀態(tài)診斷;
零庶蓋閥的機械式零點調節(jié);
高強度;
閥芯位置的位移反饋;
可選擇閥芯位置行程監(jiān)控。
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D*1FW、D*1FB系列先導式比例換向閥
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(guī)格。應用于通過調節(jié)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(jié)流量/速度可實現(xiàn)機械功能的自動化。
特點:
泄漏量??;
漸進的流量特性使得流量調節(jié)靈敏;
彈簧對中的主級;
比例先導;
安全系統(tǒng)的初始位置監(jiān)控;
D*1FB系列帶有集成的功率放大器;
D*1FW帶有數(shù)字式Snap-On功率放大器。
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D*1FS系列先導式比例換向閥
D*1FS系列先導式比例換向閥被用于控制流量,該閥采用EW系列模擬式功率放大器進行電控或采用VRD350/355數(shù)字式功率放大器,主閥芯的位置可調。該閥共有10通徑、16通徑、25通徑、32通徑幾種規(guī)格。應用于流量控制精確和可實現(xiàn)流量調節(jié),在快速/低速特性下的工作運行和柔和加速度以及延遲工作特性的改善。
特點:
泄漏量??;
流量調節(jié)靈敏;
彈簧對中的主級;
比例先導;
位置調節(jié)的主級;
安全系統(tǒng)的初始位置監(jiān)控;
帶有EW系列模擬式功率放大器的物美價廉的控制系統(tǒng)。
在功能拓展時,采用VRD350/335數(shù)字式功率放大器可優(yōu)化其線性和柔和性。
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D*6FH系列先導式換向閥
D*6FH系列先導式連續(xù)調節(jié)的換向閥被用于控制和調節(jié)流量。該閥具有集成的電子元件,主級閥芯位置可調。與標準的閥相比集成的持續(xù)的差動回路可提供更高的流量。閥共有10通徑、16通徑、25通徑幾種規(guī)格。應用于流量控制精確和可實現(xiàn)流量調節(jié),在快速/低速特性下的工作運行帶有閥芯位置監(jiān)控。
特點:
5個控制油道;
集成的持續(xù)的差動回路;
泄漏量?。?nbsp;
高頻響通油能力大;
準確的故障狀態(tài)論斷;
零遮蓋閥的機械式零點調節(jié);
高強度;
閥芯位置的位移反饋;
安全系統(tǒng)的監(jiān)控開關。
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