力士樂庫存DBETX-1X/315G24-25NZ4M

穩(wěn)壓作用:溢流閥串聯(lián)在回油路上，溢流閥產(chǎn)生背壓，運動部件平穩(wěn)性增加。

力士樂庫存DBETX-1X/315G24-25NZ4M

系統(tǒng)卸荷作用:在溢流閥的遙控口串接溢小流量的電磁閥，當(dāng)電磁鐵通電時，溢流閥的遙控口通油箱，此時液壓泵卸荷。溢流閥此時作為卸荷閥使用。

 

安全保護(hù)作用:系統(tǒng)正常工作時，閥門關(guān)閉。只有負(fù)載超過規(guī)定的極限(系統(tǒng)壓力超過調(diào)定壓力)時開啟溢流，進(jìn)行過載保護(hù)，使系統(tǒng)壓力不再增加(通常使溢流閥的調(diào)定壓力比系統(tǒng)工作壓力高10%~20%)。

 

 

實際應(yīng)用中一般有:作卸荷閥用，作遠(yuǎn)程調(diào)壓閥，作高低壓多級控制閥，作順序閥，用于產(chǎn)生背壓(串在回油路上)。

 

 

溢流閥一般有兩種結(jié)構(gòu):1、直動型溢流閥 。2、先導(dǎo)式溢流閥。

 

對溢流閥的主要要求:調(diào)壓范圍大，調(diào)壓偏差小，壓力振擺小，動作靈敏，過載能力大，噪聲小。

力士樂庫存DBETX-1X/315G24-25NZ4M

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