意大利阿托斯AGAM溢流閥,ATOS先導(dǎo)式溢流閥*
ATOS先導(dǎo)型溢流閥 Pilot-operated Pressure Relief Valve先導(dǎo)型溢流閥有多種結(jié)構(gòu),是一種典型的三節(jié)同心結(jié)構(gòu)先導(dǎo)型溢流閥,它由先導(dǎo)閥(Pilot Valve)和主閥(Main Valve)兩部分組成。錐式先導(dǎo)閥1、主閥芯上的阻尼孔(固定節(jié)流孔)5及調(diào)壓彈簧9一起構(gòu)成先導(dǎo)級(jí)半橋分壓式壓力負(fù)反饋控制,負(fù)責(zé)向主閥芯6的上腔提供經(jīng)過(guò)先導(dǎo)閥穩(wěn)壓后的主級(jí)指令壓力P2。主閥芯是主控回路的比較器,上端面作用有主閥芯的指令力P2A2,下端面作為主回路的測(cè)壓面,作用有反饋力P1A1,其合力可驅(qū)動(dòng)閥芯,調(diào)節(jié)溢流口的大小,zui后達(dá)到對(duì)進(jìn)口壓力P1進(jìn)行調(diào)壓和穩(wěn)壓的目的。
[1]1-錐閥(Pilot Valve)(先導(dǎo)閥);2-錐閥座(Poppet Seat);3-閥蓋(Valve Cap);4-閥體(Valve Body);5-阻尼孔(Orifice);6-主閥芯(Main Spool);7-主閥座(Main Valve Seat);8-主閥彈簧(Main Spring);9-調(diào)壓(Adjustment Spring) (先導(dǎo)閥)彈簧;10-調(diào)節(jié)螺釘;11-調(diào)節(jié)手輪。工作時(shí),液壓力同時(shí)作用于主閥芯及先導(dǎo)閥芯的測(cè)壓面上。當(dāng)先導(dǎo)閥1未打開(kāi)時(shí),閥腔中油液沒(méi)有流動(dòng),作用在主閥芯6上下兩個(gè)方向的壓力相等,但因上端面的有效受壓面積A2大于下端面的有效受壓面積A1,主閥芯在合力的作用下處于zui下端位置,閥口關(guān)閉。當(dāng)進(jìn)油壓力增大到使先導(dǎo)閥打開(kāi)時(shí),液流通過(guò)主閥芯上的阻尼孔5、先導(dǎo)閥1流回油箱。由于阻尼孔的阻尼作用,使主閥芯6所受到的上下兩個(gè)方向的液壓力不相等,主閥芯在壓差的作用下上移,打開(kāi)閥口,實(shí)現(xiàn)溢流,并維持壓力基本穩(wěn)定。調(diào)節(jié)先導(dǎo)閥的調(diào)壓彈簧9,便可調(diào)整溢流壓力。
先導(dǎo)式溢流閥AGAM-10/10/50/V-1SP-677-24DC
先導(dǎo)式溢流閥AGAM-10/20/210/50/V-1SP-677-24DC
先導(dǎo)式溢流閥AGAM-10/10/210/V-1SP-667-24DC
AGAM溢流閥,先導(dǎo)式ISO 6264 板式安裝,標(biāo)準(zhǔn)型或CE安全認(rèn)證型,可選PED選項(xiàng) 10, 20, 32 200 - 400 - 600
意大利阿托斯AGAM溢流閥,ATOS先導(dǎo)式溢流閥*部分型號(hào):
AGAM-10/10/100 34 AGAM-10/10/100-IX 230/50/60AC 34 AGAM-10/10/100-IX 24DC ,
AGAM-10/10/210 AGAM-10/10/210/V-IX 24DC AGAM-10/10/210-IX 230/50/60AC ,
AGAM-10/10/210-IX 24DC AGAM-10/10/210-IX 24DC 34/WG AGAM-10/10/350 34 ,
AGAM-10/10/350/V-IX 24DC AGAM-10/10/350-1X 24DC 34 AGAM-10/100 ,
AGAM-10/100 AGAM-10/100/V AGAM-10/11/100 34 AGAM-10/11/100/7PA-M-AO 24DC AGAM-10/11/100-IX 230/50/60AC AGAM-10/11/210-IX 230/50/60AC AGAM-10/11/210-IX 24DC AGAM-10/11/350/PA-GK-AO 24DC 22 AGAM-10/11/350-IX 110/50/60AC AGAM-10/11/350-IX 24DC AGAM-10/20/210/100-IX 24DC AGAM-10/20/350/100-IX 230/50/60AC 34 AGAM-10/20/350/210/V-IX 230/50/60AC 34 AGAM-10/20/350/210-IX 230/50/60AC 34 AGAM-10/20/350/210-IX 24DC 34 AGAM-10/21/350/100-IX 24DC 34 AGAM-10/21/350/210-IX 230/50/60AC 34 AGAM-10/210 ,AGAM-10/210/V 34 AGAM-10/22/100/100-IX 24DC 34 AGAM-10/350 AGAM-10/50 34 AGAM-20/10/100/V-IX 24DC 53 AGAM-20/10/210/V-IX 24DC 53 AGAM-20/10/210-IX 230/50/60AC AGAM-20/10/210-IX 24DC AGAM-20/10/350-IX 230/50/60AC AGAM-20/10/350-IX 24DC AGAM-20/100 AGAM-20/11/210/M-AO 220 21 AGAM-20/11/210/V-IX 24DC 53 AGAM-20/11/210-IX 230/50/60AC AGAM-20/11/210-IX 24DC ,
AGAM-20/11/350-IX 24DC 53 AGAM-20/210 AGAM-20/210/V 53 /WG AGAM-20/22/350/350-IX 24DC AGAM-20/350 AGAM-32/10/210-IX 24DC AGAM-32/10/350-IX 24DC AGAM-32/20/210/210/V-IX 230/50/60AC 53 AGAM-32/20/210/210-IX 230/50/60AC ,
AGAM-32/20/350/210-IX 24DC 53 AGAM-32/210 53 AGAM-32/350 AGAM-32/350/V 53 ,
ARAM-20/10/100/V-IX 110/50/60A ARAM-20/10/210-IX 24DC 72 ARAM-20/100 72 ,
ARAM-20/210 ARAM-20/350 72 ARAM-32/11/210-IX 110/50/60AC,
同心先導(dǎo)型溢流閥結(jié)構(gòu)圖(管式)