意大利(li)ATOS直動式減壓閥RZGO-A-010/210 ATOS減壓閥是通過調節,將進口壓力減至某需要的出口壓力,并依靠介質本身的能量,使出口壓力自動保持穩定的閥門。從流體力學的觀點看,減壓閥是個局部阻力可以變化的節流元件,即通過改變節流面積,使流速及流體的動能改變,造成不同的壓力損失,從而達到減壓的目的。然后依靠控制與調節系統的調節,使閥后壓力的波動與彈簧力相平衡,使閥后壓力在定的誤差范圍內保持恒定。 ATOS減壓閥的性能類別: (1)調(diao)(diao)壓范圍(wei)(wei):它是(shi)指減壓閥輸(shu)出壓力P2的可調(diao)(diao)范圍(wei)(wei),在(zai)此范圍(wei)(wei)內(nei)要求(qiu)達到規定(ding)的精度(du)。調(diao)(diao)壓范圍(wei)(wei)主(zhu)要與調(diao)(diao)壓彈簧的剛度(du)有關。 (2)壓力(li)特性(xing):它(ta)是指(zhi)流量g為定(ding)值(zhi)時,因輸(shu)(shu)入(ru)壓力(li)波(bo)動(dong)(dong)而(er)引起輸(shu)(shu)出(chu)(chu)壓力(li)波(bo)動(dong)(dong)的(de)特性(xing)。輸(shu)(shu)出(chu)(chu)壓力(li)波(bo)動(dong)(dong)越(yue)小,減(jian)壓閥的(de)特性(xing)越(yue)好。輸(shu)(shu)出(chu)(chu)壓力(li)必(bi)須(xu)低于(yu)輸(shu)(shu)入(ru)壓力(li)—定(ding)值(zhi)才(cai)基本上不隨輸(shu)(shu)入(ru)壓力(li)變化(hua)而(er)變化(hua)。 (3)流量特性:它(ta)是指輸(shu)入壓(ya)力(li)—定(ding)時,輸(shu)出(chu)壓(ya)力(li)隨輸(shu)出(chu)流量g的變(bian)(bian)化(hua)(hua)而變(bian)(bian)化(hua)(hua)的持性。當流量g發生變(bian)(bian)化(hua)(hua)時,輸(shu)出(chu)壓(ya)力(li)的變(bian)(bian)化(hua)(hua)越(yue)小(xiao)越(yue)好。一般(ban)輸(shu)出(chu)壓(ya)力(li)越(yue)低,它(ta)隨輸(shu)出(chu)流量的變(bian)(bian)化(hua)(hua)波動就越(yue)小(xiao)。 它可(ke)將閥(fa)前管路(lu)較高的(de)(de)液體壓(ya)(ya)力(li)減(jian)少至閥(fa)后(hou)管路(lu)所需(xu)的(de)(de)水(shui)(shui)平。這里的(de)(de)傳輸介質(zhi)主要是水(shui)(shui)。減(jian)壓(ya)(ya)閥(fa)廣泛用(yong)(yong)于(yu)高層建(jian)筑(zhu)、城市給水(shui)(shui)管網水(shui)(shui)壓(ya)(ya)過高的(de)(de)區(qu)域、礦井及其他(ta)場合,以保(bao)證給水(shui)(shui)系統(tong)(tong)中(zhong)各用(yong)(yong)水(shui)(shui)點(dian)獲得(de)適當的(de)(de)服(fu)務水(shui)(shui)壓(ya)(ya)和流量。鑒于(yu)水(shui)(shui)的(de)(de)漏失率和浪(lang)費(fei)程度幾乎同給水(shui)(shui)系統(tong)(tong)的(de)(de)水(shui)(shui)壓(ya)(ya)大小成正比,因此減(jian)壓(ya)(ya)閥(fa)具有(you)改(gai)善系統(tong)(tong)運行工(gong)況和潛在節水(shui)(shui)作用(yong)(yong),據統(tong)(tong)計(ji)其節水(shui)(shui)效果(guo)約為30%。 意大利阿托斯減壓閥RZGO部分型號: RZGA-A-010/210/M 20 RZGA-A-010/32/M/7 20 RZGA-A-033/80/M/7 31 RZGO-A-010/100 20 RZGO-A-010/210 20 RZGO-A-033/100 RZGO-A-033/210 RZGO-A-033/315 31 RZGO-AE-010/100 10 RZGO-AE-033/210 10 RZGO-TER-010/100 RZGO-TER-010/100/I 40 RZGO-TER-010/210 40 RZGO-TER-010/210/I 40 RZGO-TER-010/32 40 RZGO-TER-033/100 RZGO-TER-033/315 40 |