意大利ATOS減壓閥(fa)RZGA-A-033/80/M/7 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)壓(ya)(ya)(ya)(ya)范(fan)圍(wei)：它是指減壓(ya)(ya)(ya)(ya)閥輸出(chu)壓(ya)(ya)(ya)(ya)力P2的(de)(de)可調(diao)范(fan)圍(wei)，在此范(fan)圍(wei)內要(yao)(yao)求(qiu)達到(dao)規定(ding)的(de)(de)精度(du)。調(diao)壓(ya)(ya)(ya)(ya)范(fan)圍(wei)主要(yao)(yao)與調(diao)壓(ya)(ya)(ya)(ya)彈簧(huang)的(de)(de)剛度(du)有(you)關。 (2)壓(ya)力(li)(li)特性：它是指流(liu)量g為定值時，因輸(shu)(shu)入(ru)壓(ya)力(li)(li)波(bo)動(dong)而(er)引起輸(shu)(shu)出壓(ya)力(li)(li)波(bo)動(dong)的特性。輸(shu)(shu)出壓(ya)力(li)(li)波(bo)動(dong)越小，減壓(ya)閥(fa)的特性越好(hao)。輸(shu)(shu)出壓(ya)力(li)(li)必須低于輸(shu)(shu)入(ru)壓(ya)力(li)(li)—定值才基本上不隨輸(shu)(shu)入(ru)壓(ya)力(li)(li)變(bian)化(hua)而(er)變(bian)化(hua)。 (3)流(liu)量特性：它是指輸入(ru)壓(ya)力—定時(shi)(shi)，輸出(chu)壓(ya)力隨(sui)輸出(chu)流(liu)量g的(de)變(bian)化而變(bian)化的(de)持性。當流(liu)量g發(fa)生(sheng)變(bian)化時(shi)(shi)，輸出(chu)壓(ya)力的(de)變(bian)化越小越好。一般輸出(chu)壓(ya)力越低(di)，它隨(sui)輸出(chu)流(liu)量的(de)變(bian)化波動(dong)就(jiu)越小。 它可將(jiang)閥(fa)前管(guan)(guan)路(lu)較高(gao)(gao)的液體(ti)壓(ya)力減(jian)(jian)(jian)少至(zhi)閥(fa)后管(guan)(guan)路(lu)所需(xu)的水(shui)(shui)(shui)(shui)平。這里(li)的傳輸介質主(zhu)要是水(shui)(shui)(shui)(shui)。減(jian)(jian)(jian)壓(ya)閥(fa)廣泛用(yong)(yong)(yong)于(yu)高(gao)(gao)層建筑、城市給水(shui)(shui)(shui)(shui)管(guan)(guan)網水(shui)(shui)(shui)(shui)壓(ya)過高(gao)(gao)的區域、礦井及其他(ta)場合，以保證給水(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)中各(ge)用(yong)(yong)(yong)水(shui)(shui)(shui)(shui)點獲得適當的服(fu)務水(shui)(shui)(shui)(shui)壓(ya)和流量。鑒于(yu)水(shui)(shui)(shui)(shui)的漏失率和浪費程度(du)幾乎同給水(shui)(shui)(shui)(shui)系(xi)統(tong)(tong)的水(shui)(shui)(shui)(shui)壓(ya)大小成正比，因此減(jian)(jian)(jian)壓(ya)閥(fa)具有(you)改善系(xi)統(tong)(tong)運行工況和潛在節水(shui)(shui)(shui)(shui)作用(yong)(yong)(yong)，據統(tong)(tong)計其節水(shui)(shui)(shui)(shui)效果約為30%。 意大利ATOS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 |
