產品名稱:P74JA+VB7200電動壓差旁通閥(fa)
更新日期:2015-10-04
訪問次數:1736
產品特點:P74JA+VB7200電動壓(ya)差旁(pang)(pang)通(tong)(tong)(tong)閥(fa)(fa)通(tong)(tong)(tong)過(guo)控制(zhi)(zhi)壓(ya)差旁(pang)(pang)通(tong)(tong)(tong)閥(fa)(fa)的(de)(de)開度控制(zhi)(zhi)冷(leng)凍水的(de)(de)旁(pang)(pang)通(tong)(tong)(tong)流量,從而(er)(er)使(shi)供回水干管(guan)兩端的(de)(de)壓(ya)差恒(heng)定。廣(guang)泛應用于(yu)空調集(ji)分水器之(zhi)間,熱力泵供回水之(zhi)間,可有效保持(chi)設備(bei)不被(bei)損壞(huai)。電動壓(ya)差旁(pang)(pang)通(tong)(tong)(tong)閥(fa)(fa)常(chang)用于(yu)氣(qi)體(ti)或液(ye)體(ti)系(xi)統(tong)(tong),控制(zhi)(zhi)氣(qi)體(ti)或液(ye)體(ti)管(guan)路(lu)(lu)與回路(lu)(lu)之(zhi)間的(de)(de)壓(ya)差。把電動壓(ya)差旁(pang)(pang)通(tong)(tong)(tong)閥(fa)(fa)安裝在系(xi)統(tong)(tong)水泵附(fu)件的(de)(de)旁(pang)(pang)通(tong)(tong)(tong)管(guan)路(lu)(lu)中,當系(xi)統(tong)(tong)壓(ya)差增大(da)而(er)(er)超過(guo)控制(zhi)(zhi)閥(fa)(fa)設定值時,閥(fa)(fa)門則(ze)進(jin)而(er)(er)開大(da),使(shi)更多的(de)(de)水流經旁(pang)(pang)通(tong)(tong)(tong)閥(fa)(fa),從而(er)(er)使(shi)系(xi)統(tong)(tong)壓(ya)差減(jian)
精心為您【P74JA+VB7200電動壓差旁通閥】是(shi)上海喬邑閥門(men)制造有(you)限公司生產銷(xiao)售的主(zhu)要(yao)產品(pin)(pin)之,公司常(chang)年備有(you)大量庫存現貨以出(chu)廠價(jia)直(zhi)銷(xiao),我們直(zhi)努力為客(ke)戶(hu)提供全套工業閥門(men)的解決方案,讓客(ke)戶(hu)購(gou)(gou)買到物(wu)美價(jia)廉的產品(pin)(pin),選購(gou)(gou)!
產品簡介:
P74JA+VB7200電動壓差旁通閥通過控制壓差旁通閥的開度控制冷凍水的旁通流量,從而使供回水干管兩端的壓差恒定。廣泛應用于空調集分水器之間,熱力泵供回水之間,可有效保持設備不被損壞。電動壓差旁通閥常用于氣體或液體系統,控制氣體或液體管路與回路之間的壓差。把電動壓差旁通閥安裝在系統水泵附件的旁通管路中,當系統壓差增大而超過控制閥設定值時,閥門則進而開大,使更多的水流經旁通閥,從而使系統壓差減小。相反,壓差的減小導致閥門開度減小從而使系統壓差增加。
壓(ya)(ya)差(cha)旁通閥P74JA壓(ya)(ya)差(cha)控(kong)制器組合了兩(liang)個具有高靈敏度的(de)壓(ya)(ya)力元件(jian),元件(jian)兩(liang)端的(de)壓(ya)(ya)力旦改變,即(ji)引起開關機(ji)構動作來控(kong)制設備,諸(zhu)如馬達驅動閥門。開關機(ji)構提供SPDT非快(kuai)速作用(yong)(浮動)動作,因此共(gong)用(yong)的(de)可移(yi)動觸點,會接(jie)觸二(er)個固定觸點之(zhi),或者停留在(zai)二(er)者之(zhi)間(無接(jie)觸)。
樓宇自控閥門是包含制冷、制熱等空調系統在內的各種閥門,應用于風機盤管、冷卻塔、分集水器等各個管道中,涵蓋了電動閥、關斷閥、流量閥等。
詳細產(chan)品有(you):電(dian)(dian)動(dong)(dong)兩(liang)通(tong)(tong)(tong)閥(fa)(fa)、電(dian)(dian)動(dong)(dong)壓(ya)(ya)差(cha)旁(pang)通(tong)(tong)(tong)閥(fa)(fa)、電(dian)(dian)動(dong)(dong)三(san)通(tong)(tong)(tong)閥(fa)(fa)、電(dian)(dian)動(dong)(dong)混流(liu)閥(fa)(fa)、電(dian)(dian)動(dong)(dong)二(er)通(tong)(tong)(tong)調節閥(fa)(fa)、電(dian)(dian)動(dong)(dong)壓(ya)(ya)差(cha)旁(pang)通(tong)(tong)(tong)閥(fa)(fa)、動(dong)(dong)態(tai)平(ping)衡(heng)(heng)電(dian)(dian)動(dong)(dong)壓(ya)(ya)差(cha)旁(pang)通(tong)(tong)(tong)閥(fa)(fa)、動(dong)(dong)態(tai)平(ping)衡(heng)(heng)電(dian)(dian)動(dong)(dong)兩(liang)通(tong)(tong)(tong)閥(fa)(fa)、風(feng)機(ji)盤(pan)管閥(fa)(fa)、電(dian)(dian)動(dong)(dong)壓(ya)(ya)差(cha)旁(pang)通(tong)(tong)(tong)閥(fa)(fa)、電(dian)(dian)動(dong)(dong)壓(ya)(ya)差(cha)控(kong)制閥(fa)(fa)、溫控(kong)器、電(dian)(dian)動(dong)(dong)二(er)通(tong)(tong)(tong)球閥(fa)(fa)等。
性能特點:
①單刀雙閘,全封閉的Penn制開關;
②1/4"喇叭壓力漲管接于觸感元件上,令現場安裝簡易;
③直讀式標尺可迅速確定設定點;
④不需移動外罩便能改變壓差設定(ding)。
執行器參數:
型號 | VA-7000 | VA-7100 | VA-7102 |
動作/控制 | 可逆,遞增控制 | 比例式控制正轉或逆轉 | |
馬達種類型 | 帶磁離合器的雙向同步馬達 | ||
馬達壓 | 24VAC,50/60Hz,10VA | 220V | 24VAC,50/60Hz,10VA |
力矩 | 2500牛頓 | ||
環境溫度 | 運作:1℃至+55℃ 儲存:-20℃至65℃ | ||
zui大相對濕度 | 90%不結露 | ||
控制信號 | 24V/AC | 220V/AC | DC O-10V或4-20mA |
反饋信號 | 無 | DC O-10V或4-20mA |
閥體參數:
①公稱通徑:DN25-DN400
②泄漏量:少于Kv值的0.03%
③流速特性:等百分比
④壓差調節范圍:0.5~4bar(7.14~57psig)
⑤運行壓差:0.14bar(2psig)
⑥開關觸點容量:50HZ,A.C.220V,6A/24V,4A
⑦開關(guan)觸點形式:SPDT
部件材質:
①閥體:球墨鑄鐵、鑄鋼
②閥桿:304不銹鋼
③閥瓣:黃銅、不銹鋼
④密封材料:聚四氟乙烯、丁腈橡膠
⑤執行器支架:壓鑄鋁合金
⑥驅動(dong)器頭(tou)蓋:阻燃ABS工程塑料IP40
外形尺寸:
型號 | 通徑 | L | H | D | b | a | f | 法蘭尺寸 | 行程mm |
P74JA+VB7200 | DN65 | 250 | 148 | 185 | 20 | 145 | 18 | 4 | 42 |
P74JA+VB7200 | DN80 | 300 | 185 | 200 | 20 | 160 | 18 | 8 | 42 |
P74JA+VB7200 | DN100 | 350 | 206 | 220 | 20 | 180 | 18 | 8 | 42 |
P74JA+VB7200 | DN125 | 365 | 227 | 250 | 22 | 210 | 18 | 8 | 42 |
P74JA+VB7200 | DN150 | 415 | 272 | 285 | 22 | 240 | 22 | 8 | 42 |
P74JA+VB7200 | DN200 | 510 | 279 | 340 | 30 | 295 | 22 | 12 | 42 |
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