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限流止回閥

  • 產品名稱:免費黃色視頻下載:限流止回閥
  • 產品型號:LH45X
  • 產品口徑:DN20-600mm
  • 產品壓力:1-2.5Mpa
  • 產品材質:鑄鐵、鑄鋼、不銹鋼
  • 聯系電話:021-51061127
  • 聯系傳真:021-51062214
  • Email:fashengfamen@126.com
  • 聯系人:陳云非
  • 聯系手機:18217570461
  • QQ:203398752
  • 公司名:上海閥盛閥門制造有限公司
  • 帳號:03416900040048386
  • 開戶行:農行上海水清南路支行
  • 售后承諾:質保一年,質量三包:包修、包換、包退。

上海(hai)閥(fa)盛閥(fa)門制造有限(xian)(xian)公司(si)主要生產限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa),可(ke)提供限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)價格,限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)說明書,限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)實物圖(tu),限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)結構圖(tu),限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)外形尺(chi)寸,限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)執行標準,限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)工(gong)作(zuo)原理(li),限(xian)(xian)流(liu)止(zhi)回(hui)(hui)閥(fa)作(zuo)用特點。

一、限流止回閥概述:
限流止回閥主要用于多泵并聯使用時安裝與水泵壓出口,起限制水泵工作流量,防止停泵回流作用。

限流止回(hui)閥功能和作用:

一(yi).限(xian)(xian)流(liu)(liu)(liu)(liu)功能(neng)該閥(fa)(fa)(fa)(fa)安裝于(yu)水(shui)泵(beng)(beng)(beng)(beng)(beng)出口(kou)(kou),在單泵(beng)(beng)(beng)(beng)(beng)啟(qi)動和(he)非全數設(she)(she)計工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)泵(beng)(beng)(beng)(beng)(beng)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)時(shi),多(duo)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)泵(beng)(beng)(beng)(beng)(beng)起(qi)限(xian)(xian)制(zhi)(zhi)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)作(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong),使(shi)泵(beng)(beng)(beng)(beng)(beng)在較(jiao)高(gao)效(xiao)率狀態下工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo);防(fang)(fang)止(zhi)電動機愛水(shui)泵(beng)(beng)(beng)(beng)(beng)低(di)(di)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)、大(da)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang)、低(di)(di)效(xiao)率時(shi),發生過載現象(xiang);防(fang)(fang)止(zhi)超額定(ding)(ding)(ding)(ding)電流(liu)(liu)(liu)(liu)燒電機現象(xiang)的(de)發生,同時(shi)起(qi)到一(yi)定(ding)(ding)(ding)(ding)的(de)節能(neng)效(xiao)果。其限(xian)(xian)流(liu)(liu)(liu)(liu)原理為:依據水(shui)泵(beng)(beng)(beng)(beng)(beng)的(de)設(she)(she)計工(gong)況揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng),導閥(fa)(fa)(fa)(fa)自動檢測并(bing)控(kong)制(zhi)(zhi)水(shui)泵(beng)(beng)(beng)(beng)(beng)的(de)實際工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng),以(yi)限(xian)(xian)制(zhi)(zhi)水(shui)泵(beng)(beng)(beng)(beng)(beng)的(de)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang),限(xian)(xian)制(zhi)(zhi)電機的(de)負載。該閥(fa)(fa)(fa)(fa)設(she)(she)定(ding)(ding)(ding)(ding)一(yi)個控(kong)制(zhi)(zhi)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)氣揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng),當水(shui)泵(beng)(beng)(beng)(beng)(beng)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)低(di)(di)于(yu)控(kong)制(zhi)(zhi)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)時(shi)閥(fa)(fa)(fa)(fa)門(men)(men)做關(guan)閥(fa)(fa)(fa)(fa)動作(zuo)(zuo)(zuo)(zuo)(zuo),使(shi)實際工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)加(jia)大(da);當水(shui)泵(beng)(beng)(beng)(beng)(beng)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)大(da)于(yu)設(she)(she)定(ding)(ding)(ding)(ding)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)時(shi)閥(fa)(fa)(fa)(fa)門(men)(men)全開,閥(fa)(fa)(fa)(fa)門(men)(men)阻力極小。控(kong)制(zhi)(zhi)氣揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)的(de)設(she)(she)定(ding)(ding)(ding)(ding)可(ke)以(yi)按電機額定(ding)(ding)(ding)(ding)電流(liu)(liu)(liu)(liu)設(she)(she)定(ding)(ding)(ding)(ding),也可(ke)以(yi)按高(gao)效(xiao)率工(gong)況設(she)(she)定(ding)(ding)(ding)(ding),該閥(fa)(fa)(fa)(fa)門(men)(men)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)設(she)(she)定(ding)(ding)(ding)(ding)值可(ke)調,一(yi)般出廠設(she)(she)定(ding)(ding)(ding)(ding)值為設(she)(she)計工(gong)況揚(yang)程(cheng)(cheng)(cheng)(cheng)(cheng)。二.止(zhi)回(hui)(hui)功能(neng).該閥(fa)(fa)(fa)(fa)的(de)止(zhi)回(hui)(hui)功能(neng)完全等同于(yu)微阻緩(huan)閉止(zhi)回(hui)(hui)閥(fa)(fa)(fa)(fa),且無關(guan)閉噪聲(sheng),零(ling)回(hui)(hui)流(liu)(liu)(liu)(liu)。此閥(fa)(fa)(fa)(fa)主要(yao)用(yong)(yong)(yong)(yong)于(yu)多(duo)泵(beng)(beng)(beng)(beng)(beng)并(bing)聯使(shi)用(yong)(yong)(yong)(yong)時(shi)安裝與(yu)水(shui)泵(beng)(beng)(beng)(beng)(beng)壓出口(kou)(kou),起(qi)限(xian)(xian)制(zhi)(zhi)水(shui)泵(beng)(beng)(beng)(beng)(beng)工(gong)作(zuo)(zuo)(zuo)(zuo)(zuo)流(liu)(liu)(liu)(liu)量(liang)(liang)(liang),防(fang)(fang)止(zhi)停泵(beng)(beng)(beng)(beng)(beng)回(hui)(hui)流(liu)(liu)(liu)(liu)作(zuo)(zuo)(zuo)(zuo)(zuo)用(yong)(yong)(yong)(yong)。該閥(fa)(fa)(fa)(fa)采(cai)用(yong)(yong)(yong)(yong)導閥(fa)(fa)(fa)(fa)-主閥(fa)(fa)(fa)(fa)構造(zao),結(jie)構緊(jin)湊,重量(liang)(liang)(liang)較(jiao)輕。

限流止回閥主要(yao)零件(jian)材質如下表(biao):

零件名稱
材質
閥體、閥蓋
鑄鐵、鑄鋼、不銹鋼
閥桿
鉻不銹鋼
閥瓣
碳鋼、不銹鋼+丁腈橡膠
O形圈
丁腈橡膠
二、限流止回閥主要外形尺寸:
限流止回閥
公稱通徑
尺    寸(mm)
DN(am)
L
A1
A
H1
H
F
20
150
200
282
106
172
116
25
160
200
282
106
172
116
32
180
200
282
106
172
116
40
200
210
320
137
225
168
50
203
210
320
137
225
168
65
216
215
330
145
270
180
80
241
220
330
178
289
210
100
270
230
410
232
375
284
125
292
245
420
286
420
310
150
330
260
420
318
450
370
200
400
280
430
413
722
463
250
480
300
450
502
769
525
300
550
320
460
600
906
625
350
622
340
470
638
1480
705
400
685
360
480
677
1027
778
450
750
360
480
677
1027
778
500
811
410
780
750
1110
690
600
935
456
888
850
1286
785
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