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點擊圖片查看原圖900X-10C,900X-25C,900X-40C,900X-10P,900X-25P,900X-40P,緊急關閉閥
900X緊急關閉閥產品簡介
900X緊急關閉閥，是一種用于消防用水與生活用水并聯的供水系統中，用來調配水方向的閥門，當火災發生時，消防急需大量用水，900X緊急關閉閥立即切斷生活用水，確保主夠的消防用水，當消防停止用水，壓力減小時，閥門自動打開，呈現常開狀態，恢復生活供水。該閥使系統無需另設專門的消防單獨供水管網，大大節約了建設成本和用水量。閥門控制靈敏度高，安全可靠，調試簡便，使用壽命長。
900X緊急關閉閥工作原理
當主閥出口壓力低于導閥設定的壓力時，導閥此時處于開通狀態，主閥上腔壓力與主閥出口壓力相等，進口與吃口存在壓差，水流經閥口出口流出，當消防泵氣泵時，或變平泵壓力升高時，超過導閥設定壓力，由主閥進口向導閥管控制室壓力升高，作用在彈簧壓力增大，向下壓緊，帶動閥芯下移，使導閥關閉，此時主閥進口壓力通過節流閥補充到主閥閥蓋上腔，因閥瓣受到向下壓力大于向上推力，主閥關閉
值得注意的是，進口壓力小于設定壓力是，主閥處于開啟狀態，進口壓力大于設定壓力，閥瓣關閉。
900X緊急關閉閥技術參數
|
公稱壓力Mpa
|
殼體實驗壓力Mpa
|
密封實驗壓力Mpa
|
適用介質
|
適用溫度
|
|
1.0
|
1.5
|
1.1
|
水
|
0~80℃
|
|
1.6
|
2.4
|
1.76
|
||
|
2.5
|
3.75
|
2.75
|
900X緊急關閉閥主要零件
|
零件名稱
|
材質
|
|
閥體，閥蓋
|
鑄鐵，鑄鋼，球墨鑄鐵
|
|
閥座
|
青銅，不銹鋼
|
|
閥瓣
|
碳鋼，不銹鋼，丁晴橡膠
|
|
閥桿
|
青銅，不銹鋼
|
|
膜片壓板
|
鑄鋼，不休鋼
|
|
彈簧
|
不銹鋼
|
900X緊急關閉閥連接尺寸
|
DN
|
20
|
25
|
32
|
40
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
|
L
|
150
|
160
|
180
|
200
|
210
|
245
|
265
|
290
|
330
|
355
|
505
|
555
|
610
|
650
|
|
H1
|
247
|
247
|
247
|
278
|
278
|
298
|
313
|
350
|
365
|
420
|
450
|
470
|
490
|
526
|
|
H2
|
342
|
342
|
342
|
395
|
395
|
405
|
430
|
510
|
560
|
585
|
675
|
730
|
760
|
840
|
900X-10C-DN50,900X-25C-DN125,900X-40P-DN125,900X-16C-DN125,900X-10C-DN300,
900X-10C-DN150,900X-10C-DN200,900X-10C-DN250,900X-10C-DN80,900X-10C-DN100,
900X-25C-DN20,900X-25C-DN25,900X-25C-DN32,900X-25C-DN40,900X-25C-DN350
900X-25C-DN50,900X-25C-DN65,900X-25C-DN80,900X-25C-DN100,900X-10C-DN125,
900X-25C-DN150,900X-25C-DN200,900X-25C-DN300,900X-10C-DN65,900X-25C-DN250,
900X-40C-DN20,900X-40C-DN25,900X-40C-DN32,900X-40C-DN40,900X-40C-DN350
900X-40C-DN50,900X-40C-DN65,CCLAIR,900X-40C-DN80,900X-40C-DN100,900X-40C-DN125,
900X-40C-DN150,900X-40C-DN200,900X-40C-DN250,900X-40C-DN300,
900X-16C-DN20,900X-16C-DN25,900X-16C-DN32,900X-16C-DN40,900X-16C-DN350
900X-16C-DN50,900X-16C-DN65,900X-16C-DN80,900X-16C-DN100,
900X-16C-DN150,900X-16C-DN200,900X-16C-DN250,900X-16C-DN300,
900X-10P-DN20,900X-10P-DN25,900X-10P-DN32,900X-10P-DN40,900X-10P-DN350
900X-10P-DN50,900X-25P-DN125,900X-16P-DN125,900X-10P-DN300,
900X-10P-DN150,900X-10P-DN200,900X-10P-DN250,900X-10P-DN80,900X-10P-DN100,
900X-25P-DN20,900X-25P-DN25,900X-25P-DN32,900X-25P-DN40,900X-25P-DN350
900X-25P-DN50,900X-25P-DN65,900X-25P-DN80,900X-25P-DN100,900X-10P-DN125,
900X-25P-DN150,900X-25P-DN200,900X-25P-DN300,900X-10P-DN65,900X-25P-DN250,
900X-40P-DN20,900X-40P-DN25,900X-40P-DN32,900X-40P-DN40,900X-40P-DN350
900X-40P-DN50,900X-40P-DN65,900X-40P-DN80,900X-40P-DN100,
900X-40P-DN150,900X-40P-DN200,CCLAIR,900X-40P-DN250,900X-40P-DN300,
900X-16P-DN20,900X-16P-DN25,900X-16P-DN32,900X-16P-DN40,900X-16P-DN350,
900X-16P-DN50,900X-16P-DN65,900X-16P-DN80,900X-16P-DN100,
900X-16P-DN150,900X-16P-DN200,900X-16P-DN250,900X-16P-DN300,
