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點擊圖片查看原圖YK43F/X大口徑氣體減壓閥屬于先導活塞式減壓閥。由主閥和導閥兩部分組成。主閥主要由閥座、主閥盤、活塞、彈簧等零件組成。導閥主要由閥座、閥瓣、膜片、彈簧、調節(jié)彈簧等零件組成。通過調節(jié)調節(jié)彈簧壓力設定出口壓力、利用膜片傳感出口壓力變化，通過導閥啟閉驅動活塞調節(jié)主閥節(jié)流部位過流面積的大小，實現(xiàn)減壓穩(wěn)壓功能。本產(chǎn)品主要用于氣體管路，如空氣、氮氣、氧氣、氫氣、液化氣、天然氣等氣體。
一、主要技術參數(shù)和性能指標
|
公稱壓力(Mpa) |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
|
殼體試驗壓力(Mpa)* |
2.4 |
3.75 |
6.0 |
9.6 |
15.0 |
24 |
|
密封試驗壓力(Mpa) |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
|
最高進口壓力(Mpa) |
1.6 |
2.5 |
4.0 |
6.4 |
10.0 |
16.0 |
|
出口壓力范圍(Mpa) |
0.1-1.0 |
0.1-1.6 |
0.1-2.5 |
0.5-3.5 |
0.5-3.5 |
0.5-4.5 |
|
壓力特性偏差(Mpa)△P2P |
GB12246-1989 |
|||||
|
流量特性偏差(Mpa)P2G |
GB12246-1989 |
|||||
|
最小壓差(Mpa) |
0.15 |
0.15 |
0.2 |
0.4 |
0.8 |
1.0 |
|
滲漏量 |
X/F(聚四氟乙稀/橡膠)：O Y(硬密封)：GB12245-1989 |
|||||
*：殼體試驗不包括膜片、頂蓋
二、流量系數(shù)(Cv)
|
DN |
15 |
20 |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
125 |
150 |
200 |
250 |
300 |
350 |
400 |
500 |
|
Cv |
1 |
2.5 |
4 |
6.5 |
9 |
16 |
25 |
36 |
64 |
100 |
140 |
250 |
400 |
570 |
780 |
1020 |
1500 |
三、主要零件材料
|
零件名稱 |
零件材料 |
|
閥體 閥蓋 底蓋 |
WCB/FCB* |
|
閥座 閥盤 |
2Cr13/304* |
|
缸套 |
2Cr13/25(鍍硬鉻)/304* |
|
活塞 |
2Cr13/銅合金/銅合金* |
|
活塞環(huán) |
合金鑄鐵/對位聚苯* |
|
導閥座 導閥桿 |
2Cr13/304* |
|
膜片 |
1Cr18Ni9Ti |
|
主閥 導閥彈簧 |
50CrVA |
|
調節(jié)彈簧 |
60Si2Mn |
|
密封墊(X/F型號) |
橡膠/聚四氟乙稀 |
|
導閥體 導閥蓋 |
25/304* |
*：用于氧氣介質時的材料
YK43F/F-16-DN15,YK43F/F-25-DN15,YK43F/F-40-DN15,YK43F/F-64-DN15,YK43F/F-100-DN15,YK43F/F-160-DN15,
YK43F/F-16-DN20,YK43F/F-25-DN20,YK43F/F-40-DN20,YK43F/F-64-DN20,YK43F/F-100-DN20,YK43F/F-160-DN20,
YK43F/F-16-DN25,YK43F/F-25-DN25,CCLAIR,YK43F/F-40-DN25,YK43F/F-64-DN25,YK43F/F-100-DN25,YK43F/F-160-DN25,
YK43F/F-16-DN32,YK43F/F-25-DN32,YK43F/F-40-DN32,YK43F/F-64-DN32,YK43F/F-100-DN32,YK43F/F-160-DN32,
YK43F/F-16-DN40,YK43F/F-25-DN40,YK43F/F-40-DN40,YK43F/F-64-DN40,YK43F/F-100-DN40,YK43F/F-160-DN40,
YK43F/F-16-DN50,YK43F/F-25-DN50,YK43F/F-40-DN50,YK43F/F-64-DN50,YK43F/F-100-DN50,YK43F/F-160-DN50,
YK43F/F-16-DN65,YK43F/F-25-DN65,YK43F/F-40-DN65,YK43F/F-64-DN65,YK43F/F-100-DN65,YK43F/F-160-DN65,
YK43F/F-16-DN80,YK43F/F-25-DN80,YK43F/F-40-DN80,YK43F/F-64-DN80,YK43F/F-100-DN80,YK43F/F-160-DN80,
YK43F/F-16-DN100,YK43F/F-25-DN100,YK43F/F-40-DN100,YK43F/F-64-DN100,YK43F/F-100-DN100,YK43F/F-160-DN100,
YK43F/F-16-DN125,YK43F/F-25-DN125,YK43F/F-40-DN125,YK43F/F-64-DN125,YK43F/F-100-DN125,YK43F/F-160-DN125,
YK43F/F-16-DN150,YK43F/F-25-DN150,YK43F/F-40-DN150,YK43F/F-64-DN150,YK43F/F-100-DN150,YK43F/F-160-DN150,
YK43F/F-16-DN200,YK43F/F-25-DN200,YK43F/F-40-DN200,YK43F/F-64-DN200,YK43F/F-100-DN200,YK43F/F-160-DN200,
YK43F/F-16-DN250,YK43F/F-25-DN250,YK43F/F-40-DN250,YK43F/F-64-DN250,YK43F/F-100-DN250,YK43F/F-160-DN250,
YK43F/F-16-DN300,YK43F/F-25-DN300,YK43F/F-40-DN300,YK43F/F-64-DN300,YK43F/F-100-DN300,YK43F/F-160-DN300,
YK43F/F-16-DN350,YK43F/F-25-DN350,YK43F/F-40-DN350,YK43F/F-64-DN350,YK43F/F-100-DN350,YK43F/F-160-DN350,
YK43F/F-16-DN400,YK43F/F-25-DN400,CCLAIR,YK43F/F-40-DN400,YK43F/F-64-DN400,YK43F/F-100-DN400,YK43F/F-160-DN400,
YK43F/F-16-DN500,YK43F/F-25-DN500,YK43F/F-40-DN500,YK43F/F-64-DN500,YK43F/F-100-DN500,YK43F/F-160-DN500,
