YK43F/X大口径气体减压阀介绍
YK43F/X大口径气体减压阀属于先导活塞式减压阀。由主阀和导阀两部分组成。主阀主要由阀座、主阀盘、活塞、弹簧等零件组成。导阀主要由阀座、阀瓣、膜片、弹簧、调节弹簧等零件组成。通过调节调节弹簧压力设定出口压力、利用膜片传感出口压力变化，通过导阀启闭驱动活塞调节主阀节流部位过流面积的大小，实现减压稳压功能。本产品主要用于气体管路，如空气、氮气、氧气、氢气、液化气、天然气等气体。
一、主要技术参数和性能指标
|
公称压力(Mpa)
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
壳体试验压力(Mpa)*
|
2.4
|
3.75
|
6.0
|
9.6
|
15.0
|
24
|
|
密封试验压力(Mpa)
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
*高进口压力(Mpa)
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
出口压力范围(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
|
|
压力特性偏差(Mpa)△P2P
|
GB12246-1989
|
|
流量特性偏差(Mpa)P2G
|
GB12246-1989
|
|
*小压差(Mpa)
|
0.15
|
0.15
|
0.2
|
0.4
|
0.8
|
1.0
|
|
渗漏量
|
X/F(聚四氟乙稀/橡胶)：O Y(硬密封)：GB12245-1989
|
*：壳体试验不包括膜片、顶盖
二、流量系数(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
|
零件名称
|
零件材料
|
|
阀体 阀盖 底盖
|
WCB/FCB*
|
|
阀座 阀盘
|
2Cr13/304*
|
|
缸套
|
2Cr13/25(镀硬铬)/304*
|
|
活塞
|
2Cr13/铜合金/铜合金*
|
|
活塞环
|
合金铸铁/对位聚苯*
|
|
导阀座 导阀杆
|
2Cr13/304*
|
|
膜片
|
1Cr18Ni9Ti
|
|
主阀 导阀弹簧
|
50CrVA
|
|
调节弹簧
|
60Si2Mn
|
|
密封垫(X/F型号)
|
橡胶/聚四氟乙稀
|
|
导阀体 导阀盖
|
25/304*
|
*：用于氧气介质时的材料
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,