YT43H/Y-16,YT43H/Y-25,YT43H/Y-40,YT43H/Y-64,YT43H/Y-100,YT43H/Y-160,高灵敏度大流量蒸汽减压阀
产品概述
结构特点和用途
本系列减压阀属于先导式活塞减压阀。由主阀和导阀两部分组成，主阀主要由阀座、阀瓣、活塞、缸套、弹簧零件组成。导阀主要由阀座、阀瓣膜片、弹簧、调节弹簧等件组成。本产品在普通减压阀基础上作了很大改进，加大了活塞面积，改变了节流结构，改变了密封形式，加大了过流面积等等，从而在提高蒸汽管路、流量、寿命等方面大大改善了性能。本产品主要用于蒸汽管路，适用于流量变化大，进口压力变化大的蒸汽管路。
主要零件材料
|
零件名称
|
零件材料
|
|
阀体、阀盖、底盖
|
WCB
|
|
阀座、阀瓣
|
2Cr13
|
|
缸套、活塞
|
铝铁铸铜
|
|
膜片
|
1Cr18Ni9Ti
|
|
导阀座、导阀杆
|
2C13
|
|
主阀弹簧
|
50CrVA
|
|
导阀主弹簧
|
50CrVA
|
|
调节弹簧
|
60Si2Mn
|
主要技术参数
|
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
|
24.0
|
|
密封进口压力(MPa)
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
最高进口压力(MPa)
|
1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
出口压力范围(MPa)
|
0.04-1.0
|
0.05-1.6
|
0.08-2.5
|
0.2-3.5
|
0.5-3.5
|
0.5-4.5
|
|
压力特性偏差(MPa)
|
GB12246-1989
|
|
流量特性偏差(MPa)
|
GB12246-1989
|
|
最小压差(MPa)
|
0.07
|
0.1
|
0.15
|
0.3
|
0.5
|
0.8
|
|
渗漏量
|
GB12245-1989
|
*：壳体试验不包括膜片、阀盖
连接形式
法兰式：RF FM RJ 执行标准：JB79 Gb9113 ANSI B16.5
流量系数（Cv）
|
DN
|
50
|
65
|
80
|
100
|
125
|
150
|
200
|
250
|
300
|
350
|
400
|
500
|
|
Cv
|
24
|
30
|
50
|
85
|
130
|
190
|
300
|
480
|
680
|
925
|
1150
|
1900
|
外形尺寸（近似值）(PN1.6-4.0)
|
公称通径DN
|
外 形 尺 寸
|
|
L
|
H
|
H1
|
|
1.6/2.5MPa
|
4.0MPa
|
|
15
|
160
|
180
|
265
|
85
|
|
20
|
160
|
180
|
265
|
85
|
|
25
|
180
|
200
|
280
|
95
|
|
32
|
200
|
220
|
280
|
95
|
|
40
|
220
|
240
|
290
|
105
|
|
50
|
250
|
270
|
300
|
130
|
|
65
|
280
|
300
|
315
|
145
|
|
80
|
310
|
330
|
330
|
170
|
|
100
|
350
|
380
|
405
|
200
|
|
125
|
400
|
450
|
450
|
225
|
|
150
|
450
|
500
|
485
|
265
|
|
200
|
500
|
550
|
570
|
290
|
|
250
|
650
|
640
|
325
|
|
300
|
800
|
740
|
360
|
|
350
|
850
|
810
|
395
|
|
400
|
900
|
950
|
430
|
|
500
|
950
|
1080
|
500
|
外形尺寸（近似值）(PN6.4-16.0)
|
公称通径DN
|
外 形 尺 寸
|
|
L
|
H
|
H1
|
|
6.4MPa
|
10.0/16.0MPa
|
|
15
|
180
|
180
|
280
|
100
|
|
20
|
180
|
200
|
280
|
100
|
|
25
|
200
|
220
|
300
|
115
|
|
32
|
220
|
230
|
300
|
115
|
|
40
|
240
|
240
|
315
|
130
|
|
50
|
270
|
300
|
340
|
135
|
|
65
|
300
|
340
|
355
|
150
|
|
80
|
330
|
360
|
370
|
175
|
|
100
|
380
|
450
|
205
|
|
125
|
450
|
510
|
235
|
|
150
|
500
|
555
|
275
|
|
200
|
550
|
640
|
300
|
|
250
|
650
|
720
|
335
|
|
300
|
800
|
830
|
375
|
|
350
|
850
|
880
|
410
|
|
400
|
900
|
1020
|
445
|
|
500
|
950
|
1080
|
515
|
YT43H/Y-16-DN15,YT43H/Y-16-DN20,YT43H/Y-16-DN25,YT43H/Y-16-DN32,YT43H/Y-16-DN40,YT43H/Y-16-DN50
YT43H/Y-16-DN65,YT43H/Y-16-DN80,YT43H/Y-16-DN100,YT43H/Y-16-DN125,YT43H/Y-16-DN150,YT43H/Y-16-DN200,
YT43H/Y-16-DN250,YT43H/Y-16-DN300,CCLAIR,YT43H/Y-16-DN350,YT43H/Y-16-DN400,YT43H/Y-16-DN500,
YT43H/Y-25-DN15,YT43H/Y-25-DN20,YT43H/Y-25-DN25,YT43H/Y-25-DN32,YT43H/Y-25-DN40,YT43H/Y-25-DN50
YT43H/Y-25-DN65,YT43H/Y-25-DN80,YT43H/Y-25-DN100,YT43H/Y-25-DN125,YT43H/Y-25-DN150,YT43H/Y-25-DN200,
YT43H/Y-25-DN250,YT43H/Y-25-DN300,YT43H/Y-25-DN350,YT43H/Y-25-DN400,YT43H/Y-25-DN500,
YT43H/Y-40-DN15,YT43H/Y-40-DN20,YT43H/Y-40-DN25,YT43H/Y-40-DN32,YT43H/Y-40-DN40,YT43H/Y-40-DN50
YT43H/Y-40-DN65,YT43H/Y-40-DN80,YT43H/Y-40-DN100,YT43H/Y-40-DN125,YT43H/Y-40-DN150,YT43H/Y-40-DN200,
YT43H/Y-40-DN250,YT43H/Y-40-DN300,YT43H/Y-40-DN350,YT43H/Y-40-DN400,YT43H/Y-40-DN500,
YT43H/Y-64-DN15,YT43H/Y-64-DN20,YT43H/Y-64-DN25,YT43H/Y-64-DN32,YT43H/Y-64-DN40,YT43H/Y-64-DN50
YT43H/Y-64-DN65,YT43H/Y-64-DN80,YT43H/Y-64-DN100,YT43H/Y-64-DN125,YT43H/Y-64-DN150,YT43H/Y-64-DN200,
YT43H/Y-64-DN250,YT43H/Y-64-DN300,YT43H/Y-64-DN350,YT43H/Y-64-DN400,YT43H/Y-64-DN500,
YT43H/Y-100-DN15,YT43H/Y-100-DN20,YT43H/Y-100-DN25,YT43H/Y-100-DN32,YT43H/Y-100-DN40,YT43H/Y-100-DN50
YT43H/Y-100-DN65,YT43H/Y-100-DN80,YT43H/Y-100-DN100,YT43H/Y-100-DN125,YT43H/Y-100-DN150,YT43H/Y-100-DN200,
YT43H/Y-100-DN250,YT43H/Y-100-DN300,CCLAIR,YT43H/Y-100-DN350,YT43H/Y-100-DN400,YT43H/Y-100-DN500,
YT43H/Y-160-DN15,YT43H/Y-160-DN20,YT43H/Y-160-DN25,YT43H/Y-160-DN32,YT43H/Y-160-DN40,YT43H/Y-160-DN50
YT43H/Y-160-DN65,YT43H/Y-160-DN80,YT43H/Y-160-DN100,YT43H/Y-160-DN125,YT43H/Y-160-DN150,YT43H/Y-160-DN200,
YT43H/Y-160-DN250,YT43H/Y-160-DN300,YT43H/Y-160-DN350,YT43H/Y-160-DN400,YT43H/Y-160-DN500,
