美标对夹式止回阀
| |
|
| |
【美标对夹式止回阀概述】
H71H(W)美标对夹式止回阀由阀体、阀瓣、弹簧等组成，水平或垂直安装于管路系统，防止介质倒流，具有结构短、体积小、重量轻；
阀瓣关闭快速，水锤压力小；流道通畅，流体阻力小；动作灵敏，密封性能好。
【美标对夹式止回阀结构图】
【美标对夹式止回阀的型号、材料及主要参数】
|
配管法兰
|
公称压力
|
常规产品型号
|
JB/T 74
~90、
GB/T 9112
~9124、
HG 20592
~20614
|
PN1.0MPa
|
H71H-10C
|
H71W-10P
|
H71W-10P8
|
H71W-10P3
|
H71W-10R
|
H71W-10R8
|
H71W-10R3
|
|
PN1.6MPa
|
H71W-16C
|
H71W-16P
|
H71W-16P8
|
H71W-16P3
|
H71W-16R
|
H71W-16R8
|
H71W-16R3
|
|
PN2.5MPa
|
H71W-25
|
H71W-25P
|
H71W-25P8
|
H71W-25P3
|
H71W-25R
|
H71W-25R8
|
H71W-25R3
|
|
PN4.0MPa
|
H71W-40
|
H71W-40P
|
H71W-40P8
|
H71W-40P3
|
H71W-40R
|
H71W-40R8
|
H71W-40R3
|
|
PN6.3MPa
|
H71W-63
|
H71W-63P
|
H71W-63P8
|
H71W-63P3
|
H71W-63R
|
H71W-63R8
|
H71W-63R3
|
|
PN10.0MPa
|
H71W-100
|
H71W-100P
|
H71W-100P8
|
H71W-100P3
|
H71W-100R
|
H71W-100R8
|
H71W-100R3
|
|
PN16.0MPa
|
H71W-160
|
H71W-160P
|
H71W-160P8
|
H71W-160P3
|
H71W-160R
|
H71W-160R8
|
H71W-160R3
|
GB/T 9112
~9124、
HG 20615
~20635、
SH 3406
|
PN2.0MPa
|
H71H-20C
|
—
|
H71W-20P8
|
H71W-20P3
|
—
|
H71W-20R8
|
H71W-20R3
|
|
PN5.0MPa
|
H71H-50
|
—
|
H71W-50P8
|
H71W-50P3
|
—
|
H71W-50R8
|
H71W-50R3
|
|
PN11.0MPa
|
H71H-110
|
—
|
H71W-110P8
|
H71W-110P3
|
—
|
H71W-110R8
|
H71W-110R3
|
|
PN15.0MPa
|
H71H-150
|
—
|
H71W-150P8
|
H71W-150P3
|
—
|
H71W-150R8
|
H71W-150R3
|
|
ANSI B 16.5
|
Class150
|
H71H-A1C
|
—
|
H71W-A1P8
|
H71W-A1P3
|
—
|
H71W-A1R8
|
H71W-A1R3
|
|
Class300
|
H71H-A3
|
—
|
H71W-A3P8
|
H71W-A3P3
|
—
|
H71W-A3R8
|
H71W-A3R3
|
|
Class600
|
H71H-A6
|
—
|
H71W-A6P8
|
H71W-A6P3
|
—
|
H71W-A6R8
|
H71W-A6R3
|
|
Class900
|
H71H-A9
|
—
|
H71W-A9P8
|
H71W-A9P3
|
—
|
H71W-A9R8
|
H71W-A9R3
|
|
|
阀体
|
WCB(A105)
|
ZG1Cr18Ni9Ti
|
CF8(304)
|
CF3(304L)
|
ZG1Cr18Ni12Mo2Ti
|
CF8M(316)
|
CF3M(316L)
|
|
阀瓣
|
2Cr13
|
1Cr18Ni9Ti
|
0Cr18Ni9
|
00Cr19Ni10
|
1Cr18Ni12Mo2Ti
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
|
压圈
|
2Cr13
|
1Cr18Ni9Ti
|
0Cr18Ni9
|
00Cr19Ni10
|
1Cr18Ni12Mo2Ti
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
|
弹簧
|
0Cr18Ni9
|
0Cr18Ni9
|
0Cr18Ni9
|
00Cr19Ni10
|
0Cr17Ni12Mo2
|
0Cr17Ni12Mo2
|
00Cr17Ni14Mo2
|
|
|
适用介质
|
水、蒸汽、油品等
|
硝酸等腐蚀性介质
|
强氧化性介质
|
醋酸等腐蚀性介质
|
尿素等腐蚀性介质
|
|
适用温度(℃)
|
-29~425
|
-196~540
|
-196~425
|
-196~540
|
-196~455
|
|
注：本表为常规对夹式止回阀的型号编制、主要零件材料及适用工况，其他要求及其型号编制参见对夹止回阀型号编制方法。
|
【美标对夹式止回阀主要连接尺寸】
|
压力级
|
口径
|
尺寸(mm)
|
|
配管法兰(供参考)
|
|
NPS
|
DN
|
L
|
D
|
D2
|
D3
|
D4
|
|
|
螺栓直径d
|
|
|
in
|
mm
|
|
|
1/2
|
15
|
16
|
46
|
15
|
25
|
25
|
0.28
|
60.5
|
4
|
1/2
|
M14
|
75
|
|
3/4
|
20
|
19
|
56
|
19
|
30
|
30
|
0.42
|
70
|
4
|
1/2
|
M14
|
90
|
|
1
|
25
|
22
|
65
|
24
|
36
|
36
|
0.56
|
79.5
|
4
|
1/2
|
M14
|
90
|
|
11/4
|
32
|
28
|
74
|
31
|
43
|
43
|
0.75
|
89
|
4
|
1/2
|
M14
|
100
|
|
11/2
|
40
|
31.5
|
84
|
39
|
52
|
52
|
1.3
|
98.5
|
4
|
1/2
|
M14
|
105
|
|
2
|
50
|
40
|
103
|
48
|
62
|
62
|
2.1
|
120.5
|
4
|
5/8
|
M16
|
125
|
|
21/2
|
65
|
46
|
122
|
62
|
75
|
75
|
2.8
|
139.5
|
4
|
5/8
|
M16
|
130
|
|
3
|
80
|
50
|
135
|
76
|
90
|
90
|
3.6
|
152.5
|
4
|
5/8
|
M16
|
135
|
|
4
|
100
|
60
|
173
|
95
|
112
|
112
|
4.8
|
190.5
|
8
|
5/8
|
M16
|
150
|
|
5
|
125
|
90
|
195
|
110
|
125
|
132
|
12
|
216.0
|
8
|
3/4
|
M20
|
180
|
|
6
|
150
|
106
|
220
|
127
|
150
|
158
|
17
|
241.5
|
8
|
3/4
|
M20
|
210
|
|
8
|
200
|
140
|
277
|
165
|
200
|
208
|
29
|
298.5
|
8
|
3/4
|
M20
|
240
|
|
压力级
|
口径
|
尺寸(mm)
|
|
配管法兰(供参考)
|
|
NPS
|
DN
|
L
|
D
|
D2
|
D3
|
D4
|
|
|
螺栓直径d
|
|
|
in
|
mm
|
RF
|
RJ
|
|
|
1/2
|
15
|
25
|
46
|
15
|
25
|
25
|
0.28
|
60.5
|
4
|
1/2
|
M14
|
90
|
—
|
|
3/4
|
20
|
31.5
|
56
|
19
|
30
|
30
|
0.42
|
70
|
4
|
1/2
|
M14
|
100
|
—
|
|
1
|
25
|
35.5
|
65
|
24
|
36
|
36
|
0.56
|
79.5
|
4
|
1/2
|
M14
|
105
|
120
|
|
11/4
|
32
|
40
|
74
|
31
|
43
|
43
|
0.75
|
89
|
4
|
1/2
|
M14
|
115
|
130
|
|
11/2
|
40
|
45
|
84
|
39
|
52
|
52
|
1.3
|
98.5
|
4
|
1/2
|
M14
|
120
|
135
|
|
2
|
50
|
56
|
103
|
48
|
62
|
62
|
2.1
|
120.5
|
4
|
5/8
|
M16
|
140
|
155
|
|
21/2
|
65
|
63
|
122
|
62
|
75
|
75
|
2.8
|
139.5
|
4
|
5/8
|
M16
|
155
|
170
|
|
3
|
80
|
71
|
135
|
76
|
90
|
90
|
3.6
|
152.5
|
4
|
5/8
|
M16
|
165
|
180
|
|
4
|
100
|
80
|
173
|
95
|
112
|
112
|
4.8
|
190.5
|
8
|
5/8
|
M16
|
175
|
190
|
|
5
|
125
|
110
|
195
|
110
|
125
|
132
|
12
|
216.0
|
8
|
3/4
|
M20
|
210
|
225
|
|
6
|
150
|
125
|
220
|
127
|
150
|
158
|
17
|
241.5
|
8
|
3/4
|
M20
|
230
|
245
|
|
8
|
200
|
160
|
277
|
165
|
200
|
208
|
29
|
298.5
|
8
|
3/4
|
M20
|
270
|
285
|
|
|
1/2
|
15
|
25
|
52
|
15
|
25
|
25
|
0.3
|
66.5
|
4
|
1/2
|
M14
|
95
|
105
|
|
3/4
|
20
|
31.5
|
65
|
19
|
30
|
30
|
0.46
|
82.5
|
4
|
5/8
|
M16
|
110
|
125
|
|
1
|
25
|
35.5
|
72
|
24
|
36
|
36
|
0.6
|
89
|
4
|
5/8
|
M16
|
115
|
130
|
|
11/4
|
32
|
40
|
81
|
31
|
43
|
43
|
0.8
|
98.5
|
4
|
5/8
|
M16
|
125
|
140
|
|
11/2
|
40
|
45
|
94
|
39
|
52
|
52
|
1.5
|
114.5
|
4
|
3/4
|
M20
|
140
|
155
|
|
2
|
50
|
56
|
110
|
48
|
62
|
62
|
2.4
|
127.0
|
8
|
5/8
|
M16
|
145
|
170
|
【美标对夹式止回阀流体阻力系数、流量系数及开启压力】
水的当量体积流量Vw与实际流体的体积流量V按下式换算：
式中：Vw－水的当量体积流量，1/S；
ρ－流体密度，kg/m3；
V－实际流体的体积流量，1/S。
|
|
流体力学性能·H71美标对夹式止回阀的流体阻力系数
|
公称通径
|
阀门全开启
时的流体阻
力系数ξ
|
常温下阀门全开启时的水流量系数
|
流体的流向
|
|
DN
|
NPS
|
Kv(m3/h)
|
Cv(U.S)
|
Cv(U.K)
|
↑
|
↓
|
→
|
|
开启压力近似值KPa
|
|
15
|
1/2
|
6.4
|
2.6
|
3.0
|
2.5
|
3
|
2
|
25
|
|
20
|
3/4
|
5.1
|
6.4
|
7.5
|
6.3
|
3
|
2
|
2.5
|
|
25
|
1
|
4.1
|
12.6
|
14.8
|
12.3
|
3
|
2
|
2.5
|
|
32
|
11/4
|
4.1
|
19.7
|
23.1
|
19.3
|
3
|
2
|
2.5
|
|
40
|
11/2
|
3.8
|
29.5
|
34.5
|
28.9
|
3
|
2
|
2.5
|
|
50
|
2
|
3.5
|
54.6
|
63.9
|
53.5
|
3
|
2
|
2.5
|
|
65
|
21/2
|
3.5
|
85.4
|
99.9
|
83.7
|
3
|
2
|
2.5
|
|
80
|
3
|
3.2
|
128
|
150
|
125
|
3
|
2
|
2.5
|
|
100
|
4
|
2.8
|
244
|
286
|
249
|
3
|
2
|
2.5
|
|
125
|
5
|
2.9
|
375
|
439
|
368
|
3
|
1
|
2.2
|
|
150
|
6
|
3.1
|
522
|
611
|
512
|
3
|
1
|
2.2
|
|
200
|
8
|
3.2
|
915
|
1070
|
897
|
3
|
1
|
2.2
|
【美标对夹式止回阀结构特点】
1、结构长度短，其结构长度只有传统法兰止回阀的1/4~1/8
2、体积小、重量轻、其重量只有传统法兰止回阀的1/4~1/20
3、阀瓣关闭快速，水锤压力小
4、水平管道使用，安装方便
5、流道通畅、流体阻力小
6、动作灵敏、密封性能好
7、阀瓣行程短、关阀冲击力小
8、整体结构、简单紧凑、造型美观
9、使用寿命长、可靠性高
|
订货须知：
一、①美标对夹式止回阀产品名称与型号②美标对夹式止回阀口径③美标对夹式止回阀是否带附件以便我们的为您正确选型。
二、若已经由设计单位选定锐茨阀门美标对夹式止回阀型号，请按美标对夹式止回阀型号直接向我司销售部订购。
三、当使用的场合非常重要或环境比较复杂时,请您尽量提供设计图纸和详细参数，由我们的锐茨阀门专家为您审核把关。
|
美标对夹式止回阀
本实用新型涉及一种振动筛除尘阀门控制装置。振动筛除尘阀门组与电压转换继电器的输出端电连接，电压转换继电器的输入端与可编程控制器电连接，所述的振动筛除尘阀门组、电压转换继电器和可编程控制器接额定电源。它结构简单，故障率低，保证生产的连续进行。
上海锐茨阀门制造有限公司
许经理2106968147
