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- 产品名称：真空截止阀NKJ41H-4.0-DN10,NKJ41H-4.0-DN15,NKJ41H-4.0-DN20,NKJ41H-4.0-DN25,
- 产品型号：NKJ41H-4.0-DN10,NKJ41H-4.0-DN15,NKJ41H-4.0-DN20
- 产品展商：其它品牌
- 产品文档：无相关文档
简单介绍
NKJ41H-4.0-DN10,NKJ41H-4.0-DN15,NKJ41H-4.0-DN20,NKJ41H-4.0-DN25,真空截止阀
NKJ41H-4.0-DN32,NKJ41H-4.0-DN40,NKJ41H-4.0-DN50,NKJ41H-4.0-DN65,NKJ41H-4.0-DN80,NKJ41H-4.0-DN100,NKJ41H-4.0-DN125,NKJ41H-4.0-DN150,
NKJ41H-6.4-DN10,NKJ41H-6.4-DN15,NKJ41H-6.4-DN20,NKJ41H-6.4-DN25,
法兰真空隔离截止阀适用于公称压力PN4.0～10.0Mpa，工作温度≤200℃的火力电站回水冷凝系统管道上，切断或接通中的介质。适用介质为：水、蒸汽等。密封面运动磨擦力小、启闭轻便，而且密封面磨损有自动补偿功能。
产品描述
NKJ41H-4.0-DN10,NKJ41H-4.0-DN15,NKJ41H-4.0-DN20,NKJ41H-4.0-DN25,真空截止阀
NKJ41H-4.0-DN32,NKJ41H-4.0-DN40,NKJ41H-4.0-DN50,NKJ41H-4.0-DN65,NKJ41H-4.0-DN80,NKJ41H-4.0-DN100,NKJ41H-4.0-DN125,NKJ41H-4.0-DN150,
NKJ41H-6.4-DN10,NKJ41H-6.4-DN15,NKJ41H-6.4-DN20,NKJ41H-6.4-DN25,NKJ41H-6.4-DN32,NKJ41H-6.4-DN40,NKJ41H-6.4-DN50,NKJ41H-6.4-DN65,NKJ41H-6.4-DN80,
NKJ41H-6.4-DN100,NKJ41H-6.4-DN125,NKJ41H-6.4-DN150,NKJ41H-10.0-DN10,NKJ41H-10.0-DN15,NKJ41H-10.0-DN20,NKJ41H-10.0-DN25,NKJ41H-10.0-DN32,
NKJ41H-10.0-DN40,NKJ41H-10.0-DN50,NKJ41H-10.0-DN65,NKJ41H-10.0-DN80,NKJ41H-10.0-DN100,NKJ41H-10.0-DN125,NKJ41H-10.0-DN150,
一、NKJ41H真空截止阀概述：
法兰真空隔离截止阀适用于公称压力PN4.0～10.0Mpa，工作温度≤200℃的火力电站回水冷凝系统管道上，切断或接通中的介质。适用介质为：水、蒸汽等。密封面运动磨擦力小、启闭轻便，而且密封面磨损有自动补偿功能。结构简单、紧凑、检修方便，使用寿命长。阀盖填料室设有真空密封结构，具有自胀压紧作用，并且密封采用高强膨胀材料密封，使系统与大气完全隔离，具有很好的系统气密性。本系列阀门连接形式分法兰、焊接两种，驱动方式有手动、电动两种。该阀门适用于工作温度≤425℃和≤550℃，工作介质为水、蒸汽或空气的管路上，作为启闭装置；尤其适用于火电厂汽机冷凝和真空负压系统，起真空隔离密封作用。
NKJ41H真空截止阀产品结构特点：
1.产品按JB/T3595标准设计制造，满足电站设备配套使用要求。
2.设计了真空密封结构填料室，隔离真空可靠。
3.阀杆经调质及表面氮化处理，有良好的抗腐蚀性，抗擦伤和耐磨性。
4.法兰垫片采用复合材料，膨胀系数大，气密性能好，保证系统与大气隔离可靠。
5.倒密封采用不锈钢螺纹连接密封座或本体堆焊奥氏体不锈钢而成，倒密封可靠。填料更换和维修可在不停机情况下进行，方便快捷不影响系统运行。
NKJ41H真空截止阀主要零件的材料说明：
|
阀体
|
25、WCB
|
Cr5Mo
|
|
阀盖
|
25、WCB
|
Cr5Mo
|
|
支架
|
25、WCB
|
Cr5Mo
|
|
阀瓣
|
2Cr13、WCB
|
Cr5Mo
|
|
阀杆
|
2Cr13
|
38CrMoAL、25Cr2MoV
|
|
阀座
|
25、304
|
304
|
|
密封环
|
膨胀柔性石墨
|
|
填料
|
膨胀柔性石墨
|
|
阀杆螺母
|
ZCuA110Fe3
|
NKJ41H真空截止阀主要尺寸及重量：
|
公称通径
DN(mm)
|
公称压力PN(MPa)
|
主要外形及连接尺寸(mm)
|
|
L
|
H手
|
D
|
Do
|
D1
|
L1
|
α
|
W
|
|
10
|
4.0
|
130
|
245
|
36
|
11
|
18.4
|
10
|
|
120
|
|
15
|
130
|
245
|
36
|
16
|
22.5
|
10
|
|
120
|
|
20
|
150
|
265
|
44
|
21
|
28.5
|
11
|
|
160
|
|
25
|
160
|
270
|
48
|
26
|
34.5
|
12
|
|
200
|
|
32
|
180
|
285
|
48
|
34
|
|
|
37.5°
|
200
|
|
40
|
200
|
320
|
55
|
40
|
|
|
37.5°
|
240
|
|
50
|
230
|
365
|
64
|
48
|
|
|
37.5°
|
320
|
|
65
|
290
|
410
|
82
|
66
|
|
|
37.5°
|
300
|
|
80
|
310
|
430
|
95
|
78
|
|
|
37.5°
|
3000
|
|
100
|
35
|
470
|
117
|
100
|
|
|
37.5°
|
350
|
|
125
|
400
|
500
|
143
|
126
|
|
|
37.5°
|
350
|
|
150
|
480
|
533
|
167
|
150
|
|
|
37.5°
|
400
|
|
10
|
6.4
|
130
|
245
|
36
|
10
|
18.4
|
10
|
|
120
|
|
15
|
130
|
245
|
36
|
15
|
22.5
|
10
|
|
120
|
|
20
|
150
|
265
|
44
|
20
|
28.5
|
11
|
|
160
|
|
25
|
160
|
270
|
48
|
25
|
34.5
|
12
|
|
200
|
|
32
|
180
|
280
|
48
|
33
|
|
|
37.5°
|
200
|
|
40
|
200
|
320
|
55
|
39
|
|
|
37.5°
|
240
|
|
50
|
230
|
365
|
64
|
48
|
|
|
37.5°
|
320
|
|
65
|
290
|
410
|
82
|
65
|
|
|
37.5°
|
320
|
|
80
|
310
|
430
|
95
|
76
|
|
|
37.5°
|
360
|
|
100
|
350
|
470
|
117
|
98
|
|
|
37.5°
|
400
|
|
125
|
480
|
500
|
143
|
123
|
|
|
37.5°
|
400
|
|
150
|
480
|
533
|
167
|
148
|
|
|
37.5°
|
500
|
|
10
|
10.0
|
130
|
245
|
36
|
10
|
18.4
|
10
|
|
120
|
|
15
|
130
|
245
|
36
|
14
|
22.5
|
10
|
|
120
|
|
20
|
150
|
265
|
44
|
20
|
28.5
|
11
|
|
160
|
|
25
|
160
|
270
|
48
|
25
|
34.5
|
12
|
|
200
|
|
32
|
180
|
285
|
48
|
32
|
|
|
37.5°
|
200
|
|
40
|
200
|
320
|
55
|
38
|
|
|
37.5°
|
240
|
|
50
|
230
|
355
|
64
|
48
|
|
|
37.5°
|
320
|
|
65
|
290
|
410
|
82
|
63
|
|
|
37.5°
|
320
|
|
80
|
310
|
430
|
95
|
74
|
|
|
37.5°
|
360
|
|
100
|
350
|
470
|
117
|
97
|
|
|
37.5°
|
400
|
|
125
|
400
|
500
|
143
|
123
|
|
|
37.5°
|
400
|
|
150
|
480
|
533
|
167
|
148
|
|
|
37.5°
|
500
|