法蘭式真空截止閥NKJ41H
法蘭式真空截止閥NKJ41H主要�(jié)�(gòu)特點(diǎn)及用�
1、本系列閥門主體采用鑄鍛�(jié)�(gòu),具有平行雙密封副半�(qiáng)制雙向密封,密封面到位運(yùn)�(dòng)和楔形塊楔緊�(yùn)�(dòng)分步作用�(shí)�(xiàn)零泄漏�
2、密封面�(yùn)�(dòng)磨擦力小、啟閉輕便,而且密封面磨損有自動(dòng)�(bǔ)償功能�
3、結(jié)�(gòu)�(jiǎn)單、緊湊、檢修方便,使用壽命�(zhǎng)�
4、本系列閥門連接形式分法蘭、焊接兩種,�(qū)�(dòng)方式有手�(dòng)、電�(dòng)兩種�
該閥門適用于工作溫�≤425℃和≤550℃,工作介質(zhì)為水、蒸汽或空氣的管路上,作為啟閉裝置;尤其適用于火電廠汽機(jī)冷凝和真空負(fù)壓系�(tǒng),起真空隔離密封作用�
閥門�(jié)�(gòu)型式:法蘭式真空截止閥NKJ41H
法蘭式真空截止閥NKJ41H主要性能�(guī)范:
|
�(chǎn)品類�
|
殼體�(qiáng)度試�(yàn)/MPa
|
上密封試�(yàn)/MPa
|
密封試驗(yàn)/MPa
|
適用介質(zhì)
|
適用溫度/�
|
|
NKJ41H-40
|
6.O
|
4.4
|
4.4
|
水、蒸汽、空�
|
≤425
|
|
NKJ41H-64
|
96
|
7.O
|
7.O
|
|
NKJ41H-100
|
15.O
|
11.0
|
11.O
|
|
NKJ61Y-40l
|
6.O
|
4.4
|
4.4
|
水、蒸汽、空�
|
≤550
|
|
NKJ61Y-64l
|
9.6
|
7.0
|
7.O
|
|
NKJ61Y-1OOI
|
15.O
|
11.O
|
11.O
|
法蘭式真空截止閥NKJ41H主要零件材料
|
零件名稱
|
閥體、閥�
|
閥桿
|
閥瓣
|
密封�
|
閥桿螺母
|
填料
|
緊固�
|
|
NKJ41H-C�
|
25或WCB
|
鉻不銹鋼
|
鉻不銹鋼
|
H:合金鋼
|
鋁青�
|
膨脹�(fù)合石�
|
�(yōu)�(zhì)碳鋼
|
|
NKJ41H-l�
|
鉻鉬�
|
20CrlM01vA �38CrMoAlA
|
12CrlMo 1VA
|
Y:硬�(zhì)合金
|
鉻鉬�
|
法蘭式真空截止閥NKJ41H主要尺寸及重�
|
公稱通徑
DN/mm
|
公稱壓力
PN/MPa
|
主要外形尺寸和連接尺寸/mm
|
|
L
|
H
|
D
|
D0
|
D1
|
L1
|
α
|
W
|
|
1O
|
4.0
|
130
|
245
|
36
|
11
|
18.4
|
1O
|
-
|
120
|
|
15
|
130
|
245
|
36
|
16
|
22.5
|
1O
|
-
|
120
|
|
20
|
150
|
265
|
44
|
21
|
28.5
|
11
|
-
|
160
|
|
25
|
160
|
270
|
48
|
26
|
34.5
|
12
|
-
|
200
|
|
32
|
180
|
285
|
48
|
34
|
-
|
-
|
37o30'
|
200
|
|
40
|
200
|
320
|
55
|
40
|
-
|
-
|
37o30'
|
240
|
|
50
|
230
|
365
|
64
|
48
|
-
|
-
|
37o30'
|
320
|
|
65
|
290
|
41O
|
82
|
66
|
-
|
-
|
37o30'
|
300
|
|
80
|
31O
|
430
|
95
|
78
|
-
|
-
|
37o30'
|
300
|
|
100
|
350
|
470
|
117
|
1OO
|
-
|
-
|
37o30'
|
350
|
|
125
|
400
|
500
|
143
|
126
|
-
|
-
|
37o30'
|
350
|
|
150
|
480
|
533
|
167
|
150
|
-
|
-
|
37o30'
|
400
|
|
1O
|
6.4
|
130
|
245
|
36
|
1O
|
18.4
|
1O
|
-
|
120
|
|
15
|
130
|
245
|
36
|
15
|
22.5
|
1O
|
-
|
120
|
|
20
|
150
|
265
|
44
|
20
|
28.5
|
11
|
-
|
160
|
|
25
|
160
|
270
|
48
|
25
|
34.5
|
12
|
-
|
200
|
|
32
|
180
|
280
|
48
|
33
|
-
|
-
|
37o30'
|
200
|
|
40
|
200
|
320
|
55
|
39
|
-
|
-
|
37o30'
|
240
|
|
50
|
230
|
365
|
64
|
48
|
-
|
-
|
37o30'
|
320
|
|
65
|
290
|
41O
|
82
|
65
|
-
|
-
|
37o30'
|
320
|
|
80
|
31O
|
430
|
95
|
76
|
-
|
-
|
37o30'
|
360
|
|
100
|
350
|
470
|
117
|
98
|
-
|
-
|
37o30'
|
400
|
|
125
|
480
|
500
|
143
|
123
|
-
|
-
|
37o30'
|
400
|
|
150
|
480
|
533
|
167
|
148
|
-
|
-
|
37o30'
|
500
|
|
1O
|
10.O
|
130
|
245
|
36
|
1O
|
18.4
|
1O
|
-
|
120
|
|
15
|
130
|
245
|
36
|
14
|
22.5
|
1O
|
-
|
120
|
|
20
|
150
|
265
|
44
|
20
|
28.5
|
11
|
-
|
160
|
|
25
|
160
|
270
|
48
|
25
|
34.5
|
12
|
-
|
200
|
|
32
|
180
|
285
|
48
|
32
|
-
|
-
|
37o30'
|
200
|
|
40
|
200
|
320
|
55
|
38
|
-
|
-
|
37o30'
|
240
|
|
50
|
230
|
355
|
64
|
48
|
-
|
-
|
37o30'
|
320
|
|
65
|
290
|
41O
|
82
|
63
|
-
|
-
|
37o30'
|
320
|
|
80
|
31O
|
430
|
95
|
74
|
-
|
-
|
37o30'
|
360
|
|
1OO
|
350
|
470
|
117
|
97
|
-
|
-
|
37o30'
|
400
|
|
125
|
400
|
500
|
143
|
123
|
-
|
-
|
37o30'
|
400
|
|
150
|
480
|
533
|
167
|
148
|
-
|
-
|
37o30'
|
500
|
注:法蘭式真空截止閥NKJ41H允許作為PN1.0(10)、PN1.6(16)、PN2.5(25)壓力�(jí)選用