截止閥的啟閉件是塞形的閥瓣，密封面呈平面或錐面，閥瓣沿流體的中心線作直線運動。閥桿的運動形式，有升降桿式（閥桿升降，手輪不升降），也有升降旋轉桿式（手輪與閥桿一起旋轉升降，螺母設在閥體上）。截止閥只適用于全開和全關，不允許作調節和節流。
執行標準 Administer Standard
|
設計與制造 Design and Manufacture
|
結構長度
Face To Face
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法蘭尺寸
Flange Dimension
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壓力-溫度 Pressure Temperature Lating
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試驗-檢驗 Inspection And Test
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|
GB122235
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GB12221
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GB9113 JB79
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GB9131
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GB/T13927 JB/T9092
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壓力試驗 Pressure Test
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公稱壓力NominalPressure
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1.6
|
2.5
|
4.0
|
6.4
|
10.0
|
16.0
|
|
強度試驗 Shell Test
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2.4
|
3.8
|
6.0
|
9.6
|
15.0
|
24.0
|
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水密封試驗 Water Seal Test
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1.8
|
2.8
|
4.4
|
7.0
|
11.0
|
18.0
|
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上密封試驗Backseat Test
|
1.8
|
2.8
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4.4
|
7.0
|
11.0
|
18.0
|
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氣密封試驗 Air Seal Test
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0.5-0.7
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主要零件材料及性能 Main Part Materials and Property
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體、蓋、板 Body Cover Disc
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閥桿
Stem
|
密封面 Sealing Face
|
墊片
Sealing Shim
|
填料
Packing
|
工作溫度℃ Working Temperature
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適用介質Suitable Medium
|
|
|
WCB
|
2Cr13
|
13Cr
STL
木體材料
With Body
Material
尼龍
Nylon
|
增強柔性石墨
Enhanced Flexible Graphite
13Cr/柔性石墨
1Cr13/Flexible Graphite
08軟鋼
08 Soft Steal
0Cr18Ni9Ti
0Cr17Ni12Mo2Ti
XD550F(T)
PTFE
|
柔性石墨
增強柔性石墨
Flexible Graphite
Enhanced Flexible Graphite
SFB/260
SFP/260
PTFE
|
≤425
|
水
蒸汽
油品
Water
Steam
Petroleum
Ptoducts
|
|
|
WC1
|
38CrMoAl
25Cr2MoV
|
≤450
|
|
|
WC6
|
≤540
|
|
|
WC9
|
≤570
|
|
|
C5 C12
|
≤540
|
|
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ZGCr5Mo
|
≤200
|
硝酸類Nitric acid
|
|
|
ZG1Cr18Ni9Ti
|
1Cr18Ni9Ti
|
|
|
≤200
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醋酸類Acetic acid
|
|
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ZG1Cr18Ni12Mo2Ti
|
1Cr18Ni12Mo2Ti
|
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規格 主要尺寸和重量 Size Main Dimensions and Weight (mm kg)
|
1.6MPa
|
DN
|
L
|
D
|
D1
|
D2
|
b
|
n-φd
|
H
|
Do
|
重量 Weight
|
|
凸面
法蘭
RF
J41H
J41Y
J41W
J41F
J41N
16C
16P
16R
16I
|
10
|
130
|
90
|
60
|
40
|
14
|
4-14
|
198
|
120
|
4.9
|
|
15
|
130
|
95
|
65
|
45
|
14
|
4-14
|
218
|
120
|
5.3
|
|
20
|
150
|
105
|
75
|
55
|
14
|
4-14
|
258
|
140
|
7.0
|
|
25
|
160
|
115
|
85
|
65
|
14
|
4-14
|
275
|
160
|
7.4
|
|
32
|
180
|
135
|
100
|
78
|
16
|
4-18
|
280
|
180
|
8.3
|
|
40
|
200
|
145
|
110
|
85
|
16
|
4-18
|
330
|
200
|
12.6
|
|
50
|
230
|
160
|
125
|
100
|
16
|
4-18
|
350
|
240
|
14
|
|
65
|
290
|
180
|
145
|
120
|
18
|
4-18
|
400
|
280
|
22.7
|
|
80
|
310
|
195
|
160
|
135
|
20
|
8-18
|
355
|
280
|
29
|
|
100
|
350
|
215
|
180
|
155
|
20
|
8-18
|
415
|
320
|
32.8
|
|
125
|
400
|
245
|
210
|
185
|
22
|
8-18
|
460
|
360
|
79.5
|
|
150
|
480
|
280
|
240
|
210
|
24
|
8-23
|
510
|
400
|
93
|
|
200
|
600
|
335
|
295
|
265
|
26
|
12-23
|
710
|
400
|
179
|
|
250
|
622
|
405
|
355
|
320
|
30
|
12-25
|
786
|
450
|
441
|
|
300
|
698
|
460
|
410
|
375
|
30
|
12-25
|
925
|
500
|
646
|