角式襯氟截止閥、具有結(jié)構(gòu)緊湊、啟閉靈活、耐腐蝕性能強(qiáng)，行程短（一般為公稱通經(jīng)1/4）等優(yōu)點(diǎn)。被廣泛應(yīng)用在石油、化工等管路系統(tǒng)中做截?cái)嘟橘|(zhì)用，但塑料襯里的截止閥嚴(yán)禁用做流量調(diào)節(jié)，以免節(jié)流口處產(chǎn)生的高速介質(zhì)流沖蝕破壞密封面。閥瓣與閥桿設(shè)計(jì)為一體結(jié)構(gòu)，用以防止由于管路壓力波動(dòng)造成內(nèi)件沖出閥體的可能性，結(jié)構(gòu)緊湊，使用安全。
設(shè)計(jì)規(guī)范遵循GB/T 12233，GB/T12235，ANSI B 16.34標(biāo)準(zhǔn)
驅(qū)動(dòng)方式手動(dòng)、蝸輪轉(zhuǎn)動(dòng)、氣動(dòng)(常開或常閉)、電動(dòng)
主要零部件材料表
|
序號(hào)
|
零件名稱
|
灰鑄鐵
|
鑄鋼
|
不銹耐酸鑄鋼
|
超低碳不銹耐酸鑄鋼
|
|
Z
|
C
|
P
|
R
|
PL
|
RL
|
|
1
|
閥體/閥蓋
|
HT250
|
WCB
|
CF8
|
CF8M
|
CF3
|
CF3M
|
|
2
|
球體/閥桿
|
25
|
2Cr13
|
1Cr18Ni9
|
1Cr18Ni12Mo2Ti
|
00Cr18Ni10
|
00Cr17Ni14Mo2
|
|
3
|
襯里/閥座
|
PCTEF(F3),FEP(F46),PFA(可溶F4),PP,PO
|
|
4
|
填料壓蓋
|
WCB
|
CF8
|
CF8M
|
CF3
|
CF3M
|
|
5
|
填料
|
PTFE(F4)
|
PTFE(F4)
|
PTFE(F4)
|
|
6
|
活節(jié)螺栓
|
35
|
1Cr17Ni2
|
1Cr17Ni2
|
|
7
|
閥桿螺母
|
ZCuAl10Fe3
|
ZCuAl10Fe3
|
ZCuAl10Fe3
|
|
8
|
緊固螺栓
|
35
|
1Cr17Ni2
|
1Cr18Ni9Ti
|
|
9
|
螺母
|
45
|
0Cr18Ni9
|
0Cr18Ni9
|
|
10
|
手柄
|
WCB
|
WCB
|
WCB
|
主要外形和連接尺寸
|
公稱通經(jīng)
|
L
|
D
|
D1
|
D2
|
f
|
b
|
Z-φd
|
|
DN(mm)
|
NPS(inch)
|
PN1.0MPa
|
|
15
|
1/2
|
90
|
95
|
65
|
45
|
2
|
14
|
4-φ14
|
|
20
|
3/4
|
95
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
100
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
11/4
|
105
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
11/2
|
115
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
125
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
|
65
|
21/2
|
145
|
180
|
145
|
120
|
3
|
20
|
4-φ18
|
|
80
|
3
|
155
|
195
|
160
|
135
|
3
|
22
|
4-φ18
|
|
100
|
4
|
175
|
215
|
180
|
155
|
3
|
22
|
8-φ18
|
|
125
|
5
|
200
|
245
|
210
|
185
|
3
|
24
|
8-φ18
|
|
150
|
6
|
225
|
280
|
240
|
210
|
3
|
24
|
8-φ23
|
|
200
|
8
|
275
|
335
|
295
|
265
|
3
|
26
|
8-φ23
|
|
250
|
10
|
325
|
390
|
350
|
320
|
3
|
28
|
12-φ23
|
|
300
|
12
|
375
|
440
|
400
|
368
|
4
|
28
|
12-φ23
|
|
PN1.6MPa
|
|
15
|
1/2
|
90
|
95
|
65
|
45
|
2
|
14
|
4-φ14
|
|
20
|
3/4
|
95
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
100
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
11/4
|
105
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
11/2
|
115
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
125
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
|
65
|
21/2
|
145
|
180
|
145
|
120
|
3
|
20
|
4-φ18
|
|
80
|
3
|
155
|
195
|
160
|
135
|
3
|
22
|
8-φ18
|
|
100
|
4
|
175
|
215
|
180
|
155
|
3
|
24
|
8-φ18
|
|
125
|
5
|
200
|
245
|
210
|
185
|
3
|
26
|
8-φ18
|
|
150
|
6
|
225
|
280
|
240
|
210
|
3
|
28
|
8-φ23
|
|
200
|
8
|
275
|
335
|
295
|
265
|
3
|
30
|
8-φ23
|
|
PN2.5MPa
|
|
15
|
1/2
|
90
|
95
|
65
|
45
|
2
|
16
|
4-φ14
|
|
20
|
3/4
|
95
|
105
|
75
|
55
|
2
|
16
|
4-φ14
|
|
25
|
1
|
100
|
115
|
85
|
65
|
2
|
16
|
4-φ14
|
|
32
|
11/4
|
105
|
135
|
100
|
78
|
2
|
18
|
4-φ18
|
|
40
|
11/2
|
115
|
145
|
110
|
85
|
3
|
18
|
4-φ18
|
|
50
|
2
|
125
|
160
|
125
|
100
|
3
|
20
|
4-φ18
|
