鍛鋼閘閥有三種閥蓋設(shè)計(jì)，****種是螺栓型閥蓋，通過凹凸面連接，采用不銹鋼帶與柔性石墨纏繞墊片，按需求也可采用環(huán)連接，第二種是焊接型閥蓋，通過螺紋密封后焊接，按需求也可直接采用剛性焊接，第三種是自密封閥蓋，通過螺紋與自密封閥蓋連接。
閘閥的結(jié)構(gòu)設(shè)計(jì)與規(guī)范：
鍛鋼閘閥制造按API 602,BS5352,ANSI B16.34.
試驗(yàn)與驗(yàn)收按API 598,標(biāo)識(shí)按照MSS SP-25.
試驗(yàn)與驗(yàn)收按API 598,標(biāo)識(shí)按照MSS SP-25.
結(jié)構(gòu)型式如下：
1.全通徑或縮徑；
2.明桿帶支架；
3.兩端自動(dòng)調(diào)心的填料壓套；
4.用纏繞式墊片的螺栓型閥蓋、螺紋密封焊接型閥蓋，或自密封閥蓋
5.本體倒密封；
6.承插焊接ANSI/ASME B16.11;
7.螺紋端(NPT端)按ANSI/ASME B
材料表：
序號(hào)
NO. |
名 稱
|
美標(biāo)碳鋼
CS to ASTM |
美標(biāo)合金鋼
AS to ASTM |
美標(biāo)不銹鋼鋼
SS to ASTM |
||
Part Name
|
Type A 105
|
Type F22
|
Type F304(L)
|
Type F316(L)
|
||
1
|
閥體
|
Body
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
2
|
閥座
|
Seat Ring
|
A276 420
|
A276 304
|
A276 F304(L)
|
A276 F316(L)
|
3
|
閘板
|
Wedge
|
A276 430&410
|
A182 F304
|
A182 F304(L)
|
A182 F316(L)
|
4
|
閥桿
|
Stem
|
A182 F6
|
A182 F304
|
A182 F304(L)
|
A182 F316(L)
|
5
|
墊片
|
Gasket
|
Corrugated SS+graphite
|
SS+PTFE
|
||
6
|
閥蓋
|
Bonnet
|
A105
|
A182 F22
|
A182 F304(L)
|
A182 F316(L)
|
7
|
螺栓
|
Bonnet Bolt
|
A193 B7
|
A193 B16
|
A193 B8
|
A193 B8M
|
8
|
銷
|
Pin
|
A276 420
|
A276 F304
|
||
9
|
填料壓套
|
Gland
|
A276 410
|
A182 F304(L)
|
A182 F316(L)
|
|
10
|
活節(jié)螺絲
|
Gland Eyebolt
|
A193 B7
|
A193 B16
|
A193 B8
|
A193 B8M
|
11
|
填料壓蓋
|
Gland Flange
|
A105
|
A182 F11
|
A182 F304(L)
|
A182 F316(L)
|
12
|
螺母
|
Gland Nut
|
A194 2H
|
A 194 4
|
A194 8
|
A194 8M
|
13
|
閥桿螺母
|
Stem Nut
|
A276 420/Cu-Alloy(銅合金)
|
|||
14
|
手輪鎖緊螺母
|
H.W.Lock Nut
|
A 194 2H
|
A194 4
|
A 194 8
|
A194 8M
|
15
|
銘牌
|
Nameplate
|
SS
|
|||
16
|
手輪
|
Handwheel
|
A197
|
|||
17
|
襯墊
|
Bearing Gasket
|
A473 431
|
|||
18
|
填料
|
Stem Packing
|
Flexible Graphite
|
PTFE
|
||
適用介質(zhì) Suitable Medium
|
(水、油、氣等)W.O.G.etc
|
(酸類)HNO3,CH3OOH etc
|
||||
適用溫度 Suitable Temperature
|
-29℃～425℃
|
-29℃～550℃
|
-29℃～180℃
|
|||
注：可按要求采用其他材料 Note:Other materials are available upon request.
CS=碳鋼 AS=合金鋼 SS=不銹鋼 CS=Carbon Steel;AS=Alloy Steel;SS=Stainless Steel;
尺寸和重量表 Dimensions(mm)and Weights(Kg)
通徑
|
縮徑RB
|
3/8
|
1/2
|
3/4
|
1
|
1 1/4
|
1 1/2
|
2
|
||
NPS
|
全徑FB
|
3/8
|
1/2
|
3/4
|
1
|
1 1/4
|
1 1/2
|
2
|
||
L
|
150～800Lb
|
79
|
79
|
92
|
111
|
120
|
120
|
140
|
178
|
|
900Lb
|
79
|
92
|
111
|
120
|
120
|
140
|
178
|
210
|
||
1500Lb
|
111
|
111
|
111
|
114
|
120
|
140
|
162
|
210
|
||
H(OPEN)
|
150～800Lb
|
158
|
158
|
169
|
197
|
236
|
246
|
283
|
330
|
|
900～1500Lb
|
169
|
197
|
197
|
236
|
246
|
283
|
330
|
354
|
||
W
|
150～800Lb
|
100
|
100
|
100
|
125
|
160
|
160
|
180
|
200
|
|
900～1500Lb
|
100
|
125
|
125
|
160
|
160
|
180
|
200
|
240
|
||
Weights
|
Bolted
|
150～800Lb
|
2.1
|
2.0
|
2.3
|
4.3
|
5.9
|
6.9
|
11.1
|
15.2
|
900～1500Lb
|
2.5
|
4.3
|
4.2
|
6.6
|
8.8
|
12.5
|
17.2
|
23.5
|
||
Welded
|
150～800Lb
|
1.8
|
1.7
|
2.0
|
3.8
|
5.1
|
6.1
|
10.2
|
14.2
|
|
900～1500Lb
|
2.4
|
4.2
|
4.0
|
6.3
|
8.7
|
12.1
|
17.2
|
22
|
||
