埋地工況設(shè)計(jì):
用于埋地工況的閥門,設(shè)置閥門加長(zhǎng)桿、維護(hù)用加長(zhǎng)管(兩側(cè)通道排氣管+兩側(cè)閥座注脂管+閥體底部排污管)和控制閥,使閥門操作位置至于地面上方便于操作的位置。閥門表面耐腐蝕瀝青涂覆保護(hù)或環(huán)氧樹脂保護(hù)、現(xiàn)場(chǎng)管道跨接及陰極保護(hù)措施,適應(yīng)埋地使用環(huán)境。
特點(diǎn):
筒形閥體結(jié)構(gòu)制造工藝較簡(jiǎn)單,便于裝配定位,坯件制造所需模具簡(jiǎn)單,且方便采用支撐板對(duì)球體進(jìn)行固定。
筒形體組焊形式:
三體通過兩道對(duì)稱縱向焊縫組焊而成或兩體通過一道縱向焊疑組焊面成。
特點(diǎn):該結(jié)構(gòu)工藝性較好,便于閥桿部分的安裝,對(duì)于大口徑全焊接球閥尤其適合。(兩體適用于小口徑全焊接球閥,三體適用于大口徑全焊接球閥)
主要外形尺寸及重量:
PN16
|
公稱通徑DN
|
對(duì)焊連接尺寸(mm)
|
法蘭連接尺寸
|
L
|
A
|
L
|
D
|
D1
|
D2
|
b
|
f
|
k
|
f2
|
n-Φd
|
50
|
216
|
|
178
|
165
|
125
|
99
|
16
|
2
|
|
|
4-18
|
65
|
241
|
|
190
|
185
|
145
|
118
|
18
|
2
|
|
|
4-18
|
80
|
283
|
|
203
|
200
|
160
|
132
|
20
|
2
|
|
|
8-18
|
100
|
305
|
|
229
|
220
|
180
|
156
|
22
|
2
|
|
|
8-18
|
150
|
457
|
|
394
|
285
|
240
|
211
|
24
|
2
|
|
|
8-22
|
200
|
521
|
|
457
|
340
|
295
|
266
|
24
|
2
|
|
|
12-22
|
250
|
559
|
|
533
|
405
|
355
|
319
|
26
|
2
|
|
|
12-26
|
300
|
635
|
|
610
|
460
|
410
|
370
|
28
|
2
|
|
|
12-26
|
350
|
762
|
|
686
|
520
|
470
|
429
|
30
|
2
|
|
|
16-26
|
400
|
838
|
|
762
|
580
|
525
|
480
|
32
|
2
|
|
|
16-26
|
450
|
914
|
|
864
|
640
|
585
|
548
|
40
|
2
|
|
|
16-30
|
500
|
991
|
|
914
|
715
|
650
|
609
|
44
|
2
|
|
|
20-30
|
600
|
1143
|
|
1067
|
715
|
650
|
609
|
44
|
2
|
|
|
20-33
|
700
|
1346
|
|
1245
|
960
|
820
|
820
|
50
|
5
|
|
|
20-36
|
800
|
1524
|
|
1372
|
1085
|
928
|
928
|
54
|
5
|
|
|
24-36
|
900
|
1727
|
|
1524
|
1185
|
1028
|
1028
|
58
|
5
|
|
|
24-39
|
1000
|
1780
|
|
1721
|
1320
|
1140
|
1140
|
62
|
5
|
|
|
28-39
|
1200
|
2100
|
|
2032
|
1530
|
1350
|
1350
|
70
|
5
|
|
|
28-42
|
1400
|
2250
|
|
2300
|
1755
|
1560
|
1560
|
76
|
5
|
|
|
32-48
|
PN25
|
公稱通徑DN
|
對(duì)焊連接尺寸(mm)
|
法蘭連接尺寸
|
L
|
A
|
L
|
D
|
D1
|
D2
|
b
|
f
|
k
|
f2
|
n-Φd
|
so
|
216
|
|
216
|
165
|
125
|
99
|
16
|
2
|
|
|
4-18
|
65
|
241
|
|
241
|
185
|
145
|
118
|
18
|
2
|
|
|
8-18
|
80
|
283
|
|
283
|
200
|
160
|
132
|
20
|
2
|
|
|
8-18
|
100
|
305
|
|
305
|
220
|
180
|
156
|
22
|
2
|
|
|
8-23
|
150
|
457
|
|
403
|
285
|
240
|
211
|
24
|
2
|
|
|
8-25
|
200
|
521
|
|
502
|
340
|
295
|
266
|
24
|
2
|
|
|
12-25
|
250
|
559
|
|
568
|
405
|
355
|
319
|
26
|
2
|
|
|
12-30
|
300
|
635
|
|
648
|
460
|
410
|
370
|
28
|
2
|
|
|
12-30
|
350
|
762
|
|
762
|
520
|
470
|
429
|
30
|
2
|
|
|
16-33
|
400
|
838
|
|
838
|
580
|
525
|
480
|
32
|
2
|
|
|
16-36
|
450
|
914
|
|
914
|
640
|
585
|
548
|
40
|
2
|
|
|
20-36
|
500
|
991
|
|
991
|
715
|
650
|
609
|
44
|
2
|
|
|
20-36
|
600
|
1143
|
|
1143
|
715
|
650
|
609
|
44
|
2
|
|
|
20-39
|
700
|
1346
|
|
1346
|
960
|
820
|
820
|
50
|
5
|
|
|
24-42
|
800
|
1524
|
|
1524
|
1085
|
928
|
928
|
54
|
5
|
|
|
24-48
|
900
|
1727
|
|
1727
|
1185
|
1028
|
1028
|
58
|
5
|
|
|
28-48
|
1000
|
1780
|
|
2083
|
1320
|
1140
|
1140
|
62
|
5
|
|
|
28-55
|
1200
|
2100
|
|
2184
|
1530
|
1350
|
1350
|
70
|
5
|
|
|
32-55
|
1400
|
2250
|
|
2300
|
1755
|
1560
|
1560
|
76
|
5
|
|
|
36-60
|
PN40
|
公稱通徑DN
|
對(duì)焊連接尺寸(mm)
|
法蘭連接尺寸
|
L
|
A
|
L
|
D
|
D1
|
D2
|
b
|
f
|
k
|
f2
|
n-Φd
|
50
|
216
|
|
216
|
165
|
125
|
99
|
18
|
2
|
88
|
4
|
4-18
|
65
|
241
|
|
241
|
185
|
145
|
118
|
20
|
2
|
110
|
4
|
8-18
|
80
|
283
|
|
283
|
200
|
160
|
132
|
20
|
2
|
121
|
4
|
8-18
|
100
|
305
|
|
305
|
235
|
190
|
160
|
24
|
2
|
150
|
4.5
|
8-23
|
150
|
457
|
|
403
|
300
|
250
|
218
|
30
|
2
|
204
|
4.5
|
8-25
|
200
|
521
|
|
502
|
375
|
320
|
282
|
38
|
3
|
260
|
4.5
|
12-30
|
250
|
559
|
|
568
|
450
|
385
|
345
|
42
|
3
|
313
|
4 .5
|
12-34
|
300
|
635
|
|
648
|
515
|
450
|
408
|
46
|
4
|
364
|
4.5
|
12-34
|
350
|
762
|
|
762
|
570
|
510
|
465
|
52
|
4
|
422
|
5
|
16-34
|
400
|
838
|
|
838
|
660
|
585
|
535
|
58
|
4
|
474
|
5
|
16-41
|
450
|
914
|
|
914
|
685
|
610
|
560
|
60
|
4
|
524
|
5
|
20-41
|
500
|
991
|
|
991
|
755
|
670
|
612
|
62
|
4
|
576
|
5
|
20-42
|
600
|
1143
|
|
1143
|
890
|
795
|
730
|
62
|
5
|
678
|
5
|
20-48
|
700
|
1346
|
|
1346
|
995
|
900
|
835
|
68
|
5
|
768
|
5
|
24-48
|
800
|
1524
|
|
1524
|
1140
|
1030
|
960
|
76
|
5
|
876
|
5
|
24-58
|
900
|
1727
|
|
1727
|
1270
|
1168
|
1095
|
105
|
5
|
986
|
5
|
28-54
|
100
|
1780
|
|
2083
|
1238
|
1156
|
1100
|
114
|
5
|
1076
|
6
|
28-44
|
1200
|
2100
|
|
2184
|
1467
|
1372
|
1302
|
133
|
5
|
1276
|
6
|
32-51
|
1400
|
2250
|
|
2300
|
1718
|
1600
|
1518
|
152
|
5
|
1486
|
6
|
36-60
|