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國標升降式法蘭止回閥
國標升降式法蘭止回閥
國標升降式法蘭止回閥執行標準
設計依據 GB API
設計標準 GB/T 12235 BS1868
結構長度 GB/T 12221 ASMEB16.10
連接法蘭 JB/T 79-94 ASMEB16.5
試驗和檢驗 JB/T9092 AP11598

國標升降式法蘭止回閥性能規范
部件 零件名稱
閥體 閥瓣 雙頭螺柱 六角螺母 墊片 閥蓋
Gb Wcb Wc1
Wc6 Wc9
C5 Cf8
Cf8m Cf3
Cf8c Cf3
Cf3m
35crmoa 25cr2moa
0cr18ni9
0cr17ni12mo2
45
35crmoa
25cr2moa
0cr18ni9
0gr17ni12mo2
柔性石墨
+不銹鋼
25
1cr18ni9ti
0cr18ni12mo2ti
20cr1mo1v
25cr2mov
Astm Wcb Wc1
Wc6 Wc9
C5 Cf8
Cf8mCf3
Cf8c Cf3
Cf3m
A193-b7
A320-b6
A198-b8m
A194-2h
A194-8
A198-b8m
柔性石墨
+不銹鋼
A1405 F11
F22 F5 F9
F304 F316
F321
F304lf316l


國標升降式法蘭止回閥外形尺寸
PN DN L D D1 D2 b Z-φd H
1.6Mpa 15 130 95 65 45 14 4-14 77
20 150 105 75 55 14 4-14 77
25 160 115 85 65 14 4-14 80
32 180 135 100 78 16 4-18 85
40 200 145 110 85 16 4-18 95
50 230 160 125 100 16 4-18 105
65 290 180 145 120 18 4-18 120
80 310 195 160 135 20 8-18 130
100 350 215 180 155 20 8-18 140
125 400 245 210 185 22 8-18 155
150 480 280 240 210 24 8-23 180
200 600 335 295 265 26 12-23 215
250 730 405 355 320 30 12-25 260
300 850 460 410 375 34 12-25 315
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