鍛(duan)(duan)鋼(gang)放(fang)(fang)空導淋(lin)閥一(yi)種(zhong)(zhong)(zhong)是(shi)體(ti)蓋(gai)螺栓連接(jie)(jie)鍛(duan)(duan)鋼(gang)加長端(duan)閘閥，按這(zhe)種(zhong)(zhong)(zhong)連接(jie)(jie)形式(shi)(shi)設計的(de)閥門，其(qi)閥體(ti)與閥蓋(gai)用螺栓連接(jie)(jie)，纏繞式(shi)(shi)墊片密封(feng)，優(you)點(dian)(dian)是(shi)便于維修。鍛(duan)(duan)鋼(gang)排液放(fang)(fang)空閥種(zhong)(zhong)(zhong)體(ti)蓋(gai)焊接(jie)(jie)連接(jie)(jie)鍛(duan)(duan)鋼(gang)加長端(duan)閘閥，按這(zhe)種(zhong)(zhong)(zhong)連接(jie)(jie)形式(shi)(shi)設計的(de)閥門，其(qi)閥體(ti)與閥蓋(gai)全焊密封(feng)，優(you)點(dian)(dian)是(shi)無外(wai)泄漏。鍛(duan)(duan)鋼(gang)排液放(fang)(fang)空閥第三種(zhong)(zhong)(zhong)是(shi)壓力(li)自(zi)緊式(shi)(shi)閥蓋(gai)鍛(duan)(duan)鋼(gang)加長端(duan)閘閥，按這(zhe)種(zhong)(zhong)(zhong)連接(jie)(jie)形式(shi)(shi)設計的(de)閥門，其(qi)閥體(ti)與閥蓋(gai)用螺蚊連接(jie)(jie)，內(nei)壓自(zi)密封(feng)環密封(feng)，優(you)點(dian)(dian)是(shi)內(nei)部壓力(li)越大(da)，其(qi)密封(feng)性能(neng)越好。
| 序號 | 零件名稱 | CS to ASTM | AS to ASTM | SS to ASTM | |
|---|---|---|---|---|---|
| Type A105 | Type F22 | Type F304(L) | Type F316(L) | ||
| 1 | 閥體 | A105 | A182 F22 | A182 F304(L) | A182 F316(L) |
| 2 | 閥座 | A276 420 | A276 304 | A276 304(L) | A276 316(L) |
| 3 | 閘板 | A276 410 & 430 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 4 | 閥桿 | A182 F6 | A182 F304 | A182 F304(L) | A182 F316(L) |
| 5 | 墊片 | 316夾柔性石墨 | 316夾PIFE | ||
| 6 | 閥蓋 | A105 | A182 F22 | A182 F304(L) | A182 F316(l) |
| 7 | 螺栓 | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 8 | 銷釘 | A276 420 | A276 304 | ||
| 9 | 填料壓套 | A276 410 | A182 F304(L) | A182 F316(L) | |
| 10 | 活節螺栓 | A193 B7 | A193 B16 | A193 B8 | A193 B8M |
| 11 | 填料壓板 | A105 | A182 F11 | A182 F304(L) | A182 F316(L) |
| 12 | 螺母 | A194 2H | A194 4 | A194 8 | A194 8M |
| 13 | 閥桿螺母 | A276 410 | |||
| 14 | 鎖緊螺母 | A194 2H | A194 4 | A194 8 | A194 8M |
| 15 | 銘牌 | SS | |||
| 16 | 手輪 | A197 | |||
| 17 | 潤滑墊片 | A473 431 | |||
| 18 | 填料 | Flexible Graphite | PTFE | ||
| 適用介質 | 水、蒸汽、油品等 | 水、蒸汽、油品等 | 硝酸、醋酸等 | ||
| 適用溫度 | -29℃～425℃ | -29℃～550℃ | -29℃～180℃ | ||
| 公稱通徑 Norminal diameter |
縮徑 Reduoed | port | mm(n) | 15(1/2) | 20(3/4) | 25(1) | 32(1-1/4) | 40(1-1/2) |
|---|---|---|---|---|---|---|---|---|
| 全徑 Full port |
mm(n) | 10(3/8) | 15(1/2) | 20(3/4) | 25(1) | 32(1-1/4) | ||
| d | mm | 10 | 12.7 | 18 | 23 | 28.5 | ||
| L1 | Class 150 | mm | 60 | 65 | 70 | 75 | 85 | |
| Class300 | mm | 70 | 76 | 82.5 | 89 | 95 | ||
| Class600 | mm | 82.5 | 95 | 108 | 114.5 | 120.5 | ||
| L | Class150 | mm | 150 | 157 | 179 | 200 | 213 | |
| Class300 | mm | 159 | 170 | 193 | 216 | 224 | ||
| Class600 | mm | 172 | 190 | 220 | 240 | 250 | ||
| H(開Open) | mm | 166 | 169 | 193 | 230 | 246 | ||
| W | mm | 100 | 100 | 125 | 160 | 160 | ||
