閘閥是指關閉件(閘板)沿通路中心線的垂直方向移動的閥門。閘閥在管路中主要作切斷用。 閘閥是使用很廣的一種閥門,一般口徑DN≥50mm的切斷裝置都選用它,有時口徑很小的切斷裝置也選用閘閥,閘閥有以下優點: ①流體阻力小。 ②開閉所需外力較小。 ③介質的流向不受限制。 ④全開時,密封面受工作介質的沖蝕比截止閥小。 ⑤體形比較簡單,鑄造工藝性較好。 公稱壓力:1.6-6.4MPa 適用溫度范圍:≤200℃~≤350℃ 適用介質:硝酸類、醋酸類、水、油、氣類及某些腐蝕性液體。 | | | | | |
| 零件名稱 | ZG1Cr18Ni9Ti 304 CF8 | ZG00Cr18Ni10 304L CF3 | ZG1Cr18Ni12Mo2Ti 316 CF8M | ZG00Cr17Ni14Mo2 316L CF3M | 閥體/閥蓋 | 0Cr18Ni9 | 00Cr18Ni10 | 0Cr18Ni9Mo2 | 00Cr18Ni10Mo2 | 閘板 | 0Cr18Ni9 | 00Cr18Ni10 | 0Cr18Ni9Mo2 | 00Cr18Ni10Mo2 | 閥桿 | 0Cr18Ni9 | 00Cr18Ni10 | 0Cr18Ni9Mo2 | 00Cr18Ni10Mo2 | 閥桿螺母 | 鋁青銅 | 填料 | PTFE編織 | PTFE編織 | PTFE編織 | PTFE編織 | 墊片 | 304+PTFE | 304L+PTFE | 316+PTFE | 316L+PTFE | 壓蓋 | 0Cr18Ni9 | 00Cr18Ni10 | 0Cr18Ni9Mo2 | 00Cr18Ni10Mo2 | 螺栓 | 不銹鋼 | 螺母 | 不銹鋼 | 手輪 | 球墨鑄鐵、鑄鋼 | | |
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| 主要連接尺寸 | |
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| 型號 | 公稱通徑 | 尺寸(mm) | L | D | D1 | D2 | b-f | z-Φd | H | D0 | Z41W-1.6MPa | 15 | 130 | 95 | 65 | 45 | 14-2 | 4-14 | 170 | 120 | 20 | 150 | 105 | 75 | 55 | 14-2 | 4-14 | 200 | 120 | 25 | 160 | 115 | 85 | 65 | 14-2 | 4-14 | 215 | 140 | 32 | 180 | 135 | 100 | 78 | 16-2 | 4-18 | 260 | 160 | 40 | 200 | 145 | 110 | 85 | 16-3 | 4-18 | 290 | 200 | 50 | 250 | 160 | 125 | 100 | 16-3 | 4-18 | 345 | 220 | 65 | 265 | 180 | 145 | 120 | 18-3 | 4-18 | 360 | 240 | 80 | 280 | 195 | 160 | 135 | 20-3 | 8-18 | 385 | 280 | 100 | 300 | 215 | 180 | 155 | 20-3 | 8-18 | 430 | 300 | 125 | 325 | 245 | 210 | 185 | 22-3 | 8-18 | 520 | 320 | 150 | 350 | 280 | 240 | 210 | 24-3 | 8-23 | 610 | 350 | 200 | 400 | 335 | 295 | 265 | 26-3 | 12-23 | 765 | 400 | 250 | 450 | 405 | 355 | 320 | 30-3 | 12-25 | 895 | 450 | 300 | 500 | 460 | 410 | 375 | 30-4 | 12-25 | 1145 | 500 | 350 | 550 | 520 | 470 | 435 | 34-4 | 16-25 | 1200 | 550 | 400 | 600 | 580 | 525 | 485 | 36-4 | 16-30 | 1400 | 600 | 450 | 650 | 640 | 585 | 545 | 40-4 | 20-30 | 1500 | 650 | 500 | 700 | 705 | 650 | 608 | 44-4 | 20-34 | 1630 | 700 | 600 | 800 | 840 | 770 | 718 | 48-5 | 20-41 | 1830 | 800 | | |
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| | 型號 | 公稱通徑 | 尺寸(mm) | L | D | D1 | D2 | b-f | z-Φd | H | D0 | Z41W-2.5MPa | 15 | 130 | 95 | 65 | 45 | 16-2 | 4-14 | 170 | 120 | 20 | 150 | 105 | 75 | 55 | 16-2 | 4-14 | 200 | 120 | 25 | 160 | 115 | 85 | 65 | 16-2 | 4-14 | 215 | 140 | 32 | 180 | 135 | 100 | 78 | 18-2 | 4-18 | 260 | 160 | 40 | 200 | 145 | 110 | 85 | 18-3 | 4-18 | 290 | 200 | 50 | 250 | 160 | 125 | 100 | 20-3 | 4-18 | 345 | 220 | 65 | 265 | 180 | 145 | 120 | 22-3 | 8-18 | 360 | 240 | 80 | 280 | 195 | 160 | 135 | 22-3 | 8-18 | 385 | 280 | 100 | 300 | 230 | 190 | 160 | 24-3 | 8-23 | 430 | 300 | 125 | 325 | 270 | 220 | 188 | 28-3 | 8-25 | 520 | 320 | 150 | 350 | 300 | 250 | 218 | 30-3 | 8-25 | 610 | 350 | 200 | 400 | 360 | 310 | 278 | 34-3 | 12-25 | 765 | 400 | 250 | 450 | 425 | 370 | 332 | 36-3 | 12-30 | 900 | 450 | 300 | 500 | 485 | 430 | 390 | 40-4 | 16-30 | 1130 | 500 | 350 | 550 | 550 | 490 | 448 | 44-4 | 16-34 | 1250 | 550 | 400 | 600 | 610 | 550 | 505 | 48-4 | 16-34 | 1430 | 600 | 450 | 650 | 660 | 600 | 555 | 50-4 | 20-34 | 1520 | 650 | 500 | 700 | 730 | 660 | 610 | 52-4 | 20-41 | 1650 | 700 | 600 | 800 | 840 | 770 | 718 | 56-5 | 20-41 | 1850 | 800 | | | |
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| 型號 | 公稱通徑 | 尺寸(mm) | L | D | D1 | D2 | D6 | b-f | z-Φd | H | Z41W-4.0MPa | 15 | 130 | 95 | 65 | 45 | 40 | 16-2 | 4-14 | 170 | 20 | 150 | 105 | 75 | 55 | 51 | 16-2 | 4-14 | 200 | 25 | 160 | 115 | 85 | 65 | 58 | 16-2 | 4-14 | 215 | 32 | 180 | 135 | 100 | 78 | 66 | 18-2 | 4-18 | 260 | 40 | 200 | 145 | 110 | 85 | 76 | 18-3 | 4-18 | 290 | 50 | 250 | 160 | 125 | 100 | 88 | 20-3 | 4-18 | 345 | 65 | 280 | 180 | 145 | 120 | 110 | 22-3 | 8-18 | 360 | 80 | 310 | 195 | 160 | 135 | 121 | 22-3 | 8-18 | 385 | 100 | 350 | 230 | 190 | 160 | 150 | 24-3 | 8-23 | 430 | 125 | 400 | 270 | 220 | 188 | 176 | 28-3 | 8-25 | 530 | 150 | 450 | 300 | 250 | 218 | 204 | 30-3 | 8-25 | 620 | 200 | 550 | 375 | 320 | 282 | 260 | 38-3 | 12-30 | 780 | 250 | 650 | 445 | 385 | 345 | 313 | 42-3 | 12-34 | 900 | Z41W-6.4MPa | 15 | 170 | 105 | 75 | 55 | 41 | 18-2 | 4-14 | 175 | 20 | 190 | 125 | 90 | 68 | 51 | 20-2 | 4-18 | 200 | 25 | 210 | 135 | 100 | 78 | 58 | 22-2 | 4-18 | 215 | 32 | 230 | 150 | 110 | 82 | 66 | 24-2 | 4-23 | 270 | 40 | 240 | 165 | 125 | 95 | 76 | 24-3 | 4-23 | 300 | 50 | 250 | 175 | 135 | 105 | 88 | 26-3 | 4-23 | 370 | 65 | 280 | 200 | 160 | 130 | 110 | 28-3 | 8-23 | 385 | 80 | 310 | 210 | 170 | 140 | 121 | 30-3 | 8-23 | 400 | 100 | 350 | 250 | 200 | 168 | 150 | 32-3 | 8-25 | 460 | 125 | 400 | 295 | 240 | 202 | 176 | 36-3 | 8-30 | 570 | 150 | 450 | 340 | 280 | 240 | 204 | 38-3 | 8-34 | 660 | 200 | 550 | 405 | 345 | 300 | 260 | 44-3 | 12-34 | 820 | 250 | 650 | 470 | 400 | 352 | 313 | 48-3 | 12-41 | 1000 | | |