球閥的優點
1. 流體阻力小,全開時球體通道、閥體通道和連接管道的截面積相等,并且成直線相通,介質流過球閥,相當于流過一段直通的管子,在各類閥門中球閥的流體阻力最小。
2.啟閉迅速,啟閉時只需把球體轉動90°,方便而迅速。
3.結構較簡單,體積較小,重量較輕。特別是它的高度遠小于閘閥和截止閥。
4.密封性能較好。球閥一般采用具有彈性的軟質密封圈。
密封材質選擇: 選擇 | 常溫 | 增強 | 高溫 | 耐磨、高溫 | 材料代號 | F | Fs | PPL | Y.H | 適用溫度 | ≤150℃ | ≤200℃ | ≤280℃ | ≤425℃ | 主要性能規范 試驗壓力(MPa) | 公稱壓力(MPa) | 壓力級(class) | JIS(K) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 150 | 300 | 600 | 10K | 20K | 強度試驗 | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | 3.0 | 7.5 | 16.5 | 2.4 | 3.8 | 密封試驗 | 1.76 | 2.75 | 4.4 | 7.04 | 11.0 | 2.2 | 5.5 | 12.1 | 1.5 | 2.8 | 氣密試驗 | 0.4~0.7MPa | 公稱壓力 | 公稱通徑DN | 尺 寸 /mm | 重量 | 或壓力級 | mm | in | L | L1 | D | D1 | D2 | D6 | b | Z-od | H | W | /kg | PN 1.6MPa | 15 | — | 130 | 65 | 95 | 65 | 45 | — | 14 | 4-14 | 62 | 100 | 2.5 | 20 | — | 150 | 75 | 105 | 75 | 55/58 | — | 14/16 | 4-14 | 68 | 160 | 3 | 25 | — | 160 | 80 | 115 | 85 | 65/68 | — | 14/16 | 4-14 | 75 | 160 | 4.8 | 32 | — | 180 | 90 | 138/140 | 100 | 78 | — | 16 | 4-18 | 85 | 200 | 6.5 | 40 | — | 200 | 100 | 145/150 | 110 | 85/88 | — | 16 | 4-18 | 95 | 200 | 8.5 | 50 | — | 230 | 115 | 160/165 | 125 | 100/102 | — | 16/18 | 4-18 | 110 | 250 | 11 | 65 | — | 290 | 145 | 180/185 | 145 | 120/122 | — | 18 | 4-18 | 130 | 300 | 15 | 80 | — | 310 | 155 | 195/200 | 160 | 135/138 | — | 20 | 8-18 | 155 | 400 | 21 | 100 | — | 350 | 175 | 215/220 | 180 | 155/158 | — | 20 | 8-18 | 180 | 500 | 33 | 125 | — | 400 | 200 | 245/250 | 210 | 185/188 | — | 22 | 8-18 | 250 | 600 | 65 | 150 | — | 480 | 240 | 280/285 | 240 | 210/212 | — | 24/22 | 8-23/8-22 | 275 | 800 | 103 | PN 2.5MPa | 15 | — | 130 | 65 | 95 | 65 | 45 | — | 16 | 4-14 | 62 | 100 | 3 | 20 | — | 150 | 75 | 105 | 75 | 55/58 | — | 16 | 4-14 | 68 | 160 | 3.5 | 25 | — | 160 | 80 | 115 | 85 | 65/68 | — | 16 | 4-14 | 75 | 160 | 5 | 32 | — | 180 | 90 | 138/140 | 100 | 78 | — | 18 | 4-18 | 85 | 200 | 7 | 40 | —, | 200 | 100 | 145/150 | 110 | 85/88 | — | 18 | 4-18 | 95 | 200 | 9 | 50 | — | 230 | 115 | 160/165 | 125 | 100/102 | — | 20 | 4-18 | 110 | 250 | 12 | 65 | — | 290 | 145 | 180/185 | 145 | 120/122 | — | 22 | 8-18 | 130 | 300 | 17 | 80 | — | 310 | 155 | 195/200 | 160 | 135/138 | — | 22/24 | 8-18 | 155 | 400 | 22 | 100 | — | 350 | 175 | 230/235 | 190 | 160/162 | — | 24 | 8-23/8-22 | 180 | 500 | 36 | 125 | — | 400 | 200 | 270 | 220 | 188 | — | 28/26 | 8-25/8-26 | 250 | 600 | 70 | 150 | — | 480 | 240 | 300 | 250 | 218 | — | 30/28 | 8-25/8-26 | 275 | 800 | 110 | PN 4.0MPa | 15 | — | 130 | 65 | 95 | 65 | 45 | 40 | 16 | 4-14 | 62 | 100 | 3.5 | 20 | — | 150 | 75 | 105 | 75 | 55/58 | 51 | 16 | 4-14 | 68 | 160 | 4.5 | 25 | — | 160 | 80 | 115 | 85 | 65/68 | 58 | 16 | 4-14 | 75 | 160 | 6 | 32 | — | 180 | 90 | 138/140 | 100 | 78 | 66 | 18 | 4-18 | 85 | 250 | 8.5 | 40 | — | 200 | 100 | 145/150 | 110 | 85/88 | 76 | 18 | 4-18 | 95 | 250 | 10.5 | 50 | — | 230 | 115 | 160/165 | 125 | 100/102 | 88 | 20, | 4-18 | 110 | 300 | 14 | 65 | — | 290 | 145 | 180/185 | 145 | 120/122 | 110 | 22 | 8-18 | 130 | 400 | 20 | 80 | — | 310 | 155 | 195/200 | 160 | 135/138 | 121 | 22 | 8-18 | 155 | 500 | 32 | 100 | — | 350 | 175 | 230/235 | 190 | 160/162 | 150 | 24 | 8-23/8-22 | 180 | 600 | 50 | 125 | — | 400 | 200 | 270 | 220 | 188 | 176 | 28 | 8-25/8-26 | 250 | 800 | 80 | 150 | — | 480 | 240 | 300 | 250 | 218 | 204 | 30 | 8-25/8-26 | 275 | 1000 | 120 | Class 150 2.0MPa | 15 | — | 130 | 65 | 89 | 60.5 | 35 | — | — | 4-15 | 62 | 100 | 2.5 | 20 | — | 150 | 75 | 98 | 70 | 43 | — | — | 4-15 | 68 | 160 | 3 | 25 | — | 160 | 80 | 108/110 | 79.5 | 51 | — | 11.5 | 4-15/4-16 | 75 | 160 | 5, | 32 | — | 180 | 90 | 117/120 | 89 | 64 | — | 13 | 4-15/4-16 | 85 | 200 | 7 | 40 | — | 200 | 100 | 127/130 | 98.5 | 73 | — | 14.5 | 4-15/4-16 | 95 | 200 | 9 | 50 | — | 230 | 115 | 152/150 | 120.5 | 92 | — | 16 | 4-19/4-20 | 110 | 250 | 12 | 65 | — | 290 | 145 | 178/180 | 139.5 | 105 | — | 17.5 | 4-19/4-20 | 130 | 300 | 16 | 80 | — | 310 | 155 | 190 | 152.5 | 127 | — | 19.5 | 4-19/4-20 | 155 | 400 | 21 | 100 | — | 350 | 175 | 229/230 | 190.5 | 157 | — | 24 | 8-19/8-20 | 180 | 500 | 36 | 125 | — | 400 | 200 | 254/255 | 216 | 186 | — | 24 | 8-22 | 250 | 600 | 68 | 150 | — | 480 | 240 | 279/280 | 241.5 | 216 | — | 25.5 | 8-22 | 275 | 800 | 105 | JIS 10K | 15 | — | 130 | 65 | 95 | 70 | 52 | — | 12 | 4-15 | 62 | 100 | 2.5 | 20 | — | 150 | 75 | 100 | 75 | 58 | — | 14 | 4-15 | 68 | 160 | 3 | 25 | — | 160 | 80 | 125 | 90 | 70 | — | 14 | 4-19 | 75 | 160 | 5 | 32 | — | 180 | 90 | 135 | 100 | 80 | — | 16 | 4-19 | 85 | 200 | 7 | 40 | — | 200 | 100 | 140 | 105 | 85 | — | 16 | 4-19 | 95 | 200 | 9 | 50 | — | 230 | 115 | 155 | 120 | 100 | — | 16 | 4-19 | 110 | 250 | 11 | 65 | — | 290 | 145 | 175 | 140 | 120 | — | 18 | 4-19 | 130 | 300 | 16 | 80 | — | 310 | 155 | 185 | 150 | 130 | — | 18 | 8-19 | 155 | 400 | 22 | 100 | — | 350 | 175 | 210 | 175 | 155 | — | 18 | 8-19 | 180 | 500 | 36 | 125 | — | 400 | 200 | 250 | 210 | 185 | — | 20 | 8-23 | 250 | 600 | 70 | 150 | — | 480 | 240 | 280 | 240 | 215 | — | 22 | 8-23 | 275 | 800 | 105 | | |
密封材質選擇: 選擇 | 常溫 | 增強 | 高溫 | 耐磨、高溫 | 材料代號 | F | Fs | PPL | Y.H | 適用溫度 | ≤150℃ | ≤200℃ | ≤280℃ | ≤425℃ | 主要性能規范 試驗壓力(MPa) | 公稱壓力(MPa) | 壓力級(class) | JIS(K) | 1.6 | 2.5 | 4.0 | 6.4 | 10.0 | 150 | 300 | 600 | 10K | 20K | 強度試驗 | 2.4 | 3.75 | 6.0 | 9.6 | 15.0 | 3.0 | 7.5 | 16.5 | 2.4 | 3.8 | 密封試驗 | 1.76 | 2.75 | 4.4 | 7.04 | 11.0 | 2.2 | 5.5 | 12.1 | 1.5 | 2.8 | 氣密試驗 | 0.4~0.7MPa | | |
資料整理中