双作用活塞封
K780
| 工作条件 | 公制 | 英制 |
| 最大速度 | 0.5 m/sec | 4.5 ft/sec |
| 温度范围 | -30℃~+100℃ | -22℉~+212℉ |
| 最大压力 | 400 bar | 6000 p.s.i. |
| 表面粗糙度 | μmRa | μmRt | μinClA | μinRMS |
| 动密封面Φd1 | 0.1<>0.4 | 4 max | 4<>16 | 5<>18 |
| 静密封面ΦD1 | 1.6 max | 10 max | 63 max | 70 max |
| 静态沟槽面L1 | 3.2 max | 16 max | 125 max | 140 max |
| 倒角和半径 | ||||||
| 沟槽截面≤ S mm | 5.0 | 7.5 | 8.0 | 10.0 | 12.5 | 15.0 |
| 最小倒角 C mm | 2.4 | 4.0 | 5.0 | 5.0 | 6.5 | 7.5 |
| 最大圆角半径 r1 mm | 0.4 | 0.4 | 0.4 | 0.4 | 0.8 | 0.8 |
| 最大圆角半径 r2 mm | 0.4 | 0.4 | 0.4 | 0.4 | 0.8 | 0.8 |
| 公差 | ΦD1 | Φd1 | Φd2 | Φd3 | L1 | L2 |
| H9 | h9 | h9 | h11 | +0.2 -0 | +0.1 -0 |
材料介绍
Kintowe K780 双作用组合密封圈是适用于单活塞的紧凑型双作用密封圈，该橡胶单元有很好的抗磨损能力，适用于广泛的中载工况条件应用，该密封设计同样也适用于双活塞。
该组合密封圈由一个橡胶密封件，两个开口保护挡圈和两个开口 “L” 型导向环组成，并对称的分置于橡胶密封单元两侧。
丁腈橡胶密封单元设计成锯齿形多唇密封，其具有极佳的动密封性能和极低的摩檫力。当压力升高时，两个开口保护挡圈上的凸起部分能有效防挤出损害。导向环由坚固但具有塑性的聚合物制成，环上带有切口，易于安装。
两个 “L” 形的导向表面环开有匀压槽，可以将压力平稳的传递给橡胶密封件，并能有效的防止密封圈在装配时可能产生的 “ 困压 ” 现象。
产品优势
●挡圈、耐磨环斜开口设计，易于安装
●抗挤出能力强，坚固耐用
●对油缸的加工精度要求不高
技术参数
| ФD1 | Фd1 | Фd2 | Фd3 | L1 | L2 | PART No. |
| 20 | 11 | 17.00 | 19.0 | 13.5 | 2.10 | K7800200 |
| 25 | 15 | 21.00 | 24.0 | 12.0 | 4.00 | K7800250 |
| 25 | 16 | 22.00 | 24.0 | 13.5 | 2.10 | K7800251 |
| 30 | 17 | 27.00 | 29.0 | 15.4 | 6.35 | K7800300 |
| 30 | 21 | 27.00 | 29.0 | 15.4 | 6.35 | K7800301 |
| 32 | 22 | 28.00 | 31.0 | 15.5 | 2.60 | K7800320 |
| 32 | 22 | 28.50 | 30.5 | 16.4 | 6.35 | K7800321 |
| 35 | 25 | 31.00 | 34.0 | 15.5 | 2.60 | K7800350 |
| 35 | 25 | 31.40 | 33.5 | 16.4 | 6.35 | K7800351 |
| 40 | 24 | 35.40 | 38.5 | 18.4 | 6.35 | K7800400 |
| 40 | 30 | 37.00 | 39.0 | 12.5 | 4.00 | K7800401 |
| 40 | 30 | 35.40 | 38.5 | 16.4 | 6.35 | K7800402 |
| 45 | 29 | 40.40 | 43.5 | 18.4 | 6.35 | K7800450 |
| 45 | 31 | 41.00 | 44.0 | 15.5 | 2.60 | K7800451 |
| 45 | 35 | 40.40 | 43.5 | 16.4 | 6.35 | K7800452 |
| 50 | 34 | 45.40 | 48.5 | 18.4 | 6.35 | K7800500 |
| 50 | 34 | 46.00 | 49.0 | 20.5 | 3.10 | K7800501 |
| 50 | 38 | 46.00 | 49.4 | 20.5 | 4.20 | K7800502 |
| 50 | 40 | 47.00 | 49.0 | 12.5 | 4.00 | K7800503 |
| 55 | 39 | 50.36 | 53.5 | 18.4 | 6.35 | K7800550 |
| 55 | 39 | 51.00 | 54.0 | 20.5 | 3.10 | K7800551 |
| 60 | 44 | 55.40 | 58.5 | 18.4 | 6.35 | K7800600 |
| 60 | 44 | 56.00 | 59.0 | 20.5 | 3.10 | K7800601 |
| 60 | 48 | 56.00 | 59.4 | 20.5 | 4.20 | K7800602 |
| 63 | 47 | 58.40 | 61.5 | 18.4 | 6.35 | K7800630 |
| ФD1 | Фd1 | Фd2 | Фd3 | L1 | L2 | PART No. |
| 63 | 47 | 58.40 | 61.5 | 19.4 | 6.35 | K7800631 |
| 63 | 51 | 59.00 | 62.4 | 20.5 | 4.20 | K7800632 |
| 65 | 49 | 61.00 | 64.0 | 20.5 | 3.10 | K7800650 |
| 65 | 50 | 60.40 | 63.5 | 18.4 | 6.35 | K7800651 |
| 70 | 50 | 64.20 | 68.3 | 22.4 | 6.35 | K7800700 |
| 70 | 54 | 66.00 | 69.0 | 20.5 | 3.10 | K7800701 |
| 70 | 58 | 66.00 | 69.4 | 20.5 | 3.10 | K7800702 |
| 75 | 55 | 69.20 | 73.3 | 22.4 | 6.35 | K7800750 |
| 75 | 59 | 71.00 | 74.0 | 20.5 | 3.10 | K7800751 |
| 80 | 60 | 74.15 | 78.3 | 22.4 | 6.35 | K7800800 |
| 80 | 62 | 76.00 | 79.0 | 22.5 | 3.60 | K7800801 |
| 80 | 66 | 76.00 | 79.4 | 22.5 | 5.20 | K7800802 |
| 85 | 65 | 79.15 | 83.3 | 22.4 | 6.35 | K7800850 |
| 90 | 70 | 84.15 | 83.3 | 22.4 | 6.35 | K7800900 |
| 90 | 76 | 86.00 | 89.4 | 22.5 | 5.20 | K7800901 |
| 95 | 75 | 89.15 | 93.3 | 22.4 | 6.35 | K7800950 |
| 100 | 75 | 93.15 | 98.0 | 22.4 | 6.35 | K7801000 |
| 100 | 80 | 95.00 | 98.0 | 25.0 | 6.30 | K7801001 |
| 100 | 82 | 96.00 | 99.0 | 22.5 | 3.60 | K7801002 |
| 100 | 85 | 96.00 | 98.5 | 20.0 | 5.00 | K7801003 |
| 100 | 86 | 96.00 | 99.4 | 22.5 | 5.20 | K7801004 |
| 105 | 80 | 98.10 | 103.0 | 22.4 | 6.35 | K7801050 |
| 110 | 85 | 103.10 | 108.0 | 22.4 | 6.35 | K7801100 |
| 115 | 90 | 108.10 | 113.0 | 22.4 | 6.35 | K7801150 |
| 120 | 95 | 113.10 | 118.0 | 22.4 | 6.35 | K7801200 |
| ФD1 | Фd1 | Фd2 | Фd3 | L1 | L2 | PART No. |
| 125 | 100 | 118.10 | 123.0 | 25.4 | 6.35 | K7801250 |
| 125 | 105 | 120.00 | 123.0 | 25.0 | 6.30 | K7801251 |
| 130 | 105 | 123.10 | 128.0 | 25.4 | 9.50 | K7801300 |
| 135 | 110 | 127.60 | 133.0 | 25.4 | 9.50 | K7801350 |
| 140 | 115 | 133.00 | 138.0 | 25.4 | 6.35 | K7801400 |
| 140 | 115 | 132.60 | 138.0 | 25.4 | 9.50 | K7801401 |
| 145 | 120 | 137.60 | 143.0 | 25.4 | 9.50 | K7801450 |
| 150 | 125 | 142.60 | 148.0 | 25.4 | 9.50 | K7801500 |
| 155 | 130 | 147.60 | 153.0 | 25.4 | 9.50 | K7801550 |
| 160 | 130 | 153.00 | 158.0 | 25.4 | 9.50 | K7801600 |
| 160 | 135 | 152.60 | 158.0 | 25.4 | 9.50 | K7801601 |
| 165 | 140 | 157.60 | 163.0 | 25.4 | 9.50 | K7801650 |
| 170 | 145 | 161.70 | 168.0 | 25.4 | 12.70 | K7801700 |
| 175 | 150 | 166.70 | 173.0 | 25.4 | 12.70 | K7801750 |
| 180 | 150 | 172.95 | 178.0 | 35.4 | 6.35 | K7801800 |
| 180 | 155 | 171.70 | 178.0 | 25.4 | 12.70 | K7801801 |
| 185 | 160 | 176.70 | 183.0 | 25.4 | 12.70 | K7801850 |
| 190 | 165 | 181.70 | 188.0 | 25.4 | 12.70 | K7801900 |
| 195 | 170 | 186.70 | 193.0 | 25.4 | 12.70 | K7801950 |
| 200 | 175 | 191.60 | 198.0 | 25.4 | 12.70 | K7802000 |
| 230 | 205 | 221.60 | 227.0 | 25.4 | 12.70 | K7802300 |
| 250 | 225 | 241.60 | 247.0 | 25.4 | 12.70 | K7802500 |