技术资源
O 型圈尺寸对照表
AS-568A 与 ISO 3601-1 尺寸数据,免注册、可检索。标准规格无法匹配沟槽时,我们按您的图纸模制。
AS-568A
| Dash 号 | 内径 in | 内径 mm | 线径 in | 线径 mm | ISO 3601 |
|---|---|---|---|---|---|
| -001 | 0.070 | 1.78 | 0.013 | 0.33 | 3 |
| -002 | 0.110 | 2.79 | 0.021 | 0.53 | 4 |
| -003 | 0.130 | 3.30 | 0.025 | 0.64 | 5 |
| -004 | 0.150 | 3.81 | 0.026 | 0.65 | 6 |
| -005 | 0.170 | 4.32 | 0.026 | 0.65 | 7 |
| -006 | 0.180 | 4.57 | 0.028 | 0.71 | 8 |
| -007 | 0.195 | 4.95 | 0.028 | 0.71 | 9 |
| -008 | 0.220 | 5.59 | 0.028 | 0.71 | 10 |
| -009 | 0.234 | 5.94 | 0.033 | 0.84 | 11 |
| -010 | 0.255 | 6.48 | 0.033 | 0.84 | 12 |
| -011 | 0.275 | 6.99 | 0.033 | 0.84 | 13 |
| -012 | 0.295 | 7.49 | 0.037 | 0.94 | 14 |
| -013 | 0.315 | 8.00 | 0.037 | 0.94 | 15 |
| -014 | 0.335 | 8.51 | 0.037 | 0.94 | 16 |
| -015 | 0.355 | 9.02 | 0.037 | 0.94 | 17 |
| -016 | 0.375 | 9.53 | 0.037 | 0.94 | 18 |
| -017 | 0.395 | 10.03 | 0.037 | 0.94 | 19 |
| -018 | 0.425 | 10.80 | 0.050 | 1.27 | 20 |
| -019 | 0.445 | 11.30 | 0.050 | 1.27 | 21 |
| -020 | 0.475 | 12.07 | 0.050 | 1.27 | 22 |
| -021 | 0.495 | 12.57 | 0.050 | 1.27 | 23 |
| -022 | 0.520 | 13.21 | 0.050 | 1.27 | 24 |
| -023 | 0.545 | 13.84 | 0.050 | 1.27 | 25 |
| -024 | 0.575 | 14.61 | 0.050 | 1.27 | 26 |
| -025 | 0.595 | 15.11 | 0.050 | 1.27 | 27 |
| -026 | 0.620 | 15.75 | 0.050 | 1.27 | 28 |
| -027 | 0.675 | 17.15 | 0.062 | 1.57 | 29 |
| -028 | 0.700 | 17.78 | 0.062 | 1.57 | 30 |
| -029 | 0.735 | 18.67 | 0.062 | 1.57 | 31 |
| -030 | 0.765 | 19.43 | 0.062 | 1.57 | 32 |
| -031 | 0.795 | 20.19 | 0.062 | 1.57 | 33 |
| -032 | 0.830 | 21.08 | 0.062 | 1.57 | 34 |
| -033 | 0.860 | 21.84 | 0.062 | 1.57 | 35 |
| -034 | 0.890 | 22.61 | 0.062 | 1.57 | 36 |
| -035 | 0.920 | 23.37 | 0.062 | 1.57 | 37 |
| -036 | 0.940 | 23.87 | 0.062 | 1.57 | 38 |
| -037 | 0.970 | 24.64 | 0.062 | 1.57 | 39 |
| -038 | 1.000 | 25.40 | 0.062 | 1.57 | 40 |
| -039 | 1.030 | 26.16 | 0.062 | 1.57 | 41 |
| -040 | 1.060 | 26.92 | 0.062 | 1.57 | 42 |
| -041 | 1.110 | 28.83 | 0.062 | 1.57 | 43 |
| -042 | 1.140 | 28.96 | 0.062 | 1.57 | 44 |
| -043 | 1.170 | 29.72 | 0.062 | 1.57 | 45 |
| -044 | 1.200 | 30.48 | 0.062 | 1.57 | 46 |
| -045 | 1.230 | 31.24 | 0.062 | 1.57 | 47 |
| -046 | 1.260 | 32.00 | 0.062 | 1.57 | 48 |
| -047 | 1.290 | 32.77 | 0.062 | 1.57 | 49 |
| -048 | 1.320 | 33.53 | 0.062 | 1.57 | 50 |
| -049 | 1.350 | 34.29 | 0.062 | 1.57 | 51 |
| -050 | 1.380 | 35.05 | 0.062 | 1.57 | 52 |
ISO 3601-1
| 编号 | 内径 mm | 线径 mm |
|---|---|---|
| 3 | 1.8 | 0.33 |
| 4 | 2.8 | 0.53 |
| 5 | 3.3 | 0.64 |
| 6 | 3.8 | 0.65 |
| 7 | 4.3 | 0.65 |
| 8 | 4.6 | 0.71 |
| 9 | 5.0 | 0.71 |
| 10 | 5.6 | 0.71 |
| 11 | 5.9 | 0.84 |
| 12 | 6.5 | 0.84 |
| 13 | 7.0 | 0.84 |
| 14 | 7.5 | 0.94 |
| 15 | 8.0 | 0.94 |
| 16 | 8.5 | 0.94 |
| 17 | 9.0 | 0.94 |
| 18 | 9.5 | 0.94 |
| 19 | 10.0 | 0.94 |
| 20 | 10.8 | 1.27 |
| 21 | 11.3 | 1.27 |
| 22 | 12.1 | 1.27 |
| 23 | 12.6 | 1.27 |
| 24 | 13.2 | 1.27 |
| 25 | 13.8 | 1.27 |
| 26 | 14.6 | 1.27 |
| 27 | 15.7 | 1.27 |
| 28 | 15.9 | 1.27 |
| 29 | 17.2 | 1.57 |
| 30 | 17.8 | 1.57 |
| 31 | 18.7 | 1.57 |
| 32 | 19.4 | 1.57 |
| 33 | 20.2 | 1.57 |
| 34 | 21.1 | 1.57 |
| 35 | 21.8 | 1.57 |
| 36 | 22.6 | 1.57 |
| 37 | 23.4 | 1.57 |
| 38 | 23.9 | 1.57 |
| 39 | 24.6 | 1.57 |
| 40 | 25.4 | 1.57 |
| 41 | 26.2 | 1.57 |
| 42 | 26.9 | 1.57 |
| 43 | 28.8 | 1.57 |
| 44 | 29.0 | 1.57 |
| 45 | 29.7 | 1.57 |
| 46 | 30.5 | 1.57 |
| 47 | 31.2 | 1.57 |
| 48 | 32.0 | 1.57 |
| 49 | 32.8 | 1.57 |
| 50 | 33.5 | 1.57 |
| 51 | 34.3 | 1.57 |
| 52 | 35.0 | 1.57 |
Dimensions follow AS-568A and ISO 3601-1. FFKM is a high-modulus elastomer, so gland design should start from the same squeeze figures as FKM and then be checked against the grade's compression set at the actual service temperature. Sizes outside the ranges listed here are available on request — send a drawing or a part number and we will confirm availability.
沟槽设计指引
以下为通用弹性密封工程惯例,供您判断其对自有沟槽的适用性。牌号专属设计数值按询盘确认。
| 参数 | 数值 | 说明 |
|---|---|---|
| Squeeze (compression) | 15–30 % | 静态径向或轴向 O 型圈密封的常规工作区间。全氟醚因高温下模量保持能力更优,比 FKM 更能承受区间上限。 |
| Gland fill | 70–90 % | 需为密封件热膨胀及介质溶胀留出余量。强腐蚀介质工况应单独进行沟槽填充率计算。 |
| Extrusion gap | Fit with a back-up ring above the threshold | 高温高压工况下,或选用 90 邵氏 A 牌号(如 OM9090)时,通常需配置支承环(常用 PTFE)防止挤出。 |
| Surface finish | Ra ≤ 1.6 µm groove, Ra ≤ 0.8 µm sealing surface | 密封面粗糙度应细于沟槽面;加工纹方向与挤出方向一致,并清除沟槽底部模痕。 |
| Compression set | Specify the test temperature that matches service | 压缩永久变形必须按实际使用温度给出,而非取一个方便的参考温度。各牌号的测试条件见对应牌号页。 |