结构特点：
采用聚四乙烯、填充聚四氟乙烯或柔性石墨制作的楔形环作辅助密封圈，提高了密封的使用温度和耐磨性。
为小弹簧结构，非平衡型密封，轴向尺寸短，密封端面受压均匀。
通用性强，符合ISO 3069和DIN 24960标准。
适用范围：
压力：≤1.6MPa
温度：-50~250℃
线速度：≤25m/s
用途：用于化工、石油化工、炼油、制冷、制药、造纸、给排水、污水处理等工业泵类、反应釜、压缩机等设备的旋转轴密封，介质为水、油、有机溶剂及其它弱腐蚀性液体。
| 型号 Model |
d
|
D3
|
D4
|
D6
|
D7
|
D8
|
D9
|
L
|
L3
|
L4
|
L7
|
L8
|
L9
|
| DS59U-20 |
20
|
34
|
36
|
29
|
35
|
3
|
6.5
|
37.5
|
24
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-22 |
22
|
36
|
38
|
31
|
37
|
3
|
6.5
|
37.5
|
24
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-24 |
24
|
38
|
40
|
33
|
39
|
3
|
6.5
|
40
|
26.7
|
13.3
|
9
|
20.3
|
14.5
|
| DS59U-25 |
25
|
39
|
41
|
34
|
40
|
3
|
6.5
|
40
|
27
|
13
|
9
|
20
|
14
|
| DS59U-28 |
28
|
42
|
44
|
37
|
43
|
3
|
6.5
|
42.5
|
30
|
12.5
|
9
|
19.5
|
13.5
|
| DS59U-30 |
30
|
44
|
46
|
39
|
45
|
3
|
6.5
|
42.5
|
30.5
|
12
|
9
|
19
|
13
|
| DS59U-32 |
32
|
46
|
48
|
42
|
48
|
3
|
6.5
|
42.5
|
30.5
|
12
|
9
|
19
|
13
|
| DS59U-33 |
33
|
47
|
49
|
42
|
48
|
3
|
6.5
|
42.5
|
30.5
|
12
|
9
|
19
|
13
|
| DS59U-35 |
35
|
49
|
51
|
44
|
50
|
3
|
6.5
|
42.5
|
30.5
|
12
|
9
|
19
|
13
|
| DS59U-38 |
38
|
54
|
58
|
49
|
56
|
4
|
6.5
|
45
|
32
|
13
|
9
|
20
|
14
|
| DS59U-40 |
40
|
56
|
60
|
51
|
58
|
4
|
6.5
|
45
|
32
|
13
|
9
|
20
|
14
|
| DS59U-43 |
43
|
59
|
63
|
54
|
61
|
4
|
6.5
|
45
|
32
|
13
|
9
|
20
|
14
|
| DS59U-45 |
45
|
61
|
65
|
56
|
63
|
4
|
6.5
|
45
|
32
|
13
|
9
|
20
|
14
|
| DS59U-48 |
48
|
64
|
68
|
59
|
66
|
4
|
6.5
|
45
|
32
|
13
|
9
|
20
|
14
|
| DS59U-50 |
50
|
66
|
70
|
62
|
70
|
4
|
6.5
|
47.5
|
34
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-53 |
53
|
69
|
73
|
65
|
73
|
4
|
6.5
|
47.5
|
34
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-55 |
55
|
71
|
75
|
67
|
75
|
4
|
6.5
|
47.5
|
34
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-58 |
58
|
78
|
83
|
70
|
78
|
4
|
6.5
|
52.5
|
39
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-60 |
60
|
80
|
83
|
72
|
80
|
4
|
6.5
|
52.5
|
39
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-63 |
63
|
83
|
88
|
75
|
83
|
4
|
6.5
|
52.5
|
39
|
13.5
|
9
|
20.5
|
14.5
|
| DS59U-65 |
65
|
85
|
90
|
77
|
85
|
4
|
6.5
|
52.5
|
39
|
13.5
|
9
|
20.5
|
14.2
|
| DS59U-68 |
68
|
88
|
93
|
81
|
90
|
4
|
6.5
|
52.5
|
39
|
13.5
|
9
|
20.5
|
14.2
|
| DS59U-70 |
70
|
90
|
95
|
83
|
92
|
4
|
6.5
|
60
|
45.5
|
14.5
|
9
|
21.5
|
15.2
|
| DS59U-75 |
75
|
95
|
104
|
88
|
97
|
4
|
6.5
|
60
|
45.5
|
14.5
|
9
|
21.5
|
15.2
|
| DS59U-80 |
80
|
104
|
109
|
95
|
105
|
4
|
9.5
|
60
|
45
|
15
|
9
|
22
|
15.7
|
| DS59U-85 |
85
|
109
|
114
|
100
|
110
|
4
|
9.5
|
60
|
45
|
15
|
9
|
22
|
15.7
|
| DS59U-90 |
90
|
114
|
119
|
105
|
115
|
4
|
9.5
|
65
|
50
|
15
|
9
|
22
|
15.7
|
| DS59U-95 |
95
|
118
|
124
|
110
|
120
|
4
|
9.5
|
65
|
50
|
15
|
9
|
22
|
15.7
|
| DS59U-100 |
100
|
124
|
129
|
115
|
125
|
4
|
9.5
|
65
|
50
|
15
|
9
|
22
|
15.7
|
