M74型机械密封
结构特点:单端面,任意旋向,符合EN12756(DIN24960)标准,推环由传动搭子卡住,防止弹簧脱落,静环可限位,弹簧行程受限制,避免碳环过度磨损。
应用领域:广泛应用于污水处理系统和化工泵。
运行参数:压力:M7N,M74非平衡型≤1.6MPaH7N,H75,H76平衡型≤6MPa
温度:-40~220℃速度:≤20m/s
M74多弹簧结构
静环(车制石墨/碳化硅/碳化钨)
动环(碳化硅/碳化钨/碳石墨)
辅助密封(氟胶/包氟)
弹簧及其它金属件(不锈钢)
Sealsized(mm)
d3 |
d6 |
d7 |
L1 |
L3 |
f |
25 |
21 |
25 |
35.0 |
10.0 |
6 |
27 |
23 |
27 |
35.0 |
10.0 |
6 |
33 |
29 |
33 |
37.5 |
11.5 |
7 |
35 |
29 |
35 |
37.5 |
11.5 |
7 |
37 |
31 |
37 |
37.5 |
11.5 |
7 |
39 |
33 |
39 |
40.0 |
11.5 |
8 |
40 |
34 |
40 |
40.0 |
11.5 |
8 |
43 |
37 |
43 |
42.5 |
11.5 |
8 |
45 |
39 |
45 |
42.5 |
11.5 |
8 |
47 |
42 |
48 |
42.5 |
11.5 |
8 |
48 |
42 |
48 |
42.5 |
11.5 |
8 |
50 |
44 |
50 |
42.5 |
11.5 |
8 |
55 |
49 |
56 |
45.0 |
14.0 |
8 |
57 |
51 |
58 |
45.0 |
14.0 |
8 |
60 |
54 |
61 |
45.0 |
14.0 |
8 |
62 |
56 |
63 |
45.0 |
14.0 |
8 |
65 |
59 |
66 |
45.0 |
14.0 |
8 |
67 |
62 |
70 |
47.5 |
15.0 |
8 |
70 |
65 |
73 |
47.5 |
15.0 |
8 |
72 |
67 |
75 |
47.5 |
15.0 |
8 |
79 |
70 |
78 |
52.5 |
15.0 |
9 |
81 |
72 |
80 |
52.5 |
15.0 |
9 |
84 |
75 |
83 |
52.5 |
15.0 |
9 |
86 |
77 |
85 |
52.5 |
15.0 |
9 |
89 |
81 |
90 |
52.5 |
18.0 |
9 |
91 |
83 |
92 |
60.0 |
18.0 |
9 |
99 |
88 |
97 |
60.0 |
18.0 |
10 |
104 |
95 |
105 |
60.0 |
18.2 |
10 |
109 |
100 |
110 |
60.0 |
18.2 |
10 |
114 |
105 |
115 |
65.0 |
18.2 |
10 |
119 |
110 |
120 |
65.0 |
17.2 |
10 |
124 |
115 |
125 |
65.0 |
17.2 |
10 |
M74型机械密封