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Mechanical Seals

 
ZL21

Applications:
Shaft Size =0.375 ¡« 3.000'',
12 ¡« 85mm
Pressure: 1.6Mpa
Temperature: -40 ¡« 200 ¡æ
Speeds: 15m/s
Equivalent to John Crane type 21/521,Pac-seal type 21,US Seal type C

Materials:
Rotary Ring: Carbon/SiC/TC
Stationary Ring: Ceramic/SiC/TC/Ni-resist
Secondary Seals: NBR/FPM/EPDM/Neoprene
Spring & Other Parts: SS304/SS316/SS316Ti

ZL20
d
D
D1
L
L1
0.375
0.812
0.968
1.000
0.344
0.500
0.937
1.094
1.000
0.344
0.625
1.062
1.218
1.000
0.406
0.750
1.187
1.344
1.000
0.406
0.875
1.312
1.468
1.000
0.406
1.000
1.687
1.594
1.000
0.406
1.125
1.812
1.875
1.299
0.469
1.250
1.937
2.000
1.299
0.469
1.375
2.062
2.125
1.299
0.469
1.500
2.187
2.250
1.299
0.469
1.625
2.500
2.375
1.299
0.469
1.750
2.625
2.500
1.615
0.469
1.875
2.750
2.625
1.615
0.469
2.000
2.875
2.750
1.615
0.531
2.125
3.000
2.875
1.615
0.531
2.250
3.125
3.000
1.615
0.531
2.375
3.250
3.125
1.615
0.531
2.500
3.343
3.250
1.615
0.531
2.625
3.500
3.625
1.937
0.625
2.750
3.750
3.750
1.937
0.625
2.875
3.875
3.875
2.062
0.625
3.000
4.000
4.000
2.062
0.625
ZL21
d
D
D1
L
L1
0.375
0.812
0.875
0.812
0.284
0.500
0.937
1.000
0.812
0.312
0.625
1.062
1.250
0.875
0.406
0.750
1.187
1.375
0.875
0.406
0.875
1.312
1.500
0.937
0.406
1.000
1.687
1.625
1.000
0.437
1.125
1.812
1.750
1.062
0.437
1.250
1.937
1.875
1.062
0.437
1.375
2.062
2.000
1.125
0.437
1.500
2.187
2.125
1.125
0.437
1.625
2.500
2.375
1.375
0.500
1.750
2.625
2.500
1.375
0.500
1.875
2.750
2.625
1.500
0.500
2.000
2.875
2.750
1.500
0.500
2.125
3.000
3.000
1.687
0.562
2.250
3.125
3.125
1.687
0.562
2.375
3.250
3.250
1.812
0.562
2.500
3.343
3.375
1.812
0.562
2.625
3.500
3.375
1.937
0.625
2.750
3.750
3.500
1.937
0.625
2.875
3.875
3.750
2.062
0.625
3.000
4.000
3.875
2.062
0.625
   
ZL24
d
D
D1
L
L1
12
21.7
23.0
23.9
8.6
14
23.9
25.0
26.4
8.6
16
26.7
27.0
26.4
8.6
18
30.4
33.0
27.5
10.0
20
33.4
35.0
27.5
10.0
22
33.4
37.0
27.5
10.0
24
38.0
39.0
30.0
10.0
25
39.3
40.0
30.0
10.0
28
42.0
43.0
32.5
10.0
30
44.0
45.0
32.5
10.0
32
45.8
48.0
32.5
10.0
33
45.8
48.0
32.5
10.0
35
49.0
50.0
34.0
11.0
38
52.8
56.0
34.0
11.0
40
55.8
58.0
34.0
11.0
43
58.8
61.0
34.0
11.0
45
61.0
63.0
34.0
11.0
48
64.0
66.0
34.0
11.0
50
66.0
70.0
34.5
13.0
55
71.7
75.0
34.5
13.0
58
78.4
78.0
39.5
13.0
60
78.4
80.0
39.5
13.0
63
81.5
83.0
39.5
13.0
65
84.3
85.0
39.5
13.0
68
89.7
90.0
37.2
15.3
70
89.7
92.0
37.2
15.3
75
96.8
97.0
44.7
15.3
80
104.0
110.0
44.3
15.7
85
109.0
105.0
44.3
15.7
 
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