Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal
Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal
Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal
Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal
Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal

Mechanical Seal TB502 Replace John Crane type 502 seal, Aesseal B07 seal

Model
TB502

Item specifics

Temperature
-20℃-120℃
Speed
≦15m/s
Pressure
≦2.5MPA
Stationary Seat
TBBO
Rotary Ring Material
CAR/SIC/TC
Stationary Ring Material
CER/SIC/TC
O-Ring Material
VIT/NBR/EPDM
Spring & Metal Parts
SUS304/SUS316
Application
Clean Water，Sewage Water，Oil

Review

Description

Product Introduction 
Product Size
Product Details
Product Model
Mechanical seal TB502 
Replacement to:
John Crane type 502 seal
Aesseal B07 seal


Operational Conditions:
Temperature: -20℃ to +120℃
Pressure: ≤2.5MPa
Speed: ≤15m/s

Materials:
Stationary Ring: Silicon Carbide, TC, Carbon
Rotary Ring: Silicon Carbide, Ceramic, TC
Secondary Seal: NBR, EPDM, Viton
Spring and Metal Parts: SUS304,SUS316 
Applications:
Clean water,
sewage water
oil and other moderately corrosive fluids
Stationary Seat:
Standard: TBBO
Alternative:
Product details
SIZE
Size/
Metric
d
D3
D2
D1
L1
L2
L3
14
14
24
21
25
23.0
12.0
12.8
16
16
26
23
27
23.0
12.0
12.8
18
18
32
27
33
24.0
13.5
14.5
20
20
34
29
35
24.0
13.5
14.5
22
22
36
31
37
24.0
13.5
14.5
24
24
38
33
39
26.7
13.3
14.3
25
25
39
34
40
27.0
13.0
14.0
28
28
42
37
43
30.0
12.5
13.5
30
30
44
39
45
30.5
12.0
13.0
32
32
46
42
48
30.5
12.0
13.0
33
33
47
42
48
30.5
12.0
13.0
35
35
49
44
50
30.5
12.0
13.0
38
38
54
49
56
32.0
13.0
14.0
40
40
56
51
58
32.0
13.0
14.0
43
43
59
54
61
32.0
13.0
14.0
45
45
61
56
63
32.0
13.0
14.0
48
48
64
59
66
32.0
13.0
14.0
50
50
66
62
70
34.0
13.5
14.5
53
53
69
65
73
34.0
13.5
14.5
55
55
71
67
75
34.0
13.5
14.5
58
58
78
70
78
39.0
13.5
14.2
60
60
80
72
80
39.0
13.5
14.2
63
63
83
75
83
39.0
13.5
14.2
65
65
85
77
85
39.0
13.5
14.2
68
68
88
81
90
39.0
13.5
14.2
70
70
89
83
92
45.5
14.5
15.2
75
75
96
88
97
45.5
14.5
15.2
80
80
104
95
105
45.0
15.0
15.7
85
85
108
100
110
45.0
15.0
15.7
90
90
114
105
115
50.0
15.0
15.7
95
95
118
110
120
50.0
15.0
15.7
100
100
124
115
125
50.0
15.0
15.7

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