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Yitong multiple-spring mechanical seal for pumps in petroleum & chemical industry YTB1250 pages
MECHANICAL SEALS
YTB125 Mechanical Seal For General Service Pump
(comply with EN12756, IS03069, GB6556)
Design Features:
1. Multiple spring.
2. Balanced.
3. Adapt to high viscosity
Operating Limits:
1. Pressure: 0~4. OMPa
2. Temperature: -40~220°C
.Speed: ^8000r/min
L Linear speed: ^40m/s
Medium: high viscosity,
troleumproducts, such as
ter crude oil, residual
1
Material Selection
Seal Component! | Material | YTB125 |
Face i | Sic | |
ungsten carbic | ||
graphite | ||
Spring | CrNi-steel | o |
CrNiMo-steel | ||
Seal Ring | FKM | |
NBR | 0 | |
EPR | 0 | |
Metal Parts | CrNi-steel | V |
CrNiMo-steel | 0 |
Note: 1. V preferred material.
2. 44o" optional material. It is determined according to
the Actual requirements^
i
3. For material not listed, please contact us for
special design inquires.
MECHANICAL SEALS
YTB125 structure drawing
medium side
CO
EQS
CsJ
T
L2
L6
L3
\ 1
L7
atmospheric
side
EQS
T
CsJ
T
CO
Size For Seal Seats(mm)
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
32.5
36
41.5
46.5
51.5
56.5
61
66
72.5
77.5
79.5
85.5
92.5
97.5
102.5
47
51
62
67
72
78
83
88
97
98
103
108
1 15
12
124
40
44
52
56
62
67
72
76
84
88
91
97
103
110
113
18
20
25
25
25
30
30
30
30
30
30
30
30
30
30
8-M4
8-M4
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
6-M6
8-M6
8-M6
6
6
8
8
8
8
8
10
10
10
10
10
10
10
10
30
30
40
52
52
55
55
55
55
50
50
50
58
50
50
5
5
5
5
5
5
5
5
8
8
8
8
10
0
0
6
6
8
8
8
8
8
10
10
10
10
10
10
0
0
5
5
6
6
6
6
6
6
6
6
6
6
6
8
8
ii
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