TYPE DB

 TYPE DB
- CRANE 909B
 

OPERATING LIMITS


Pressure:        Up to 52 Bar g/350 psig 

Speed:            Up to 25m/s/5000rpm

Temperature:  -100C to 500C
                         -150F to 930F
                         Depending on material used

 
Secondary Seal (TEFLON / GRAPHITE)

Stationary Ring (Ceramic / SIC/TC)

Rotary Ring (Carbon / SIC/TC)

Spring & Other Parts (S.S/SUS304/SUS316)
 
TYPE
SEAL CODE
SEAT CODE
d
d2
d3
d4
L1
L2

DB - 5/8
0158
0127
12.7
15.88
30.7
34
27
4.8
DB - 3/4
0190
0159
15.9
19.05
34
37
30
4.8
DB - 7/8
0222
0190
19.1
22.23
37.2
40
32
6.4
DB - 1
0254
0222
22.2
25.40
40.3
43
33
6.4
DB - 1 1/8
0285
0254
25.4
28.58
43.5
46
35
7.9
DB - 1 1/4
0317
0286
28.6
31.75
48.3
51
35
7.9
DB - 1 3/8
0349
0286
28.6
34.93
51.5
54
37
8.7
DB - 1 1/2
0381
0318
31.8
38.10
54.6
58
37
8.7
DB - 1 5/8
0412
0349
34.9
41.28
61
64
45
8.7
DB - 1 3/4
0444
0381
38.1
44.45
64.2
67
45
9.5
DB - 1 7/8
0476
0413
41.3
47.63
67.3
70
45
9.5
DB - 2
0508
0445
44.5
50.80
70.5
73
45
9.5
DB - 2 1/8
0539
0476
47.6
53.98
76.9
80
52
11.1
DB - 2 1/4
0571
0508
50.8
57.15
80
83
52
11.1
DB - 2 3/8
0603
0540
54
60.33
83.2
86
52
11.1
DB - 2 1/2
0635
0572
57.2
63.50
86.4
89
52
11.1
DB - 2 5/8
0666
0603
60.3
66.68
89.6
92
52
11.1
DB - 2 3/4
0698
0635
63.5
69.85
92.7
96
52
11.1
DB - 2 7/8
0730
0667
66.7
73.03
95.9
99
52
11.1
DB - 3
0762
0699
69.9
76.20
97.5
100
52
11.1
DB - 3 1/8
0793
0730
73
79.38
100.7
104
52
11.1
DB - 3 1/4
0825
0762
76.2
82.55
105.4
108
52
14.3
DB - 3 3/8
0857
0794
79.4
85.73
108.6
111
52
14.3
DB - 3 1/2
0889
0826
82.6
88.90
111.8
115
52
14.3
DB - 3 5/8
0920
0857
85.7
92.08
115
118
52
14.3
DB - 3 3/4
0952
0889
88.9
95.25
118.1
121
52
14.3
DB - 3 7/8
0984
0921
92.1
98.43
121.3
124
52
14.3
DB - 4
1016
0953
95.3
101.60
124.5
127
52
14.3
DB - 4 1/8
1047
0984
98.4
104.78
127.7
131
52
14.3
DB - 4 1/4
1079
1016
101.6
107.95
130.8
134
52
14.3
DB - 4 3/8
1111
1048
104.8
111.13
134
137
52
14.3
DB - 4 1/2
1143
1080
108
114.30
137.2
140
52
14.3
 
Heavy Duty Rubber Bellows, Single Acting Seal with Standard Seat. DIN Seats are also available for your choice.