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R-58B/59B

Mechanical seal R-58B/59B

Single mechanical seal series R-59B, R-58B. Applies to pumps of the series: Ebara, Hidrostal, Godwin, etc. Mechanical seal equivalent: John Crane 59B / 58B, T9, T909 seal Roten 90 seal Sealol T seal Sterling 290 seal.

Temperature: -40°~200°

Pressure: ≤2.5 MPa

Speed: ≤25 m/sec

Materials

  • Rotary ring: Carbon/SIC/TC
  • Stationary ring: SIC/TC/SUS
  • Bellows: EPDM/VITON/PTFE
  • Spring: SS304 / SS316.
  • Metal parts: SS304 / SS316.
d1 d2 d3 d6 d7 L2 L3 L4
(H6) (Max) (h8) (±0.5)   (h8)    
16 20 34 23 27 18 30.5 12.0
18 22 36 27 33 20 31.5 13.5
20 24 38 29 35 20 31.5 13.5
22 26 40 31 37 20 31.5 13.5
24 28 42 33 39 20 34.2 13.3
25 30 44 34 40 20 34.5 13.0
28 33 47 37 43 20 37.5 12.5
30 35 49 39 45 20 38.0 12.0
32 38 54 42 48 20 38.0 12.0
33 38 54 42 48 20 38.0 12.0
35 40 56 44 50 20 38.0 12.0
38 43 59 49 56 23 39.5 13.0
40 45 61 51 58 23 39.5 13.0
43 48 64 54 61 23 39.5 13.0
45 50 66 55 63 23 39.5 13.0
48 53 69 59 66 23 39.5 13.0
50 55 71 62 70 25 44.0 13.5
53 58 78 65 73 25 44.0 13.5
55 60 80 67 75 25 44.0 13.5
58 63 83 70 78 25 49.0 13.5
60 65 85 72 80 25 49.0 13.5
63 68 88 75 83 25 49.0 13.5
65 70 90 77 85 25 49.0 13.5
70 75 95 83 92 28 55.5 14.5
75 80 104 88 97 28 55.0 14.5
80 85 109 95 105 28 55.0 15.0
85 90 114 100 110 28 60.0 15.0
90 95 119 105 115 28 60.0 15.0
95 100 124 110 120 28 60.0 15.0
100 105 129 115 125 28 60.0 15.0
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