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R-128/R-128P

Mechanical seal R-128/128P

Mechanical seal R-128. It is applied to series pumps: SNM7N, Grundfos, Calpeda and so on. Mechanical seal equivalent: W011U, Aesseal W07D / W07DM, Flowserve Pac-Seal Europac600, Sterling 270

Temperature: -20°~200°

Pressure: ≤0.8 MPa

Speed: ≤10 m/sec

Materials

  • Rotary ring: SIC / TC
  • Stationary ring: Carbon/SIC/TC
  • Bellows: NBR/EPDM/VITON
  • Spring: SS304
  • Metal parts: SS304

Mechanical seal R-128

d1 d3 (Max) d6 d7 (H8) L3 (±0.5) L4
20 34 29 35 35.0 10.0
22 36 31 37 35.0 10.0
25 39 34 40 40.0 10.0
28 42 37 43 40.0 10.0
30 44 39 45 40.0 10.0
35 49 44 50 45.0 10.0
38 54 49 56 44.0 11.0
40 56 51 58 44.0 11.0
45 61 56 63 49.0 11.0
50 66 62 70 47.0 13.0
55 71 67 75 57.0 13.0
60 80 72 80 57.0 13.0
65 85 77 85 67.0 13.0
70 90 83 92 64,7 15,3
75 99 88 97 64,7 15,3

Mechanical seal R-128P

d1 d2 d3 (Max) d6 d7 (H8) L23 (±0.5) L24
18 14 32 27 33 19,5 6,5
20 16 34 29 35 19,5 6,5
22 18 36 31 37 22.0 6,5
25 20 39 34 40 25.0 8.0
28 23 42 37 43 27,5 8,5
30 25 44 39 45 27,5 8,5
35 30 49 44 50 29,5 8,5
38 33 54 49 56 30,5 9,5
40 35 56 51 58 30,5 9,5
45 40 61 56 63 30,5 9,5
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