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product detail
  • Product Name： Burgmann Type 7N
  • Model No： Burgmann Type 7N
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Description:

Materials:
Rotary Ring:SiC/TC
Stationary Ring: SiC/TC
Secondary Seals: NBR/FPM/EPDM
Metal parts: SS304/SS316

Applications:
Shaft Size =20 ～100mm
Pressure: 0.8 Mpa
Temperature: -20 ～ 150 ℃
Speeds: 13 m/s
Oil,water,sewage water and general corrosive

Features:
•Internally mounted,single face,large spring,unbalanced structure and driven by closed coin each end.
•The installation dimensions conform to the standard of GB6556,ISO03069 and DIN24960,which have a wide application range.

MODEL D1 D3 D4 D6 D7 D8 L L3 L4 L5 L6 L10
7N-18 18 32 34 27 33 3 45 35 10 2 5 17.5
7N-20 20 34 36 29 35 3 45 35 10 2 5 17.5
7N-22 22 36 38 31 37 3 45 35 10 2 5 17.5
7N-24 24 38 40 33 39 3 50 40 10 2 5 17.5
7N-25 25 39 41 34 40 3 50 40 10 2 5 17.5
7N-28 28 42 44 37 43 3 50 40 10 2 5 17.5
7N-30 30 44 46 39 45 3 50 40 10 2 5 17.5
7N-32 32 46 48 42 48 3 55 45 10 2 5 17.5
7N-35 35 49 51 44 50 3 55 45 10 2 5 17.5
7N-38 38 54 58 49 56 3 57 44 13 2 6 20
7N-40 40 56 60 51 58 4 57 44 13 2 6 20
7N-45 45 61 65 56 63 4 62 49 13 2 6 20
7N-50 50 66 70 62 70 4 61 47 14 2.5 6 21
7N-55 55 71 75 67 75 4 71 57 14 2.5 6 21
7N-60 60 80 85 72 80 4 71 57 14 2.5 6 21
7N-65 65 85 90 77 85 4 81 67 14 2.5 6 21
7N-70 70 90 95 83 92 4 83 67 16 2.5 7 22
7N-75 75 99 105 88 97 4 80.5 64.5 16 2.5 7 22
7N-80 80 104 109 95 105 4 92.5 74.5 18 3 7 24.5
7N-85 85 109 114 100 110 4 92.5 74.5 18 3 7 24.5
7N-90 90 114 119 105 115 4 92.5 74.5 18 3 7 24.5
7N-95 95 119 124 110 120 4 92.5 74.5 18 3 7 24.5
7N-100 100 124 129 115 125 4 92.5 74.5 18 3 7 24.5
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