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Mechanical seal R-4702

Mechanical seal R-4702

Double mechanical seal R-4702 - with elastomeric bellows, independent of the direction of rotation of the shaft, with a central spring, unloaded. In the chamber of the mechanical seal, a shut-off fluid (often an oil chamber) is used to lubricate and cool the sealing surfaces, under pressure exceeding the pressure of the working medium by 0.1 ... 0.2 Mpa. In case of leakage, the barrier liquid penetrates into the product.

Application: Grundfos, Pedrollo and other submersible pumps, sewage pumps. Sealed media may include solid particles.

Analog of mechanical seals: Burgmann EA560D.

Temperature: -20°~70°

Pressure: ≤0.3 MPa

Speed: ≤20 m/sec

Materials:

  • Rotary ring: Carbon/SIC;
  • Stationary ring: Carbon/SIC;
  • Bellows: NBR/VITON;
  • Spring: SS304/SS316;
  • Metal parts: SS304/SS316.
d1 (H6) d7 (Max) D7 (h8) L1D (±0.5) L4 LI4
12 25 25 36,0 5 5
13 25 25 36,0 5 5
14 30 30 38,0 5 5
15 30 30 38,0 5 5
16 30 30 38,0 5 5
18 35 38 49,0 7 7
19 35 38 49,0 7 7
20 38 44 49,0 7 7
25 44 50 51,0 7 7
30 50 57 59,0 9 8
35 58 64 61,0 9 9
40 64 70 64,5 11 9
45 66 70 65,0 10 9
50 72 80 69.5 10 9
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