[[MetaDescription]]
Equivalent to:
● Flowserve RO-A & Flowserve RO-B Multi Springs Mechanical Seal
Operating Limits:
● Temperature: -20℃ - +180℃
● Pressure:≤ 10bar
● Speed: ≤ 15m/s
● Shaft Size: 20mm - 100mm
Materials:
● Seal Rings: A,B,Q1/12,Q2/22, U1/12,U2/22
● Elastomer: VITON, EPDM, NBR, FFKM, AFLAS
● Metal Part: SS304, SS316
Assembly Dwg:

Dimensions (mm):
| D | D3 | L1 | RO-A | RO-B | |||||||
| L2 | L3 | L7 | D2 | D7 | L4 | L5 | D6 | D8 | |||
| 20 | 34 | 35 | 23 | 25 | 18 | 36 | 42 | 13 | 21 | 29 | 35 |
| 22 | 36 | 35 | 23 | 25 | 18 | 38 | 44 | 13 | 21 | 31 | 37 |
| 24 | 38 | 35 | 23 | 25 | 18 | 40 | 46 | 13 | 21 | 33 | 39 |
| 25 | 39 | 35 | 23 | 25 | 18 | 41 | 47 | 13 | 21 | 34 | 40 |
| 28 | 42 | 35 | 23 | 25 | 18 | 44 | 50 | 13 | 21 | 37 | 43 |
| 30 | 44 | 35 | 23 | 25 | 18 | 46 | 52 | 13 | 21 | 39 | 45 |
| 32 | 46 | 35 | 23 | 25 | 18 | 48 | 54 | 13 | 21 | 42 | 48 |
| 33 | 47 | 35 | 23 | 25 | 18 | 49 | 55 | 13 | 21 | 42 | 48 |
| 35 | 49 | 35 | 23 | 25 | 18 | 51 | 57 | 13 | 21 | 44 | 50 |
| 38 | 54 | 39 | 25 | 27 | 20 | 58 | 64 | 13 | 21 | 50 | 56 |
| 40 | 56 | 39 | 25 | 27 | 20 | 60 | 66 | 13 | 21 | 52 | 58 |
| 42 | 58 | 39 | 25 | 27 | 20 | 62 | 68 | / | / | / | / |
| 43 | 59 | 39 | 25 | 27 | 20 | 63 | 69 | 13 | 21 | 55 | 61 |
| 45 | 61 | 39 | 25 | 27 | 20 | 65 | 71 | 13 | 21 | 57 | 63 |
| 48 | 64 | 39 | 25 | 27 | 20 | 68 | 74 | 13 | 21 | 60 | 66 |
| 50 | 66 | 39 | 25 | 27 | 20 | 70 | 76 | 13 | 21 | 62 | 68 |
| 52 | 68 | 40 | 25 | 27 | 20 | 72 | 78 | / | / | / | / |
| 53 | 69 | 40 | 25 | 27 | 20 | 73 | 79 | 13 | 21 | 65 | 71 |
| 55 | 71 | 40 | 25 | 27 | 20 | 75 | 81 | 13 | 21 | 67 | 73 |
| 58 | 76 | 41 | 28 | 30 | 22 | 83 | 89 | 16 | 24 | 70 | 79 |
| 60 | 78 | 41 | 28 | 30 | 22 | 85 | 91 | 16 | 24 | 72 | 81 |
| 62 | 80 | 41 | 28 | 30 | 22 | 87 | 93 | / | / | / | / |
| 63 | 81 | 41 | 28 | 30 | 22 | 88 | 94 | 16 | 24 | 75 | 84 |
| 65 | 83 | 41 | 28 | 30 | 22 | 90 | 96 | 16 | 24 | 77 | 86 |
| 68 | 86 | 41 | 30 | 32 | 24 | 93 | 99 | 16 | 24 | 81 | 90 |
| 70 | 90 | 42 | 30 | 32 | 24 | 95 | 101 | 16 | 24 | 83 | 92 |
| 75 | 95 | 42 | 30 | 32 | 24 | 104 | 110 | 16 | 24 | 88 | 97 |
| 80 | 100 | 42 | 31 | 33 | 25 | 109 | 115 | 16 | 24 | 96 | 105 |
| 85 | 105 | 43 | 31 | 33 | 25 | 114 | 120 | 16 | 24 | 101 | 110 |
| 90 | 110 | 45 | 31 | 33 | 25 | 119 | 125 | 16 | 24 | 106 | 115 |
| 95 | 115 | 45 | 31 | 33 | 25 | 124 | 130 | 16 | 24 | 111 | 120 |
| 100 | 120 | 45 | 31 | 33 | 25 | 129 | 135 | 16 | 24 | 116 | 125 |
Related Introduction
The technical requirements for mechanical seals are relatively high, and a variety of knowledge theories coexist. Take mechanical seals or floating ring seals as an example. To solve these sealing problems, it is necessary to consider the influence of the deformation of the stator and rotor components due to the force and temperature, as well as the impact of vibration and wear on the hydrodynamic characteristics of the fluid film. That is to say, it is necessary to study and analyze the sealing problem from the aspects of fluid dynamics, elastic theory, heat transfer, tribology and vibration theory. This is the theoretical foundation and basic knowledge that engineers and technicians engaged in sealing technology should possess.
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