Cartridges & Mechanical Seals

101 MULTISPRING SEALS CHARACTERISTICS: • Balanced. • System attached to the shaft by allen screws • Not dependent on the rotation direction. OPERATING LIMITS: d 1 = 18 ÷ 100 mm p= 25 kg/cm ² v= 20 m/s t= -15÷ +200oC ( *) ( * ) The temperature resistance depends on the material of the secondary seals used. The operating limits are defined by the PV factor which is determined for the sealing system characteristics and those of the application. DESCRIPTION: The fact that the springs are not in contact with the fluid makes this mechanical seal perfect for working with particle-laden fluids, as it prevents them from becoming blocked or obstructed. Its structure and design makes it ideal for vacuum operations without having to use a retaining ring. It can be used with a single, tandem-mounted (API52) or back-to back (API53) mounting system. The O- ring resting on the shaft is not affected by any axial movement (changes in pressure) and therefore produces no wear on the surface of the shaft. Seal compliant with standard EN 12756 (KU). COMPONENTS: 1 Rotating contact surface 2 Stationary contact surface 3a O-rings 3b O-rings 3c O-rings 3d O-rings 4 Springs 5 Metal frame 5a Set screws DIMENSIONS CHART Dimensions in mm LMS29 Shaft Rotary part Stationary part Total length mm d 3 d 4 I 3 d 5 d 6 d 7 d 8 I 5 I 6 I 1k 18 33 34.7 19.5 39.7 27 33 3 2.0 5 37.5 20 35 36.7 19.5 41.7 29 35 3 2.0 5 37.5 22 37 38.7 19.5 43.7 31 37 3 2.0 5 37.5 24 39 40.7 20.5 45.7 33 39 3 2.0 5 40.0 25 40 41.7 20.5 46.7 34 40 3 2.0 5 40.0 28 43 44.7 21.5 49.7 37 43 3 2.0 5 42.5 30 45 46.7 21.5 51.7 39 45 3 2.0 5 42.5 32 48 49.7 21.5 54.7 42 48 3 2.0 5 42.5 33 48 49.7 21.5 54.7 42 48 3 2.0 5 42.5 35 50 51.7 21.5 56.7 44 50 3 2.0 5 42.5 38 56 57.7 24.0 62.7 49 56 4 2.0 5 45.0 40 58 59.7 24.0 64.7 51 58 4 2.0 5 45.0 43 61 62.7 24.0 67.7 54 61 4 2.0 5 45.0 45 63 64.7 24.0 69.7 56 63 4 2.0 5 45.0 48 66 67.7 24.0 72.7 59 66 4 2.0 5 45.0 50 70 71.7 25.0 76.7 62 70 4 2.5 6 47.5 53 73 74.7 25.0 79.7 65 73 4 2.5 6 47.5 55 75 76.7 25.0 81.7 67 75 4 2.5 6 47.5 58 78 80.5 28.0 85.5 70 78 4 2.5 6 52.5 60 80 82.5 28.0 87.5 72 80 4 2.5 6 52.5 63 83 85.5 28.0 90.5 75 83 4 2.5 6 52.5 65 85 87.5 28.0 92.5 77 85 4 2.5 6 52.5 68 90 92.5 28.0 97.5 81 90 4 2.5 7 52.5 70 92 94.5 34.0 99.5 83 92 4 2.5 7 60.0 75 97 100.5 34.0 105.5 88 97 4 2.5 7 60.0 80 105 108.5 34.0 113.5 95 105 4 3.0 7 60.0 85 110 113.5 34.0 118.5 100 110 4 3.0 7 60.0 90 115 118.5 39.0 123.5 105 115 4 3.0 7 65.0 95 120 123.5 39.0 128.5 110 120 4 3.0 7 65.0 100 125 128.5 39.0 133.5 115 125 4 3.0 7 65.0 Dimensions subject to changes or modifications. SECTORS: