Cartridges & Mechanical Seals

117 BELLOWS SEALS CHARACTERISTICS: • Balanced. • Spiral-wound metal bellows. • Not dependent on the rotation direction. OPERATING LIMITS: d 1 = 18 ÷ 100 mm p= 20 kg/cm ² v= 25 m/s t= -40÷ +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: Balanced by the bellows, without the need for a stepped shaft (models LWS10B, LMS20B). Suitable for working in applications with high pressures. The O-ring resting on the shaft does not cause wear as there is no axial movement (changes in pressure). Recommended for working with sticky or viscous fluids that require cleaning processes (CIP) or sterili- sation processes (SIP) in situ due to the geometry of the spiral-wound bellows. COMPONENTS: 1 Rotating contact surface 3 O-rings 4 Metal bellows. 5 Set screws 6 Metal frame Dimensions subject to changes or modifications. LMB84 SECTORS: DIMENSIONS CHART Dimensions in mm Dimensions in mm Shaft Rotary part mm d 3 d 4 I 3 18 31 34 31,5 20 31 36 31,5 22 31 38 31,5 24 36 40 36,7 25 36 41 37 28 39 44 37,5 30 42 46 38 32 46 48 43 33 46 49 43 35 48,5 51 43 38 51,5 58 42 40 54 60 42 43 58,4 63 47 45 58,4 65 47 48 63,7 68 47 50 63,7 70 46,5 53 69 73 56,5 55 71 75 56,5 58 73,3 83 56,5 60 76,7 85 56,5 63 79,4 88 56,5 65 83 90 66,5 68 87,8 93 66,5 70 87,8 95 65,5 75 94 104 65,5 80 100,6 109 75 85 106 114 75 90 110,3 119 75 95 114,9 124 75 100 121,3 129 75 0,750 19,05 31 34,9 31,5 0,875 22,23 36 38,1 37 1,000 25,40 39 41,3 37,5 1,125 28,58 42 44,5 38 1,250 31,75 46 47,6 43 1,375 34,93 48,5 50,8 43 1,500 38,10 51,5 57,2 42 1,625 41,28 58,4 60,3 47 1,750 44,45 58,4 63,5 47 1,875 47,63 63,7 66,7 46,5 2,000 50,80 63,7 69,9 46,5 2,125 53,98 69 73 56,5 2,250 57,15 73,3 76,2 56,5 2,375 60,33 76,7 79,4 56,5 2,500 63,50 79,4 82,6 56,5 2,625 66,68 83 85,7 66,5 2,750 69,85 87,8 96 65,5 2,875 73,03 94 99 65,5 3,000 76,20 94 100 65,5 3,125 79,38 100,6 104 75 3,250 82,55 100,6 108 75 3,375 85,73 106 111 75 3,500 88,90 110,3 115 75 3,625 92,08 114,9 118 75 3,750 95,25 114,9 121 75 3,875 98,43 121,3 124 75 4,000 101,60 121,3 127 75 Shaft Rotary part (“) mm d 3 d 4 I 3 This seal may be supplied with any of the statio- nary parts shown in pages 56 and 57. for mea- surements in mm, and 58 for the measurements in inches.