Cartridges & Mechanical Seals

118 BELLOWS SEALS LMB85 CHARACTERISTICS: • Balanced. • Welded metal bellows. • Not dependent on the rotation direction. OPERATING LIMITS: d 1 = 16 ÷ 100 mm p= 20 kg/cm ² v= 25 m/s t= -40÷ +200oC -40÷ +200 °C (up to 400º C with a special design) (* ) ( * ) 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: Internally balanced, with no need for a stepped shaft (models LWS10B, LMS20B). The O-ring resting on the shaft does not cause wear as there is no axial movement. Appropriate for applications with sticky or high viscosity fluids as its open leaf design genera- tes a self-cleaning effect. In addition it is suitable for application at moderate pressures and high tempe- ratures (for up to 400º C please enquire) and very aggressive fluids in chemical and mechanical terms. Very often used in compressors. COMPONENTS: 1 Rotating contact surface 2 Stationary contact surface 3 O-rings 3a O-rings 4 Metal bellows 5 Metal frame 5a Set screws SECTORS: DIMENSIONS CHART Dimensions in mm Dimensions in inches Shaft Rotary part Stationary part Total length (“) mm d 3 d 4 I 3 d 6 d 7 l 4 l 1 0,750 19,05 34 38 30,5 29,5 35 11,5 42 0,875 22,23 39 43 28,5 33,5 39 11,5 40 1,000 25,40 39,6 43,6 28,5 34,5 40 11,5 40 1,125 28,58 42,8 46,8 31 37,5 43 11,5 42,5 1,250 31,75 46 50 31 42,5 48 11,5 42,5 1,375 34,93 49,2 53,2 31 44,5 50 11,5 42,5 1,500 38,10 52,5 56,5 31 49,5 56 14 45 1,625 41,28 55,5 59,5 31 54,5 61 14 45 1,750 44,45 59,5 63,5 31 56,5 63 14 45 1,875 47,63 62,5 66,5 31 59,5 66 14 45 2,000 50,80 65 69 32,5 62,5 70 15 47,5 2,125 53,98 68,2 72,2 32,5 67,5 75 15 47,5 2,250 57,15 71,7 75,7 37,5 70,5 78 15 52,5 2,375 60,33 75 79 37,5 72,5 80 15 52,5 2,500 63,50 79 83 37,5 75,5 83 15 52,5 2,625 66,68 84,1 88,1 34,5 81,5 90 18 52,5 2,750 69,85 87,3 91,3 42 83,5 92 18 60 2,875 73,03 92 96 42 88,5 97 18 60 3,000 76,20 95 99 42 88,5 97 18 60 3,125 79,38 98,4 102,4 41,8 95,5 105 18,2 60 3,250 82,55 101,6 105,6 41,8 100,5 110 18,2 60 3,375 85,73 104,7 108,7 41,8 100,5 110 18,2 60 3,500 88,90 108 112 46,8 105,5 115 18,2 65 3,625 92,08 111 115 46,8 105,5 115 18,2 65 3,750 95,25 114 118 47,8 110,5 120 17,2 65 3,875 98,43 117,5 121,5 47,8 115,5 125 17,2 65 4,000 101,60 120 125 47,8 115,5 125 17,2 65 20 33,5 37,5 30,5 22 36,5 40,5 30,5 24 39,6 43 28,5 25 39,6 43 28,5 28 42,8 46,8 31 30 45 49 31 32 46 50 31 33 48 52 31 35 49,2 63,2 31 38 52,3 56,3 31 40 55,5 59,5 31 43 57,5 61,5 31 45 58,7 62,7 31 48 63 67 31 50 65 69 32,5 53 68,2 72,2 32,5 55 70 74 32,5 58 71,7 75,7 37,5 60 74,6 78,6 37,5 63 79 83 37,5 65 84,1 88,1 37,5 68 87,3 91,3 34,5 70 87,3 91,3 42 75 95 99 42 80 98,4 102,4 41,8 85 104,7 108,7 41,8 90 111 115 46,8 95 114 118 47,8 100 120 125 47,8 Shaft Rotary part mm d 3 d 4 I 3 Dimensions subject to changes or modifications.