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DMU202 Series

        YM U202 series seal is a modified type of 102 series, which is of multi-spring, double face and non-equilibrium structure. Only using a set of springs, it is of compact structure and can be easily installed. It is applicable for rotary shaft seal in pump which conveys corrosive and crystallized mediums containing granules or fiber. The seal cavity should have recycleliquid and cooling liquid inside so as to lubricate the friction ring and the pressure should be less than 1 MPa.

Applicable range:
¡ó Medium: Common corrosive mediums, such as water, oil
¡ó Pressure:¡Ü1.0 MPa
¡ó Temperature:-20~180¡æ
¡ó  Speed:¡Ü3000 rpm

 
1¡¢Stationary seat 2¡¢Stationary O ring 3¡¢Stationary 4¡¢Moving ring 5¡¢Collar
6¡¢Moving seat 7¡¢Spring 8¡¢Fixed seat 9¡¢Moving O ring

Model d d1 D D1 D2 L L1 L2 L3
U202-20 20 21 29 35 38 77 19 19 7
U202-25 25 26 34 40 43 77 19 19 7
U202-30 30 31 39 45 48 80 19 19 7
U202-35 35 36 44 50 53 80 20 20 7
U202-40 40 41 51 58 61 85 20 20 7
U202-45 45 46 56 63 66 85 20 20 7
U202-50 50 51 62 70 73 88 21 21 7
U202-55 55 56 67 75 78 88 21 21 7
U202-60 60 61 72 80 83 100 22 22 7
U202-65 65 66 77 85 88 100 22 22 7
U202-70 70 71 83 92 95 108 25 25 7
U202-75 75 76 88 97 100 108 25 25 7
U202-80 80 81 95 105 108 108 25 25 7
U202-85 85 86 100 110 113 108 26 26 7
U202-90 90 91 105 115 118 108 26 26 7
U202-95 95 96 110 120 123 108 26 26 7
U202-100 100 102 115 125 128 108 26 26 7
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