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Teflon PTFE Bellow Seals T11T12 with Corrosion Resistance for John Crane 10T/10R

ptfe bellow seal
Teflon PTFE Bellow Seals T11T12
Replacement for:
  • John Crane 10T
  • John Crane 10R
Features:
  • PTFE Bellow Seal
  • Corrosion resistance
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Performance Capabilities of Teflon PTFE Bellow Seals T11 T12

  • Temperature: 120℃ max.
  • Pressure: Up to 0.5 bar
  • Speed: Up to 10 m/s
  • End play/axial float allowance ±0.1mm

Sizes of Teflon PTFE Bellow Seals T11 T12

16mm to 100mm
0.75” to 4”

Materials Combination of Teflon PTFE Bellow Seals T11 T12

  • Face: PTFE glass fiber, Carbon, SiC, TC
  • Seat: Ceramic, SiC, TC
  • Bellow: PTFE
  • Spring: SS316, Hastelloy C
  • Metal parts: SS304, SS316

Specification of Teflon PTFE Bellow Seals T11 T12

PTFE Bellow Mechanical Seals by Size d D D1 D2 L1 L2 L3
T12-16 16 54 48 36.51  8 31 4.8 
T12-18 18 54 48 36.51  8 31 4.8 
T12-20 20 57 51 39.69  8 31 4.8 
T12-22 22 57 51 39.69  8 31 4.8 
T12-24 24 61 54 42.86  8 33 4.8 
T12-25 25 61 54 42.86  8 33 4.8 
T12-28 28 67 65 50.80  11 36 8.0 
T12-30 30 70 68 53.98  11 37 8.0 
T12-32 32 70 68 53.98  11 37 8.0 
T12-33 33 73 71 57.15  11 38 8.0 
T12-35 35 73 71 57.15  11 38 8.0 
T12-38 38 76 78 63.50  11 38 8.0 
T12-40 40 80 81 66.68  11 40 8.0 
T12-43 43 83 84 69.85  11 40 8.0 
T12-45 45 83 84 69.85  11 40 8.0 
T12-48 48 89 97 79.38  14.3 43 9.5 
T12-50 50 89 97 79.38  14.3 43 9.5 
T12-53 53 103 100 82.55  14.3 53 9.5 
T12-55 55 107 103 85.73  14.3 53 9.5 
T12-58 58 110 106 88.90  14.3 53 9.5 
T12-60 60 110 106 88.90  14.3 53 9.5 
T12-63 63 113 110 92.08  14.3 53 9.5 
T12-65 65 116 113 95.25  14.3 53 9.5 
T12-68 68 118 116 98.43  14.3 53 9.5 
T12-70 70 118 116 98.43  14.3 53 9.5 
T12-75 75 126 121 103.19  14.3 53 9.5 
T12-80 80 150 132 114.30  14.3 73 9.5 
T12-85 85 156 138 120.65  14.3 73 9.5 
T12-90 90 163 144 127.00  14.3 73 9.5 
T12-95 95 163 144 127.00  14.3 73 9.5 
T12-100 100 169 151 133.35  14.3 73 9.5 

PTFE Bellow Mechanical Seals by Size d D D1 D2 L1 L2 L3
T12-0.75" 19.0  54  48  36.51  8 31  4.8 
T12-0.875" 22.2  57  51  39.69  8 31  4.8 
T12-1" 25.4  61  54  42.86  8 33  4.8 
T12-1.125" 28.5  67  65  50.86  11 36  8.0 
T12-1.25" 31.7  70  68  53.98  11 37  8.0 
T12-1.375" 34.9  73  71  57.15  11 38  8.0 
T12-1.5" 38.1  76  78  63.50  11 38  8.0 
T12-1.625" 41.2  80  81  66.68  11 40  8.0 
T12-1.75" 44.4  83  84  69.85  11 40  8.0 
T12-1.875" 47.6  86  87  73.03  11 43  8.0 
T12-2" 50.8  89  97  79.38  14.3 43  9.5 
T12-2.125" 53.9  103  100  82.55  14.3 53  9.5 
T12-2.25" 57.1  107  103  85.73  14.3 53  9.5 
T12-2.375" 60.3  110  106  88.90  14.3 53  9.5 
T12-2.5" 63.5  113  110  92.08  14.3 53  9.5 
T12-2.625" 66.6  116  113  95.25  14.3 53  9.5 
T12-2.75" 69.8  118  116  98.43  14.3 53  9.5 
T12-2.875" 73.0  122  117  100.01  14.3 53  9.5 
T12-3" 76.2  126  121  103.19  14.3 53  9.5 
T12-3.25" 82.5  150  132  114.30  14.3 73  9.5 
T12-3.5" 88.9  156  138  120.65  14.3 73  9.5 
T12-3.75" 95.2  163  144  127.00  14.3 73  9.5 
T12-4" 101.6  169  151  133.35  14.3 73  9.5 


Design Drawing of Teflon PTFE Bellow Seals T11 T12

Teflon PTFE Bellow Seals T11T12
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