China Sealcon Company

Metal Bellow Mechanical Seals M21

Metal Bellow Mechanical Seals M21
  • m21-balanced-metal-bellow-seal-2.jpg
  • m21-welded-metal-bellow-seals-1_1515654266.jpg
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  • Technical Specification
  • Design Drawing

Performance Capabilities of Metal Bellow Mechanical Seals M21

  • Temperature: -40℃ to 220℃
  • Pressure: Up to 25 bar
  • Speed: Up to 20 m/s
  • End play/axial float allowance ±0.1mm

Sizes of Metal Bellow Mechanical Seals M21

16mm to 100mm

Materials Combination of Metal Bellow Mechanical Seals M21

  • Face: Carbon, SiC, TC
  • Seat: Ceramic, SiC, TC
  • O-rings: NBR, EPDM, VITON, Aflas, FEP, Kalrez, Chemraz, Grofoil etc.
  • Spring: SS316, Hastelloy C, AM350
  • Metal parts: SS316, Hastelloy C
Metal Bellow Mechanical Seals By Size  d D D1 L1 L2
M21-16 16 30 27 10 32.7
M21-18 18 32 33 11.5 30.7
M21-20 20 33.5 35 11.5 30.7
M21-22 22 36.5 37 11.5 30.7
M21-24 24 39 39 11.5 28.7
M21-25 25 39.6 40 11.5 28.7
M21-28 28 42.8 43 11.5 31.2
M21-30 30 45 45 11.5 31.2
M21-32 32 46 48 11.5 31.2
M21-33 33 48 48 11.5 31.2
M21-35 35 49.2 50 11.5 31.2
M21-38 38 52.3 56 14 31.2
M21-40 40 55.5 58 14 31.2
M21-43 43 57.5 61 14 31.2
M21-45 45 58.7 63 14 31.2
M21-48 48 61.9 66 14 31.2
M21-50 50 65 70 15 32.7
M21-53 53 68.2 73 15 32.7
M21-55 55 70 75 15 32.7
M21-58 58 71.7 78 15 37.7
M21-60 60 74.6 80 15 37.7
M21-63 63 79 83 15 37.7
M21-65 65 84.1 85 15 37.7
M21-68 68 87.3 90 18 34.7
M21-70 70 87.3 92 18 42.2
M21-75 75 95 97 18 42.2
M21-80 80 98.4 105 18.2 42
M21-85 85 104.7 110 18.2 42
M21-90 90 111 115 18.2 47
M21-95 95 114 120 17.2 48
M21-100 100 117.4 125 17.2 48
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