+86-571-86959751
sales@china-sealcon.com
en
En
Contact Us
CLOSE
Search
CLOSE

DIN Standard Double Cartridge Seals D21 with ANSI Bore Replacing Burgman Cartex DN

double cartridge mechanical seal
Double Cartridge Seals D21
Replacement for:
  • BURGMAN CARTEX DN

Features:
  • DIN standard
  • ANSI bore
Get A Quote

Performance Capabilities of Double Cartridge Seals D21

  • Temperature: -20℃ to 250℃, dependent on the elastomer
  • Pressure: Up to 25 bar
  • Speed: Up to 25 m/s
  • End play/axial float allowance ±1.0mm

Sizes of Double Cartridge Seals D21

25mm to 100mm
1” to 4”

Materials Combination of Double Cartridge Seals D21

  • Face: Carbon, SiC, TC
  • Seat: SiC, TC
  • O-rings: NBR, EPDM, VITON, Aflas, FEP, Kalrez, Chemraz etc.
  • Spring: SS316, Hastelloy C
  • Metal parts: SS316

Specification of Double Cartridge Seals D21

Double Cartridge Seals by Size d D D1 L1 L2 L3 C E
D21-25 25 43 105 53.4 33.1 25.4 62 13.2
D21-28 28 46 105 53.4 33.1 25.4 62 13.2
D21-30 30 48 105 53.4 33.1 25.4 65 13.2
D21-32 32 49.8 108 53.4 33.1 25.4 67 13.2
D21-33 33 49.8 108 53.4 33.1 25.4 67 13.2
D21-35 35 53 113 53.4 33.1 25.4 70 13.2
D21-38 38 56 123 53.4 33.1 25.4 75 14.2
D21-40 40 58 123 53.4 33.1 25.4 75 14.2
D21-42 42 60.5 133 53.4 33.1 25.4 80 14.2
D21-43 43 60.5 133 53.4 33.1 25.4 80 14.2
D21-45 45 62.5 138 53.4 33.1 25.4 81 14.2
D21-48 48 65.6 138 53.4 33.1 25.4 84 14.2
D21-50 50 68 148 53.4 33.1 25.4 87 14.2
D21-53 53 72 148 53.4 33.1 25.4 97 18
D21-55 55 73 148 53.4 33.1 25.4 90 18
D21-60 60 78 157 53.4 33.1 25.4 102 18
D21-65 65 84.8 163 53.4 33.1 25.4 109 18
D21-70 70 93 178 53.4 33.1 25.4 118 18
D21-75 75 100 190 63.9 44.1 28 129 18
D21-80 80 106.4 195 63.9 44.1 28 135 18
D21-85 85 109.5 198 63.9 44.1 28 139 22
D21-90 90 115.9 205 63.9 44.1 28 145 22
D21-95 95 119.1 208 63.9 44.1 28 148 22
D21-100 100 125.4 218 63.9 44.1 28 154 22

Double Cartridge Seals by Size d D D1 L1 L2 L3 C E
D21-1" 1 1.693 4.134 2.102 1.303 1 2.44 0.52
D21-1.125" 1.125 1.811 4.134 2.102 1.303 1 2.44 0.52
D21-1.25" 1.25 1.96 4.33 2.102 1.303 1 2.64 0.52
D21-1.375" 1.375 2.086 4.449 2.102 1.303 1 2.75 0.52
D21-1.5" 1.5 2.2 4.842 2.102 1.303 1 2.95 0.52
D21-1.625" 1.625 2.34 4.842 2.102 1.303 1 3.03 0.599
D21-1.75" 1.75 2.46 5.433 2.102 1.303 1 3.19 0.599
D21-1.875" 1.875 2.582 5.433 2.102 1.303 1 3.19 0.599
D21-2" 2 2.677 5.827 2.102 1.303 1 3.43 0.599
D21-2.125" 2.125 2.834 5.827 2.102 1.303 1 3.82 0.709
D21-2.25" 2.25 2.96 6.181 2.102 1.303 1 3.94 0.709
D21-2.375" 2.375 3.07 6.181 2.102 1.303 1 4.02 0.709
D21-2.5" 2.5 3.212 6.417 2.102 1.303 1 4.17 0.709
D21-2.625" 2.625 3.338 6.417 2.102 1.303 1 4.29 0.709
D21-2.75" 2.75 3.66 7.008 2.102 1.303 1 4.65 0.709
D21-2.875" 2.875 3.811 7.283 2.102 1.303 1 4.96 0.709
D21-3" 3 3.937 7.48 2.516 1.736 1.102 5.079 0.709
D21-3.125" 3.125 4.063 7.677 2.516 1.736 1.102 5.197 0.709
D21-3.25" 3.25 41.89 7.677 2.516 1.736 1.102 5.315 0.709
D21-3.375" 3.375 4.311 7.795 2.516 1.736 1.102 5.472 0.866
D21-3.5" 3.5 4.437 7.795 2.516 1.736 1.102 5.591 0.866
D21-3.625" 3.625 4.563 8.071 2.516 1.736 1.102 5.709 0.866
D21-3.75" 3.75 4.689 8.189 2.516 1.736 1.102 5.827 0.866
D21-4" 4 4.937 8.583 2.516 1.736 1.102 6.063 0.866


Design Drawing of Double Cartridge Seals D21

Double Cartridge Seals D21
PDF Data Sheet
PRODUCTS
LATEST NEWS & BLOGS
Contact Us
Get In Touch With SEALCON
Want the mechanical seals price list? Fill out the form and we'll get back to you ASAP.
Related Products