GSD

GSD is a unidirectional sealing ring for pistons, consisting of a wear-resistant filled polytetrafluoroethylene (PTFE) ring and an O-ring rubber seal. The O-ring provides elasticity and compensates for the wear of the PTFE ring, resulting in a unidirectional sealing effect. It is suitable for sealing hydraulic cylinder pistons and is commonly used in conjunction with a guide ring to enhance sealing performance.

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Introduction
Introduction
Technical information

Technical Parameters:

  • Pressure: 40 MPa
  • Speed: 5 m/s
  • Temperature: -30°C to +200°C
  • Media: Mineral hydraulic oil, fire-resistant hydraulic oil, environmentally friendly hydraulic oil, water, air, and other media, depending on the seal material

Installation Dimension:

Groove OD  Groove ID Groove Width Groove Base Radius  Radial Clearance max O Ring Section
Standard use Light-duty use Heave-duty use d h9 H+0.2 r1 10 Mpa 20 Mpa 40Mpa d0
8-16.9 17-26.9 - - D-4.9 2.2 0.4 0.30 0.20 0.15 1.78
17-26.9 27-59.9 - - D-7.3 3.2 0.6 0.40 0.25 0.15 2.62
27-59.9 60-199.9 17-26.9 D-10.7 4.2 1 0.50 0.30 0.20 3.53
60-199.9 200-255.9 27-59.9 D-15.1 6.3 1.3 0.70 0.40 0.25 5.33
200-255.9 256-669.9 60-199.9 D-20.5 8.1 1.8 0.70 0.60 0.35 7.00
256-669.9 670-999.9 200-255.9 D-24 8.1 1.8 0.90 0.70 0.40 7.00
670-999.9 ≧1000 256-669.9 D-27.3 9.5 2.5 1.00 0.80 0.50 8.40
≧1000 - - 670-999.9 D-38.0 13.8 3.0 1.20 0.90 0.60 12.00

Specification Table:

CODE D d H
GSD 8 3.1 2.2
GSD 10 5.1 2.2
GSD 12 7.1 2.2
GSD 14 9.1 2.2
GSD 16 11.1 2.2
GSD 17 9.7 3.2
GSD 18 10.7 3.2
GSD 19 11.7 3.2
GSD 20 12.7 3.2
GSD 15 7.7 3.2
GSD 16 8.7 3.2
GSD 18 10.7 3.2
GSD 20 12.7 3.2
GSD 21 13.7 3.2
GSD 22 14.7 3.2
GSD 24 16.7 3.2
GSD 25 17.7 3.2
GSD 28 17.3 4.2
GSD 30 19.3 4.2
GSD 40 29.3 4.2
GSD 42 31.3 4.2
GSD 45 34.3 4.2
GSD 48 37.3 4.2
GSD 50 39.3 4.2
GSD 52 41.3 4.2
GSD 55 44.3 4.2
GSD 60 44.9 6.3
GSD 63 47.9 6.3
GSD 65 49.9 6.3
GSD 70 54.9 6.3
GSD 75 59.9 6.3
GSD 80 64.9 6.3
GSD 50 34.9 6.3
GSD 55 39.9 6.3
GSD 60 44.9 6.3
GSD 63 47.9 6.3
GSD 65 49.9 6.3
GSD 68 52.9 6.3
GSD 70 54.9 6.3
GSD 75 59.9 6.3
GSD 80 64.9 6.3
GSD 85 69.9 6.3
GSD 90 74.9 6.3
GSD 95 79.9 6.3
GSD 100 84.9 6.3
CODE D d H
GSD 105 89.9 6.3
GSD 110 94.9 6.3
GSD 120 104.9 6.3
GSD 70 49.5 8.1
GSD 75 54.5 8.1
GSD 80 59.5 8.1
GSD 85 64.5 8.1
GSD 90 69.5 8.1
GSD 95 74.5 8.1
GSD 100 79.5 8.1
GSD 105 84.5 8.1
GSD 110 89.5 8.1
GSD 115 94.5 8.1
GSD 120 99.5 8.1
GSD 125 104.5 8.1
GSD 130 109.5 8.1
GSD 135 114.5 8.1
GSD 140 119.5 8.1
GSD 145 124.5 8.1
GSD 150 129.5 8.1
GSD 155 134.5 8.1
GSD 160 139.5 8.1
GSD 165 144.5 8.1
GSD 170 149.5 8.1
GSD 175 154.5 8.1
GSD 180 159.5 8.1
GSD 185 164.5 8.1
GSD 190 169.5 8.1
GSD 195 174.5 8.1
GSD 200 179.5 8.1
GSD 205 184.5 8.1
GSD 210 189.5 8.1
GSD 215 194.5 8.1
GSD 220 199.5 8.1
GSD 225 204.5 8.1
GSD 230 209.5 8.1
GSD 240 219.5 8.1
GSD 250 229.5 8.1
GSD 260 236 8.1
GSD 270 246 8.1
GSD 280 256 8.1
GSD 290 266 8.1
GSD 300 276 8.1
GSD 310 286 8.1
GSD 320 296 8.1

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