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SPGW is a piston T seal for reciprocating hydraulic systems. Possesses excellent performance if applied at heavy load and double sealing under high-pressure working conditions.
SPGW Piston Seal Materials:
Sealing ring: filled with polytetrafluoroethylene (F-PTFE)
Elasticity: nitrile rubber (NBR)
Backup ring: modified polyoxymethylene (POM) or modified nylon (PA)
SPGW Piston Seals Features:
Excellent sealing performance in both dynamic and static conditions
Allows for larger extrusion gaps, reducing processing costs depending on the application
Can be safely used in media with contaminants due to the larger extrusion gaps
Low friction and no crawling phenomenon
Simple groove design, suitable for integral pistons
For special requirements, please contact the TYS team.
SPGW Piston Seals Application :
The T seals of SPGW piston seals excel in hydraulic systems and reciprocating motion applications, particularly in heavy-duty, bi-directional piston sealing scenarios under high-pressure, low-pressure, and high-frequency conditions. They are suitable for both long and short strokes and can accommodate larger piston clearances in situations involving a wide range of fluids and high temperatures. They are primarily used for piston sealing in heavy-duty or construction machinery, offering excellent leak control, extrusion resistance, and durability, such as in excavators and heavy hydraulic cylinders.
The SPGW Piston Seal is fit for high temperature, almost fluid medium, and long stroke. Applicable for bigger piston gaps. Simple groove structure…
Groove OD | Groove ID | Groove Width | Seal’s Width | Radial Clearance Max.E | |
D (H9) | d(h9) | H+0.2 | h | 32Mpa | 50Mpa |
50-60 | D-14 | 9 | 8.5 | 0.54 | 0.39 |
63-95 | D-15 | 11 | 10.5 | 0.8 | 0.42 |
100-120 | D-15 | 12.5 | 12 | 0.8 | 0.42 |
125-240 | D-23 | 16 | 15.5 | 0.79 | 0.44 |
≥250 | D-28 | 17.5 | 17 | 0.83 | 0.47 |
CODE | Nominal Size of Seal | H | ||
D | d | h | ||
SPGW-50 | 50 | 36 | 8.5 | 9.0 |
SPGW-55 | 55 | 41 | 8.5 | 9.0 |
SPGW-60 | 60 | 46 | 8.5 | 9.0 |
SPGW-63 | 63 | 48 | 10.5 | 11.0 |
SPGW-65 | 65 | 50 | 10.5 | 11.0 |
SPGW-70 | 70 | 55 | 10.5 | 11.0 |
SPGW-75 | 75 | 60 | 10.5 | 11.0 |
SPGW-80 | 80 | 65 | 10.5 | 11.0 |
SPGW-85 | 85 | 70 | 10.5 | 11.0 |
SPGW-90 | 90 | 75 | 10.5 | 11.0 |
SPGW-95 | 95 | 80 | 10.5 | 11.0 |
SPGW-100 | 100 | 85 | 12.0 | 12.5 |
SPGW-105 | 105 | 90 | 12.0 | 12.5 |
SPGW-110 | 110 | 95 | 12.0 | 12.5 |
SPGW-115 | 115 | 100 | 12.0 | 12.5 |
SPGW-120 | 120 | 105 | 12.0 | 12.5 |
SPGW-125 | 125 | 102 | 15.5 | 16.0 |
SPGW-130 | 130 | 107 | 15.5 | 16.0 |
SPGW-135 | 135 | 112 | 15.5 | 16.0 |
SPGW-140 | 140 | 117 | 15.5 | 16.0 |
SPGW-145 | 145 | 122 | 15.5 | 16.0 |
SPGW-150 | 150 | 127 | 15.5 | 16.0 |
SPGW-155 | 155 | 132 | 15.5 | 16.0 |
SPGW-160 | 160 | 137 | 15.5 | 16.0 |
SPGW-165 | 165 | 142 | 15.5 | 16.0 |
SPGW-170 | 170 | 147 | 15.5 | 16.0 |
SPGW-175 | 175 | 152 | 15.5 | 16.0 |
SPGW-180 | 180 | 157 | 15.5 | 16.0 |
SPGW-185 | 185 | 162 | 15.5 | 16.0 |
CODE | Nominal Size of Seal | H | ||
D | d | h | ||
SPGW-190 | 190 | 167 | 15.5 | 16.0 |
SPGW-195 | 195 | 172 | 15.5 | 16.0 |
SPGW-200 | 200 | 177 | 15.5 | 16.0 |
SPGW-205 | 205 | 182 | 15.5 | 16.0 |
SPGW-210 | 210 | 187 | 15.5 | 16.0 |
SPGW-215 | 215 | 192 | 15.5 | 16.0 |
SPGW-220 | 220 | 197 | 15.5 | 16.0 |
SPGW-225 | 225 | 202 | 15.5 | 16.0 |
SPGW-230 | 230 | 207 | 15.5 | 16.0 |
SPGW-240 | 240 | 217 | 15.5 | 16.0 |
SPGW-250 | 250 | 222 | 17.0 | 17.5 |
SPGW-260 | 260 | 232 | 17.0 | 17.5 |
SPGW-270 | 270 | 242 | 17.0 | 17.5 |
SPGW-280 | 280 | 252 | 17.0 | 17.5 |
SPGW-290 | 290 | 262 | 17.0 | 17.5 |
SPGW-300 | 300 | 272 | 17.0 | 17.5 |
SPGW-310 | 310 | 282 | 17.0 | 17.5 |
SPGW-320 | 320 | 292 | 17.0 | 17.5 |
Inch size (in) | ||||
SPGW | 3.00 | 2.52 | 0.559 | 0.579 |
SPGW | 3.25 | 2.77 | 0.559 | 0.579 |
SPGW | 3.50 | 3.02 | 0.559 | 0.579 |
SPGW | 4.00 | 3.52 | 0.559 | 0.579 |
SPGW | 4.25 | 3.77 | 0.559 | 0.579 |
SPGW | 4.50 | 4.02 | 0.559 | 0.579 |
SPGW | 4.75 | 4.27 | 0.559 | 0.579 |
SPGW | 5.00 | 4.52 | 0.559 | 0.579 |
SPGW | 5.25 | 4.77 | 0.559 | 0.579 |
SPGW | 5.50 | 5.02 | 0.559 | 0.579 |
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