Hydraulic Cylinder PTFE Bronze Piston Seal/SPGO NBR/FKM O Ring
SPGO
Quantity:
1. Application and properties
Suitable for double-acting piston seals, especially for medium to heavy-duty quick response hydraulic cylinders in control, machine tool and construction machinery.
It has low friction coefficient, wear resistance and long service life.
It can adapt to a wide range of working media and working temperature range by changing the material of O-ring. It can be used for special working conditions such as extremely high speed, extremely low speed without crawling phenomenon.
It is suitable for integral piston and the installation groove is small, which is conducive to design cylinder size.
Compliant with GB/T 15242.1-94 and GB/T 15242.3-94 standards.
Good extrusion resistance and larger installation clearance than general seals.
2. Standard material
Sealing ring: filled PTFE
O-Ring: NBR / FKM
3. Working Conditions
Working Conditions | ||||
Diameter Range | Pressure Range | Temperature Range°C | Speed | Medium |
40~2000mm | 0~35MPa | -30~100(NBR) -20~160(FKM) | 1.5m/s | Hydraulic oil, flame retardant liquid, water |

4. Related Dimensions:
R1=0.2~0.8,R2=0.5~1;C=(0.5~1.0)L;The specific values are selected according to the section size of the seal. The re。The remaining values refer to “Installation Dimensions table”
5. Marking method:
Mark it with the dimensions of Installation groove
For example: The standad φ100 SPGO ring is marked as SPGO100×6.3
6. Installation Dimensions
| Bore | Groove | Part No. | O-ring | Bore | Groove | Part No. | O-ring | |
| Dia | Dia. | Dimensions | Dia | Dia. | Dimensions | |||
| D | L | dn×d1 | D | L | dn×d1 | |||
| 60 | 6.3 | SPGO60*6 | 43.5*5.3 | 95 | 8.1 | SPGO95*7.9 | 71.0*6.99 | |
| 65 | 6.3 | SPGO65*6 | 48.0*5.3 | 100 | 8.1 | SPGO100*7.9 | 77.5*6.99 | |
| 70 | 6.3 | SPGO70*6 | 53.0*5.3 | 105 | 8.1 | SPGO105*7.9 | 82.0*6.99 | |
| 75 | 6.3 | SPGO75*6 | 58.0*5.3 | 110 | 8.1 | SPGO110*7.9 | 86.0*6.99 | |
| 80 | 6.3 | SPGO80*6 | 63.0*5.3 | 115 | 8.1 | SPGO115*7.9 | 92.0*6.99 | |
| 85 | 6.3 | SPGO85*6 | 67.0*5.3 | 120 | 8.1 | SPGO120*7.9 | 97.0*6.99 | |
| 90 | 6.3 | SPGO90*6 | 73.0*5.3 | 125 | 8.1 | SPGO125*7.9 | 103.0*6.99 | |
| 95 | 6.3 | SPGO95*6 | 77.5*5.3 | 130 | 8.1 | SPGO130*7.9 | 107.0*6.99 | |
| 100 | 6.3 | SPGO100*6 | 83.0*5.3 | 135 | 8.1 | SPGO135*7.9 | 112.0*6.99 | |
| 105 | 6.3 | SPGO105*6 | 87.5*5.3 | 140 | 8.1 | SPGO140*7.9 | 117.0*6.99 | |
| 110 | 6.3 | SPGO110*6 | 92.5*5.3 | 145 | 8.1 | SPGO145*7.9 | 122.0*6.99 | |
| 115 | 6.3 | SPGO115*6 | 97.5*5.3 | 150 | 8.1 | SPGO150*7.9 | 126.37*6.99 | |
| 120 | 6.3 | SPGO120*6 | 103.0*5.3 | 155 | 8.1 | SPGO155*7.9 | 132.0*6.99 | |
| 125 | 6.3 | SPGO125*6 | 108.0*5.3 | 160 | 8.1 | SPGO160*7.9 | 136.0*6.99 | |
| 130 | 6.3 | SPGO130*6 | 112.0*5.3 | 165 | 8.1 | SPGO165*7.9 | 142.24*6.99 | |
| 135 | 6.3 | SPGO135*6 | 118.0*5.3 | 170 | 8.1 | SPGO170*7.9 | 145.42*6.99 | |
| 140 | 6.3 | SPGO140*6 | 123.19*5.3 | 175 | 8.1 | SPGO175*7.9 | 152.0*6.99 | |
| 145 | 6.3 | SPGO145*6 | 128.0*5.3 | 180 | 8.1 | SPGO180*7.9 | 157.5*6.99 | |
| 150 | 6.3 | SPGO150*6 | 132.72*5.3 | 185 | 8.1 | SPGO185*7.9 | 160.0*6.99 | |
| 155 | 6.3 | SPGO155*6 | 138.0*5.3 | 190 | 8.1 | SPGO190*7.9 | 165.0*6.99 | |
| 160 | 6.3 | SPGO160*6 | 142.24*5.3 | 195 | 8.1 | SPGO195*7.9 | 170.0*6.99 | |
| 165 | 6.3 | SPGO165*6 | 148.5*5.3 | 200 | 8.1 | SPGO200*7.9 | 177.17*6.99 | |
| 170 | 6.3 | SPGO170*6 | 151.77*5.3 | 210 | 8.1 | SPGO210*7.9 | 185.0*6.99 | |
| 175 | 6.3 | SPGO175*6 | 158.0*5.3 | 220 | 8.1 | SPGO220*7.9 | 197.0*6.99 | |
| 180 | 6.3 | SPGO180*6 | 164.47*5.3 | 230 | 8.1 | SPGO230*7.9 | 207.5*6.99 | |
| 185 | 6.3 | SPGO185*6 | 167.0*5.3 | 240 | 8.1 | SPGO240*7.9 | 218.0*6.99 | |
| 190 | 6.3 | SPGO190*6 | 173.0*5.3 | 250 | 8.1 | SPGO250*7.9 | 227.0*6.99 | |
| 195 | 6.3 | SPGO195*6 | 177.17*5.3 | 260 | 8.1 | SPGO260*7.9 | 237.0*6.99 | |
| 270 | 8.1 | SPGO270*7.9 | 250.0*6.99 | |||||
| 80 | 8.1 | SPGO80*7.9 | 56.0*6.99 | 280 | 8.1 | SPGO280*7.9 | 258.0*6.99 | |
| 85 | 8.1 | SPGO85*7.9 | 61.0*6.99 | 290 | 8.1 | SPGO290*7.9 | 265.0*6.99 | |
| 90 | 8.1 | SPGO90*7.9 | 66.0*6.99 | 300 | 8.1 | SPGO300*7.9 | 280.0*6.99 |