OEM Rubber NBR O Ring PTFE Bronze Piston Ring SPG
SPG
Quantity:
1.Application and properties:
Suitable for double-acting piston seals, especially for heavy-duty quick response hydraulic cylinders with
maximum working pressure of about 20-30 MPa.
It has a small friction coefficient, wear resistance, and long service life. The adaptability and working temperature range of the working medium can be changed by replacing the material of the square ring.
It can be used in special working conditions such as extremely high speed and extremely low speed.
Suitable for integrated pistons, and the installation groove is small, which is conducive to designe cylinder size.
Compliant with GB/T 15242.1-94 and GB/T 15242.3-94 standards.
Good extrusion resistance and a larger installation clearance than general sealing components.
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 |
9~2000mm | 0~40MPa | -30~100(NBR) -20~160(FKM) | 1.5m/s | Hydraulic oil, flame retardant liquid, water |

4. Related Dimensions:
R1=0.2~0.5;R2=0.5~1;e=0.1~0.8;C=(0.5~1.0)L;The specific values are selected according to the section size of the seal.
5. Marking method:
Mark it with the dimensions of Installation groove
For example: The standard φ100 SPG seal is marked as: SPG100×85×7.5
6. Installation Dimensions
| Installation Dimentsions | Part No. | Installation Dimentsions | Part No. | |||||
| D | d | L | D | d | L | |||
| 30 | 20.5 | 4.5 | SPG0300 | 155 | 139 | 7.5 | SPG1550 | |
| 31.5 | 22 | 4.5 | SPG0315 | 160 | 144 | 7.5 | SPG1600 | |
| 32 | 22.5 | 4.5 | SPG0320 | 170 | 148 | 11 | SPG1700 | |
| 35 | 25.5 | 4.5 | SPG0350 | 180 | 158 | 11 | SPG1800 | |
| 35.5 | 26 | 4.5 | SPG0355 | 190 | 168 | 11 | SPG1900 | |
| 40 | 30 | 4.5 | SPG0400 | 200 | 178 | 11 | SPG2000 | |
| 45 | 35 | 4.5 | SPG0450 | 210 | 188 | 11 | SPG2100 | |
| 50 | 40 | 4.5 | SPG0500 | 215 | 193 | 11 | SPG2150 | |
| 55 | 45 | 4.5 | SPG0550 | 220 | 198 | 11 | SPG2200 | |
| 56 | 46 | 4.5 | SPG0560 | 230 | 208 | 11 | SPG2300 | |
| 60 | 50 | 4.5 | SPG0600 | 240 | 218 | 11 | SPG2400 | |
| 63 | 48 | 7.5 | SPG0630 | 250 | 228 | 11 | SPG2500 | |
| 65 | 50 | 7.5 | SPG0650 | 260 | 236 | 12 | SPG2600 | |
| 69 | 54 | 7.5 | SPG0690 | 270 | 246 | 12 | SPG2700 | |
| 70 | 55 | 7.5 | SPG0700 | 280 | 256 | 12 | SPG2800 | |
| 71 | 56 | 7.5 | SPG0710 | 290 | 266 | 12 | SPG2900 | |
| 75 | 60 | 7.5 | SPG0750 | 300 | 276 | 12 | SPG3000 | |
| 80 | 65 | 7.5 | SPG0800 | 310 | 286 | 12 | SPG3100 | |
| 85 | 70 | 7.5 | SPG0850 | 320 | 296 | 12 | SPG3200 | |
| 90 | 75 | 7.5 | SPG0900 | 330 | 308 | 10 | SPG3300 | |
| 95 | 80 | 7.5 | SPG0950 | 360 | 336 | 12 | SPG3600 | |
| 100 | 85 | 7.5 | SPG1000 | 400 | 376 | 12 | SPG4000 | |
| 105 | 90 | 7.5 | SPG1050 | 485 | 455 | 15 | SPG4850 | |
| 108 | 92 | 7.5 | SPG1080 | 500 | 470 | 15 | SPG5000 | |
| 110 | 94 | 7.5 | SPG1100 | 550 | 515 | 17.5 | SPG5500 | |
| 112 | 96 | 7.5 | SPG1120 | 600 | 570 | 15 | SPG6000 | |
| 120 | 104 | 7.5 | SPG1200 | 650 | 620 | 15 | SPG6500 | |
| 125 | 109 | 7.5 | SPG1250 | 720 | 690 | 15 | SPG7200 | |
| 130 | 114 | 7.5 | SPG1300 | 800 | 785 | 13 | SPG8000 | |
| 135 | 119 | 7.5 | SPG1350 | 900 | 870 | 25 | SPG9000 | |
| 140 | 124 | 7.5 | SPG1400 | 930 | 890 | 20 | SPG9300 | |
| 145 | 129 | 7.5 | SPG1450 | 950 | 925 | 18 | SPG9500 | |
| 150 | 134 | 7.5 | SPG1500 | 1000 | 960 | 20 | SPG10000 | |