SPGC Combined Seal Ring Antifouling PTFE Piston Seal
SPGC
Quantity:
1. Application and properties
Installed in the O-ring groove, suitable for double-acting piston seal and static seal, especially recommended for light load and small diameter hydraulic cylinder.
It has low friction coefficient, wear resistance, and can work with or without lubrication, and can be used for oil-free lubrication cylinder sealing.
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, micro-stroke, etc.
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.
It has excellent sealing performance under various pressures, and almost no leakage.
According to the actual working pressure value, different section products should be selected. In principle, the larger the working pressure, the larger the section product should be selected. According to the size and direction of the actual working pressure of the working condition, a back-up ring can be added on one side or both sides to enhance the pressure bearing capacity.
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 |
6~2000mm | 0~15MPa | -30~100(NBR) -20~160(FKM) | 1.5m/s | Hydraulic oil, flame retardant liquid, water |

4. Related Dimensions
R2=0.5~1;C=(0.5~1.0)L;The specific values are selected according to the section size of the seal. The remaining values are listed in the table below:
| Bore | Section | O-Ring | Groove | Groove | Radial | Fillet Radius |
| Diametere | series | Cross-Section | Width | Deepth | Clearance e | Max. |
| d2 | L | L1 | e | R1 | ||
| 6~13 | A | 1.78 | 2.5 | 1.5 | 0.15 | 0.1 |
| 14~26 | B | 2.62 | 3.3 | 2 | 0.2 | 0.1 |
| 28~56 | C | 3.53 | 4.7 | 3 | 0.2 | 0.2 |
| 58~160 | D | 5.33 | 7.5 | 5 | 0.25 | 0.3 |
| 165~400 | E | 6.99 | 11 | 7.5 | 0.3 | 0.3 |
5. Marking method
Mark it with the dimensions of Installation groove
For example: The standard φ100 SPGC is marked as: SPGC100×90×7
6. Installation Dimensions
| Nominalsize | Groove | Order No. | Nominalsize | Groove | Order No. | |||||
| width | width | |||||||||
| D | d | h | L | D | d | h | L | |||
| 28 | 22 | 4.4 | 4.7 | SPGC0280 | 95 | 85 | 7 | 7.5 | SPGC0950 | |
| 28.4 | 22.4 | 4.4 | 4.7 | SPGC0284 | 100 | 90 | 7 | 7.5 | SPGC1000 | |
| 30 | 24 | 4.4 | 4.7 | SPGC0300 | 105 | 95 | 7 | 7.5 | SPGC1050 | |
| 31 | 25 | 4.4 | 4.7 | SPGC0310 | 110 | 100 | 7 | 7.5 | SPGC1100 | |
| 31.5 | 25.5 | 4.4 | 4.7 | SPGC0315 | 112 | 102 | 7 | 7.5 | SPGC1120 | |
| 34 | 28 | 4.4 | 4.7 | SPGC0340 | 115 | 105 | 7 | 7.5 | SPGC1150 | |
| 35 | 29 | 4.4 | 4.7 | SPGC0350 | 120 | 110 | 7 | 7.5 | SPGC1200 | |
| 35.5 | 29.5 | 4.4 | 4.7 | SPGC0355 | 122 | 112 | 7 | 7.5 | SPGC1220 | |
| 36 | 30 | 4.4 | 4.7 | SPGC0360 | 125 | 115 | 7 | 7.5 | SPGC1250 | |
| 37 | 31 | 4.4 | 4.7 | SPGC0370 | 130 | 120 | 7 | 7.5 | SPGC1300 | |
| 37.5 | 31.5 | 4.4 | 4.7 | SPGC0375 | 135 | 125 | 7 | 7.5 | SPGC1350 | |
| 38 | 32 | 4.4 | 4.7 | SPGC0380 | 140 | 130 | 7 | 7.5 | SPGC1400 | |
| 40 | 34 | 4.4 | 4.7 | SPGC0400 | 142 | 132 | 7 | 7.5 | SPGC1420 | |
| 41 | 35 | 4.4 | 4.7 | SPGC0410 | 145 | 135 | 7 | 7.5 | SPGC1450 | |
| 41.5 | 35.5 | 4.4 | 4.7 | SPGC0415 | 150 | 140 | 7 | 7.5 | SPGC1500 | |
| 42 | 36 | 4.4 | 4.7 | SPGC0420 | 155 | 145 | 7 | 7.5 | SPGC1550 | |
| 44 | 38 | 4.4 | 4.7 | SPGC0440 | 160 | 150 | 7 | 7.5 | SPGC1600 | |
| 45 | 39 | 4.4 | 4.7 | SPGC0450 | 165 | 150 | 10.5 | 11 | SPGC1650 | |
| 46 | 40 | 4.4 | 4.7 | SPGC0460 | 170 | 155 | 10.5 | 11 | SPGC1700 | |
| 47 | 41 | 4.4 | 4.7 | SPGC0470 | 175 | 160 | 10.5 | 11 | SPGC1750 | |
| 48 | 42 | 4.4 | 4.7 | SPGC0480 | 180 | 165 | 10.5 | 11 | SPGC1800 | |
| 50 | 44 | 4.4 | 4.7 | SPGC0500 | 185 | 170 | 10.5 | 11 | SPGC1850 | |
| 51 | 45 | 4.4 | 4.7 | SPGC0510 | 190 | 175 | 10.5 | 11 | SPGC1900 | |
| 52 | 46 | 4.4 | 4.7 | SPGC0520 | 195 | 180 | 10.5 | 11 | SPGC1950 | |
| 54 | 48 | 4.4 | 4.7 | SPGC0540 | 200 | 185 | 10.5 | 11 | SPGC2000 | |
| 55 | 49 | 4.4 | 4.7 | SPGC0550 | 205 | 190 | 10.5 | 11 | SPGC2050 | |
| 56 | 50 | 4.4 | 4.7 | SPGC0560 | 210 | 195 | 10.5 | 11 | SPGC2100 | |
| 58 | 48 | 7 | 7.5 | SPGC0580 | 215 | 200 | 10.5 | 11 | SPGC2150 | |
| 60 | 50 | 7 | 7.5 | SPGC0600 | 220 | 205 | 10.5 | 11 | SPGC2200 | |
| 62 | 52 | 7 | 7.5 | SPGC0620 | 224 | 209 | 10.5 | 11 | SPGC2240 | |
| 63 | 53 | 7 | 7.5 | SPGC0630 | 225 | 210 | 10.5 | 11 | SPGC2250 | |
| 65 | 55 | 7 | 7.5 | SPGC0650 | 230 | 215 | 10.5 | 11 | SPGC2300 | |
| 66 | 56 | 7 | 7.5 | SPGC0660 | 235 | 220 | 10.5 | 11 | SPGC2350 | |
| 68 | 58 | 7 | 7.5 | SPGC0680 | 235 | 220 | 10.5 | 11 | SPGC2350 | |
| 70 | 60 | 7 | 7.5 | SPGC0700 | 240 | 225 | 10.5 | 11 | SPGC2400 | |
| 72 | 62 | 7 | 7.5 | SPGC0720 | 245 | 230 | 10.5 | 11 | SPGC2450 | |
| 73 | 63 | 7 | 7.5 | SPGC0730 | 250 | 235 | 10.5 | 11 | SPGC2500 | |
| 75 | 65 | 7 | 7.5 | SPGC0750 | 255 | 240 | 10.5 | 11 | SPGC2550 | |
| 77 | 67 | 7 | 7.5 | SPGC0770 | 260 | 245 | 10.5 | 11 | SPGC2600 | |
| 80 | 70 | 7 | 7.5 | SPGC0800 | 265 | 250 | 10.5 | 11 | SPGC2650 | |
| 81 | 71 | 7 | 7.5 | SPGC0810 | 270 | 255 | 10.5 | 11 | SPGC2700 | |
| 85 | 75 | 7 | 7.5 | SPGC0850 | 275 | 260 | 10.5 | 11 | SPGC2750 | |
| 90 | 80 | 7 | 7.5 | SPGC0900 | ||||||