The SPG piston seal consists of a low-friction filled PTFE ring and a square rubber sealing ring.
The square rubber ring provides sufficient sealing preload and compensates for PTFE wear.
With a low coefficient of friction and almost equal static and dynamic friction, SPG piston seal ensures smooth and reliable performance.
Materials
| Slide ring | Elastomer | Backup ring | |
| Standard | PTFE filled bronze | NBR/PU80 | POM |
| Special (on request) | PTFE filled carbon fiber | FKM brown | Nylon |
Features
- Excellent dynamic and static sealing performance
- Safe to use in contaminated media due to larger extrusion clearance
- Allows relatively large extrusion gaps
- Low friction, no stick-slip phenomenon
- Wide adaptability to different working conditions
Installation Profile
SPG Piston Seal Specification Table (mm)
| Part No. | ID(d) | OD(D) | Thickness(H) |
| SPG-30 | 30 | 20.5 | 4.3 |
| SPG-35 | 35 | 25.5 | 4.3 |
| SPG-40 | 40 | 30 | 4.3 |
| SPG-45 | 45 | 35 | 4.3 |
| SPG-50 | 50 | 40 | 4.3 |
| SPG-54 | 54 | 44 | 4.3 |
| SPG-55 | 55 | 45 | 4.3 |
| SPG-56 | 56 | 46 | 4.3 |
| SPG-60 | 60 | 50 | 4.3 |
| SPG-63 | 63 | 48 | 7.3 |
| SPG-65 | 65 | 50 | 7.3 |
| SPG-69 | 69 | 54 | 7.3 |
| SPG-70 | 70 | 55 | 7.3 |
| SPG-75 | 75 | 60 | 7.3 |
| SPG-80 | 80 | 65 | 7.3 |
| SPG-85 | 85 | 70 | 7.3 |
| SPG-90 | 90 | 75 | 7.3 |
| SPG-95 | 95 | 80 | 7.3 |
| SPG-100 | 100 | 85 | 7.3 |
| SPG-108 | 108 | 92 | 7.3 |
| SPG-110 | 110 | 94 | 7.3 |
| SPG-112 | 112 | 96 | 7.3 |
| SPG-120 | 120 | 104 | 7.3 |
| SPG-125 | 125 | 109 | 7.3 |
| SPG-130 | 130 | 114 | 7.3 |
| SPG-135 | 135 | 119 | 7.3 |
| SPG-140 | 140 | 124 | 7.3 |
| SPG-145 | 145 | 129 | 7.3 |
| SPG-150 | 150 | 134 | 7.3 |
| SPG-155 | 155 | 139 | 7.3 |
| SPG-160 | 160 | 144 | 7.3 |
| SPG-170 | 170 | 148 | 10.8 |
| SPG-180 | 180 | 158 | 10.8 |
| SPG-190 | 190 | 168 | 10.8 |
| SPG-200 | 200 | 178 | 10.8 |
Contact us today to request a quote for more details and customized sizes!
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