The SPGW piston seal is double acting piston sealing ring. Its unique geometry ensures overall stability, excellent wear resistance, reliable sealing performance, low friction, and long service life without maintenance.
With an initial interference fit, SPGW piston seal provides excellent sealing performance even at low pressure. As the pressure increases, the sealing performance is further enhanced since the elastomer applies force to the sealing ring, transforming the axial force generated by the system pressure into radial compression.
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 sealing performance in both dynamic and static conditions.
- Allows larger extrusion gaps.
- Safe to use in contaminated media due to larger extrusion tolerance.
- No stick-slip, smooth operation.
- Low friction and minimal wear.
- Long service life.
Installation Profile
Specification Table (mm)
| Part No. | ID(d) | OD(D) | Thickness(H) | Groove width(L) |
| SPGW-50 | 50 | 36 | 8.5 | 9 |
| SPGW-60 | 60 | 46 | 8.5 | 9 |
| SPGW-63 | 63 | 48 | 10.5 | 11 |
| SPGW-65 | 65 | 50 | 10.5 | 11 |
| SPGW-70 | 70 | 55 | 10.5 | 11 |
| SPGW-75 | 75 | 60 | 10.5 | 11 |
| SPGW-80 | 80 | 65 | 10.5 | 11 |
| SPGW-85 | 85 | 70 | 10.5 | 11 |
| SPGW-90 | 90 | 75 | 10.5 | 11 |
| SPGW-95 | 95 | 80 | 10.5 | 11 |
| SPGW-100 | 100 | 85 | 12 | 12.5 |
| SPGW-105 | 105 | 90 | 12 | 12.5 |
| SPGW-110 | 110 | 95 | 12 | 12.5 |
| SPGW-115 | 115 | 100 | 12 | 12.5 |
| SPGW-120 | 120 | 105 | 12 | 12.5 |
| SPGW-125 | 125 | 102 | 15.5 | 16 |
| SPGW-130 | 130 | 107 | 15.5 | 16 |
| SPGW-135 | 135 | 112 | 15.5 | 16 |
| SPGW-140 | 140 | 117 | 15.5 | 16 |
| SPGW-145 | 145 | 122 | 15.5 | 16 |
| SPGW-150 | 150 | 127 | 15.5 | 16 |
| SPGW-160 | 160 | 137 | 15.5 | 16 |
| SPGW-165 | 165 | 142 | 15.5 | 16 |
| SPGW-170 | 170 | 147 | 15.5 | 16 |
| SPGW-180 | 180 | 157 | 15.5 | 16 |
Contact us today to request a quote for more details and customized sizes of SPGW piston seal!
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