Welcome: Siyoseal (shenzhen) Technology Co.,Ltd
A PTFE sealing ring energized by an O-ring is designed for bi-directional pressurization, pneumatic pistons, such as in control cylinders, in quick acting cylinders, and servo-assisted equipment. It is dedicated for assembly on an integral piston to serve as a high extrusion resistance but very low sliding friction sealing in pneumatic applications.
Application range
Pressure: ≤16BAR
Temperature: -60~+200℃
Speed: ≤4m/s
Material: Bronze filled PTFE
*Other materials are available for specified conditions
Guidelines for the Selection of Special Sizes
| Piston diameter | Groove bottom | Groove width | Radius | Gap | Gland code | O-ring C.S. |
| φDa | φDi | L | R | T | ||
| 4~15.9 | Di-4.0 | 2.0 | 0.5 | 0.2 | A | 1.78 |
| 16~26.9 | Di-6.0 | 2.85 | 0.5 | 0.25 | B | 2.62 |
| 27~49.9 | Di-7.5 | 3.8 | 0.5 | 0.25 | C | 3.53 |
| 50~129.0 | Di-12.5 | 5.6 | 0.9 | 0.5 | D | 5.33 |
| 130~179.9 | Di-15.0 | 7.55 | 0.9 | 0.5 | E | 6.99 |
| 180~239.9 | Di-18.0 | 7.55 | 0.9 | 0.75 | F | 6.99 |
| 240~420 | Di-24.0 | 7.55 | 0.9 | 1.0 | G | 6.99 |
How to order
Mobile：+86-13715124957
Email: [email protected]
Whatsapp: +86-13715124957
