Welcome: Siyoseal (shenzhen) Technology Co.,Ltd
Piston seal is suitable for bi-directional pressurization, hydraulic cartridge and spool valves such as control cylinders, servo-controlled systems, machine tools, and construction machinery. It offers low break-out and running friction to guarantee steady movement even at low speed or intermittent but frequent reciprocating action.
Application range
Pressure: ≤400BAR
Temperature: -40~+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 | ||||
| 100bar | 200bar | 400bar | ||||||
| 8~14.9 | Di-4.9 | 2.2 | 0.5 | 0.3 | 0.2 | 0.1 | A | 1.78 |
| 15~39.9 | Di-7.5 | 3.2 | 0.5 | 0.4 | 0.25 | 0.15 | B | 2.62 |
| 40~79.9 | Di-11.0 | 4.2 | 0.5 | 0.4 | 0.25 | 0.15 | C | 3.53 |
| 80~132.9 | Di-15.5 | 6.3 | 0.9 | 0.5 | 0.3 | 0.2 | D | 5.33 |
| 133~329.9 | Di-21.0 | 8.1 | 0.9 | 0.5 | 0.3 | 0.2 | E | 6.99 |
| 330~669.9 | Di-24.5 | 8.1 | 0.9 | 0.6 | 0.35 | 0.25 | F | 6.99 |
| 670~999.9 | Di-28.0 | 9.5 | 0.9 | 0.7 | 0.4 | 0.3 | G | 8.40 |
| 1000.0+ | Di-38.0 | 13.8 | 0.9 | 0.7 | 0.4 | 0.3 | H | 12.00 |
How to order
Note：For bore diameter≧1000.0mm, K should be added in prefix.
e.g. for seal 1200x1162x13.8mm should be denominated as PA-K1200-02T-1-H.
Mobile：+86-13715124957
Email: [email protected]
Whatsapp: +86-13715124957
