The Axial Step Combined Seal consists of a right-angled sealing ring made of filled PTFE and a rubber O-ring; it is designed for unidirectional static sealing applications, such as axial (end-face) and flange seals. It features a long service life, excellent sealing performance, resistance to high and ultra-high pressures, and a compact structural footprint; it is also suitable for water-pressure sealing applications. It is available in two versions: RC2871-A (for internal pressure) and RC2871-B (for external pressure).
Effective sealing is achieved through the continuous gripping force generated by the pre-compression of the O-ring, providing a self-energizing sealing effect where sealing performance improves as the medium pressure increases. The flanged design on the side of the sealing ring effectively prevents O-ring extrusion, allowing it to easily handle high-pressure and ultra-high-pressure conditions while remaining compatible with water-pressure sealing environments.
|
Pressure (MPa) |
Temperature (°C) |
Speed (m/s) |
Medium |
|
≤300 |
-35 to +100 (with NBR O-ring) |
- |
Hydraulic oil, emulsion, water, etc. |
|
-20 to +200 (with FKM O-ring) |
This seal consists of a right-angled PTFE sealing ring and an O-ring; the O-ring provides pre-compression, generating the clamping force required to achieve a seal. Under pressure, this clamping force increases—meaning the higher the pressure, the better the sealing performance. Thanks to the slipper ring's side-flange design, the O-ring is prevented from extruding, allowing the seal to withstand high pressures.
All specifications within the parameter range are available.
|
Outer diameter range D H11 |
Groove depth h-0.05 |
Groove width L+0.2 |
Groove width L1 + 0.2 Pressure > 80 MPa |
Corner radius Rmax |
O-ring wire diameter do |
|
12~30 |
2.35 |
4.5 |
6.8 |
0.4 |
2.65 |
|
31~50 |
3.10 |
5.6 |
8.0 |
0.4 |
3.55 |
|
51~127 |
4.65 |
7.6 |
11.0 |
0.5 |
5.30 |
|
128~499 |
6.25 |
10.2 |
12.6 |
0.6 |
7.00 |
|
500~1600 |
7.5 |
12.5 |
15.0 |
0.7 |
8.60 |
All specifications within the parameter range are available.
|
Inner diameter range dh11 |
Groove depth h-0.05 |
Groove width L+0.2 |
Groove width L1 + 0.2 Pressure > 80 MPa |
Corner radius Rmax |
O-ring wire diameter do |
|
5~30 |
2.35 |
4.5 |
6.8 |
0.4 |
2.65 |
|
31~50 |
3.10 |
5.6 |
8.0 |
0.4 |
3.55 |
|
51~127 |
4.65 |
7.6 |
11.0 |
0.5 |
5.30 |
|
128~499 |
6.25 |
10.2 |
12.6 |
0.6 |
7.00 |
|
500~1600 |
7.5 |
12.5 |
15.0 |
0.7 |
8.60 |
Address
No.1 Ruichen Road, Dongliuting Industrial Park, Chengyang District, Qingdao City, Shandong Province, China
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