FSKR-O Low Temperaturer Peek Spring Loaded Seals for Hydraylic Joints
FSKR-O
Quantity:
1. Application and properties
Suitable for reciprocating piston rod or piston single-acting sealing and has good sealing performance at high, medium and low pressure.
The working pressure range is broad. Pressure resistance can be enhanced by adding a back-up ring
The friction coefficient is small, the friction with the matching surface is small and it can work with or without lubrication. It has good wear resistance and long life
The working medium of the sealing sleeve is widely adaptable, and other chemicals do not react with it except soluble alkali metal, high temperature fluorine gas and chlorine trifluoride.
Operating temperature range from -200°C to +250°C.
It can be used for special conditions such as vacuum, low temperature, static sealing, extremely low speed, and small stroke.
Suitable for aviation, military and industrial sealing groove size. Small installation groove and the groove is open or semi-open.
2. Standard Material
Sealing ring: filled PTFE
Spring: SUS301, 302, 304, 316 or 718. Default use SUS301, please specify if there are special requirment/103A
3. Working conditions
Working Conditions | ||||
Diameter Range | Pressure Range | Temperature Range°C | Speed | Medium |
2～2000mm | 0～80MPa | -200～250℃ | 0.5m/s | High and low temperature oil water, Steam and other fluids |
4. Related Dimensions
R1=0.1～0.2; R2=0.3～0.5; C=(0.5～1)L; The specific values are selected according to the section size of the seal. The remaining values are listed in the table below:
| Rod | Groove | Groove | Radial |
| Diameter | Width | Diameter | Clearance e |
| d | L | D | e |
| 2～10 | 2.5 | d+3.0 | 0.050 |
| 10～22 | 3.2 | d+4.0 | 0.065 |
| 22～52 | 4.7 | d+6.0 | 0.075 |
| 48～150 | 7.5 | d+10.0 | 0.090 |
| 150～1000 | 11 | d+15.0 | 0.100 |
5. Marking method
Mark it with the dimension of installation groove as below：
FSKR “Groove Diameter/Bore Diameter D” × “Rod Diameter d” × “Groove Width L” – “Spring” O
For example: FSKR100×90×7.5-316O means“Bore and rod dual-use variseal with O-Shape spring，Working Dimension: Rod Dia.90，Groove Dia./Bore Dia. 100，Groove Width7.5，Spring material: SUS316 O-shape
