STK (STR Type) Hydraulic Seal For Piston
STR For Rotating Joint
S-FLON (PTFE) seals and back-up rings are combined to achieve low friction characteristic and of elimination stick slip even at low pressure/speed conditions.
Moderate sealing performance comparing with U-packings due to the PTFE plastic seals which have higher rigidity and lower elasticity than rubber materials.
Good practice is needed to prevent scars on the delicate surface of S-FLON seals.
STR type is designed for rotary joints.
- Rotary joints
- Swivel joints
- Consider adopting divided grooves if one piece groove is technically adverse.
- Note that the STK-Seals are not applicable to the part requiring strict sealing performance.Installation of the drain circuit is advisable for the prevention of the leakage.
- STK-Seals with pressure-introducing notches are also available for higher sealing properties and reliability.
- For information on preferred values of surface finish（roughness）
Hydraulic seal, STK Seal
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