• February 16. 2022

For the installation and assembly of step seal, first install the O-ring, and then install the wear ring of step seal. First heat the wear ring, put it on the shaft, and then cool it. When installing the wear ring, first press the wear ring inward along the diameter direction, then install the wear ring into the groove, and then smooth the deformation. For installation in northern winter, the wear...

• December 06. 2024

(I)Combined seals 1.Step seal: The Step seal structure is similar to that of the Glyd ring, and is composed of an O-type rubber seal and a special rectangular or trapezoidal seal filled with polytetrafluoroethylene. Step seals can be divided into hole seals and shaft seals, which only have a one-way sealing effect. Step seals are characterized by low friction, no creeping, and long service life. I...

• April 14. 2025

The SPNS (Step Seal with PTFE and O-Ring Energizer) is a static hydraulic rod seal installed in gland housings to prevent fluid leakage during rod reciprocation. Its design includes: PTFE Slip Ring: Provides ultra-low friction, chemical resistance, and thermal stability. Elastomeric Expansion Ring (O-Ring): Compensates for PTFE’s rigidity by supplying elasticity and initial sealing force. Bronze-F...