PTFE sealing set type PBS-U is designed as a two-piece assembly intended for inner sealing (rod sealing) in hydraulic cylinders.It consists of rubber ring at the outside diameter (mainly O-Ring, and rarely rectangular cross section ring), and PTFE profiled ring at the inner diameter. PTFE element is made of filled PTFE for maximum efficiency.
PTFE sealing set type PBS-U has an extremely low friction, that allows high operating speed, it is highly resistant to sudden increases in pressure of the system, and if needed highly resistant to high temperatures. The extremely compact dimensions of this sealing set allows great flexibility in the cylinder head design due to low required space for its installation. With the installation of this sealing set it`s recommended the installation of a secondary sealing element (eg, M1, M3 or P3) for the purpose of sealing the residual oil film which is common in the application of the seal set type PBS-U particularly at lower pressures.
– Filled PTFE+NBR
– Filled PTFE+FKM
APPLICATION AND PROJECTED OPERATING CONDITIONS
Working pressure: do 400 bara
Working speed: 5,0 m/s
Working temperatures: -30°C do +200°C