Home > Products > Piston Seals > BSF
BSF piston seals have designs in 2 parts consisting of special compound PTFE ring and O-ring used as pressure ring. This design is suitable up to a pressure of 400 bar in double acting cylinders.  The advantages compared with other sealing systems are linear velocity reaching at 5 m/s, non-stick slip feature in long static use, low friction endurance, durability against high temperatures and big variety of chemical liquids, providing piston as one part and small.  By using O-ring, used as pressure ring, in different combinations it is possible to solve all sorts of problems.          

Technical Data   
Pressure:  400 bar   
Temperature:  with NBR O-ring: -35  to +105  
                        with FKM O-ring: -35 to +200   
Speed: 5m/s    
Media: Hydraulic oils (mineral oil-based)    
Material: Almost all media   O-ring: NBR/FKM   
Color: Green/Brown   O-ring: Black/Brown   
High static and dynamic sealing effect   
Low friction, high efficiency   
Stick-slip free starting, no sticking   
Easy installation   

Copyright © 2019 By Zhejiang Sanmen Seals Factory All Rights Reserved.  浙ICP备11063679号-1 浙公网安备 33102202000448号