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B3R
The HPU rod seal B3R profile is a lip seal with oversize, related to the external diameter. Herewith a tight hold inside the groove depth will be created. This type of seal is used for high pressure hydraulic, if in case fabric reinforced seals are not sufficient enough.
MAIN ADVANTAGES ARE
- highly abrasion resistance
- very well usable with high- and pulsating pressures
- insensible against gap extrusion
- low compression set
- suitable for hardest operating conditions
- easy to install
- in pressureless state, good density
APPLICATION RANGE | |
working pressure: | ≤ 40 MPa (400 bar) |
operating temperature: | - 35 °C to + 110 °C |
sliding speed: | ≤ 0,5 m/s |
media: | Hydraulic oil on mineral oil base |
Application categories are mainly sealing of piston rods and plungers among hindered conditions with mobile and stationary hydraulic. The dimension range orientates itself mostly by its fitting guidelines according to standards of ISO 5597/I and ISO 3320.
MATERIAL
PU008 is a wear resistant polyurethane compound with a hardness of approximately 93 Shore A. Compared to other standard Polyurethane qualities the special features of this material are: low compression set results, high thermal stability, good characteristics against hydrolysis.
MOUNTING INSTRUCTIONS
To ensure a perfect function the B3R must have certain play in axial direction (look at measure scale). So that the sealing lip won?t be damaged, don't pull it over sharp edges. Normally the B3R can be installed within closed grooves. In case of extreme width of profile and diameter measures installing tools should be used. Normally the decrease fit should be laid out at H8/f7. In case of lower pressures a lager gap size on the seal back is possible.
In certain cases (high temperature, speed, specific resistance to pressure, or use of water, HFA-, HFB- fluids a.s.o.) please get in contact with our application technology.
Do you need support in selecting the right seal or do you have any questions? We will be happy to help you directly!