Rod Air Seal R39


Pneumatic compact seals for compressed gases and air with small forces and fast movements
The compact design and wide operating temperature range make it an good choice for specific requirements. The rounded sealing profile gives good tightness and very good properties as wear, friction and long service life.
Specific advantages of Compact Seal R39 is that can be pressurised on both sides with grooves on the front side for pressure activation

Cylinders with short stroke
Valves for high temperature applications (FKM materials)

Standard material
Material Set Code N4188 F9727
Material base NBR FKM
Hardness 80 Shore A 80 Shore A
Pressure, Speed
Working pressure, P ≤ 1.2MPa
Running speed, v ≤ 1.0 m/s

Medium, Working Temperature
Material  Code N4188 F9727
Air, dried and de-oiled -40 to 100˚C -15 to +150˚C
Mineral greases for fitting -40 to 100˚C -15 to +150˚C
Surface quality*
Ra Rmax
Rod ≤ 4 µm < 0.5 µm
Groove base ≤ 10 µm < 0.5 µm

* tp (25% Rmax) = 50% … 90%