Buffer Seal Set R34

DESCRIPTION

Buffer seal R34 is two-piece rod seal set consisting of profile ring made of polyurethane and an back-up ring. This seal is always used as primary rod seal in a sealing systems together with u-ring. Space between primary and secondary seal is without pressure.

APPLICATION
Specially as part of sealing system, buffer seal
Standard cylinders
Mobile hydraulics
Machine tools
Injection molding machines
Earth moving equipment
Agricultural machinery

Standard material
Material Code SU512
Material Base Polyurethane 94 Shore A
Color Dark blue
Back-up ring material Polyacetal resine (POM)

Pressure, Speed
Working pressure, P 40 MPa
Running speed, v 0,5 m/s

Medium, Working Temperature
Material Code SU512
Hydraulic oils: HL, HLP -30.. +110 ˚C
HFA, HFB fluids +5 … +60 oC
HFC fluids -30 … +40 °C
Water +5 … +50 oC
Mineral greases -30 … +110 °C
Max. permissible gap dimension, emax
Max pressure
L=6,3 L=8,1
16 Mpa 0,50 0,60
26 Mpa 0,40 0,50
32 Mpa 0,35 0,40
40 Mpa 0,30 0,40
Surface quality*
Surface roughness Ra Rmax
Sliding surfaces 0.05 .. 0,3μm ≤ 2,5 μm
Groove base ≤ 1.6 μm ≤ 6.3 μm
Groove flanks ≤ 3 μm ≤ 15 μm

*Contact area Mr = 50% to 90% at cutting depth c=Rz/2 and reference line Cref=0%

Ød
ØD
H
L