D2 - Intramark

D2 is a single acting rod seal designed to have inner lip shorter than the outer lip in order to be used for rod applications.

PRODUCT ADVANTAGES

Superior static and dynamic sealing effect
Wide range of dimensions
Easy assembly into closed grooves
Simple groove design
Economical sealing solution

APPLICATION

Construction machinery, fork-lift trucks, injection moulding machines, agricultural machinery, loading platforms and standard cylinders.

INSTALLATION

Easily assembled into closed grooves according to the minimum diameter values that are given in the below table. Open grooves or special assembly tools should be used for the values that are outside this table. It is very important that the assembly tools must be of soft material and have no sharp edges. Before installation the rod seal must be oiled with system oil.

NOTES

For special applications that require high temperatures, D2 can be produced in FKM material. The permissible sealing gap values of D2 is given below.

Material	Code
PU 92 SHORE A	PU9201

Surface roughness	Ra	Rmax
Sliding Surface Ød	≤0.4 μm	≤3.2 μm
Groove Base ØD	≤1.6 μm	≤10 μm
Groove Flanks	≤3.2 μm	≤16 μm

Permissible sealing gap

		S max (mm)
t=(D-d)/2 (mm)	150 Bar	250 Bar	400 Bar
t≤5	0.30	0.20	0.15
t>5	0.35	0.25	0.20

OPERATING CONTITIONS

Media	Mineral oils (DIN 51524)	HFA HFB	HFC
Temperature	-30 °C +105 °C	+5 °C +60 °C	-30 °C +60 °C
Pressure	≤150 bar	≤150bar	≤150 bar
Speed	≤0.5 m/sec	≤0.5 m/sec	≤0.5 m/sec