Code Description d(f8) D(H11) b B(-0/+0.2) n

K32

K32 is a two piece single acting rod seal which consists of one elastomeric sealing element specially designed with additional sealing lip and one thermoplastic back-up ring.

PRODUCT ADVANTAGES
• Superior sealing effect with the secondary lip
• High wear resistance
• Secondary sealing lip provides extra protection against the ingress of dirt particles.
• Improved sealing gap due to the active back-up ring
• Simple groove design

APPLICATION
Construction machinery , fork-lift trucks , injection moulding machines , agricultural machinery , mining equipment 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. Before installation the sealing element must be oiled with system oil.

MINIMUM DIAMETER VALUES FOR CLOSED TYPE OF GROOVES

(D-d)/2 (mm)

4 5 6  7.5 10 12.5 15

d min (mm)

25 30 40 50 80 100 105
MATERIAL   CODE
PU 94 SHORE A PU9401
POM   PM9901

OPERATING CONDITIONS

PU

MEDIA

Mineral Oils
(DIN 51524)

HFA and
HFB

HFC

TEMPERATURE

-30°C
+100°C

+5°C
+50°C

-30°C
+40°C

PRESSURE

≤400 Bar

≤400 Bar

≤400 Bar

SPEED

≤0.5 m/sn

≤0.5 m/sn

≤0.5 m/sn

Nota: I dati sopra riportati sono valori massimi e non possono essere utilizzati allo stesso tempo.

SURFACE ROUGHNESS

Ra

Rmax

Sliding Surface Ød

≤0.4 μm

≤3.2 μm

Groove Base ØD

≤1.6 μm

≤10 μm

Groove Flanks B

≤3.2 μm

≤16 μm

Note: It is recommended to have 50% to 90% of the working surface material contact area value.

PERMISSIBLE SEALING GAP

PRESSURE (bar)

Smax (mm)

150

1.0

250

0.8

400

0.6

Note: The largest sealing gap value occurring on the non-pressurized side of the seal does have a vital importance for the function of the seal and in this respect it is quite important to use the S value lower than the above indicated numbers.

 

 

 

attachments:
83.18 KB