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Merkel U-Ring Seal Set 02140 pages
Hydraulic Seals | Rod Seals | Merkel U-Ring Seal Set 0214
Merkel U-Ring Seal Set 0214
NBR U-ring
Material
Back-up ring
Back-up ring
<300 mm
Material
Code
Polyacetal POM
Fabric
POM PO202
Back-up ring
>300 mm
Material
Two-piece Merkel seal set comprising an elastomer U-ring with
an elastomer sealing edge, fabric reinforcement on the contact
area and an active back-up ring.
Code
Polyamide
Product description
PA 6.G200
U-Ring
Code
NBR
80 NBR B246
Cotton fabric
Product advantages
Material
BI-NBR B4 B248
Other materials like PTFE bronze back-up ring on enquiry.
Single-acting rod seal for use in hydraulics and pneumatics.
Operating conditions
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Low friction due to fabric reinforcement
Large range of dimensions
Protection against extrusion through activated back-up ring
Low deformation value (not suitable for sealing systems)
Easily installed in non-axial housings
From 100 mm diameter
Application
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Iron and steel technology
Presses
Marine hydraulics
Scrap cutters
Injection moulding machines
Steel hydraulics engineering
Special cylinders
Pressure p Hydraulic
25 or 40* MPa
* Max. pressure depends on the profile.
Pressure p Pneumatic
5 MPa
Running speed v
1,5 m/s
Medium/
Temperature
80 NBR B246/BI-NBR
B4 B248/PA 6.G200
80 NBR B246/BI-NBR
B4 B248/POM PO202
Hydraulic oils HL, HLP
–30 °C … +100 °C
–30 °C … +100 °C
HFA fluids
+5 °C … +60 °C
+5 °C … +60 °C
HFB fluids
+5 °C … +60 °C
+5 °C … +60 °C
–30 °C … +60 °C
HFC fluids
–30 °C … +60 °C
HFD fluids
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–
Water
+5 °C … +100 °C
+5 °C … +100 °C
HETG (rapeseed oil)
–30 °C … +80 °C
–30 °C … +80 °C
HEES (synthetic ester)
–30 °C … +80 °C
–30 °C … +80 °C
HEPG (glycol)
–30 °C … +60 °C
–30 °C … +60 °C
Mineral greases
–30 °C … +100 °C
–30 °C … +100 °C
For Merkel U-Ring Seal Sets 0214, if long strokes are traversed,
the max. pressure should only be applied to the last part of the
stroke (closing pressure); during the stroke max. 16 MPa.
Design notes
Please observe our general design notes in ➔ Technical Manual.
© Freudenberg Sealing Technologies GmbH & Co. KG | Seals for Fluid Power eCatalog 2014
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