O-ring seal ZSDI seriesNBRPTFEparts
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Characteristics
- Type
- O-ring
- Material
- NBR, PTFE
- Application
- piston, for cylinders, for cylinders, parts, slide, cylinder, rod
- Other characteristics
- radial
- Temperature limit
Max.: 100 °C
(212 °F)Min.: -35 °C
(-31 °F)- Pressure limit
450 bar
(6,526.7 psi)- Diameter
Max.: 700 mm
(27.559 in)Min.: 20 mm
(0.787 in)- Outer diameter
180 mm
(7.087 in)- Shore A hardness
40 unit
- Speed
1 m/s
(3.3 ft/s)
Description
The Hunger ZSDI seal for cylinders with radial drillings
is a piston rod seal which can dynamically operate
over drillings in the cylinder bore up to 3 mm diameter.
It can also be used as a high pressure seal on
cylinders without radial drillings up to 2000 bar.
The ZSDI seal consists of 5 parts. Two L-shaped metallic
support rings and an intermediate metallic thrust
ring support a slide ring of PTFE compound with narrow
sealing lips on its inner diameter. An O-ring acts
as energiser to provide a sealing function even at zero
pressure.
The seal design provides support for the sealing ring
in both axial and radial directions, making it particularly
suitable for use at extremely high pressures.
When combined with a surface finsh on the sliding surface
of Ra 0.1 - 0.3 μm, minimum friction is achieved
with high sealing efficiency and a long service life.
The ZSDI is also available in a modified version for
use with corrossive fluids or high temperatures.
Catalogs
ZSDI
4 Pages
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.