O-ring seal ZSDA seriesNBRPTFEparts
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Characteristics
- Type
- O-ring
- Material
- NBR, PTFE
- Application
- piston, for cylinders, for cylinders, parts, slide, cylinder
- Other characteristics
- radial
- Temperature limit
Min.: -35 °C
(-31 °F)Max.: 100 °C
(212 °F)- Pressure limit
450 bar
(6,526.7 psi)- Diameter
Min.: 40 mm
(1.575 in)Max.: 600 mm
(23.622 in)- Outer diameter
100 mm
(3.937 in)- Shore A hardness
40 unit
- Speed
1 m/s
(3.3 ft/s)
Description
The Hunger ZSDA seal for cylinders with radial drillings
is a piston 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
with-out radial drillings up to 2000 bar.
The ZSDA 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 outer 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 finish on the sliding surface
of Ra 0.3 - 0.5 μm, minimum friction is achieved
with high sealing efficiency and a long service life.
The ZSDA is also available in a modified version for
use with corrosive fluids or high temperatures.
Catalogs
ZSDA
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.