Main field of Walle-Seals:
· Ball valves
· Control valves
· Regulating valves
· Butterfly valves
· Sampling valves
· Gate valves
· Seat valves
Valves, which must operate with very low temperatures such as -196 °C or in the
desert,
which must be resistant against aggressive medias, hot gases and pressures of
several hundred
bars, require special solutions - seals from Walle.
This applies in particular if the operation conditions of the valves and the seals
do not permit
aging.
Walle supplies seals for the most different valves like ball valves, butterfly
valves, control and
regulating valves, gate valves etc.
Is it high temperatures +315 °C (+800 °C with Metal-seals), low temperatures or
aggressive media:
We have the correct answer for your problems.
Whether the application at the arbor respectively at the control shaft or at the
spherical sealing
surface of the ball at the butterfly or at the gate - we have a solution!
Advantages of Walle-seals:
Applicable in the housing or in the disc of butterfly valves.
In different variants and special designs from 2 mm up to 3000 mm diameter
available.
· Universal chemical-resistant
· Durable elasticity because of an integrated stainless steel spring
· Sterilisable for foodstuff or pharmaceutical applications
· Capsulated or totally sealed stainless steel spring
· Highest wear resistance and lowest friction forces
· Suitable for high and low temperatures
(-196 °C to +316 °C) (+800 °C Metal-Seals)
Product Lines
Spring Energized PTFE-Seals
or made of other high performance plastics with a stainless steel spring for
lasting elasticity.
Metallic O-Rings and Metallic C-Rings
use as static seals for gases and fluids under extreme conditions, temperatures
from -269 °C to +980 °C and UHV-vacuum to 6800 bar pressure.
PTFE-Seals
universal chemical resistance, sterilisable, suitable for food and drug.
PTFE-Parts
according to drawings and specifications of clients.
Metallic-Etched Parts
parts from 0.01 to 1 mm thickness, from 2 x 2 mm up to 500 x 2000 mm.
Rotary Lip Seals of PTFE
for high shaft velocity, poor lubricated conditions, long life time, almost
universal chemical resistance.
Metallic Seals and Laser Parts
for small series, individual parts and experiments,without any tooling costs.
Seals made of Fluor-Elastomers and Perfluor-Elastomers
Stainless steel (301,304)
Additional materials on request
| Lip materials: |
|
|
| Approximately 45 lip materials are available for special applications. Following please find a selection of materials: |
|
|
| Material Description |
Relative Wear Resistance |
Temperature Range |
| |
1 = low, 9 = high |
|
| PTFE - virgin; for food and pharmaceutical applications |
3 |
- 230 ... +190ºC |
| PTFE - with Carbon and Graphite; good general properties |
8 |
- 100 ... +225ºC |
| PTFE - with Graphite; good general properties |
7 |
- 130 ... +250ºC |
| PTFE - with Glass fiber and Graphite; good wear resistance |
9 |
- 100 ... +260ºC |
| PTFE - with special filler; good wear resistance, for unhardened stainless steel shafts |
9 |
- 100 ... +260ºC |
Contact information:
Dongguan Walle Sealing Technology Development Co., Ltd
Tel: 86-769-33291139 / 22762051
Mobile: 13620011767
Fax: 86-769-22762052
URL: walleseals.en.made-in-china.com
Audited Supplier 
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