Resistance And Permitted Operating Temperature Of The Sealing Materials - GEA VARIVENT TSVN Operating Instruction

Technical data: temperatures
Designation
Ambient temperature
Product temperature and operating
temperature
Technical data: pressure
Designation
Product pressure
Control air pressure
Air requirement
Control air
- Solid particle content:
- Water content:
- Oil content:
4.3

Resistance and permitted operating temperature of the sealing materials

The resistance and permitted operating temperature of the sealing materials
depend on the type and temperature of the medium conveyed. The exposure
time can adversely affect the service life of the seals. The sealing materials
comply with the regulations of FDA 21 CFR 177.2600 or FDA 21 CFR 177.1550.
The maximum operating temperature is defined by the sealing type and its
mechanical load.
Due to the versatile conditions of use (e.g. usage duration, switching frequency,
type and temperature of product and cleaning agents as well as usage
environment), GEA Tuchenhagen recommends that the user carries out
resistance tests.
Resistance:
•
•
430BAL008565EN_1
21.03.2022
Resistance and permitted operating temperature of the sealing materials
+ = good resistance
o = reduced resistance
Description
0 to 60 °C (32 ... 140 °F), standard
< 0 °C Use control air with low dew
point, protect valve stems from icing
up
depending on the sealing material
Description
max. 10 bar (145 psi), standard
6 bar, max. 8 bar
3
13.1 cm /stroke
acc. to ISO 8573-1
Quality class 6
Particle size max. 5 µm
Particle density max. 5 mg/m
Quality class 4
max. dew point +3 °C
If the unit is used at higher altitudes or
at low ambient temperatures, the dew
point must be adapted accordingly.
Quality class 3, ideally oil-free, max.
3
1 mg oil for 1 m air
Technical data
3
17