GEA D-tec D, Operating Instruction

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Technical data: Compressed air supply
Designation Description
Air hose
- metric
Material PE-LD outside Ø 6 mm
Inside Ø 4 mm
- Inch
Material PA outside-Ø 6.35 mm
Inside Ø 4.3 mm
Product pressure
5 bar (72.5 psi) standard
> 5 bar (72.5 psi) on request
Control air pressure 6 bar, max. 8 bar
Control air acc. to ISO 8573-1:2010
- Solid particle content:
Quality class 6
Part size. max. 5 mm
Part density max. 5 mg/m3
- Water content:
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.
- Oil content:
Quality class 3, preferably oil free
max. 1 mg oil in 1m3 air
5.3 Resistance of the sealing materials
The resistance of sealing materials depends 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.
Resistance:
• + = good resistance
•
o = reduced resistance
• - = no resistance
* Depending on the installation conditions
Seal resistance for EPDM, FKM, HNBR, PTFE
Medium Temperature Sealing material (general operation temperature)
EPDM
-40...+135 °C *
(-40...275 °F) FKM
-10...+200 °C *
(+14...+392 °F) HNBR
-25...+140 °C *
(-13...+284 °F)
PTFE *
Stem diaphragm
Alkalis up to 3% up to 80 °C (176 °F) + o + +
Alkalis up to 5% up to 40 °C (104 °F) + o o +
Alkalis up to 5% up to 80 °C (176° F) + – – +
Alkalis more than
5%
o – – +
Inorganic acids up
to 3%
up to 80 °C (176 °F) + + + +
Inorganic acids up
to 5%
up to 80 °C (176 °F) o + o +
Inorganic acids up
to 5% up to 100 °C (212
°F)
– + – +
Technical data
Resistance of the sealing materials
430BAL013307EN_8
24 04.08.2022