Technical data: Ambient temperatures
Designation
Description
Ambient temperature
-15 to 80°C < 0°C:
use control air with a low dew point.
Protect valve stems against freezing.
Operating temperature
Depending on the sealing material
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
max. 10 bar (116 psi)
Control air pressure
6 or 7 bar (87 or 101 psi), depending
on the type of positioner
Control air
acc. to ISO 8573-1
- Solid particle content:
Quality class 6
Particle size max. 5 µm
Particle density max. 5 mg/m
3
- 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 to 1m
3
air
5.3
Seat leakage according to DIN EN 60534-4
Herewith we confirm that our hygienic VARIVENT
®
control valves type S and P
meet the requirements according to DIN EN 60534-4.
Examples for the different seat seals:
Technical data
Seat leakage according to DIN EN 60534-4
430BAL011074EN_5
08.11.2021
23
