Seat Leakage According To Din En 60534-4 - GEA VARIVENT Operating Instructions Manual

Technical data: Compressed air supply
Designation
•
•
Control air pressure
Product pressure
5.3

Seat leakage according to DIN EN 60534-4

Herewith we confirm that our hygienic VARIVENT
meet the requirements according to DIN EN 60534-4.
Examples for the different seat seals:
Fig.12:
430BAL011665EN_5
21.03.2023
Water content:
Oil content:
Soft-sealing seat version (VARIVENT®
principle with V-ring)
Seat leakage according to DIN EN 60534-4
Description
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,
preferably oil free,
3
max. 1 mg oil to 1 m
6 bar (87 psi), max. 8 bar (116 psi)
configuration with standard drive
Alternative combinations of product
pressure and control air pressure on
request
5 bar (72.5 psi) configuration with
standard drive
max. 10 bar (116 psi) configuration
with correspondingly designed
actuator
> 10 bar (145.0 psi) for static
applications and on request
®
control valves type S and P
Fig.13: Metallic seat version
Technical data
air
25