Adam-Opel-Str. 5
65468 Trebur-Astheim, Germany
Phone: +49 (0) 6147-9159-0
Fax: +49 (0) 6147-9159-59
13 Alvis Way
Royal Oak Trading Estate
Daventry, Northants NN11 8PG
Great Britain
Phone: +44 (0) 13 27 31 27 47
Fax: +44 (0) 13 27 31 25 65
sales@ako-valves.com 
www.pinch-valve.com
Contact for sales in Great Britain and Ireland.
Vacuum conveying
If an air operated AKO pinch valve is put under pressure by vacuum > -0.1bar in terms of the medium used (in the pipeline), the valve's sleeve will be deformed by the vacuum. This will have a negative effect on the product's flow rate and the life time of the AKO pinch valve sleeve.
The pinch valve sleeve can be opened or kept open by means of the AKOVAC's control unit.
A vacuum mode of up to -0.8bar can be generated in the feed pipe (pipeline) in terms of the medium.
AKOVAC Comfort
- AKOVAC Comfort
The AKOVAC Comfort model allows for the specific setting of separate pressures on the control unit for the control pressure, for closing the pinch valve and the control pressure which regulates the level of vacuum.
Therefore, the lower operating pressures required for use with vacuum (1-2 bar) for closing the pinch valve, and, if applicable, the slightly higher operating pressures used to achieve the ideal level of vacuum to compensate the medium's vacuum can be adjusted separately to one another.
AKOVAC Basic
- AKOVAC Basic
The AKOVAC Basic model only allows one control pressure which regulates the needed closing pressure of the air operated pinch valve and at the same time the level of vacuum.
