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MI01 Rev. 06 dated 08/11/2019
This document is the property of PolyKeg S.r.l. - Unauthorised copying and use is prohibited
USER MANUAL FOR
POLYKEG KEGS
8. INSTRUCTIONS FOR THE AUTOMATIC FILLING OF KEGS WITH BAGS
In order to use the PolyKeg
®
keg with an inner bag in automatic filling systems, the indications below
must be followed:
1. The Polykeg
®
keg with bag can be filled with the valve pointing either upwards or downwards.
2. The filling of the bag must take place exclusively via the central channel of the valve (or rather the exit
channel for the product during tapping).
3. Polykeg
®
kegs with bag are supplied filled with:
• Pressure of 1 bar between the keg and the bag
• Pressure of 0.5 bar with CO2 in the bag.
4. The maximum axial load of the PolyKeg
®
keg (clamping force) varies in accordance to the internal
pressure. Reference values:
• 100 kg at 1 bar (as supplied).
• 60 kg at 0 bar (if depressurised during filling).
5. The surfaces on the PolyKeg
®
valve must be sanitised according to the indications in section 5 of this
manual.
6. PolyKeg
®
valves are compatible with the industrial standards for tapping systems. For detailed
information regarding filling, request the PolyKeg
®
technical drawings relative to each specific valve.
IMPORTANT: For the filling of PolyKeg
®
kegs with bags with A, G or K valves:
• Use the correct filling head stroke - refer to the PolyKeg
®
technical drawings
• After filling, bring the counter-pressure between the keg and the bag to a level which is equal to or
slightly higher than that used for filling.
8.1 FILLING PROCEDURE
1. Connect the filling head to the PolyKeg
®
valve.
2. Clean and sanitise the valve.
3. Open the keg valve.
4. If necessary, adjust the counter-pressure in accordance with the product pressure/temperature
parameters for the product used for filling in order to set and/or vary filling speed.
5. Begin filling - the fluid will enter the keg.
6. Once the desired quantity has been reached, stop filling.
7. Bring the counter-pressure between the keg and the bag to a level which is equal to or slightly higher
than that used for filling.
8. Close the keg valve.
9. Disconnect the filling head.
10. Remove any product residue from the valve.
11. Clean and sanitise the valve.
12. Apply the protective seal to the valve.
