Keofitt CIP RECIRCULATOR User manual

DON’T GAMBLE WITH YOUR SAMPLE
CIP RECIRCULATOR
USER MANUAL

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 2
DOCUMENT VERSION LOG
The table below lists previous versions of this User Manual and states the major changes between ver-
sions.
This version list is introduced in September 2017.
Version # Version date Major changes from previous versions
1 September 2017 Complete revision and new layout.
2 April 2019 Replaces preliminary version 1 with more text, improved instruc-
tions and more pictures.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 3
INTRODUCTION:
MANUFACTURER: KeottA/S
Kullinggade 31 B+E
5700 Svendborg, Denmark
TYPE: CIP Recirculator
YEAR OF INTRODUCTION: 2017
YEAR OF REVISED DESIGN: 2019
LAST UPDATED: 2019
The English version of this Manual is the governing version and it is the only authorized version. Consequently, KEOFITT
cannot be held liable for other versions including translations of this Manual

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 4
CONTENTS
1. PRESENTATION..........................................................................................................5
1.1 Alcohol as cleaning agent ....................................................................................................................... 5
1.2 Other cleaning agents............................................................................................................................. 5
2. CIP RECIRCULATOR DESCRIPTION ................................................................................6
3. INITIAL CLEANING ......................................................................................................7
4. CHOOSING AND PREPARING A CLEANING SOLUTION........................................................8
5. PRE-SAMPLING CLEANING...........................................................................................9
5.1 Connecting the Recirculator................................................................................................................... 9
5.2 Flushing ................................................................................................................................................... 9
5.3 CIP Recirculation................................................................................................................................... 10
6. SAMPLING .............................................................................................................. 11
7. POST-SAMPLING CLEANING ....................................................................................... 12
8. ADDITIONAL BARRIER............................................................................................... 13
9. RE-USE OF CLEANING SOLUTION ................................................................................ 14
10. ALTERNATIVE CLEANING AGENTS .............................................................................. 15

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 5
1. PRESENTATION
ThismanualprovidesinformationonhowtousetheKeottCIPRecirculatorforcleaninganddisinfect-
ingaKeottsamplingvalvehavinghosepiececonnectionsfortheinletandoutletports.IfyourKeott
sampling valve has Mini Tri-clamp or threaded ports, use an adaptor, #900096 or #700062 respectively.
The principle behind the Recirculator is based on the operator circulating a cleaning agent from the bot-
tle through the valve chamber and back to the bottle by means of a hand operated bulb pump.
1.1 ALCOHOL AS CLEANING AGENT
By default, this manual is based on alcohol (70%) as cleaning agent, since it is widely used in breweries.
For this application alcohol has the advantage that it will act both as a cleaning agent and as a disinfect-
ant.
1.2 OTHER CLEANING AGENTS
You may also use the Recirculator with traditional CIP liquids like sodium hydroxide or nitric acid, as well
as rinse water. Procedures are explained in more detail in the chapter 10.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 6
2. CIP RECIRCULATOR DESCRIPTION
The Recirculator consists of the following components:
# DESIGNATION DESCRIPTION AND USE
1 Bottle 1Lbottletobelledwithdetergent
2 Screw cap Fitted with internal and external hose unions and an air vent.
3 Bulb pump Hand operated pump placed in-line with supply hose.
4 Supply hose Conducts cleaning agent into the sampling valve.
5 Safety check valve Securesauni-directionalowfromthebottlethroughthesupply
hose to the valve to be cleaned. Requires a given over-pressure to
open at all.
6 Inlet connector FitshosepiececonnectorsonKeottvalves.Tobeconnectedtothe
sampling valve’s inlet port (upper port).
7 Outlet connector FitshosepiececonnectorsonKeottvalves.Tobeconnectedtothe
sampling valve’s outlet port (lower port).
8 Check valve Preventsthecontentinthebottletoowoutincasethebottleis
turned upside down.
9 Return hose Conducts cleaning agent from the sampling valve back to the bottle.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 7
3. INITIAL CLEANING
PriortotherstuseoftheRecirculatoritisadvisedtocleanthebottle,thescrewcapandtheassociated
hoses and connectors with alcohol or another appropriate detergent and disinfectant.
NB! Perform these operations in a clean, controlled environment. The required hygienic level
must be determined individually depending the actual application.
Oncewashed/disinfectedkeeptheRecirculatorinasuitableprotectivepackaginguntilnextuse.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 8
4. CHOOSING AND PREPARING A CLEANING SOLUTION
Prepare a solution suitable for cleaning the actual product.
By default, the descriptions to follow are based on alcohol as a cleaning agent, as it is widely used in
breweries.
NB! The liquid in the Recirculator is coloured green for better visualization; real alcohol is colour-
less.
1. Prepare a 70% alcohol solution.
2. Take a clean Recirculator bottle and un-
screw the cap.
3. Fill the bottle ¾ with the alcohol solution
andretthescrewcap.
Make sure the long suction tube is
inserted well below liquid level
4. Provide a small container to place the
capsintoandllitwiththealcoholsolu-
tion
Alcohol is a good detergent for water soluble and alcohol soluble substances and at the same time the
alcohol acts as a disinfectant.
Alwaysusea70%alcoholsolutionconsistingof70%ethanolorisopropanoland30%puriedwater.This
mixture ratio is optimal as the 70% solution is strong enough to quickly denature the cell proteins, with
the water content helping to transport the solution into the bacteria cells.
Prepare the solution on a daily basis. Preparation should be done in a clean, controlled environment.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 9
5. PRE-SAMPLING CLEANING
Ifthevalvechamberhasbeenlledwithalcoholsincethelastsampling,thereisusuallynoneedforany
further cleaning before taking the sample.
NB! When removing the plug from the lower port make sure alcohol drips out from the port indi-
cating the presence of alcohol in the valve chamber.
If this is the case, you may go straight to chapter 6 SAMPLING.
If in doubt about the cleanliness of the sampling valve perform the following cleaning:
5.1 CONNECTING THE RECIRCULATOR
5. Remove both plugs on the valve (it drains
any alcohol from previous sampling, if
valvechamberwaslledwithalcohol
then)
6. Place the plugs in the small container with
alcohol, if they are to be reused; other-
wise discard them
7. Connect Recirculator’s supply hose to the
valve’s top port
Thementionedcaps/plugscouldbeeitherthestandardrubbercapsusuallysuspendedonachainfrom
thevalveorseparaterubbercapsorsteelplugs(seewww.keott.dkforfurtherinformation).
5.2 FLUSHING
8. Squeeze the bulb pump completely 3-4
times to rinse the valve chamber.
Thealcoholisushedtodrain,orany
other waste collection method
Ifthesamplingvalvewasnotcleanedproperlyaertheprevioussampling,productresiduesmaystill
bepresentinthevalvechamber.Ifthisisthecase,youmustcleanandushthevalvechamberbefore
starting the recirculation. In this way, the contamination of the bottle content will be minimized and not
reintroduced back into the bottle.
Itmightbenecessarytopumpmoretimes,iftheproductisstickyordiiculttoushout.Ifyouushthe
alcoholtotheoor,youmayneedtoprovidesomecollectionmethodtobeplacedbelowthevalveto
collect the alcohol.

KEOFITT CIP RECIRCULATOR USER MANUAL V.2 PAGE 10
5.3 CIP RECIRCULATION
9. Connect Recirculator’s return hose to the
lower port
10. Squeeze bulb pump with some force and
as completely as possible to press alcohol
through the valve chamber 5-10 times
When the Recirculator’s two hoses are connected to the valve the CIP recirculation may start.
NB! It is important to squeeze the rubber bulb pump rather hard in order to obtain an adequate
liquidvelocity,whichwillmechanicallyimprovethecleaningeect.Theadequatenumberof
pumping actions is individual from application to application and must be determined by the
user.