The development of the first automated CIP system accompanied the rennovation of a small 2000 gallon per day family operated dairy (typical of the early 50's) to replace vat pasteurization with a 600 Gph HTST and using the previous pasteurizers as Hold Tanks between the HTST and the single glass filler. The HTST incorporated a separator downstream of the pasteurized regenerator to produce skim milk for bottling and cottage cheese production. 

 
The Hot Water Set for the HTST system center above was fabricated of stainless steel using sanitary pumps and valves and an injection steam mixer.  Peristaltic alkali and acid pumps were added and this system was applied as perhaps the first example of "split-flow" CIP of the heat exchanger, with all raw piping in series with the raw regenerator and final heater and all pasteurized piping in series with the pasteurized regenerator and final cooler, to maintain pressures within the plate gaskets limitations a the required flow of 25 Gpm in the 1-1/2" piping. The green lines were converted to JP and clamp CIP construction.  All red lines were removed for manual cleaning.  The plug valves were manually cleaned before CIP.  Control was via a Taylor Flexo-Timer adapted from the rubber industry.  The 2-2000 gallons cylindrical tanks were subsequently used as test vessels during the devlopment of the first permanently installed fixed ball sprays.  See PUBLICATIONS on this site. 

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