Page 46 - FLEXILINE 2017 ENG web

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C1 FLEXILINE C1- 46 Flexible hoses
data sheet index

Guidelines for cleaning and sanitizing hoses

Chemical disinfectant such as caustic soda, nitric acid, phosphoric acid, chloroacetic acid or other acids suitable
for disinfecting food hoses must be carefully selected to ensure optimal effectiveness while also assuring maximum
safety and health.
When selecting a particular disinfectant it is necessary to pay strict attention to concentration levels, temperature,
cycle time, etc. The type of product/material being conveyed must be taken into consideration when selecting a
specific disinfectant. As soon as the disinfecting treatment with chemical solutions is made, the hose must be carefully
rinsed for a sufficiently long time with potable water in order to eliminate any chemical residues from the disinfecting
treatment.

4. PROCESS CONTROLS The result of the cleaning and sanitizing process must be regularly checked to ensure that
all contamination and residuals have been eliminated. Any non conforming events need to be solved with a corrective
action procedure.
The hoses’ life is directly connected to the cleaning and sanitizing process due to the mechanical and chemical
stresses which occur during the process itself.
The service life of rubber hoses is directly dependent on frequency and time of exposure to PHYSICAL and CHEMICAL
disinfectants.
Users should frequently check the condition of the rubber hose material product contact surfaces.
Such oBServations are necessary to determinate the actual sanitary service period of rubber hoses. The present
advices are based on tests and on generally available sources, that are believed to be reliable.
However must be considered as indicatives cause they don’t take care about all variable that may arise during the
utilization.

Medium Hose Tube Concetration Temperature
NR/NBR/SILICONE/
RINSING Hot water - Max 90°C
EPDM/IIR/UPE/PTFE
Max 110°C
NR/NBR -
Max 10 min
PHYSICAL Max 130°C
DISINFECTANT Steam EPDM/IIR/UPE/PTFE - Max 30 min
Max 135°C
SILICONE -
Max 18 min
0,1% Max 65°C
NR/NBR/SILICONE
Acid 2% Max 25°C
[i.e. Nitric acid] 0,1% Max 85°C
EPDM/IIR/UPE/PTFE
3% Max 25°C
CHEMICAL 2% Max 65°C
DISINFECTANT Alkaline solution NR/NBR/SILICONE 4% Max 25°C
[i.e. Caustic soda] 2% Max 85°C
EPDM/IIR/UPE/PTFE
5% Max 25°C
Disinfectant NR/NBR/SILICONE 1%
[i.e. Peracetic acid] EPDM/IIR/UPE/PTFE 1% Max 40°C

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