Views: 9 Author: Site Editor Publish Time: 2022-06-21 Origin: Site
Test result for the automatic valves from Colgate-Palmolive Thailand
Sunthai had supplied some sanitary valves Colgate-Palmolive Thailand. Here below is the overall result from client.
1) Ball valve: Acceptable, ball valve conditions meet the requirement. Size of actuator should be increased to ensure no issue when low compressed air pressure.
>> Physical condition is good, surface finish is 3A as proposed
>> Size of actuator looks small, understand that we can increase size of actuator to a bigger size. We may need to increase the size of the actuator to ensure low compressed air (a bit <4 bar ) is possible to turn close or turn open the valve as normal.
>> Top feedback switch is normal and acceptable with the process.
>> Test result with hot water at 80'C is good, valve can normally turn on and off with no leak at stem shaft and completely close without any leak
>> Test with chemical is pending, valve has been installed to the system and waiting for the test. 3% and 5% both of acid and alkali will be used for the test.
2) Butterfly valve: Acceptable, overall conditions meet the requirement
>> Physical valve condition is good, Seal material condition still good condition after turning on and off a hundred times
>> Test with hot water , the condition is still as normal condition.
>> Top feedback switch is good condition,
3) Diaphragm valve: Acceptable - using a sanitizer supply loop
>> Physical condition is good. The surface finish is shiny and higher than 3A standard and good for liquid products without stagnant or leftover in the valve.
>> These valves have been installed to the sanitizer supply loop for 2 months. no issues found and still work as normal.