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Dear Guys,
I am working in a Company as a QA engineer for Hydraulics Based Company.
Last week i am in a inspection for testing Pressure in a Hydraulic Pipe Line..When the Required Pressure was reached, I started checking for leakages in the pipe Line..No leakage was found.But the Pressure in the Pressure Gauge has reduced.
Please note the Pressure in Power Pack is 450 Bar(Input) and the pressure in the Pipe Line is 440 Bar(Output)..This Temperature was around 28 Deg Celcius and the testing was happened @ Night 11.30 pm..
My client did not accepted the smaller pressure drop and he asked me to retest the Complete Pipe Line..
I did it in the Morning Hours around 11.00 Am..The temperature was around 34 Deg Celcius. I did not found any leakage and No Drop in the Pressure also.The Input and Output reading was 450 Bar..I wondered how it happened?
My Query is ;- if temperature decreases do the pressure reduces? I am speaking completely about Hydraulic Pipe Line where I use 60CST Oil as the medium..
Kindly reply me how it happened .If there is any thery also please let me know.
Please Be noted i have raised this query to all Fortune 500 Companies who are the Kings in hydraulics..But Nobody answered..
I am working in a Company as a QA engineer for Hydraulics Based Company.
Last week i am in a inspection for testing Pressure in a Hydraulic Pipe Line..When the Required Pressure was reached, I started checking for leakages in the pipe Line..No leakage was found.But the Pressure in the Pressure Gauge has reduced.
Please note the Pressure in Power Pack is 450 Bar(Input) and the pressure in the Pipe Line is 440 Bar(Output)..This Temperature was around 28 Deg Celcius and the testing was happened @ Night 11.30 pm..
My client did not accepted the smaller pressure drop and he asked me to retest the Complete Pipe Line..
I did it in the Morning Hours around 11.00 Am..The temperature was around 34 Deg Celcius. I did not found any leakage and No Drop in the Pressure also.The Input and Output reading was 450 Bar..I wondered how it happened?
My Query is ;- if temperature decreases do the pressure reduces? I am speaking completely about Hydraulic Pipe Line where I use 60CST Oil as the medium..
Kindly reply me how it happened .If there is any thery also please let me know.
Please Be noted i have raised this query to all Fortune 500 Companies who are the Kings in hydraulics..But Nobody answered..
