Saturday, October 20, 2007

why ITB..

I have some reasons why I decided to continue my study at ITB. I choose ITB because there is environmental technology as one of study programmes. I know that other universities like UI, UNDIP, and ITS also have that study programme but I still choose ITB because it is more comfortable than the others. It is located in Bandung which has cool air. Besides that, ITB is not too far from my house in Bekasi. Other university like UI is also not too far from my house but environmental technology in there is just opened. So, I think environmental technology in ITB is better than there. The other reason is my parents also support me to study in ITB. That’s why I chose ITB as a place to study.

Pressure compensated valve

Pressure compensated valve works in open and closed modes. In open modes, water flows to the inlet in low pressure. Because of low pressure, the piston doesn’t press the spring. So, the position of the orifice and the outlet is in open position. In closed modes, water flows to the inlet in high pressure. Because of high pressure, the spring is pressed by the piston and the position of the orifice is moved. So, the diameter of the outlet becomes smaller. In conclusion, in both of the low pressure and high pressure, the volume of the water in every second which flows to the outlet is still constant.