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A bourdon tube, typically found in pressure gauges and switches is an oval shaped tube which is then curled lengthwise into an arc. When pressure is applied internally to the tube the natural tendency is for the oval shaped tube to move to form a circular tube, kind of like a balloon does when you blow air into it. Because it is curled when the tube moves towards a circular configuration the shorter inside of the arc lengthens as a result while the outer arc tend to shorten. In other word the tube tries to straighten itself out. When the pressure is removed from the inside of the tube the elasticity of the metal pulls it back into it's original shape. Bourdon tubes are made in different sizes and the smaller dimensioned (the oval not the arc) tubes can carry higher pressures than the larger ones.
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What capacity pump will be required when head is 30 meter and 600 meter for of water storage tank?
For every 10meter head there will be one kg/cm2 drop in pressure when the head is 30meter above then the required pressure should always be more than the head, if the pump is used only for filling the storage tank you need not go for much higher pressure pump that would make your operating cost high. It would be better if you opt for around 4 kg/cm2 pump provided your take into consideration the number of bends used in the piping and the amount of pressure dropped in the bends.
What does water pressure mean?
Water pressure refers to the pressure of water in a system. In a home it will be 30-50 psi typically and this is governed by the municipal pressure or by a well tank.
Who was the inventor of consolidation test?
The Classical Method of soil testing for consolidation was developed by Karl Terzaghi. Consolidation occurs when a pressure is applied to a soil whereby water is squeezed out but the space is not replaced by air.
House water pressure?
House water pressure should be around 50-60 psi.
Will adding another water heater boost the water pressure in the house in addition to giving more hot water?
No and yes. No, you won't get more water pressure. To do that you'll need to find out why the water pressure is low. Perhaps flow restriction, perhaps a poorly adjusted water pressure regulator, perhaps low pressure from the well/city water. But an additional water heater will certainly give you more hot water. It would be like putting in a LARGER water heater. In most cities the water pressure required is about 20 PSI. Small city's do not add pressure pumps to their system but use a gravity supply. That is why most places there is a pressure problem either build their water tanks taller or erect them on a hill.
Does plumbing with less bends increase water pressure?
Yes. Bends and joints create friction which translate into pressure loss, even if very minimal.
What happens when pressure greater than atmospheric pressure is applied to pure water or a solution?
If a pressure greater than atmospheric pressure is applied to a solution or pure water, its water potential increases
The pressure needed to stop osmosis is called?
The osmotic pressure. This is the pressure which would have to be applied to a solution to stop water entering if it was separated from pure water by a semipermeable membrane.
What happens when a pressure greater than atmospheric pressure is applied on pure water?
It is compressed and occupies a smaller volume.
How much pressure should be applied to common water in order to split it to its element H2 and O2?
Mechanical pressure will not split water into its component elements.
Why can you get the bends?
The reason you get the bends is because of the nitrogen inside the tank. When you are deep under water the pressure gets higher. If you stay at 20ft for 5 minutes this will release all the nitrogen at a proper rate. If you shoot to the top the nitrogen spews out too quickly which is bad so, when that happens you will get the bends.
How is force being used on a hosepipe?
The forces applied to a hosepipe when the water is turned on is high pressure from the water being stopped in the rubber hose by the nozzle. The force and pressure of the water is pushing out from the inside of the hosepipe.
What is osmostic pressure?
blood osmoctic pressure is the pressure that must be applied to a solution to prevent the inward flow of water across a selectively permiable membrane
Why the water always go in same outer direction?
Gravity. Water will always take the path of least resistance, which is sideways. And if there is pressure from the top, Pascal's principle is in affect which states that when pressure is applied to the top of a body of water the resulting affect is pressure on all other sides of the body of water.
How much weight kg can you lift with 1 psi of water pressure?
You can lift a locomotive or a house with 1 psi, if the pressure is applied over a large enough area.
Does depth affect water resistance?
Resistance of water is probably defined as pressure being applied by water on objects and as it's stated in fluid mechanics books pressure increases as height decreases or depth increases, so simply the answer is "yes".
What happens at the edge of skate?
At the blade of a skate, the pressure applied on the ice forms a slight layer of liquid water that reduces friction, therefore allowing you to glide gracefully (or fall not so gracefully) across the ice. The water melts with increasing pressure is due to water strange property, the fact that it has a lower density as a solid than a liquid. Therefore, with applied pressure, the melting point of water decreases since the lower volume state is liquid. Therefore, under intense pressure you can actually keep liquid water below its normal melting point.
