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What type of valve is used on a hydrotree to maintain test pressure after the hydro has reached its required pressure?
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What is time delay valve?
time delay valve is nothing but when a certain pressure is reached the valve will actuate it when the delay reaches
What is the difference between an air bleed valve and a pressure relief valve on a boiler?
They serve two different purposes. An air bleed valve is used to remove air from the circulation system. A pressure relief valve is designed to automatically open when certain pressure levels are reached.
What is safety valve?
It is a device that opens on its own if a certain condition is reached. Let's say you are designing a water heater. You know if everything goes wrong the unit could reach 210 degrees F, or to have 150psi pressure inside it. You also know if either of those things happen the water heater could explode...so you put a safety valve on it that opens if either condition is reached.
What is A well in which water rises because of pressure within an aquifer?
They are called Artesian Wells where underground water under positive pressure causes the water level in the well to rise to a point where hydrostatic equilibrium has been reached. If the water reaches ground level they are call flowing artesian wells; some my look like fountains.
What is the ratio of latching current to holding current?
Latching current is the current flowing between anode to Cathode when thyristor is turned on using gate pulse. If the gate pulse is removed before the required min amount of latching current value is not reached thyristor will turn off. To keep the thyristor in on state the gate pulse duration should be so adjusted that the min latching current value is reached before it ends.
What is the function of compressor governor?
It puts the compressor into an unload state once cut out pressure is reached, and back into a loaded state once the cut in pressure is reached. Depending on the exact setup, a line from one of your air tanks will go to your governor. When the cut out pressure (between 120 and 135 psi) is reached, a valve opens in the governor to send air to to compressor and to the air drier. This closes the discharge valve on the compressor, sending it into an unloaded state, and also starts the air drier purge cycle.
When vapor pressure equals atmospheric pressure at the surface of a liquid it has reached its what?
boling takes place
How do I know when I've reached the right cooker pressure?
You can know when you have reached the right cooker pressure by checking the temperature gauge. The right temperature would also depend on what you are cooking.
How much pressure will compressed CO2 create when released in an air cylinder?
Whatever amount of pressure was used to compress the CO2 originally, can be reached (or nearly reached) when it is released into an air cylinder.
What is an example of critical in a sentence?
The patient's blood pressure had reached critical levels.
When does the level of solution stop rising?
when the amount of pressure needed to stop osmosis is reached.
Why does a 2000 Chevrolet Suburban pump run when vehicle is turned off?
I am not sure about a 2000 Chevy Suburban specifically, but if you are referring to an electronic fuel pump, it is possible an in-line pressure sensor may keep a charge on the pump until the fuel line has whatever the minimal pressure is required to ensure ignition the next time you start the vehicle... Once the required pressure is reached, the pump will shut off automatically. If it does not shut off at all, it could be a leak in the fuel line at some point.
What happens as the drive shaft rotates on a Stratopower pump?
It is essentially a variable displacement pump. At low pressure, the sleeve, driven by a spider that is attached to the compensator piston seals the relief holes in the piston to provide positive pressure to the discharge port. When the required pressure is reached, the compensator piston moves the spider to uncover the relief holes from the sleeve. Thus not pressure can be built up in the piston. This results in the pump being off-loaded.
Why do organisms need energy to develop even after they have reached adulthood?
they need to maintain their basic metabolism to keep cell functions
Why wont the water boil after it has reached its boiling point?
If water is under pressure at all, which could be based on what the atmospheric pressure is, it will not boil at its prescribed temperature.
How does the equilibrium relate to the body systems?
equilibrium relates to the body systems becuase, the body has to maintain homeostasis. Which means that equilibrium has reached in your body.
Would there be more air pressure in a balloon at sea level or high in the sky?
provided the balloon has not reached its elastic limit (it has burst!), the air pressure inside and outside will essentially be equal. [The pressure inside will be slightly less, which is where the lift comes from.] But even at altitude, the pressure will be approximately equal in and out, for at altitude, the balloon will have swelled, thus reducing the internal pressure. It will eventually reach an altitude at which the internal pressure and the external pressure will be equal, and the balloon will have reached maximum expansion. Filled at sea level, a balloon will seem empty and floppy, and very tall and thin. At altitude the balloon will fill out as the external pressure reduces.
