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What happens if you do not purge stainless steel pipe?
they rust
What is meant by the term high efficiency purge unit on a chiller?
A high efficiency purge unit on a chiller is designed to effectively remove non-condensable gases, such as air and moisture, from the refrigerant circuit. By maintaining a low level of these gases, the purge unit helps optimize the chiller's performance, improve energy efficiency, and prevent potential damage to the system. This process enhances the overall reliability and longevity of the chiller while ensuring it operates at peak efficiency.
What should be done to reduce refrigerant loss from a purge unit on a CFC-11 chiller?
Leak test and repair the chiller.
Why do chillers using CFC-11 and HCFC-123 require purge units?
These refrigerants have higher boiling points than say R12 or R22. Thus when a machine using them operates the low side will run in a vacuum. So any low side leak points will suck in air rather than leak refrigerant out. A purge unit constantly samples the condenser gas and removes the air and water vapor which has been pulled in at these leaking points and periodically releases them to atmosphere while it condenses any refrigerant vapor picked up in the sample mix to a liquid and returns it to the machine.
Can nitrogen be used to purge gas pipes before welding?
Yes, and No, Nitrogen can be used to purge gas lines prior to welding, but the correct answer depends on several things, mainly, your welding application. A significant amount of resistance welding applications use N2 as a suitable environment for welding. Other applications use N2 as a purge gas, and then purge the N2 with the process gas. That said, if you were going to be using a different inert gas (Argon, Helium, Xenon, etc.) to provide the actual the actual shield for the weld, then you would still need to displace (purge) the N2 from the lines. The last statement leads to the question of; if you are going to have to purge the lines anyway, why do it twice? The answer to this question is pretty basic. Nitrogen is cheap. If you had to purge a lot of lines, or a large volume of space, you would rather use N2 to drive out the Oxygen and lower the dew point (moisture). Using one of the other welding gases would cost about ten times as much to perform the operation.
Should you insulate swimming pool pipes underground?
I see no reason why you would insulate them. When you close your pool for winter you will purge (empty) your pump and pipes. The water in the pool would freeze long before the water will in the pipes under ground.
How do you purge water pipes for the winter?
The best way to purge water from pipes for the winter is to open the tap for about 24 hours. It is also a good idea to install frost proof hydrants on all outside outlets.
What happens wehn a purge switch is pressed on welding equipment?
When a purge switch is pressed on welding equipment, it typically activates a gas flow, such as argon or another shielding gas, to clear the welding torch and eliminate any contaminants from the welding area. This process ensures that the weld is made with a clean and uncontaminated environment, which is crucial for achieving high-quality welds. Additionally, purging helps to prevent oxidation and other defects in the weld bead.
What are uses for helium?
According to Helium.com, "It is used in low-temperature cooling systems and pressure, lighter-than-air objects and purge systems".
Is helium valuable what industries use it?
yes. The most important single use for helium in the United States is in low-temperature cooling systems. This is because liquid helium-at -270°C-s cold enough to cool anything else. For example, it is used in superconducting devices.A superconducting material is one that has no resistance to the flow of electricity. Once an electric current begins to flow in the material, it will continue to flow forever. No energy is wasted in moving electricity from one place to another. Superconducting materials may revolutionize electrical systems worldwide someday. The problem is that superconductivity occurs only at very low temperatures. One way to achieve those temperatures is with liquid helium.Another important use of helium is in pressure and purge systems. In many industrial operations, it is necessary to pressurize a system. The easiest way to do that is to pump a gas into the system. But the gas should not be one that will react with other substances in the system. Being inert, helium is a perfect choice. Helium is also used for purging, a process that sweeps away all gas in a container. Again, helium is used because it does not react with anything in the container.Helium is used to inflate balloons and other lighter-than-air crafts, such as dirigibles (blimps).Because of its inactivity, helium is also used in welding systems. Welding is the process by which two metals are heated to high temperatures in order to join them to each other. Welding rarely works well in "normal" air. At high temperatures, the metals may react with oxygen to form metal oxides. If they do, they are less likely to join to each other. If the welding is done in a container of helium, this is not a problem. The metals will not react with helium. They will simply join to each other.
What does purged mean?
A purge is an act of purging, or a cleansing of pipes. To purge means to clean thoroughly, or to free from guilt or sin.
How do you purge air from gas pipes?
If you have a gas oven just turn on a couple of the burners until the flames regulate and seem to be burning without any air bursts coming through
What applications does helium have?
Helium has many unique properties: low boiling point, low density, low solubility, high thermal conductivity and inertness, so it is use for any application which can explioit these properties. Helium was the first gas used for filling balloons and dirigibles. This application goes on in altitude research and for meteorological balloons. The main use of helium is as an inert protection gas in autogenous welding. Its biggest potential is found in applications at very low temperatures. Helium is the only cooler which is capable of reaching temperatures lower than 15 K (-434ºF). The main application of ultralow temperature is in the development of the superconductivity state, in which the resistance to the electricity flux is almost zero. Other applications are its use as pressurizing gas in liquid propellants for rockets, in helium-oxygen mixtures for divers, as working fluid in nuclear reactors cooled down by gas and as gas carrier in chemical analysis by gas chromatography.
How do you say purge in french?
Purge in French translates to "purger."
What would cause a black silt to come from the bathtub and shower faucet for about fifteen seconds?
You should purge all your water pipes of built in sediment. Don't forget, you are drinking the water too!
Where can you catch purge?
Purge is a hack
