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What temperature is vacuum brazing performed at?
Technically brazing is performed above 840F. Vacuum furnace brazing temperatures are determined by the braze filler metal being used and the base metals involved. You should refer to the appropriate material specification for your industry for the applicable variables.
Technically brazing is performed above 840F. Vacuum furnace brazing temperatures are determined by the braze filler metal being used and the base metals involved. You should refer to the appropriate material specification for your industry for the applicable variables.
See lessWhat is the difference between freeze protection and burst protection in a water cooling system?
Freeze Protection requires a glycol concentration level sufficient to prevent the formation of ice crystals at the lowest temperature experienced by the fluid. Freeze protection is imperative when the system requires pumping. Slush is formed when you get colder than its freeze protection rating. BurRead more
Freeze Protection requires a glycol concentration level sufficient to prevent the formation of ice crystals at the lowest temperature experienced by the fluid. Freeze protection is imperative when the system requires pumping. Slush is formed when you get colder than its freeze protection rating.
Burst Protection only requires a glycol concentration high enough (generally 30% by volume or more) to prevent bursting and other mechanical damage from freezing, but not necessarily high enough to keep the fluid pumpable. Burst protection requires less glycol than freeze protection and is suitable for chilled water systems that are dormant in the winter. As the temperature drops below the freezing point of the fluid in a system with burst protection, ice crystals begin to form, and the solution becomes a slush. The fluid expands as ice is formed. This mixture may or may not be pumpable, but it is fluid enough so that the excess volume flows into an expansion tank without damage to the system. As the temperature drops further and all the water freezes, the glycol will begin to freeze and contract.
Source:Â Dry Coolers
See lessWhat type of water treatment do you recommend for an open-loop water cooling system?
Because evaporative towers scrub the air that passes through them, they are prone to collecting debris from the air. This debris can accumulate and cause flow restrictions as well as aggravate corrosion. After the water evaporates, dissolved minerals are left behind and accumulate rapidly until theRead more
Because evaporative towers scrub the air that passes through them, they are prone to collecting debris from the air. This debris can accumulate and cause flow restrictions as well as aggravate corrosion. After the water evaporates, dissolved minerals are left behind and accumulate rapidly until the mineral come out of solution (known as scale).
For these reasons, a properly engineered and administered water treatment program must be employed continuously with the cooling tower. In an open tower cooling system, the water quality must be regularly monitored and treated to control the following conditions:
• Limescale and other water mineral deposits
• Corrosion of all types
• Micro-biological growth, such as algae, bacteria, fungus, and molds
• Suspended solids accumulations, such as airborne dirt and debris that is washed into the cooling tower water
Dry Coolers recommends consulting a local water treatment supplier (Calgon, Nalco, Culligan, etc.) that is familiar with your local water quality to monitor your treatment program.
Source: Dry Coolers
See lessWhat pipe size do you recommend for my water cooling system?
Typically, the piping should be sized large enough so that frictional pressure drops within the piping system make up less than 10% of the operating pressure of the system. For example, a system operating at 100 psi should have less than 10 psi of frictional pressure losses in the piping system. PreRead more
Typically, the piping should be sized large enough so that frictional pressure drops within the piping system make up less than 10% of the operating pressure of the system. For example, a system operating at 100 psi should have less than 10 psi of frictional pressure losses in the piping system. Pressure losses in a piping system can be readily determined using the “equivalent length” method that is found in most piping handbooks. Since most piping systems are not complex, we have developed over the years a simple rule of thumb for sizing the piping. We generally recommend 5-10 feet per second in the supply pipe and 3-5 FPS in the return pipe.
Source:Â Dry Coolers
See lessWhy does my water cooling system pump growl?
If it sounds like there are marbles in your pump, it is more likely caused by cavitation. Cavitation is caused by a rapid change in water pressure that leads to the formation of vapor-filled cavities. These pockets can and will ruin your pump impeller and should be corrected immediately. Poor suctioRead more
If it sounds like there are marbles in your pump, it is more likely caused by cavitation. Cavitation is caused by a rapid change in water pressure that leads to the formation of vapor-filled cavities. These pockets can and will ruin your pump impeller and should be corrected immediately. Poor suction conditions are the most common cause.
Source: Dry Coolers
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