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What would be the suction and discharge pressure of an mp39 refrig?
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Comparration diameter size of suction and discharge?
The diameter of the discharge line leaving the ac compressor would be smaller than the suction line, because the compressed gas in the discharge line is more dense.
What should the low pressure be on a hvac system?
The pressure should be equal to a saturated suction temperature of around 40*F. The pressure would differ depending on which refrigerant is used.
Why would a suction line ice up?
Its due to the refrigerant dropping to a temperature that's below freezing(32 degrees at sea level) and the humidity(water) that forms on the suction line freezes caused by several things: shortage of freon, dirty evaporator coil, oversized unit, and dirty filter.
If you have well water would a crack in the PVC pipes cause air in the pipes?
Any break or leak on the suction side of your pump can cause air in the lines.
Can pump discharge head be negative?
When a pump is pumping water from a level that is below the pump it is called suction head. If the water to be pumped is at a level above the pump, it is positive head. The pump maybe pumping from the base of a tank to a higher level such as an elevated tank or it may be pulling water from a tank that is below the pump. The distance from the center of the pump to the top of the water level would be the foot of head. It takes 2.31 feet to make 1 P.S.I. So if it is 10 feet from the center line of the pump to the water level, you would have about 4.33 P.S.I. of head.
Why is the suction line of a pump larger than the discharge line?
It is common practice to specify the pump suction line one size larger than the pump discharge line in order to increase the Net Positive Suction Head available (NPSHA) to the pump. A smaller suction line the same pipe size as the discharge line would result in more pressure drop in the suction line and reduce the amount of head available to the suction side of the pump. This in turn would result in an operating point closer to cavitation of the pump.
Comparration diameter size of suction and discharge?
The diameter of the discharge line leaving the ac compressor would be smaller than the suction line, because the compressed gas in the discharge line is more dense.
What is unit of differential pressure?
Let me differentiate first between design pressure and mechanical design pressure. Design (or discharge) pressure is the pressure at the outlet of the pump, the pressure you've designed the pump to deliver. The mechanical design pressure is a value that the pump casing and downstream piping have to be able to withstand as a minimum*. I presume you mean design pressure as discharge pressure. In this case, differential pressure is the difference between the discharge pressure and the suction pressure (the pressure at the inlet of the pump**). * this is calculated taking into account that a pump would be working against a 'blocked discharge' or a closed valve in the outlet piping ** imagine a reservoir filled with liquid
A refrigerator with a freon restriction would have what symptoms?
High head pressure; low suction pressure; overheated compressor
Is installation of pressure gauge mandatory after a centrifugal pump?
It is certainly not mandatory unless the system it is designed around calls for them, but they certainly are handy and a welcomed if you ever have to troubleshoot the system. I never design a pumping system without having suction and discharge gauges. Of course, on a submersible pump, you would only have a discharge gauge.
What is the SI unit for suction?
I guess that would be measured in units of pressure: Pascal = Newton/meter2.
What symptoms would be indicative of an oil logged condenser?
High discharge pressure and low liquid line pressure
What should the low pressure be on a hvac system?
The pressure should be equal to a saturated suction temperature of around 40*F. The pressure would differ depending on which refrigerant is used.
Which port on AC compressor is low pressure 1999 Chevy blazer?
They may be marked "S" and "D" for suction (low side) and discharge (high side). A simpler way would be to look at the lines going into and out of the AC.... the smaller line will be the high pressure line, while the larger line will be the low pressure line. The low pressure line will connect at the compressor inlet, and the high pressure line will connect at the compressor outlet.
Why suction of blower is up side and discharge lower side?
If you are asking why the low side is high and the high side is low that would indicate that you have a restriction in the a/c system...........
What would the pump pressure be for the master stream flowing a fog nozzle from the top of the apparatus?
Depending in the hydrant suction, pump pressure should be about 80-100 psi
Why would a fixed speed centrifugal pump have low flow?
Most typically it is due to an obstruction in the discharge piping, or air collecting in the top of the pump. Less obvious would be interstage seal leakage, casing leakage, low pressure seal leakage or suction line air induction. Or if a cross connected labyrinth ring is used in the stuffing box this line could have gotten plugged, allowing air to seep in. Improperly positioned suction head could also reduce output, for hot feedwater applications, a D/A or feed tank should be positioned to maintain a positive pressure sufficient enough to prevent steam flashing in the eye of the pump. Seal rings on the impellers could be worn as well. Check to make sure the suction and discharge valves are fully open, calculate the suction head and compare it to the needed suction head to prevent steam flashing, (Pressure/temperature columns in the steam tables). For instance a 250 F water temperature requires a suction head of, at least, +80 feet ( 20 psig) to prevent flashing. If the suction pressure is too low, increase it or cool the water to a reasonable temperature. Open the casing vent slowly to expel any air in the pump. If this doesn't work, check for leakage or damaged pump parts, this may require disassembly.
