Fixed Fire Fighting Water Supply Equipment

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Fixed Fire Fighting Water Supply Equipment

350 GPM FIRE PUMP SYSTEM.

Operation: 1 Duty(electric) + 1 standby(diesel) + 1 Jockey

Capacity: 350 GPM with 4, 5, 6, 10, 15... Bar

1. Electric pump, closed coupled centrifugal horizontal pumps its casing from cast iron and the impeller is brass, shaft from stainless steel, mechanical seal is carbon/ceramic.

2. Diesel engine pump, with capacity equal to electric pump capacity, fuel tank.

3. Jockey pump, horizontal or vertical, 10, 15, 20, 30GPM

4. Pressure vessel, 25, 50, 75, 100, 150...liters with 4,5,6,10,15...Bar

5. Control panel, MCB for each pump, DOL starter with thermal over load protection for main electric pump, hand off auto selector switch for each pump, indication lamps for pump run and pump trip, pressure switch for the automatic operation, battery charger, 12 volt battery to start the engine.

Q:From the days of the laying of pipe line and trouble is far away, two or more people share the idea of a water pump, controlled by the electromagnetic valve, do not know whether it is feasible, attention should be paid to each of the power may be different phase, and it is the automatic control, automatic switching request all big brother big sister what the solution of power. At the same time, the electromagnetic valve is closed to others. Turn on your own solenoid valve StopThe idea is that each pumping with its own power, so you don't have to worry about sharing electricity.: Each contactor is connected with each power source in the main circuit, and the lower port is connected to the water pump;Control loop, only draw the wiring diagram of A households, households in other similar first power through the control switch in series contactor several other a normally closed contact and then enter the M contactor coil;In water, leading to various water pipes connected with the electromagnetic valve, and the solenoid valve are connected in series and the two contactor normally open contact is connected to the power supply;As long as one of the closed control switch, the pump will run at the same time, using his own power, and this is the other an open pump closed control switch of their own, will not work, the water will not go into his house, the family will not run electricity; only when the first home after closing the control switch second, if still closed control switch, water and electricity will automatically turn to him.Not understood, of course, that there is one drawback, if one is using a pump, a few other can not be used to solve the problems, it is not difficult, is that every installation of a water tank or like a floor, said each install a pressure tank on it

Q:Hey for the past month my car has been leaking coolant, making a wierd noise when i drive it, and saying low coolant when its filled to the top.my husband took it out to get gas this morning and it stopped on him and had to be towed to the mechanicthe mechanic said its the water pump and somethin about anti freeze and this cost almost 300 bucks with parts and laborim just wanting to know if a water pump does indeed cause issues like this before we dish out this kinda money!!! btw its a 96 chevy luminathanks: Yes, when a water pump starts going bad it leaks antifreeze, and if you have low antifreeze engine will get hot and lock up. You'll be lucky if you didn't screw up the bearings(or any thing else). The low coolant light comes on when the water pump quites pumping too. If the car still doesn't turn over after it has cooled down, then the engine is toast.

Q:Horizontal pumps, vertical pumps, which kind of expensive?: Vertical multistage pump is expensive, little water, big pressureHorizontal water pumps, instead, are mainly used for spraying

Q:Installed new water pump on 90 Jeep. Noticed antifreeze around the edges of the pump. Took it off, replaced with new gasket and sealer, but it seams to be leaking again.: Most drainage piping is tested with head pressure. All openings are plugged and the main stack is filled with water to the area specs (usually at least 8') When the inspector arrives, he watches the level for 5 or 10 minutes for approval. Water supply lines are tested with air and a gauge. Most plumbers are too busy to try to fix the tests so the inspector arrives when he is not there and passes or rejects the test. Compressed air is usually used to detect any leaks. I have always set up the test early in the day so I can tell if there is a problem rather than paying to have the system reinspected.

Q:If a person took a water pump and attached to a hose and ended up with (random numbers) 15 gpm and 30 psi at the end of the hose, what would happen if you put an exact same pump right next to it and hooked the two pumps together with a quot;Yfitting to a single hose? Would both the gpm and psi be doubled, or neither, or just one? What would happen?: Only the GPM would be doubled if the pumps are connected in parallel as described. The Pressure would remain at 30 psi. If you were to connect them in series you could double the pressure to 60 psi, but the GPM would remain the same.

Q:i have well water. suddenly i'm getting more pressure in my water. I have a well siofterner system. does anyone know what could be causing more pressure to come out from the water?/ thanks alot.: too much pressure in your pressure tank bleed some air out. reset pressure.

Q:Work done in water pumping?Water is to be brought from a well 60 meters bellow ground level to a tower 10 meters high, once there the water falls freely on a 5000 liter tank. A submerged pump 10 meters under water level and a two inch diameter pipe is to be used. What is the work done by the pump when 2000 liters have been served to the tank; what is the power of a pump selected to do this work in 20 minutes.: Power_W = (Mass_kg * Gravity_m/s/s * Height_m) / time_s Where: Mass kg is 1kg/l of 2000 liters Gravity is 9.81m/s/s Head is 60m + 10m (height). The suction head is ignored because the pump is submerged. In practice there is some suction head due to intake restrictions like pipes, check valves, strainers. The time is 20 minutes in seconds. The work is the energy used in the time allocated, which is: power * time in seconds, which is watt seconds = joules. Not needed here as it is in the formula above. Power is the rate of doing work. The depth below water is not really relevant except for pipe losses which increase the head slightly. The flow is 2000 liters/20 minutes = 100 l/min. This can be used with the head of 70m to determine the pipe restriction, which amounts to a pressure drop representing extra head added. It will indicate whether the pipe is too small (excessive head added) or whether the pipe is overkill (no head added). You can find on line calculators for this, e.g. search pipe resistance flow on line calculator. I am guessing a 2 inch pipe has little loss at this flow. This is the so called water power. It is the output power of the pump. The pump may only be 50% or so efficient, so the mechanical power delivered by the motor needs to be greater by this ratio. The electrical input power to the motor is greater again to allow for motor efficiency. This might be 60-90%. In practice the efficiency of pump and motor are determined from user manual or specification of the actual devices with the actual loads (head and flow).

Q:What is the function of open circulating water pump and shutdown in thermal power plant?: According to the water quality difference, the purpose is to provide the corresponding cooling water, for the system oil cooler, machine seal and other cooling. Open water directly from the circulating water pipe to use, the pump is delivered to the host, the small machine oil cooler, water quality is not very high, the circulating water drainage to the back pipe, water through the water filter filter impurities. The closed water takes the self closing water tank, which is used for removing salt water. General supply pumps, water pumps, sealing cooling water, condensate pumps, sealing water, generator, hydrogen cooler and other requirements of good water quality system, closed water self circulation, and through the cooler and open water circulating water heat exchange.Thermal power plant is referred to as the thermal power plant, is the use of coal, oil and natural gas as a fuel production power plant, it is the basic production process: fuel combustion in the boiler heating water into steam, fuel chemical energy into heat energy, steam pressure and steam turbine rotation, converts heat energy into mechanical energy and steam turbine rotate the generator, the mechanical energy into electrical energy.

Q:Water is pumped out of a holding tank at a rate of 6-6e^(-.09t) liters/minute, where t is in minutes since the pump is started. If the holding tank contains 1000 liters of water when the pump is started, how much water does it hold one hour later??Round your answer to one decimal place.: Three okorder /

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