PUMPS
STATIONARY FIRE-FIGHTING PUMP
A fire pump is any kind of pump that is part of a fire protection system’s water supply. It is important to know that a fire pump does not create water, it takes water that is given to it from a water supply and increases the pressure (energy) of the water.
A fire pump can be powered by electric, diesel or steam and can supply fire sprinklers, standpipes, foam systems, water spray/mist systems or any combination of these systems. The fire pump’s intake is usually connected to the external water supply, although in some cases it may be connected to a local water source such as a well, tank, or body of water.
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When are Fire Pumps Needed ?
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Fire pumps are needed when the water supply cannot provide sufficient pressure to meet the hydraulic design requirements of the fire protection system.
This usually occurs if the building is very tall, such as in high-rise buildings, or in systems which require a relatively high terminal pressure at the fire sprinkler in order to flow a large volume of water, such as in storage warehouses. Fire pumps are also needed if the water supply is provided from a ground level water storage tank.
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Types of Fire Pumps
Types of pumps used for fire service include horizontal split case, vertical split case, vertical inline, vertical turbine, and end suction.
BOOSTER AND TRANSFER SETS
A booster pump increases low water pressure and flow. It provides the extra boost needed to bring your water pressure to the desired level. A water booster pump provides pressure to move water from a storage tank or throughout a whole house or commercial facility.
A water booster pump helps increase the pressure and volume of water that flows from your faucet or shower head. Life with low water pressure is a nuisance. If you’ve ever tried to shower under a trickle of water and had to turn in circles just to get wet, then you're well aware. Low water pressure can make simple tasks like bathing or brushing your teeth a hassle, but a booster pump may be the perfect solution.
What causes low water pressure?
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GRAVITY.
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Distance from water SOURCE.
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Low city water PRESSURE.
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Additional water systems.
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Plumbing PROBLEMS.
DOMESTIC SUBMERSIBLE PUMPS
A submersible pump (or sub pump, electric submersible pump (ESP)) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in the fluid to be pumped. The main advantage of this type of pump is that it prevents pump cavitation, a problem associated with a high elevation difference between pump and the fluid surface.
Submersible pumps push fluid to the surface as opposed to jet pumps which create a vacuum and rely upon atmospheric pressure. Submersibles use pressurized fluid from the surface to drive a hydraulic motor downhole, rather than an electric motor, and are used in heavy oil applications with heated water as the motive fluid.
DEWATERING PUMP
A dewatering pump is a centrifugal pump that is used wherever you need to remove water. You can use the pump at construction sites, in tunnels and mines also in buildings where you need to remove unwanted water.
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What are dewatering pumps?
A dewatering pump is a centrifugal pump that is used wherever you need to remove water. You can use the pump at construction sites, in tunnels and mines also in buildings where you need to remove unwanted water.
Dewatering is Importance for Construction Site
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It Prepares Soil for Construction by facilitate stable and suitable work surface at the bottom of the excavation.
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It Prevents Unsafe Conditions by Stabilize the shoring of the excavation thus avoiding the hazards of slides and caving.
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It Keeps Projects on Schedule.
DEEP WELL SUBMERSIBLE PUMPS
Deep Well Submersible Pumps only need to be primed once because they are submerged in the water being pumped and avoid pump cavitation, which damages the pump and decreases performance. Deep Well Pumps can be used in wells as deep as 300' below ground and work by pushing the fluid to the surface of the well.
WASTE WATER PUMPS
We can refer to be called as sewage pump is used to transfer sewage liquids and solids from one place to another.
Usually, in residential applications, sewage includes soft solids up to 2″ in diameter is pumped from a sewage basin to a sewer system or a septic tank. A sewage pump is installed at the lowest point of the sewage basin.
typically transport the following fluids: raw sewage (e. g. wastewater, sewage, see Sewage pump)
HORIZONTAL PUMPS
Centrifugal pumps are one of the most popular choices for industrial applications like sugar processing, paper manufacturing and much more. Highly efficient, these pumps are highly versatile – meaning they can accommodate a wide range of pressures and liquid flows, making them suitable for several heavyweight applications.
Horizontal multistage centrifugal pump consists of two or more impellers. They are used in pumping services of moderate-to-high TDHs (total dynamic head). Each stage is essentially a separate pump.
All the stages are within the same housing and installed on the same shaft. Eight or more stages can be installed on a single horizontal shaft. Each stage increases the head by approximately the same amount. Multistage pumps can be either single or double suction on the first impeller.
Horizontal centrifugal inline pump has a shaft that is placed horizontally. It is either placed between the bearings or overhung. On the other hand, the vertical inline pump has a shaft that is positioned
vertically.
VERTICAL MULTISTAGE PUMPS
A vertical multistage pump is a centrifugal pump containing two or more impellers. The impellers may be mounted on the same shaft or on different shafts, but for the majority if pumps they are on the same shaft.
The fluid flows into the inlet of the pump casing where it flows into the eye of the impeller. The impeller is driven & rotated by mechanical means such as an electric motor or engine etc.
The rotation of the impeller creates centrifugal force which directs the fluid along the impeller vane and pushes the fluid to the outer tip of the impeller vane where it enters the stage diffuser.
The diffusers are a type of cutwater which direct the fluid into the suction eye of the next impeller.
This process continues until the fluid has passed through each impeller stage. The fluid is then directed out the pump casing through a final diffuser and into the pump discharge. Each stage that the fluid passes through increases the discharge pressure.
Multistage pumps are used when higher pressures are required which single stage pumps of the same size are unable to attain.