How to Choose Mobile Trailer Mounted Self Priming Pumps?

When your pumping application involves the target slurry or liquid in a tank, hopper, etc that is positioned above your pump, this usually signifies a flooded suction application. What this means is that the liquid or slurry is positioned in a way where it can gravity feed into the suction of the pump. This then automatically primes the pump and allows it to move the slurry or liquid. Some common applications for this setup are process pump applications that are often found inside of plants and facilities.

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These setups usually involve an electrically driven pump with a variable frequency drive (VFD) or a soft-start. A VFD makes sure that the pump startup is monitored correctly and can also monitor the speed or rpm of the pump in order to control the flow and pressure of the pump. A less common power source for a flooded suction pump is a direct drive diesel driven pump. This can be found in outside hopper pump applications for sand and gravel pumping, mining, drilling mud pumping, etc.

It is important to make sure that the material is not so thick or viscous that even though it is above the pump it fails to gravity feed into the pump. In a case like this, it is important to incorporate a vacuum pump in order to create enough of a vacuum to help feed the liquid or slurry into the pump. Please refer to the self-priming application below for more detailed information.

Submersible pump setups mean that the pump is submerged in the liquid or slurry that is being pumped. Since submersible pumps are completely submerged in liquid, they do not need to be primed, which can be an advantage over pumps which are positioned outside of the liquid. Being submerged inside the source material also provides max efficiency and pumping distances when compared to a self-priming unit.

Excavator attachments, cable-hung deployments, diver units and other dredging applications typically fall under submersible pumps. Electric and hydraulic power options exist.

Some common applications for this type of pump setup are dredging, sump pumping, bilge pumping, and other similar applications. Submersible pumps can be powered electrically or hydraulically. There are pros and cons for both of these submersible pump power choices. In dredging applications, the submersible pump can be deployed in various ways to meet the goals of the project. Some common submersible pump deployments for dredging are as follows:

Non-submersible, land or barge-based pumps, ideal for portable situations, functioning like an extreme shop-vac.  A self-priming pump is different from a standard centrifugal or EDDY pump in that it has the ability to remove air from the volute and suction hose. A vacuum-assisted priming unit built into the pump automatically primes the pump by drawing slurry (fluid) into the pump to prime it. This process repeats if air is introduced into the pump or suction line, ensuring the pump continues sucking target material. 

All pumps need to have a flooded case, aka the volute, for pumping to take place. Self-priming units ensure the pump is primed when the unit loses suction. 

If the pump loses prime, aka suction, the self-priming unit turns on, sucking material back into the pump, then allowing the main pump to take over again.  In effect, the “self-priming” capability of the pump comes from the pump’s ability to rid itself of air and retain slurry material after the initial prime. 

Since the pump is self-priming, this means the pump can be mounted above and outside of the material being pumped. This type of pump setup allows for greater mobility and use for multiple applications. Sump cleanout and dewatering projects are popular since the pump is mounted apart from the material, maintenance and repairs are much easier as the pump components are not submerged or otherwise hard to reach. Self-priming pumps can be trailer, barge or skid mounted for greater flexibility depending on your needs.

Product  induction:

1. Flow range: 300m ³/h-m ³/h, pumping head range is 10m-30m.

2. Pump body material: cast iron or stainless steel material, and the inlet and outlet of the water pump are connected by Paul's quick couplings.

3. Equipped with a vacuum assist system, there is no need to fill the pump body with water before starting up. The pump head has a detachable cleaning port for easy maintenance and cleaning.

4. The structure of the cabin is reasonable, made of high-quality galvanized steel plates with a thickness of not less than 2.0mm. Each steel plate has undergone sandblasting, rust prevention, and anti-corrosion treatment, and is coated with 300 degree high-temperature spray paint technology. The cabin is equipped with doors on both sides to meet the observation, operation, maintenance, and repair needs of the genset control system.

5.According to the size of the water pump flow supporting engine, can be customized two-wheeled or four-wheeled trailer, trailer tow bar can be applied to a variety of heights of the tractor, steering without a dead angle, easy to move, with the pull with the use of a traveling inertia braking system, travel speed: 20km/h-60km/h.

6. The unit adopts an intelligent controller that displays parameters of the diesel engine, such as water temperature, oil pressure, oil temperature, speed, etc., and sends alarm commands when faults are detected (such as high oil temperature, low oil pressure, emergency stop alarm, etc.). It is equipped with an (emergency stop) button and has overload protection and alarm stop functions for the entire genset. The operation is simple and reliable.

Performance characteristics:

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1. Good self-priming performance: The self-priming height is 1 meter higher than ordinary self-priming pumps, and the self-priming time is shorter.

2. Strong sewage discharge capacity: The special impeller anti blocking design ensures strong sewage discharge capacity, ensuring high efficiency and no blockage of the pump.

3. Efficient and energy-saving: Adopting excellent hydraulic models, the efficiency is 3-5% higher than that of general self-priming pumps.

4. Compact structure: Compared with ordinary centrifugal pumps, self-priming pumps have a compact structure and simple operation, which not only saves the trouble of pouring a large amount of water before starting, but also eliminates the low valve of the inlet pipe, reduces the inlet resistance, and increases the pump's water output.

5. Crushing mechanism: capable of tearing, cutting, and smoothly discharging fibrous materials without the need for a filter screen on the pump.

6. Sealing: can ensure safe and continuous operation of the pump for a long time.

Application:

1. Urban water supply and drainage: self-priming pumps can be used in urban water supply systems to ensure that residents' water needs are met.

2. Irrigation of farmland: In agricultural production, self-priming pumps are used to extract groundwater or river water for irrigation of farmland.

3. Industrial water: industrial production process requires a large amount of water, self-priming pumps can be used to transport industrial water.

4. Chemical industry: Self priming pumps are suitable for transporting special media such as chemical, petroleum, pharmaceutical, food, etc. They are suitable for transporting media with high temperatures, corrosiveness, and high viscosity.

5. Sewage treatment: Self suction pumps can be used in sewage treatment plants to extract and treat sewage.

6. Swimming pool circulating water: The self-priming pump is suitable for the swimming pool's circulating water system to ensure clean water quality.

7. Home drainage: In the home environment, self-priming pumps can be used for basement drainage or other areas that require pumping water.

8. High-rise water supply: self-priming pumps can be used in high-rise buildings water supply system, to ensure water supply pressure.

9. Industrial circulating water: In industrial production, self-priming pumps are used for circulating cooling water systems to ensure the normal operation of equipment.

10. Infrastructure construction: In the construction of infrastructure such as roads and bridges, self-priming pumps are used to extract and transport building materials such as concrete.

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