Monoblock pumps
There are multiple types of monoblock pumps, but the most common
types are given below:
1. Centrifugal
Monoblock Pump
2. Agriculture
Monoblock Water Pumps
3. Submersible
Pump
4. Pressure
Booster Pumps
5. Jet Pump
6. Self-priming
Pumps
1) Centrifugal Monoblock Pump
These pumps mainly utilize for fresh water and liquids that do not
chemically attack the pump parts. Due to their consistency and strength, the
centrifugal monoblock pumps are chiefly utilized in civil, industrial and
agriculture, applications.
The centrifugal monoblock pump allows the pump body to be
dismantled without removing it from the pipeline. These types of pumps can
utilize in a variety of conditions.
The versatility and wide range of these pumps make it easy for you to select the suitable model for your application. These pumps have high power efficiency and low running costs.
The centrifugal pump has a body, impeller, outlet ports, and flanged suction in the internal design. It has a body of cast iron. The housing of the pump is incorporated with the cast iron backplate or the motor bracket.
The centrifugal monoblock pumps are used for domestic water,
agriculture, water delivery to populated areas, hospitals, car washing, hotel,
lawns, gardens, etc.
Features:
- It consumes low power while produce has
high operational efficiency
- This pump has excellent suction lifting
properties
- Dynamically balanced revolving components
like impeller and rotor
- A centrifugal monoblock pump has a rigid
and balanced structure
- Retractable design for easy repairing and
maintenance
- It has a single shaft that guarantees
correct alignment over time
- This pump has a capacitor starter and a
running motor
- Chromed coated steel shaft stops rust on
pump parts
- The impeller is covered for long-lasting,
accurate performance.
- Powerful motor section
- The pump has a sturdy handle that speeds up
lifting considerably.
- Correct handling of voltage instability
2) Agriculture Monoblock
Water Pumps
These pumps are utilized to supply agricultural land with water.
The agriculture monoblock water pumps mostly use by farmers to provide farmland
with water for irrigation from rivers and canals.
The modern period of agricultural irrigation is closely related to sustainable energy use, water needs, the applications of experience and knowledge, and the consideration of market conditions to make sure optimal design of the irrigation application.
These pumps have a very smooth size and shape due that customers
mostly demand these pumps. These can also use without coupling to the base
plate, which makes them very useful in agriculture. Therefore, the monoblock
pump is economically advantageous.
3) Submersible Pump
A submersible pump is a closed motor pump that is attached closely to the pump body. This pump fully immerses in the water. It pumps the water by pushing it. It has a self-priming capability. The main advantage of this pump is that the height difference between the liquid level and the pump is significant, which prevents the pump from cavitation problems.
This type of monoblock pump pushes the water in the surface directed instead of pulling it as jet pump do. Compared to jet pumps, these are more resourceful. They have many features such as low cost and environmental-friendly. These are primarily used as a profitable agricultural irrigation method.
Features:
- Low cost
- Environmental-friendly
4) Pressure Booster Pumps
The pressure booster pump is a type of pump that increases the pressure of the working fluid. These pumps can utilize for liquids or gases, but the structure varies from liquid to liquid. A gas booster works like a gas compressor.
They are used to amplify gas pressure that is already greater
than the ambient pressure. Pressure booster pumps are mainly used to deliver
strong gas, increase gas pressure, and inflate gas cylinders.
Features:
- Booster pump increases the liquid pressure
in the system to increase the fluid flow
- These pumps have the capability to pump
fluid for applications such as manufacturing complexes and high-rise
buildings etc.
- It increases the supply of normal water
- These pumps have a small and easy design
- These are easy to transport
5) Jet Pump
A jet monoblock pump uses to pump water from high depths such as
deeper lakes and wells to the surface of the ground. These pumps pull the fluid
instead of pushing it like a submersible pump. For a good maintenance, the
parts of the pump are made of stainless steel and bronze (also called the cast
iron impeller). The bronze assembly blocks the continuous flow of water and
heat load, achieving stable, accurate performance with no problem.
These pumps further divide into two types:
1. Single-stage
pump
2. Double-stage
pump
The single-stage jet pump has a delivery head that differs in 12,
18, and 27 ranges. In contrast, the two-stage jet pump has a delivery head of
15, 22, and 24.
These pumps use for apartments, hotels, upstairs tanks, large
buildings, and domestic applications.
Features:
- This pump has a long service life
- Its maintenance needs low cost
- Can handle large GLR
- It has an efficient working
6) Self-priming Monoblock
Pump
A pump that utilizes air-water composition to attain a complete primed pumping range is called a self-priming monoblock pump. Self-priming pumps are specially manufactured to re-prime water under lifting conditions.
These pumps are equipped with a superior “fattened belly” spiral
housing, which can hold a small amount of water even when the suction tube is
empty so that it can be lifted. It also includes a deflector non-return valve
built into the pump inlet port.
Features:
- Appropriate for pumping up to a head of 43m
- Self-priming monoblock pumps can handle
many liquids
- It has a delivery ability of up to 60 lpm
- Built-in suction filter to prevent foreign
objects from entering
- Designed for 180-240 volt wide-voltage,
single-phase operation
- Brass impeller
- Good suction lifting properties
- Dynamically balanced spinning components
that minimize vibrations
- The motor of this pump has class “B”
insulation
- Built-in thermal overload protector for all
single-phase pumps
- This pump has the self-priming capability
Operating Parameters of
Monoblock Pumps
The working parameters of the monoblock pump vary according to the
pump type. The below-given parameters are for the centrifugal monoblock pump.
- The power range is 0.50-2.00 HP.
- It has mechanical sealing.
- The suction life with self-priming capacity
will be 6 m
- This pump has a 2800 rpm speed.
- The range of the whole head range is 5-25
m.
- This pump has a size of 25*25, 40*40,
50X50, 65*65, and 75*75.
- It has a discharge rate of 27-900 lpm
Components of Monoblock
Pump
The components that are in this pump are:
1. Impeller
2. Impeller
blades
3. Inlet
valve
4. Outlet valve
1) Impeller
The impeller is a rotating component of the monoblock pump that
uses centrifugal force to move the fluid axially and radially.
2) Impeller Blades
The blades of the impeller rotate with the rotation of the
impeller. When the fluid strikes these blades then the blades increase the
speed of the fluid.
3) Inlet Valve
An inlet valve uses to suck the fluid into the eye of the pump
impeller.
4) Outlet Valve
An outlet valve uses to discharge the fluid.
How to Choose a Monoblock
Pump
Following are some factors that you should keep in mind for the
selection of the monoblock pump:
1) Household pump head
This is the height at which the pump can transfer water. You
should choose the best model for your house according to the size and number of
floors in the house—the height measures in feet or meters.
2) Inlet and outlet size of the household pump
This is the diameter of the inlet and outlet pipes which must correspond
to the size of the incoming water supply pipe and the pipe connected to the
storage tank.
3) Exit rate
This is a measure of the water pumped in one minute. For large
areas, a pump with a large delivery capacity is required. So, before selecting
your pump, you must check the area where you want to pump water.
4) Structure material
This factor does not disturb the application or performance of the
pump, but if you are looking for a product with long service life, you must
choose a pump with a brass impeller and CI motor housing.
Advantages and
Disadvantages of the Monoblock Pump
Advantages |
Disadvantage |
Monoblock pump has a compact and |
It needs initial manual priming for operation |
It has efficient working that increases the pump
performance. |
This pump needs a fluid reservoir due to that the size of
the pump becomes larger than other types of pumps. |
Easy replacement of pump devices |
|
It produces low vibration and noise |
|
These have self-priming capability |
|
Easy maintenance |
|
It has no base plate or guards |
|
These pumps don’t need additional base plates and coupling
for fitting. |
|
It has an easy installation |
|
It is cost-effective |
Applications of Monoblock Pumps
Monoblock pump has the following major applications:
- These pumps use for domestic applications
such as agriculture, hotels, hospitals, small farms, bungalows,
apartments, gardens, and farm-houses.
- Use for dripping and lifting purposes.
- These pumps mostly use for civil,
industrial, and agriculture applications because of their strength and
consistency.
- The centrifugal monoblock pump uses for
freshwater and liquids that do not chemically attack the pump parts.
- These use for dewatering platforms and coal
fields