Booster pumps increase the water pressure within a system.
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As a rule of thumb, you will need a booster pump if either of the following applies:
To know for sure whether you need a booster pump, you will need to undertake calculations.
To check if you need a booster pump without undertaking detailed calculations, a simple check is:
Available Pressure Loss = Water Main Residual Pressure – Vertical Pressure Loss – Fixture Minimum Pressure
The ‘available pressure loss’ result is the pressure you can afford to lose through your pipes, valves, and fittings.
If the ‘available pressure loss’ is negative or very low, you will need to add a pump.
Using some assumed numbers, an example of the simple calculation is below:
Water Main Residual Pressure = 200kPa / 30psi / 2bar
Vertical Pressure Loss = 50kPa / 7.5psi / 0.5bar
Fixture Minimum Pressure = 100kPa / 15psi /1bar
Available Pressure Loss = 50 kPa / 7.5psi / 0.5bar
The available pressure loss (50 kPa / 7.5psi / 0.5bar) is relatively low, which indicates you will likely need a booster pump.
To do more detailed calculations on the pressure loss through the system’s pipes, valves and fittings, learn the process in our pressure loss blog post.
There are two parts to the pump duty:
The pump duty is important as it informs selecting the correct booster pump for your application.
Once you have calculated the booster pump duty, you need to select the correct booster pump.
To check whether a pump is suitable for your design, you need to check its pump curve.
The pump curve indicates what flow and calculating Residual Static Pressure. The booster pump are capable of supplying.
If the pump duty was 11mH @ 22m³/h, it would be above the ‘QH’ line on the below pump curve. Therefore, this pump would not be suitable and you would need to look at a larger model.
However, if the pump duty was 11mH @ 16m³/h, it would be close to the ‘QH line’ on the pump curve. Therefore, this pump would be a suitable selection.
Not only should the pump duty fit on the pump curve, but you also need to ensure it is in an efficient section of the pump curve.
For example, if the pump duty is around the edges of the pump curve, such as 2m³/h, it is not an efficient selection.
Although the pump can supply the duty, it is not going to be energy efficient. Whereas if the duty is 16m³/h, it is closer to peak efficiency.
There are various arrangements of booster pumps available.
Before looking at the various arrangements, you should understand some common pump terminology:
There are various configurations of these pump types, the most common are:
As you can probably imagine based on the above list, any pump configuration is possible.
However, whilst adding more pumps does improve the reliability and efficiency of the system, the installation becomes increasingly expensive.
Booster pumps need to be located before (also known as upstream) every fixture that needs pressuring.
Whilst the booster pump is part of the plumbing system, it requires various members of the design team to allow for it in their own design.
If you do not communicate the various requirements to the rest of the team, they will not provide their services to it. This means there will be issues that need to be resolved later in the design stage, which will have significant consequences.
Provide the electrical engineer with the power requirements and location of the booster pump.
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The power supply will ensure the booster pump is able to operate.
Provide the mechanical (or sometimes electrical) engineer with the BMS requirements of the pump.
The BMS monitoring will inform the maintenance team of any issues with the pump by providing warnings to a central location.
Provide the structural engineer with the booster pump weight to ensure their structure is designed to handle it.
The size and location of the booster pump need to be coordinated with the architect.
There should also be sufficient clearance around the pump for maintenance and a viable path in and out of the building in the event of it needing to be replaced.
Compared to other major components of a water system, booster pumps generally require minimal maintenance.
Maintenance is usually undertaken annually, which consists of:
The pumps will need to be replaced eventually; their design life is around 15 years.
It is good practice to install pressure gauges in various locations around the water system.
Some example locations of where to locate pressure gauges are:
The pressure gauges provide you with the ability to check the pressure in various locations around the building.
As you can see in the image above, if you found an unusual pressure reading at a point in the system, you could check the various gauges around the system to troubleshoot where the issue is coming from.
Without the pressure gauges, it would be difficult, time-consuming, and intrusive to troubleshoot the problem.
This allows you to easily undertake fault finding and ensure the pump is operating as intended.
h2x automates your pressure calculations based on the inputs from the water connection, the water system layout, and the heights assigned to your fixtures/nodes.
Warnings are provided where the pressure falls short of the component(s) minimum inlet pressure.
And the booster pump duty is automatically sized when you add a pump to your design.
H2X was built by engineers to help engineers work faster and more accurately.
If you would like to try H2X today, sign up for a free trial now.
The gas booster pump is a kind of equipment commonly used in the industry. It has a unique structural design, which can effectively reduce the temperature rise during the gas pressurization process. Therefore, it is particularly important to master its use method and precautions when using it.
A gas booster pump, as the name suggests, is a device used to boost gas pressure. Its principle is to use the low-pressure gas to push the large piston to drive the small piston of the high-pressure booster cylinder. By calculating the area ratio of the large and small pistons, the booster ratio of the gas booster pump is obtained. If the area ratio of the large and small pistons is 10:1, the pressurized gas will have a 10-fold relationship with the driving gas. Because the boosting cylinder and the driving cylinder are separated, the purity of the pressurized gas will not be affected by other The effect results in a decrease in purity.
When installing the gas booster pump, it is necessary to avoid sundries from entering the inlet and outlet and keep the inlet and outlet clean. The driving gas should choose a clean gas source, which can ensure its continuous and stable operation of the driving gas. It is recommended to apply an appropriate amount of lubricating oil during its installation. Generally, lubrication is no longer required. If dry compressed gas is used for long-term driving, it is also necessary to add an appropriate amount of lubricating oil to its oil cup for lubrication.
The connection pipeline should select a suitable output connection pipeline according to its output pressure and can withstand its maximum output pressure inlet. The greater the inlet pressure, the greater the flow rate. Therefore, during the setting process, press The design of the pump should be set according to the environment or some work requirements.
1. Check whether the connection of each pipeline is reliable.
2. Check the accuracy of each pressure indicator in each shift. If it is found that the error is large or the pointer does not move, it should be replaced in time.
1. The user should prepare the pressurized gas and pipeline, the driving gas and pipeline, and the high-pressure gas outlet pipeline, fix the booster pump according to the instructions of the booster pump when it is delivered, and connect the pipeline according to the size of each inlet and outlet joint of the booster pump. Check whether the pressure is enough, whether there is leakage of the joint, etc., after the check is intact, you can carry out the pressurization test.
2. Gas source: the pressure range of the driving gas source of the gas booster pump is generally 1.8-8 bar. It is not recommended that the driving gas source exceed 10 bar. If the driving gas source is too high, it will cause damage to the pump body to a large extent, and even harm to the operator.
3. Gas booster pump selection: customers should choose the corresponding booster ratio according to the pressure of their own needs. According to the pressure needs of customers, we should focus on the air source pressure, intake pressure, output pressure demand, and flow rate, so that technicians can help you more accurately choose.
4. On the site use environment: the site use environment must be clean, can not have too large dust particles, driving air source and pressurized medium moisture content is not too much, otherwise it will greatly reduce the service life of the pump.
5. Requirements for pipelines: the sealing tightness of the high-pressure output pipeline must be tested when the customer uses it on-site, and the pipes, valves, and pressure gauges must be greater than the rated pressure output of the gas booster pump to maximize the safety of personnel operation.
6. Requirements for pressure vessels: all parts of pressure parts, especially the pressure vessels, must have the pressure safety vessel inspection report produced by the pressure safety vessel manufacturer.
WINGOIL is a professional manufacturer of gas booster equipment. With years of experience in equipment development and manufacturing, as well as experience in technical solutions, WINGOIL can provide customers with one-to-one customized products and services according to their actual needs.
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