Davey's DynaDrive Inverter Water Pump - DD90-11
Key features:
- Inverter pump (variable frequency drive) type.
- Max. flow rate: 92L-35L/min @ 300-500 kPa
- Suitable for larger households (Up to 7 shower heads with up to 10 piping).
- For showering, running taps, & garden use.
- 24 months warranty for pump, motor & controller.
(24 + 6 additional months with e-Warranty scheme) - Adjustable pressure setting based on usage.
- At least 50% energy-saving (water & electricity) water pump.
Classified As:
Overview of Davey's DynaDrive Inverter Water Pump - DD90-11
The DD90-11 (CE) is a compact all-in-one constant pressure home pressure system designed for domestic, agricultural, irrigation, and general water transfer applications. It is suitable for household water supply, farming systems, turf watering systems, and automatic water transfer where stable and reliable pressure is required.
This model uses a horizontal multistage centrifugal pump constructed with stainless steel hydraulic components, ensuring corrosion resistance, durability, and sustainability for higher water temperatures. Compared to the DD60-10 (CE), the DD90-11 (CE) delivers higher flow capacity while operating at a slightly lower maximum head, making it more suitable for applications requiring greater volume delivery.
DynaDrive Inverter Water Pump Variations
| Water Pump Model: | DynaDrive 5 Stage | DynaDrive 6 Stage |
|---|---|---|
| SKU | DD60-10 | DD90-11 |
The primary distinction between Davey’s DynaDrive water pump types is the rigidity of the impellers, which are classified as five or six stages. These figures are equivalent to having five or six impellers inside, and each addition necessitates a higher flow rate. There is a detailed explanation and tabulation of the performance differences between the two water pump models.
DD90-11 Method of Identification
The DynaDrive in DD90-11 version features a similar unique identifier that separates itself from every other water pumps of Davey. These are principles centered to warehouse and merchandising management experiences, which involves stock-checking during pump production and stock-keeping phases.
Outside it, in the later years of end user application, the encoding would allow technicians to identify the sequence retrieval of manuals necessary to repair and/or maintain the inverter centrifugal pump by getting the right piece of spare parts needed. And it begins with:
“DD90-11“
The initial alphabetical character of ‘DD‘ represents the DynaDrive water pump series on its own, which itself does not repeat for other product lines of Davey Water Products.
Follow this is a set of numerical figures that represents the flow rate at the best efficient point (BEP) in Litres per minute (LPM). And in this case, the parameters are valued at metric system of 90 Litres per minute (or 23.78 Gallon per minute when converted into the imperial system of calculation) which this version of Davey’s DynaDrive can output.
This is continued with a simple dash, and after that, an eleven can be seen for the encoded pump. This number is the output at Kilowatt (Power Square or P²) measure upon the operation of Davey’s DynaDrive inverter boosting, which remains specific only to this model of a pump.
Likewise, once an identifier is imposed, the electropump would likely never be revised any further for a proper key tracing number protocol.
Attachment
8 Litre Pressure Tank
The DynaDrive Davey electric pump’s constant pressure system is achieved by keeping the water tank horizontal with a reservoir mechanism that can hold up to 8 L (270,512 fl oz) of water. Every time you turn on the faucet or flush the toilet, the hydrate in the pressure tank flows out, maintaining a constant concentration and preventing sudden drops in pressure.
Eliminate pump cycling: Using a water pump without a pressure tank causes incredible wear and tear due to the resulting start-and-stop usage habits, but using a pump provides a useful buffer. This reduces the need to turn DynaDrive on and off efficiently throughout the day.
Energy-saving: Energy savings are achieved by optionally reducing DynaDrive water pump operation, reducing unnecessary current consumption. Not only will the number of starts and stops be reduced, but the water system will also be more efficient when running.
Certification
The DynaDrive water pump has obtained several certifications in order to meet government regulations. This ensures user safety when using DynaDrive. Apart from that, it also allows national and international sales to be done. This supports DynaDrive global exporting requirements. The most important is to build customer trust and brand credibility.
SGS Testing: DynaDrive has undergo SGS Testing that confirms the pump meets electrical safety standards for household use. The tests includes:
- Electric shock risks
- Short circuits
- Fire hazards
- Proper insulation and grounding
European Standards (ES) must be meet. It is required for import approval into Europe allowing confirmation compliance with European household safety requirements.
IEC: The International Electrotechnical Commission (IEC) is a global authority for electrical and electronic standards. All DynaDrive models has comply with these international benchmarks.
Standards Australia: DynaDrive meets the Standards Australia, an independent, non-government certification body. This confirms household electrical safety for the product.
Standards New Zealand: DynaDrive also meets the Standards New Zealand, national standards authority allowing the product to be legally exported and sold in New Zealand.
ISO 9001 – Quality Management: ensure consistent manufacturing quality. This confirms that all DynaDrive products are produced with uniform standards across the supply chain.
ISO 14001: For the complete production centered towards the DynaDrive DD90-11, the assembly line at geared towards conscious environmentalism. Excess wastes are carefully planned to be recycled after usage, and disposed with meticulous precision if there lies no further uses. Similarly, the introduction of a pressure tank as well as variable-frequency drive of the DynaDrive aligns with the value of green technology application.
TEFC Motor With Built-In Variable Speed Drive (VSD)
An accessory controller that is in sync with the motor of Davey’s DynaDrive water pump is called a variable-frequency drive, or VFD for short. Its purpose is to automatically regulate the speed.
This is accomplished methodically by adjusting the frequency while using an electrical power source, which directs the pump to operate at a precise level. As a result, rather than creating a constant water pressure when operating, diverse requirements are met.
Energy-savvy: Davey’s DynaDrive centrifugal pump reduces inadvertent electrical usage by operating at the speed required to meet the required output.
More than 200 starts per hour: Davey’s DynaDrive electric pump can do more than 200 motorized starts per hour, which is more than twice as many as most of our rivals on the market today.
Decreased wear and tear and softer start-stop: The water pump’s mechanical components experience less stress when the pump accelerates or decelerates slowly, which also revitalizes the DynaDrive for long-term sustainability.
High ambient temperature-resistant: This water pump employs an inverter drive designed to withstand high heat action since it produces heat when in use and is put around the equator, which is known for its humidity and year-round hot weather.
High-voltage (V) resistance: The DynaDrive can withstand high electric tension charges at varying voltage strengths based on the application period.
Controller Setting
To control the preferred maximum pressure found, an automated pump controller that is extremely adjustable can be used. The electro-technology has a blue LED display and an alert system to monitor in case there is no flow. As a fail-safe measure, this would cause the water pump to completely stop.
This safeguard, often referred to as dry running protection, protects the impellers and other components of the inner compartment from potential harm (caused by the absence of water flow at that time).
House Pump And Piping Infographic
Within Malaysia as a country and a geographical region on its own, the civil infrastructure pertaining towards water pump for housing use is a large sector with strong market share to maintain and help fellow residence and/or folks in. As such, the local Davey team have created an infographic revolving around the types of centrifugal pump needed to fit the right number of piping system found.
This is the best go-to as a reference as to prevent hydraulic shock (or what is also known as water hammer in common terms) where continuous pressurisation and/or stopping it may cause a sudden re-direction in water flow across a household piping structure, causing a shockwave or the loud banging noise that is well heard of to concern property owners for the call of their very own plumber to investigate.
1.25 Inch of Inlet Sizing for Efficient Housing Flow Rate
First and foremost, having a suitable water source is the most important part of accommodation. As clean fluid is drawn in, Davey’s DynaDrive water pump’s 1 and a quarter-inch (31.75mm) inlet helps boost its flow rate.
When a family employs a 1-inch (25.4mm) channel, a connector can be connected from the tube to the home booster pump for convenient installation and efficient use.
The capacity of Davey’s water pump and the inlet measurement must always be matched to avoid cavitation while maintaining maximum efficiency as a constant pressure system during this process.
Net positive suction head (NPSH): Davey’s DynaDrive electric pump’s ability to fully suction water in without creating air bubbles is a result of its specified inlet dimension.
Because the DynaDrive’s entrance is larger, there is less friction inside the pipes, which minimizes wear and tear and increases flow rate.
Faster self-priming: As the larger water pump’s input sucks out all the air before it becomes dampened in priming, the tubing enters a vacuum state much more quickly. This also helps to prevent DynaDrive from dry running.
Volute
The front casing, also called the volute casing, is a crucial part of any water pump on the market. Its purpose is to direct the water flow that the impeller itself moves into the feed for final consumption.
It would be an understatement to say that the volute casing would aid in converting the water’s internal velocity energy into the DynaDrive water pump’s pressure. In situations where the water pump is still much superior to any type of plastic-injection molding, SUS304 composite alloy is utilized to withstand severe circumstances, rust, and provide unwavering strength.
Even water distribution: The design continues to be beneficial in attracting a consistent flow of water to the exit of the DynaDrive water pump. Water is guided steadily via the volute to ensure that hydration exits even more easily, avoiding needless pressure surges or irregular flow, which can eventually harm any centrifugal pump.
Control and support: The electric pump’s distinct structural rigidity helps to maintain the impellers and other internal parts in their set positions. Many of the moving parts are maintained in the interim to guarantee the DynaDrive pump runs effectively and dependably.
Protection of internal parts: A protective barrier keeps pollutants, tiny dust particles, and/or external debris from entering the water pump, facilitating the operation of the DynaDrive’s internal components. Excessive heat or stress is also controlled by monitoring the flow of water (h2o).
Aiding priming: Davey’s DynaDrive water pump helps to hold water inside so that a suitable suction can occur as water is directed to go unidirectionally.
Impeller And Diffuser
The stage body, sometimes referred to as a protection bracket, is the internal and middle part of a water pump that fits the different impeller and diffuser sequences into stationary placement and drives fluid for a rigid pressure increase. This is only realized when water moves from one series of its compartments to another. The DynaDrive electropump uses this force to continuously raise pressure in a water system when necessary.
The protection brackets for the first stage, second stage, extra inner stages (based on DynaDrive’s iteration model), and final stage are arranged in an ordered fashion within the actual water pump. Additionally, the components will be enclosed in each of these installations.
Closed Design
Additionally, a SUS304 impeller is incorporated and utilized for the DynaDrive centrifugal pumps’ practical durability. Because the metallic impeller swirls the water considerably more quickly than plastic, it enables better performance applications. This is designed to accommodate larger housing, more faucets and/or running taps, and internal piping infrastructure; in the end, a higher pressure is needed.
The term “closed impeller” describes an impeller that has been invented with both sides totally sealed. Every version of the DynaDrive that was constructed according to its blueprint for residences uses this, which generates a higher pressure required with the water pump than a semi-open impeller could.
Corrosion-resistant: Your raw Malaysian water supply will constantly come into contact with the propelling mechanism that is hooked to the shaft within. This is the outcome of internal and exterior wear and strain on the DynaDrive water pump. These impellers are composed of a composite metal composition to prevent corrosion and ultimately cause disaster.
Reduced maintenance: Because the DynaDrive electric pump is designed to operate exclusively on clean liquids, it requires less upkeep and experiences little to no clogging throughout its entire operation.
Backplate And Mechanical Seal
The backplate is mounted to support Davey’s DynaDrive water pump from the back.
Additionally, the water distribution is appropriately conducted from the impeller and into the discharge outlet as intended, supporting the mechanical seal, a clip spring, and a washer in place.
Motor protection: Another crucial feature is that the backplate would act as a tertiary barrier against water spills, keeping it out of a pump’s electric motor. In the end, this prevents electrocution, needless DynaDrive damage, and dangerous water supply.
Shaft support: The backplate serves as a support for the rotating machine element installed internally in a water pump, ensuring that this essential part remains in alignment throughout operation.
O-Ring And Spacer
O-rings are used to firmly seal the internal components of Davey’s DynaDrive water pump, preventing any water leaks. These are found in the volute casing and one that fits within the adapter of the variable-frequency drive. They are made of EPDM (ethylene propylene diene monomer rubber).
In order to prevent internal parts from grinding against one another and causing unnecessary wear and strain on the water pump, spacers are installed. The spacers also perform the task of aligning all other elements, including the water pump’s impellers and rotating shaft, into the proper positions.
The washer, a flat, tiny round rubber component, is the final internal component used in the water pump to fully seal, reduce friction, and evenly distribute pressure across the various components of the pump assembly. It is the ideal assembly for home use since it is built of polymers, which absorb operation noises into the hydrocarbon substance to reduce noise as well.
Operating Limits of DynaDrive DD90-11
| Model | DD90-11 (CE) |
| Model | DD90-11 |
| Max. flow rate @ 300 kPa | 92L / min (24 US gallons) |
| Max. flow rate @ 400 kPa | 72L / min (13 US gallons) |
| Max. flow rate @ 500 kPa | 35L / min (9 US gallons) |
| Max casing pressure | 1,000 kPa (145 psi) |
| Max. set pressure | 600 kPa (87 psi) |
| Min. cut-in pressure | 10 kPa (gauge pressure) (1.5 psi) |
| Default cut-in pressure | 50 kPa (7 psi) less than set pressure |
| Max. cut-in pressure | 20 kPa (3 psi) less than set pressure |
| Operating water temperature range | 0 – 80°C (32 – 176ºF) |
| Operating ambient / air temperature range | 0 – 50°C (32 – 122ºF) |
| Nature of fluids | Clean, clear, non-corrosive, non-flammable liquids with no fibres and little sand / silica or abrasives (maximum concentration 40 g/m3) |
| Applicable approvals |
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| Applicable approvals (Global versions) |
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| Applicable approvals (US versions) |
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*L within the table refers to Litre.
*kPa unit refers to Kilopascal.
*The °C unit symbol refers to degree celsius.
*UNE is the abbreviation for Spanish Association for Standardisation.
*IEC is the short naming form of International Electrotechnical Commission.
*AS/NZS is Standards Australia / Standards New Zealand achievement.
*Gallons is a measurement from the United States for liquid capacity.
Materials of Construction
| Part | Material |
|---|---|
| Casing | 304 stainless steel |
| Impellers | 304 stainless steel |
| Stages (casing) | 304 stainless steel |
| Pump shaft | 316 stainless steel |
| Stage centring device | 304 stainless steel |
| Mechanical seal | Carbon / ceramic |
| O-rings | Ethylene propylene diene monomer (EPDM) |
| Plugs | 316 stainless steel |
| Motor shell and lantern bracket | Aluminium with baked polyester powder coat finish |
| Motor drive | Xenoy |
| Fan cowl / rear foot (DD60-08, DD60-10, DD90-11) | Polypropylene |
| Adaptor VSD | Polypropylene |
| 5-way tee piece | 304 stainless steel |
| Pump coupling to 5-way tee piece | Brass |
*SUS304 also is also known as 304 stainless steel adaptation.
Electrical Data of DynaDrive Inverter Water Pump - DD90-11
| Model | DD90-10 (CE) |
| Voltage | Estimated 220 – 240V |
| Max motor speed | 2,900 rpm |
| Frequency (incoming power) | 50 – 60 Hz |
| Input power P1 | 1.3 kW |
| Output power P2 | 0.9 kW |
| Running current | 8.6 A |
| Insulation class | F |
| IP rating | 55 |
*Voltage uses a symbol known as V.
*Revolution per minute is shortened to RPM.
*kW is defined as kilowatt.
*A is the symbol for Ampere.
*IP rating stands for ingress protection rating.
Performance Sheet of DynaDrive Inverter Water Pump - DD90-11
| Models | DD60-10 (CE) |
| Inlet (BSP F) | 1.25″ / 31.75mm |
| Discharge outlet (BSP M) | 1″ / 25.4mm |
| Pressure tank outlet (top) (BSP F) | 1″ / 25.4mm |
| Default nominal operating pres | 400 kPa |
| Number of stages (impellers) | 5 |
| Max. pump pressure | 56m |
| Default tank pre-charge pressure (Optional extra on CE variants) | 280 kPa |
*BSP F interchanges British Standard Pipe Female.
BSP M swaps British Standard Pipe Male.
*The symbol ” is the inch equivalent.
*Milimeter is shortened to mm.
*kPa is known as kilopascal.
*CE refers to Conformite Europeenne.
Q-H Curve of DD90-11 Inverter Water Pump
Flow Rate Graph of DD90-11 Inverter Water Pump
Included In The Box
DynaDrive Inverter Water Pump – DD90-11
User Manual
Proof of Purchase
24 Months of Manufacturer Warranty (Increased by Another 6 Months with e-Warranty Scheme)
Downloads
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