Davey's Horizontal Multistage Water Pump With Torrium2 - HM160-15T
Key features:
- Standard automatic pressure system type.
- Suitable for larger households (7 shower heads with 10 pipes).
- For household, garden, farming, and agricultural use.
- 24 months warranty for pump, motor & controller.
(24 + 6 additional months with e-Warranty scheme) - Fixed pressure setting on every usage.
- Easy installation, no setting required.
Classified As:
Overview of Davey's Horizontal Multistage Water Pump With Torrium2 - HM160-15T
The upper end of the Horizontal Multistage water pump series by Davey Water Products Pty Ltd. With the pressurisation power of 1.5 kW (P2), the hydraulic performance of this HM160-15T contraption is capable of gushing up and out to three storey buildings high. To put it into specific perspective of the water system found, then the Horizontal Multistage centrifugal pump may power as high up as 7 shower heads and up to 10 pipes available. This is entirely possible only because of its alignment of impellers that are arranged according to inner stages, thrusting hydration increasingly with greater pressure out from its outlet to the intended uses. Having that said, this HM electropump is best suited for shop lots, as well as larger size of homes.
Premium 304SS grade of stainless steel, which is a composite material property, is also used for most of the internal components that are within direct contact of rampant swirling water. This enables the structure of the Horizontal Multistage pump to be robust and resistant towards corrosion, while the shaft that connects between the mechanical section to the electrical segment (TEFC motor) found is built from the highest grade of 316SS stainless steel instead. When fastened on a water supply for a house by plumbing, the durability of the centrifugal pump’s alloy is enduring against external impacts to safeguard the operation.
*Exclusive: Unique as a product value proposition, for the HM60, HM90, and HM160 series, stringent testing was conducted by the Production, as well as Research & Development Team of Davey to ensure a start-stop of 200 times per hour capability is allowed, just so leakage and unnecessary pump cycling would not be dentrimental to the Horizontal Multistage pump within the small period.
Electric Pump's Method of Identification
In keeping track of the wide supply chain as well as production of the Horizontal Multistage HM160-15T pump, a universal encoding for identification has been practised by Waterco and Davey Water Products, and this further meets the internal auditing for mandated ISO application. The universal encoding starts with:
1) The abbreviated name of the product line.
2) The flow rate under Best Efficiency Point at Litre Per Minute (LPM).
3) The electrical power generated in Kilowatt.
4) ‘T‘ as an abbreviation at the end to signify Torrium2 attachment.
To put the serialisation into meaningful perspective, HM160-15T is broken into the following.
The word, “Horizontal Multistage” water pump, is shortened into “HM” as part of Davey’s series of products. This is paired with a numerical numbering of 160, which equates to the flow rate of Best Efficiency Point that is produced in Litres Per Minute. As a constant requirement of electricity to run the centrifugal pump, 1.5 Kilowatt is needed. This is followed by the fastening of the Torrium2 digital and intelligent controller onto the water pump, which is known to be ‘smart’ due to its adaptive ability to follow and memorise the current pressure usage, placing anything below to not run the pump that can cause a constant cycling and eventual damage.
Primarily, the unique product code (SKU) is embedded for every water pumps available within Davey Malaysia to allow for a methodical processing of warehousing storage. This sequencing permits for a fasting retrieval of shelved items whenever purchases and delivery is needed, just as it is orderly arranged. In turn, the identifier also expands to enable technicians and plumbers to identify the exact electropump model found, and when it was installed. This is important because finding the right internal spare part is needed to accurately amend the repairs needed for the HM160-15T Horizontal Multistage water pump.
Attachment
Pressure Controller
The Torrium2 pressure controller is a device that automatically maintains a desired water pressure in the pipeline and responds to changes in demand. Integrated by attaching on the HM160-15T Horizontal Multistage water pump, when you open a tap, shower, or irrigation valve, the water pressure drops. the moment Torrium2 detects this pressure drop, it would turn the pump on. Besides that, it also keeps water pressure relatively constant while water is being used, while protecting the pump with dry-running protection.
As share of the key benefit surrounding the Torrium2 intelligent pressure controller, it adapts by assessing the usage of water throughout the house, and adjusts the pre-requisite level accordingly for longevity of the water pump, and stability of use.
Mechanical Pressure Switch
Alternate to the Torrium2, the mechanical pressure switch is a simple device that turns a water pump on or off based solely on the existing pressure. This is a cheaper version of an attachment because it does not use electronic sensors or microprocessors. Instead, the pressure switch relies on springs, a diaphragm, and electrical contacts to regulate activation of the HM160-15T.
By fixing a cut-in and cut-out pressure setting, this would permit the pump from starting and stopping. For example:
- If the piping features a pressurisation atmosphere of below 20 psi (1.4 bar), then the HM160-15T would begin running.
- If the said piping has between 20–40 psi, then the pump would maintain its run.
- Once it reaches 40 psi (2.8 bar), HM160-15T would automatically be turned off, as the pressure switch triggers the switch opens the electrical contacts.
*Note: It’s required to have a Pressure Tank to be fitted in, as the mechanical pressure switch works in unison for Davey’s Horizontal Multistage water pump.
Pressure Tank
A pressure tank is a sealed tank that stores water under pressure by using compressed air. Paired together with a mechanical pressure switch for a constant water supply, this reduces pump from starting and stopping. It begins by having a water chamber storing hydration in, and the air chamber becomes compressed to its peak. The two sections are separated by a rubber-based diaphragm within.
Whenever a user opens a faucet, the compressed air pushes water out of the tank. With pressure falling to the switch’s cut-in pressure, the Horizontal Multistage water pump starts and refills the tank.
Certification
Scoring worldly-recognised certifications are needed for all versions of Davey’s Horizontal Multistage water pump for a few reasons.
The most important aspect when it comes to these accreditations is to permit market-entry for exporting and compliance towards the localised legislation, which increases the market share while allowing consumers to end consumers to be able to use the centrifugal pumps as desired.
Furthermore, it is primarily important to work alongside regulators with the technology of water pumps that Davey have introduced, either to fit towards electrical appliances of any stated region, or meet the stringent expectations of the pump as imposed by any administration. But having awarded many of these achievements have also promoted and emphasised on the trust of the consumers — something which Davey looks to, allowing a camaraderie building from the standards of developing our HM160-15T Horizontal Multistage electropump, to the safety of utilisation, as well as the protection of health when running the water source into these machines.
It should be said that all sorts of methodology and even newer testing are being trialed for these accreditation, and this is to ensure every step of the way in operation or usage of the HM160-15T pump is long-term performing ad does not pose a hazardous risk to users. The certifications are the following:
SGS Approved: The examining from Société Générale de Surveillance was reached out to gain verification of Davey’s specifications and claims of the Horizontal Multistage water pump, and this was approved following the stated pressure performance, flow rate, electrical safety, and also material quality. Primarily, it is the concern regarding the safety of end consumers that was a focal point of the SGS approval.
European Standard: For Davey to export the Horizontal Multistage pumps to the European Union, it’s in our manufacturing effort to comply with the Ecodesign Regulation (EU). This is to ensure that electropumps developed meet the reliable level of quality and performance, while reducing risks associated with mechanical failure, electrical hazards, leakage, and improper operation. Besides, the European Standard regulates water pumps to meet a minimal efficiency levels where less electricity is consumed, lowering operating costs, reduces greenhouse gas emissions, and also support long-term sustainability goals.
International Electrotechnical Commission (IEC): Electrical and electronic aspects of the Horizontal Multistage water pumps, including motors, control systems, electrical safety, and testing were examined with the IEC, which offers advantage centred to reducing risks such as electric shock, overheating, and fire. This aside, equipment compatibility of any external variable-frequency drives (VFD), and even plugging were also thoroughly trialed to offer a complete connection of pumps to circuitry in the Southeast Asian region.
Australian Standards: Hailing from the Oceania continent ourselves, Davey Malaysia harps on the compliance with the independent and non-profit regulators known as the Australian Standards. As it speaks on the forefront for the consumers, this helps to gain trust where Davey’s HM160-15T Horizontal Multistage water pump is promoted significantly in the Oceania market share. The Australian Standard features different form of testing regime, and with the HM160-15T, only one sub-clause was scrutinised for the wellbeing of people and application upon use.
- AS4020:2005: This protocol revolves around the examination of products for use in contact with drinking water, by ensuring materials used in Davey’s Horizontal Multistage pumps and relatable components do not leech or adversely affect drinking water quality, making it completely safe upon continuous pressurisation.
New Zealander’s Standards: The Standards New Zealand is also a pre-requisite similar to Australian Standards, with the exception that it’s the credential requirement for market entry within New Zealand nation.
ISO 9001:2015: An internationally recognised standard for Quality Management Systems (QMS) that specifies Davey Malaysia as an organization to consistently provide pumps, water products, and technical services that meet customer and regulatory uniformity requirements while continually improving its processes. Meaning, the batch production of all engine water pumps and electropumps from one period to another is consistent and are without deviation.
ISO 14001: For water pump manufacturers, ISO 14001 certification demonstrates a commitment to minimising environmental impacts throughout manufacturing and business operations. This includes wastage recycling whenever possible, and also reducing material wastes upon the creation of mechanical products.
*TÜV SÜD: Unique only to the series of HM160 Horizontal Multistage water pumps, the certification demonstrates that this has been independently tested and assessed for compliance with specified safety, quality, performance, or environmental requirements.
The point of all the gathering across the multiple accreditations is the result of increasing credibility and prominence across the different soil, and this meets customer satisfaction as comformity of water pumps’ guideline becomes met.
Single-Speed, TEFC Motor
The HM160-15T operates at a singular speed and is enclosed to protect the engine from dust, dirt, and moisture. This technology became fitted to the Horizontal Multstage pumps because of its durability, reliability, and requires minimal maintenance work.
With a totally-enclosed, fan-cooled motor that separates the parts where hydration swirls in, and where the mechanical component is, liquids can never reach onto the engine segment unless the backplate or mechanical seal breaks.
Plug-And-Use: It’s a simple setup with no further configurations are needed, whenever the HM160-15T pump is intended to be used. Because the TEFC motor comes directly as a fully-assembled structure as part of the water pump, the HM160-15T can be used immediately after plugging in.
More Than 200 Starts Per Hour: This is where Davey’s marvel of research and development behind the technological application of water pumps truly shine. It became a value proposition that separates ourselves as a water pump manufacturer to that of others, where the HM160-15T Horizontal Multistage is capable of start-stopping 200 times without fail or turning the contraption obsolete. The objective centred to this proven study is the result of witnessing dry running from the numerous pipe and water infrastructure leakages, causing pump cycling that has defected many of the good centrifugal pumps from actual long-term functioning.
Proven Technology: The motor enclosure of the Horizontal Multistage water pump is actually an age-old, tried-and-true innovaton that has stood a test of time. As such, due to the parts being fixated in-place and properly since production, hardly any repairs are needed on the electropump due to its stability.
Cost-Reduction: Alongside using a matured cage as an engine protection, the TEFC motor reduces unnecessary costs by unprecedented maintenance found across centrifugal pumps. And with large oversight with the duration of operation and relatable performances, it becomes easily understood that the Horizontal Multistage centrifugal pump is cost-savvy for all levels of use.
Infographic: HM160-15T In Housing Application
The Davey’s HM160-15T Horizontal Multistage water pump is a larger variation of the HM series, which results in its installation across larger households of three storey buildings, as well as in offices. For illustration reasons to be easily understood, an infographic example of the Davey brand of household pump’s selection guide is formally created by the engineers of Davey Malaysia to assist in choosing the right machine.
Within the pictorial example, the Horizontal Multistage series describes the HM160 to above or at three storey levels, with the bare minimum capacity of supporting seven shower heads and ten water pipes or more. This depicts the large sizing to be a premium or heavy-duty pump.
Inlet Sizing
The HM160-15T has a diameter of 1 and a half inch for its suction inlet, yet a connector can be used to join the pump and the piping system of other length regardless. Typically, it is the professional plumbers that would adjust and maneuver to make sure the output of hydration is seen.
For the inlet, this is a critical component of any water pump that is designed to draw fluid smoothly into the pump for efficient pressurisation and delivery throughout the system. The design and performance of the suction inlet may vary depending on the type of centrifugal pump used, ensuring optimal flow and efficiency for different applications. In the Horizontal Multistage series, only clean water to deliver consistent, reliable pressure throughout the household can be seen.
One Direction: Davey’s HM160-15T Horizontal Multistage pump operates on a unidirectional flow principle, where the electric motor drives pressure differentials that draw water smoothly into the impeller stages. This engineered flow path ensures efficient movement of clean water through the pump for consistent pressure performance.
Less Friction: In centrifugal pump design, larger inlet diameters can contribute to improved flow rates by reducing hydraulic resistance, allowing water to enter the pump more freely and efficiently. This reduction in inlet restriction supports smoother fluid movement and can enhance overall system performance.
Below is a tabulated summation of HM160’s inlet and discharge outlet sizing:
| 240V Single Phase Models | ||
|---|---|---|
| Product Code | Ports | |
| Suction BSP | Discharge BSP | |
| HM160-15 | 1.5 inch (38.1mm) | 1 inch (25.4mm) |
Volute
The volute of the HM160-15T Horizontal Multistage pump appears as a cylindrical outer casing housing the impellers and diffusers, but its internal geometry is carefully engineered in a spiral form. Constructed from durable, high-quality composite metals, it is designed to withstand demanding operating conditions while maintaining hydraulic efficiency.
This volute design serves several key functions. Firstly, it enhances discharge performance by guiding water smoothly as it moves through each impeller stage, ensuring a consistent and controlled flow toward the outlet. The spiral structure is engineered to minimise turbulence, thereby supporting higher hydraulic efficiency and stable flow rates.
In addition, the robust volute casing acts as a protective barrier, helping to prevent external contaminants from entering the pump. This safeguards the internal components and ensures the delivery of clean water, while also reducing the risk of wear or damage to the pumping system.
Energy Transition: In the HM160-15T Horizontal Multistage pump, energy transfer begins as the motor drives the impellers, creating a suction effect that draws water into the pump. As the fluid passes through the impeller stages, it gains kinetic energy and is accelerated outward by centrifugal force toward the volute casing.
Within the volute, this kinetic energy is progressively converted into pressure energy. As the flow area expands, the fluid velocity decreases while pressure increases, resulting in a controlled and efficient discharge at the outlet. This energy conversion process is consistent with Bernoulli’s principle, which describes the relationship between velocity and pressure in a moving fluid.
Self-Priming: As operation stabilises, the volute becomes fully filled with liquid, displacing any remaining air and supporting steady hydraulic conditions. This helps maintain reliable self-priming performance. If air is not properly expelled, entrainment within the impeller region may lead to flow instability and increase the risk of cavitation, which can negatively affect pump performance and longevity.
Impeller And Diffuser
Inside the volute chamber, the impellers and diffusers are housed within a series of precisely engineered stage bodies. Also referred to as protection brackets, these stage bodies securely support and align the internal components, keeping them firmly in place throughout the operation of the Horizontal Multistage Water Pump, even at high rotational speeds.
As water progresses through each stage, pressure is gradually increased to deliver a consistent and reliable flow. This multi-stage design ensures the performance needed for everyday applications, from running taps and showers to supporting a wide range of domestic and commercial water systems.
Closed Design Impeller
Closed impellers are securely mounted onto the pump shaft to deliver efficient fluid handling while reducing axial thrust during rotor operation. Their enclosed design enhances hydraulic efficiency, making them an essential component of the Horizontal Multistage Water Pump.
Superior Hydraulic Performance: Constructed with enclosed front and rear shrouds, closed impellers guide water smoothly through the vanes and towards the outlet. This optimised flow path minimises energy loss, resulting in stable performance, higher efficiency, and reliable water delivery.
Reduced Risk of Cavitation: The enclosed impeller design helps maintain a consistent flow of water, reducing the likelihood of air bubble formation and collapse that can lead to cavitation. By minimising this risk, the pump is better protected against premature wear and internal damage.
Extended Service Life: By lowering axial thrust, closed impellers reduce stress on the shaft and bearings, helping to minimise maintenance requirements and operating costs. The result is a more durable Horizontal Multistage Centrifugal Pump with a longer service life and dependable long-term performance.
The impeller and diffuser are manufactured from premium stainless steel to withstand continuous exposure to water while resisting corrosion and wear. This durable construction ensures long-lasting performance and dependable operation throughout the service life of the Horizontal Multistage Water Pump.
Smooth Surface for Improved Hydraulic Efficiency: Each impeller is precision-polished to achieve a smooth surface finish that reduces friction and minimises turbulence as water passes through the pump. By improving flow efficiency and lowering hydraulic resistance, the pump delivers consistent performance while reducing unnecessary energy consumption.
Excellent Thermal Stability: High-grade stainless steel offers excellent dimensional stability across a wide range of operating temperatures. Whether pumping cold or warm clean water, the impeller maintains its mechanical strength and shape with minimal expansion or contraction. This ensures reliable hydraulic performance under varying temperature conditions and supports consistent operation in demanding applications.
Backplate And Mechanical Seal For Generator Protection
The backplate and mechanical seal form a critical barrier between the pump’s hydraulic section and its electric motor. Their primary function is to prevent water from entering the motor housing, protecting the electrical components from moisture, short circuits, and premature failure. A gasket or sealing washer is also incorporated to create a secure, leak-resistant seal around the assembly.
As the impeller generates centrifugal force, water is directed efficiently towards the discharge outlet while the backplate and mechanical seal maintain the integrity of the motor compartment. In addition to preventing leakage, these components provide stable support for the pump shaft, helping to maintain precise alignment during operation. This reduces vibration, minimises shaft movement, and contributes to smoother performance, improved reliability, and a longer service life for the HM160-15T Horizontal Multistage Water Pump.
Positioned between the backplate and the mechanical seal, the circlip plays an important role in securing the mechanical seal assembly during pump operation. It helps transfer rotational loads while keeping the seal firmly seated, ensuring a consistent seal and protecting the pump from leakage throughout continuous use.
For the HM80 and HM150 series, however, this component is not fitted. In Davey Water Products’ official documentation, the circlip is referred to as a clip spring, and these models are designed to operate without it while maintaining reliable sealing performance.
EPDM O-Ring And Spacers
O-rings are installed throughout the HM160-15T Horizontal Multistage Water Pump to create secure, leak-resistant seals between adjoining components. By preventing water from escaping through internal joints, these seals help maintain hydraulic efficiency and reliable pump performance.
Manufactured from EPDM (ethylene propylene diene monomer) rubber, the O-rings offer excellent resistance to heat, water, ageing, and weathering. Compared with many conventional rubber materials, EPDM provides superior durability in high-temperature applications, making it well suited for continuous operation in the HM160-15T water pump. Multiple O-rings are strategically positioned within the volute casing and other critical sealing points to safeguard against leakage.
Precision Spacers For Stable Operation: Precision spacers are fitted between rotating components to maintain the correct clearances throughout the pump assembly. By preventing direct contact between moving parts, they reduce wear, minimise friction, and help protect internal components from premature damage.
In addition to maintaining precise clearances, the spacers help minimise vibration by reducing unnecessary movement between rotating components. This added stability lowers mechanical stress, promotes smoother operation, and helps extend the service life of bearings and other critical pump parts.
To ensure long-lasting durability, most internal components of the Horizontal Multistage Water Pump—including the impellers, mechanical seal housing, spacers, circlip, and volute casing—are manufactured from SUS304 (304 stainless steel). This corrosion-resistant material provides excellent strength and reliability for continuous water-handling applications.
The pump shaft is constructed from SUS316 stainless steel, offering enhanced corrosion resistance and higher mechanical strength. As the primary component responsible for transmitting rotational power from the motor to the impellers, the SUS316 shaft delivers the durability and performance required for demanding operating conditions.
Operating Limits of HM160-15T Water Pump
| Operating Limits | |
| Maximum continuous flow rate | 200L / min (53 US gallons) |
| Maximum operating pressure | 700 kPa* (102 psi) |
| Maximum current | 10 amp |
| Cut-in pressure range | 80% of pump shut-off head |
| Maximum water temperature | 65°C (149°F) |
*Maximum operating pressure may be increased to 820 kPa, depending on the pressure rating of the optional pressure tank.
*L denotes litres (L).
*kPa (kilopascal) is the standard unit of pressure.
*psi (pounds per square inch) is an imperial unit used to measure pressure.
*A (ampere) is the standard unit of electrical current, commonly abbreviated as amp.
* °C (degrees Celsius) and °F (degrees Fahrenheit) indicate temperature measurements, with Fahrenheit primarily used in the United States.
Hydraulic Performance of Davey's HM160-15T Horizontal Multistage Pump With Torrium2
| Single Phase Models | HM160 |
Motor: P1 kW P2 kW | HM160-15T – P1 kW: 1.9 HM160-15T – P2 kW: 1.5 |
Amps: Run Start | HM160-15T – Run: 8 HM160-15T – Start: 40 |
Ports (BSP): Suction Discharge | All – Suction: 1.5 F All Discharge – 1 M |
| Nominal operating pressure (kPa) | HM160-15T: 340 |
| Maximum pump pressure (kPa) | HM160-15T: 460 |
| Tank air pre-charge (kPa) | HM160-15T: 320 |
| Nominal flow (L / min) | All in 160 L / min (42 US gallons) |
Hydraulic Loss of HM160-15T Pump With Torrium2
HM160-15T Pump's Electrical Data
| Pump | |
| Speed | 2900 rpm |
Supply voltage
| 230±10% 415±10% |
| Supply frequency | 50 Hz |
Enclosure class
| IP55 IP56 |
| Insulation class | Class F |
| Torrium2 | |
| Voltage | 220V-240V ± 10% |
| Phase | Single |
| Hz | 50 / 60 |
| IP rating | IP56 |
| Maximum load current | 10A |
| Maximum motor size @ 240V input | 1.8 kW |
| Surge protection | Varistor |
*RPM (revolutions per minute) indicates the rotational speed of the pump motor or shaft.
*Hz (Hertz) is the standard unit used to measure electrical frequency.
*A (ampere) is the standard unit of electrical current, commonly abbreviated as amp.
*kW (kilowatt) is the standard unit used to measure electrical power.
Materials of Construction For HM160-15T Horizontal Multistage Water Pump
| Materials of construction | |
| Part | Material |
| Casing | 304 stainless steel |
| Impellers | 304 stainless steel |
| Stages (casing) | 304 stainless steel |
| Pump shaft | 316L stainless steel |
| Stage centring device | 304 stainless steel |
Mechanical seal:
| Carbon Ceramic 316 stainless steel EPDM |
| O-ring | EPDM |
| Plug | 316L stainless steel |
| Motor shell & lantern bracket | Aluminium with baked polyester powder coat finish |
| Motor feet | Xenoy |
| Fan cowl / rear foot (models up to 1.05kW) | Polypropylene |
Horizontal Multistage Pump's Q-H Curve For HM160 & HM270
Included In The Box
Horizontal Multistage Water Pump – HM160-15T
Torrium2
User Manual
Proof of Purchase
24 Months of Manufacturer Warranty (Increased by Another 6 Months with e-Warranty Scheme)
Downloads
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