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- Specification
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The Janus P180 axial piston pump is designed for operation on tap water and are available in displacements of 135.0cc/rev & 225.0cc/rev.The maximum operating pressure of the unit is 160 bar (2320 PSI) and is available in 3 port boosted design, with a direction of rotation clockwise or anticlockwise viewed on the pump shaft. To avoid any contamination the Janus axial piston pumps are completely oil free and operate with water as their coolant / lubricant. |
Mechanical seals are advised for constant duty applications or duty above 2500 hours between service intervals.
| Displacement (cc/rev) | Max: | 225.0 |
| Min: | 135.0 | |
| Max. RPM | Unboosted: | - |
| Boosted: * | 2000 | |
| Construction Materials | A.I.S.I 316, Polymer & Martensitic Stainless steel | |
| Max. Input Power (kW) | 114 | |
| Max. Water Flow (l/min) | 430 | |
| Max. Cont. Pressure (Bar) | 160 | |
| Weight (kg) | 82 | |
| Temperature (°C) | Max: ** | 50 |
| Min: *** | 2 |
Operating Conditions and Compliance for Janus P180 Axial Piston Pump
- High-Speed Capability: Pump speeds above 2000 rpm are achievable under higher boost conditions. For precise specifications and performance guidance, consult Water Hydraulics Company (TWHC).
- High-Temperature Operation: The pump can operate at elevated temperatures; please contact TWHC for detailed recommendations.
- Low-Temperature & Antifreeze Options: For sub-zero environments, we provide environmentally friendly antifreeze solutions. Request the Monopropylene Glycol datasheet and consult TWHC for expert advice.
ATEX Certification for Explosive Atmospheres
The Janus P180 Axial Piston Pump is ATEX-approved, complying with Directive 94/9/EC for equipment and protection systems intended for use in potentially explosive atmospheres.
Product Group, Category, Zones:
II 2GD ck T6 T85°C +1°C ≤ TA ≤ +40°C
This certification ensures safe and reliable operation in hazardous environments, making the Janus P180 ideal for industries requiring strict compliance.
Material Construction and Corrosion Resistance
Manufactured primarily from 316 stainless steel, the Janus P180 offers exceptional resistance to corrosive fluids. Internal materials can be customised to suit specific applications, including tap water, sea water, and various other non-flammable fluids. This flexibility ensures long-term durability and performance in challenging conditions.
PDF files are widely supported and can be opened using popular readers such as Google Chrome or Adobe PDF Reader. These files provide easy access to technical datasheets, manuals, and product specifications for our water hydraulic solutions.
For 3D modelling and design, we supply STEP files compatible with leading CAD software packages, including SolidWorks, AutoCAD 3D, and even Blender. These files allow engineers and designers to integrate Water Hydraulics components—such as the Janus P180 Axial Piston Pump—into their projects with precision and efficiency.
- Info
- Specification
- Performance
- Download
The Janus P180 axial piston pump is designed for operation on tap water and are available in displacements of 135.0cc/rev & 225.0cc/rev.The maximum operating pressure of the unit is 160 bar (2320 PSI) and is available in 3 port boosted design, with a direction of rotation clockwise or anticlockwise viewed on the pump shaft. To avoid any contamination the Janus axial piston pumps are completely oil free and operate with water as their coolant / lubricant. |
Mechanical seals are advised for constant duty applications or duty above 2500 hours between service intervals.
| Displacement (cc/rev) | Max: | 225.0 |
| Min: | 135.0 | |
| Max. RPM | Unboosted: | - |
| Boosted: * | 2000 | |
| Construction Materials | A.I.S.I 316, Polymer & Martensitic Stainless steel | |
| Max. Input Power (kW) | 114 | |
| Max. Water Flow (l/min) | 430 | |
| Max. Cont. Pressure (Bar) | 160 | |
| Weight (kg) | 82 | |
| Temperature (°C) | Max: ** | 50 |
| Min: *** | 2 |
Operating Conditions and Compliance for Janus P180 Axial Piston Pump
- High-Speed Capability: Pump speeds above 2000 rpm are achievable under higher boost conditions. For precise specifications and performance guidance, consult Water Hydraulics Company (TWHC).
- High-Temperature Operation: The pump can operate at elevated temperatures; please contact TWHC for detailed recommendations.
- Low-Temperature & Antifreeze Options: For sub-zero environments, we provide environmentally friendly antifreeze solutions. Request the Monopropylene Glycol datasheet and consult TWHC for expert advice.
ATEX Certification for Explosive Atmospheres
The Janus P180 Axial Piston Pump is ATEX-approved, complying with Directive 94/9/EC for equipment and protection systems intended for use in potentially explosive atmospheres.
Product Group, Category, Zones:
II 2GD ck T6 T85°C +1°C ≤ TA ≤ +40°C
This certification ensures safe and reliable operation in hazardous environments, making the Janus P180 ideal for industries requiring strict compliance.
Material Construction and Corrosion Resistance
Manufactured primarily from 316 stainless steel, the Janus P180 offers exceptional resistance to corrosive fluids. Internal materials can be customised to suit specific applications, including tap water, sea water, and various other non-flammable fluids. This flexibility ensures long-term durability and performance in challenging conditions.
PDF files are widely supported and can be opened using popular readers such as Google Chrome or Adobe PDF Reader. These files provide easy access to technical datasheets, manuals, and product specifications for our water hydraulic solutions.
For 3D modelling and design, we supply STEP files compatible with leading CAD software packages, including SolidWorks, AutoCAD 3D, and even Blender. These files allow engineers and designers to integrate Water Hydraulics components—such as the Janus P180 Axial Piston Pump—into their projects with precision and efficiency.
Inlet Conditions
Our Janus P180 Axial Piston Pumps are available in a three-port boosted configuration, designed to deliver enhanced performance in demanding water hydraulic systems. This setup ensures improved flow characteristics and reliability for industrial applications where efficiency and durability are critical.
3 Port Design
When water is fed to the pump at a minimum of 2.5 bar by either a very high pressure water main, a head or column of water in
excess of 25m in height or by an external boost pump, then the 3 port design unit should be incorporated. It separates the inlet water of the pump from the internal leakage water which must be piped away to a low pressure sump or drain if possible. Low casing pressure will prolong the shaft seals life and prevent low pressure cavitation issues. The minimum case pressure and maximum inlet pressure is desired, a minimum positive inlet pressure of 2.0 bar above T pressure is required at all times.
Boosted
Boosted pumps can rotate in either direction. Inlet and outlet ports change according to shaft rotation. Maximum casing pressure 2.5 bar.
Motor Pump Assemblies
We offer a standard range of bell housings and couplings that connect pumps directly to the B5 electric motor flange. For detailed options and combinations, refer to our **Pick-A-Pack datasheet**. To ensure reliable operation, avoid inducing axial or radial loads on the pump’s output shaft. Whenever possible, use a three-part gear-style coupling. If the drive shaft and spigot location maintain concentricity within 0.05 mm, you may use direct inline drive assemblies.
Temperature
These units deliver full performance between **2°C and 50°C**. When operating below freezing, request our **Monopropylene Glycol datasheet** for an environmentally friendly antifreeze solution. Although operation above 50°C is possible, it will reduce the unit’s volumetric efficiency. In such cases, consult TWHC and specify the maximum operating temperature for guidance.
Filters
Always pre-filter incoming water to a **nominal rating of 10 µm (25 µm absolute)** with a filter element rated at **β10 = 75 or better**. For closed-loop systems, return line filtration is highly recommended. You may also consider high-pressure filtration; however, since these filters are manufactured from stainless steel, they represent a more costly option.
Fluid
Use drinking water that complies with **EEC Directive 98/83/EC** as the standard. If you are uncertain about water quality, consult TWHC. Our standard product also operates effectively on technical water such as distilled, RO, or demineralised water. Depending on your environment, we may need to adjust seal materials or construction.
Additionally, the pumps can run on non-flammable fluids like **Glycol 95/5 mixtures**, provided internal clearances are modified accordingly. Always specify the exact operating fluid in all enquiries and orders. While the standard construction can handle seawater, its higher corrosion potential may require a more noble material for long-term durability.