Danfoss PAHT 90 High-Pressure Water Pump (Part Number 180B0089)
Anyone who works with high-purity or technical water systems knows the frustration of pumps that need constant oil changes, seal replacements, or babysitting. The Danfoss PAHT 90 was built to remove that headache entirely. It's an axial piston pump that runs on the water itself as its lubricant, so there's no oil to contaminate your process and no separate lubrication circuit to maintain. That makes it a natural fit for industries where even a trace of oil in the water stream would be a costly problem, from electronics manufacturing to pharmaceutical-grade water treatment.
Built from AISI 316 stainless steel, the 180B0089 is designed to handle demanding, continuous-duty environments without corroding or degrading over time. It can move water at pressures up to 160 barg and flows approaching 150 liters per minute, all while staying compact and lightweight compared to other pumps in its class. Whether it's mounted horizontally or vertically, paired with an electric motor or a combustion engine, it adapts to the layout of the system rather than forcing engineers to build around it.
What really sets this pump apart is how little attention it needs once installed. Service intervals can stretch up to 8,000 hours, which means fewer shutdowns and lower long-term maintenance costs. For facilities running reverse osmosis systems, high-pressure cleaning lines, or humidification and cooling equipment, that kind of reliability translates directly into fewer surprises and a lower total cost of ownership.
Key Features
- Water-lubricated axial piston design eliminates the need for oil
- Zero risk of oil contamination in the pumped water
- AISI 316 stainless steel construction for corrosion resistance
- Compact, lightweight design compared to similarly rated pumps
- Can be installed horizontally or vertically
- Compatible with electric motor or combustion engine drive
- Service intervals of up to 8,000 hours
- High mechanical efficiency reduces energy consumption and heat buildup
Applications
- Deionized (DI) and ultra-pure water systems
- Reverse osmosis (RO) and desalination systems
- Electronics manufacturing cleaning (LCD and LED production)
- Automotive parts cleaning processes
- Adiabatic cooling and humidification systems
- High-pressure industrial cleaning equipment
- Technical water boosting applications
Specifications
- Part Number: 180B0089
- Model: PAHT 90
- Geometric Displacement: 90 cm³/rev (5.49 in³/rev)
- Max. Outlet Pressure: 160 barg / 2,320 psig
- Min. Outlet Pressure: 30 barg / 435 psig
- Max. Flow: 149.6 l/min / 38.9 gpm
- Max. Speed: 1,800 rpm
- Min. Continuous Speed: 1,000 rpm
- Inlet Pressure, Continuous: 0-6 barg / 0-87 psig
- Max. Inlet Pressure, Peak: 20 barg / 290 psig
- Housing Material: AISI 316 stainless steel or higher
- Port Size: Threaded high-pressure inlet and outlet connections sized for the PAHT 50-90 pump series
Frequently Asked Questions
Q: Does the PAHT 90 require any oil for lubrication?
No. The pump uses the pumped water itself as its lubricant, so no oil is ever introduced into the system.
Q: Can the PAHT 90 be mounted in any orientation?
Yes. It's designed to be installed either horizontally or vertically depending on the layout of your system.
Q: What drives the PAHT 90 pump?
It can be powered by either an electric motor or a combustion engine, depending on the application.
Q: How often does the pump need servicing?
Typical service intervals can reach up to 8,000 hours of operation, though actual intervals depend on water quality and duty cycle.
Q: Is the PAHT 90 suitable for reverse osmosis systems?
Yes. Its high-pressure output and stainless steel construction make it well suited for RO and other demanding water treatment applications.
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