Danfoss 180B0031 PAHT 2 Ultra-Pure Technical Water Pump
If you're running a system that depends on truly clean water, the Danfoss 180B0031 PAHT 2 pump is built to handle it without adding contamination of its own. This axial piston pump is designed specifically for ultra-pure water, deionized water, and demineralized water, so it's a natural fit anywhere that water quality can't be compromised. Instead of relying on oil or grease, the pump uses the water itself as its lubricant, which keeps the fluid path clean and eliminates the risk of oil residue mixing into your process water.
What makes this pump practical for real-world use is how little it asks of you. There's no gearbox, no belt drive, and very few moving parts, so upkeep stays simple and service intervals stretch out. The compact, lightweight housing means it can be mounted horizontally or vertically depending on your layout, and it pairs easily with an electric motor or combustion engine. Whether you're feeding a cleaning line for electronic components, running a humidification system, or supporting a reverse osmosis setup, this pump delivers consistent, pressure-independent flow.
Reliability is really the heart of this product. Because it's a positive displacement pump, flow output stays tied to shaft speed rather than fluctuating with downstream pressure, giving you predictable performance even as conditions change. Combined with a stainless steel construction and a design built for continuous duty, the 180B0031 is the kind of pump you install once and stop thinking about.
Key Features
- Axial piston, positive displacement design for consistent flow regardless of pressure
- Water-lubricated operation eliminates oil or grease contamination
- Low-complexity build with few moving parts for easier maintenance
- Compact, lightweight housing suitable for horizontal or vertical mounting
- Compatible with electric motor or combustion engine drives
- Negligible pressure pulsation without the need for dampeners
- High recirculation capability without overheating
Applications
- Ultra-pure and deionized water systems
- Electronic component cleaning (LCD and LED manufacturing)
- Automotive parts cleaning lines
- Adiabatic cooling and humidification systems
- Reverse osmosis and demineralized water processes
- Industrial water treatment and desalination support
Specifications
- Model: PAHT 2
- Part Number: 180B0031
- Pump Type: Axial piston, positive displacement
- Inlet Port: G1/2 BSPP threaded
- Outlet Port: G1/4 BSPP threaded
- Maximum Flow: 1.0 GPM (4.1 l/min)
- Maximum Outlet Pressure: 1450 psig (100 bar)
- Maximum Shaft Speed: 3000 rpm
- Minimum Continuous Speed: 1000 rpm
- Housing Material: Stainless steel (AISI 304/316)
Frequently Asked Questions
Q: Can the Danfoss 180B0031 be mounted in any orientation?
A: Yes, the compact housing allows it to be installed either horizontally or vertically depending on the layout of your system.
Q: Does this pump require external lubrication?
A: No, the pump is water-lubricated, so it does not need oil or grease to operate and stays maintenance-free over its service life.
Q: What drive options work with this pump?
A: The 180B0031 can be powered by either an electric motor or a combustion engine, depending on your setup.
Q: Is this pump only suitable for marine use?
A: No, this pump is widely used across industrial, manufacturing, and water treatment settings, not just marine applications.
Q: How does flow stay consistent under changing pressure conditions?
A: Because it's a positive displacement pump, flow output is tied to shaft speed rather than discharge pressure, keeping performance predictable.
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