Danfoss 180B0021 PAHT 32 High-Pressure Water Pump
The Danfoss 180B0021 PAHT 32 is a high-pressure axial piston pump built specifically for technical water applications. Unlike standard oil-lubricated pumps, this unit uses the water it pumps as its own lubricant, eliminating the need for separate lubrication systems and making it virtually maintenance-free over its service life. Its AISI 316 stainless steel construction stands up well to the demands of deionized, demineralized, and ultra-pure water environments where corrosion resistance matters.
What makes this pump stand out is how much performance it packs into a compact, lightweight housing. It delivers up to 17.8 GPM of flow and can reach pressures as high as 2321 psig, all while running smoothly with very little pressure pulsation, so there's no need to add pulsation dampeners downstream. It can be mounted horizontally or vertically and driven by either an electric motor or a combustion engine, giving installers flexibility depending on the setup.
Beyond general industrial water handling, the PAHT 32 shows up in some fairly specialized places, including electronics manufacturing cleaning lines, automotive parts washing, adiabatic cooling and humidification systems, and even dust suppression and NOx-reduction setups. Its wide speed control range and ability to recirculate high flow without overheating make it a practical choice anywhere consistent, high-pressure technical water is required.
Key Features
- Water-lubricated design eliminates the need for oil or grease
- Axial piston construction delivers high mechanical efficiency
- Compact, lightweight housing compared to similarly rated pumps
- Negligible pressure pulsation removes the need for dampeners
- Wide speed control range for flexible flow adjustment
- High recirculation capability without overheating
- Can be mounted horizontally or vertically
- Compatible with electric motor or combustion engine drive
Applications
- Ultra-pure water cleaning in electronics manufacturing (LCD/LED components)
- Cleaning systems for automotive parts production
- Adiabatic cooling systems for server rooms and industrial facilities
- Humidification in offices, greenhouses, and dairies
- Dust suppression and odor control in paper, textile, and wood production
- NOx emission reduction in diesel engines and gas turbines
- Deionized and demineralized water handling
- General industrial technical water treatment
Specifications
- Part Number: 180B0021
- Type Designation: PAHT 32
- Product Type: Positive displacement axial piston pump
- Housing Material: AISI 316 stainless steel
- Displacement: 32 cm³/rev
- Max Flow Rate: 17.8 GPM (68.5 l/min)
- Max Pressure: 2321 psig (160 bar)
- Max Speed: 2400 rpm
- Min Continuous Speed: 1000 rpm
- Port Size: G1 1/4 inlet, G3/4 outlet (BSPP threaded)
Frequently Asked Questions
Q: What type of water is the Danfoss 180B0021 PAHT 32 designed for?
A: It's built for technical water, including deionized, demineralized, and ultra-pure water that has gone through reverse osmosis treatment.
Q: Does this pump need external lubrication?
A: No. The pump is lubricated entirely by the water passing through it, so no oil or grease is required.
Q: Can the PAHT 32 be run at variable speeds?
A: Yes. It has a wide speed control range and can be operated between roughly 1000 and 2400 rpm depending on the flow needed.
Q: Is this pump suitable for continuous industrial use?
A: Yes, its stainless steel construction and water lubrication are designed to support long-term, low-maintenance industrial operation.
Q: Can it be powered by something other than an electric motor?
A: Yes. The pump can also be driven by a combustion engine, which adds flexibility for mobile or off-grid setups.
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