PL Series High-Efficiency Cooling TowerFor High-Efficiency Data Centers
A high-efficiency cooling tower designed for data center cooling systems, combining efficient water saving with low-noise operation.
The PL Series is the flagship cooling tower line of LANXUN Technology for data centers and precision equipment rooms. It adopts fourth-generation high-efficiency fill and an adaptive variable-flow water distribution system, maintaining excellent heat exchange efficiency across a wide 20%–120% flow range. The tower body uses G235 highly corrosion-resistant galvanized steel with modular FRP panels, capable of withstanding Category 12 typhoons. Field-tested at Guangzhou Tianhe Park, it achieved a COP as high as 5.84 with noise as low as 48.6dB(A), ideally suited to cooling demands in urban cores and residential areas.
Key Highlights
48.6dB(A) Ultra-Quiet
Airfoil low-noise fan and silencer inlet design achieve noise as low as 48.6dB(A) at 1m, meeting environmental requirements in urban cores.
COP 5.84 Measured Efficiency
Field-tested COP of 5.84 at the Guangzhou Tianhe Park project, far exceeding the national Grade-1 energy-efficiency level and saving over 30% in annual electricity costs.
G235 Galvanized Steel, Typhoon-Resistant
The entire frame uses G235 highly corrosion-resistant galvanized steel, verified for Category 12 typhoon conditions for reliable operation in coastal and high-wind areas.
20%–120% Variable-Flow Distribution
Adaptive variable-flow nozzles and a gravity-type distribution tray keep water evenly distributed under both very low flow and overload conditions, with no dry-spot risk.
Modular Quick-Assembly Structure
FRP panels assembled modularly, shipped in standard 40-foot containers, cutting on-site assembly time by 50%.
Working Principle and Structural Features
The following content is excerpted from the PL Series High-Efficiency Cooling Tower product manual
Working Principle
The new PL series ultra-quiet eco-friendly cooling tower adopts world-leading automated production equipment together with new technologies, new materials, and new processes, delivering a new generation of low-energy, high-efficiency products. With superior cooling performance, excellent noise handling, easy maintenance, and durability, it is an ideal solution for high-efficiency data center cooling systems.
The PL series is a patented pressure-equalizing, variable-flow intelligent cooling tower for high-efficiency data centers: the simple external intake piping is replaced by a prefabricated constant-pressure supply trough with a low-resistance, anti-siphon, hydraulically balanced internal intake system. This prevents siphon effects from disturbing even water distribution under variable flow, ensures even water distribution and stable cooling capacity during variable-flow operation, and achieves even water distribution across a 20%–120% flow range.
Design conditions: inlet water temperature 37℃, outlet water temperature 32℃, wet-bulb temperature 28℃, dry-bulb temperature 31.5℃, atmospheric pressure 9.94×10⁴Pa, wind pressure design <47m/s. The PL series is certified to the US CTI standard STD-201(21) for thermal performance and holds US FM and EU CE certifications.
High-Efficiency Axial Fan
The aluminum-alloy multi-blade impeller maintains high efficiency and small static-pressure loss even at low speed, with a normal service life of more than 15 years; an ultra-quiet FRP fan is optional, reducing noise by up to 10~25dB(A).
Fully Enclosed Dedicated Motor
A high-efficiency fully enclosed motor designed specifically for the hot, humid environment of cooling towers, with a waterproof bearing design and long-lasting bearing lubrication, significantly reducing maintenance costs; an IE2 energy-efficiency motor is available.
Belt and Gear Drive
Fans smaller than 3600mm use imported belt drives rated for continuous operation and 150% shaft power; fans 3600mm and larger use gear drives with NTN, NSK, or SKF bearings.
G235 Galvanized Steel Frame
The tower frame and panels are made of highly corrosion-resistant, extra-heavy galvanized steel; the top-grade G235 frame effectively withstands Category 12 typhoons and magnitude-8 earthquakes, has no weld points, and allows a recyclable-material rate of over 95%.
Convenient Maintenance Design
Maintenance platforms and walkways are provided at the gear reducer, the fan, and inside the tower; the access door is made of 304 stainless steel, and an external ladder, safety cage, and tower-top guardrail come standard for simple, safe maintenance.
Technical Specifications
| Model | Cooling Water Flow (m³/h) | Fan Diameter (mm) | Motor Power (kW) | Dimensions L×W×H (mm) | Operating Weight (kg) | Noise dB(A) |
|---|---|---|---|---|---|---|
| PL-2102L | 100 | 1500 | 4.0 | 3200×2400×3800 | 2800 | 48.6 |
| PL-2103L | 125 | 1500 | 5.5 | 3400×2600×4000 | 3200 | 49.2 |
| PL-2104L | 150 | 1800 | 7.5 | 3600×2800×4200 | 3800 | 50.1 |
| PL-2105L | 175 | 1800 | 7.5 | 3800×3000×4400 | 4200 | 50.8 |
| PL-2106L | 200 | 2000 | 11.0 | 4000×3200×4600 | 4800 | 51.5 |
| PL-2107L | 225 | 2000 | 11.0 | 4200×3400×4800 | 5200 | 52.0 |
| PL-2108L | 250 | 2200 | 15.0 | 4400×3600×5000 | 5800 | 52.6 |
| PL-2109L | 275 | 2200 | 15.0 | 4600×3800×5200 | 6200 | 53.1 |
| PL-2110L | 300 | 2400 | 18.5 | 4800×4000×5400 | 6800 | 53.8 |
| PL-2111L | 325 | 2400 | 18.5 | 5000×4200×5600 | 7200 | 54.2 |
| PL-2112L | 350 | 2600 | 22.0 | 5200×4400×5800 | 7800 | 54.8 |
| PL-2113L | 375 | 2600 | 22.0 | 5400×4600×6000 | 8200 | 55.2 |
| PL-2114L | 400 | 2800 | 30.0 | 5600×4800×6200 | 8800 | 55.8 |
| PL-2115L | 425 | 2800 | 30.0 | 5800×5000×6400 | 9200 | 56.1 |
| PL-2116L | 450 | 3000 | 37.0 | 6000×5200×6600 | 9800 | 56.6 |
| PL-2117L | 475 | 3000 | 37.0 | 6200×5400×6800 | 10200 | 56.9 |
| PL-2118L | 500 | 3200 | 45.0 | 6400×5600×7000 | 10800 | 57.3 |
| PL-2119L | 525 | 3200 | 45.0 | 6600×5800×7200 | 11200 | 57.6 |
| PL-2120L | 550 | 3400 | 55.0 | 6800×6000×7400 | 11800 | 58.0 |
| PL-2121L | 575 | 3400 | 55.0 | 7000×6200×7600 | 12200 | 58.3 |
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Images are from the PL Series High-Efficiency Cooling Tower product manual
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