For international buyers seeking a reliable FRP low noise counterflow cooling tower supplier, the DBNL3-50 delivers measurable operational advantages in urban commercial projects and light industrial settings. Engineered with a spiral spray nozzle system and large-surface fill media, this model maximizes thermal exchange efficiency while suppressing water splashing noise to below 63 dB(A). As an original manufacturer exporting directly from China, we provide customized voltage options (380V/415V/460V), anti-freezing basin heaters, and stainless steel hardware upon request. Our streamlined production-to-shipping lead time averages 15–20 working days, with professional 3D layout drawings and installation guidance included. By choosing our factory-direct channel, you eliminate markup layers, gain direct access to our R&D team for retrofit advice, and secure consistent spare parts supply for the DBNL3-50’s 15-year design life. All units undergo full performance testing per CTI standards before crating, ensuring plug-and-play readiness at your project site.FRP DBNL3-50 Low Noise Cooling Tower Supplier | China Factory Export for Industrial Process
Hebei Fortis Technology Co., Ltd Produktbroschüre
Product Advantages
Acoustic Engineering for Noise-Sensitive Urban Environments
The DBNL3-50 is purpose-built to meet stringent urban noise restrictions, operating at a whisper-quiet 62 dB(A) – comparable to normal conversation levels. This is achieved through a combination of a low-speed centrifugal fan, a specially designed water splash-suppression fill, and an oversized inlet silencer chamber. Unlike axial-flow towers that generate high-frequency whine, our counterflow design produces a low-frequency hum that dissipates quickly over distance, making this model the preferred choice for rooftop installations near hospitals, hotels, residential complexes, and office towers where nighttime operation permits are non-negotiable.
GFRP Construction with Full Corrosion Resistance
The entire casing, fan stack, and cold-water basin are molded from high-grade GFRP (Glass-Fiber Reinforced Polyester) containing UV-stabilized resins and flame-retardant additives. This material outperforms metal-clad towers in coastal or industrial atmospheres where salt spray, chemical fumes, or acidic runoff are present. The gel-coat surface remains glossy and chalk-free for over a decade, eliminating the need for annual repainting or anti-rust treatments. Furthermore, the seamless one-piece basin design prevents leakage at seam joints – a common failure point in bolted metal towers – ensuring zero water loss and minimal makeup water costs over the equipment's lifespan.
True Counterflow Thermal Efficiency with Anti-Clog Nozzles
In this counterflow configuration, hot water enters from the top and cascades downward through high-density PVC fill, while ambient air is drawn upward from the bottom louver in the opposite direction. This pure countercurrent exchange delivers a closer approach to wet-bulb temperature (as tight as 4°C) compared to crossflow designs. Our proprietary large-orifice spiral spray nozzles operate at low pressure (only 0.035 MPa), producing large water droplets that resist clogging from debris or scaling. This translates to sustained cooling capacity at 50 m³/h without performance drift, even when using recycled or poor-quality makeup water – a critical advantage for plastic injection molding and compressor jacketing applications.
Parameter Specifications
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Product |
Low Noise Type Counterflow Cooling Tower |
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Model |
τ=27℃ |
Main Dimensions (mm) |
Air Volume m³/h |
Fan Diameter (mm) |
Motor Power (kw) |
weight (kg) |
inlet pressure 10⁴Pa |
noise at 10m dB (A) |
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Total Height |
Maximum Diameter |
self-weight |
operating weight |
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DBNL3-12 |
15 |
2033 |
1210 |
7200 |
700 |
0.6 |
206 |
484 |
1.96 |
40.3 |
|
|
DBNL3-20 |
24 |
2123 |
1460 |
12400 |
800 |
0.8 |
230 |
514 |
2 |
41.1 |
|
|
DBNL3-30 |
35 |
2342 |
1912 |
18000 |
1200 |
0.8 |
406 |
956 |
2.21 |
43.5 |
|
|
DBNL3-40 |
46 |
2842 |
1912 |
21500 |
1200 |
1.1 |
478 |
1118 |
2.6 |
43.5 |
|
|
DBNL3-50 |
57 |
2830 |
2215 |
28000 |
1400 |
1.5 |
596 |
1480 |
2.65 |
44.7 |
|
|
DBNL3-60 |
68 |
3080 |
2215 |
32300 |
1400 |
1.5 |
642 |
1592 |
2.9 |
45.7 |
|
|
DBNL3-70 |
79 |
3094 |
2629 |
39200 |
1600 |
2.2 |
790 |
2064 |
2.78 |
47 |
|
|
DBNL3-80 |
92 |
3344 |
2629 |
43400 |
1600 |
2.2 |
875 |
2243 |
3.03 |
47.5 |
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DBNL3-100 |
114 |
3294 |
3134 |
56000 |
1800 |
3 |
973 |
3064 |
2.86 |
50 |
|
|
DBNL3-125 |
142 |
3544 |
3134 |
67200 |
1800 |
4 |
1063 |
3290 |
3.15 |
50.7 |
|
|
DBNL3-150 |
171 |
3553 |
3732 |
84000 |
2400 |
4 |
1695 |
4125 |
2.9 |
52 |
|
|
DBNL3-175 |
200 |
3803 |
3732 |
94300 |
2400 |
5.5 |
1835 |
4461 |
3.15 |
53 |
|
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DBNL3-200 |
231 |
3835 |
4342 |
112000 |
2800 |
5.5 |
2132 |
5592 |
3.01 |
54.6 |
|
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DBNL3-250 |
283 |
4085 |
4342 |
134300 |
2800 |
7.5 |
2344 |
6365 |
3.26 |
55.6 |
|
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DBNL3-300 |
334 |
4223 |
5134 |
168000 |
3400 |
7.5 |
3558 |
9229 |
3.5 |
56.8 |
|
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DBNL3-350 |
395 |
4473 |
5134 |
187400 |
3400 |
11 |
3860 |
9906 |
3.75 |
57.3 |
|
|
DBNL3-400 |
455 |
4618 |
6044 |
224000 |
3800 |
11 |
4300 |
12086 |
3.6 |
58.8 |
|
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DBNL3-450 |
514 |
4868 |
6044 |
242000 |
3800 |
11 |
4646 |
13464 |
3.85 |
58.8 |
|
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DBNL3-500 |
576 |
5219 |
6746 |
280000 |
4200 |
15 |
5768 |
16258 |
3.7 |
60 |
|
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DBNL3-600 |
680 |
5719 |
6746 |
302200 |
4200 |
18.5 |
6570 |
18360 |
4.2 |
61 |
|
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DBNL3-700 |
790 |
5589 |
7766 |
393500 |
5000 |
18.5 |
6915 |
23194 |
3.95 |
61.4 |
|
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DBNL3-800 |
890 |
6089 |
7766 |
408000 |
5000 |
22 |
7983 |
25982 |
4.45 |
61.4 |
|
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DBNL3-900 |
1035 |
6040 |
8836 |
505200 |
6000 |
22 |
8934 |
32568 |
4.25 |
62.6 |
|
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DBNL3-1000 |
1139 |
6540 |
8836 |
510300 |
6000 |
30 |
10560 |
36420 |
4.75 |
63.1 |
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Features |
The FRP cooling tower serves not only as a temperature regulator but also delivers an efficient, durable, and maintenance-free solution with optimized lifecycle costs. By harnessing the unique properties of FRP materials, it fundamentally addresses the critical challenges of corrosion and lifespan limitations in harsh operating environments, making it the go-to choice for cooling systems in modern industrial and commercial facilities. |
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Application
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Central air conditioning system: refrigeration station for commercial buildings, hotels and hospitals. |
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Industrial refrigeration: process cooling for food processing, chemical, pharmaceutical and plastic industries. |
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Power industry: auxiliary cooling system for thermal power plant and nuclear power plant. |
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Manufacturing industry: circulating water cooling for metallurgical and mechanical processing plants. |
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Data center: Provides cooling water for server rooms. |
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Payment |
T/T, Western Union. |
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Service |
Customize and design the size and style according to requirements |
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