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GFRP DBNL3-50 Low Noise Cooling Tower Supplier | China Factory Export for Industrial Process

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

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Product Advantages Parameter Specifications

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

Product		Low Noise Type Counterflow Cooling Tower

Model	τ=27℃ Coolable water volume（m³/h）△t=5℃		Main Dimensions (mm)		Air Volume m³/h	Fan Diameter (mm)	Motor Power (kw)	weight (kg)		inlet pressure 10⁴Pa	noise at 10m dB (A)
Model	τ=27℃ Coolable water volume（m³/h）△t=5℃		Total Height	Maximum Diameter	Air Volume m³/h	Fan Diameter (mm)	Motor Power (kw)	self-weight	operating weight	inlet pressure 10⁴Pa	noise at 10m dB (A)
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
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
DBNL3-200	231		3835	4342	112000	2800	5.5	2132	5592	3.01	54.6
DBNL3-250	283		4085	4342	134300	2800	7.5	2344	6365	3.26	55.6
DBNL3-300	334		4223	5134	168000	3400	7.5	3558	9229	3.5	56.8
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
DBNL3-450	514		4868	6044	242000	3800	11	4646	13464	3.85	58.8
DBNL3-500	576		5219	6746	280000	4200	15	5768	16258	3.7	60
DBNL3-600	680		5719	6746	302200	4200	18.5	6570	18360	4.2	61
DBNL3-700	790		5589	7766	393500	5000	18.5	6915	23194	3.95	61.4
DBNL3-800	890		6089	7766	408000	5000	22	7983	25982	4.45	61.4
DBNL3-900	1035		6040	8836	505200	6000	22	8934	32568	4.25	62.6
DBNL3-1000	1139		6540	8836	510300	6000	30	10560	36420	4.75	63.1
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.
Application			Central air conditioning system: refrigeration station for commercial buildings, hotels and hospitals.
			Industrial refrigeration: process cooling for food processing, chemical, pharmaceutical and plastic industries.
			Power industry: auxiliary cooling system for thermal power plant and nuclear power plant.
			Manufacturing industry: circulating water cooling for metallurgical and mechanical processing plants.
			Data center: Provides cooling water for server rooms.
Payment			T/T, Western Union.
Service			Customize and design the size and style according to requirements

GFRP DBNL3-50 Low Noise Cooling Tower Supplier | China Factory Export for Industrial Process

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