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FRP Cooling Tower DBNL3J-60 for HVAC Retrofit | China Factory Direct

Specializing in the DBNL3J-60 model, our factory-direct FRP cooling tower export solution targets 60 cubic meters per hour recirculating systems commonly found in air compressor intercoolers, hydraulic oil coolers, and injection molding machine barrel cooling lines. This round counterflow design features a heavy-duty FRP shell with UV inhibitor for outdoor installations, upgraded high-efficiency PVC drift eliminators to reduce water loss below 0.001%, and a maintenance-friendly belt-driven fan that accommodates both 380V/50Hz and 460V/60Hz motors for global compatibility. Beyond new unit sales, we serve as a reliable aftermarket supplier offering direct-replacement fill packs, spray nozzles, and gearboxes for existing DBNL3J towers, helping plant owners extend equipment life while cutting energy consumption by 8–12% through retrofit kits. With dedicated export documentation, wooden crating for sea freight, and on-site installation guidance via video calls, we empower overseas contractors and factory maintenance teams to procure premium-grade cooling towers without minimum order quantity constraints, ensuring cost-effective operation for tropical and temperate climates alike.

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Product Advantages Parameter Specifications

Product Advantages

Structural Integrity with Marine-Grade FRP Laminate

Unlike ordinary industrial polyester resins, our cooling tower shell employs a flame-retardant, UV-stabilized isophthalic FRP laminate with a gel-coat thickness of 0.5 mm. This formulation resists micro-cracking under continuous thermal cycling (from 10°C to 55°C ambient swings) and maintains flexural strength above 180 MPa for over 15 years. We deliberately avoid calcium-filled cheap layers—every panel passes a 2,000-hour salt-spray test, making our towers equally reliable for coastal LNG terminals and inland steel mill recirculating systems.

Drift Elimination and Water Conservation Engineering

The "collecting type" designation is not cosmetic—it integrates a three-stage drift eliminator with a sinusoidal chevron profile, positioned just 300 mm above the air inlet. This geometry reduces water carryover to below 0.001% of circulating flow, even at 120% of design air velocity. For a 500 m³/h system, this translates to saving approximately 4.5 tons of make-up water per month compared to conventional eliminator designs. Additionally, the basin's built-in weir and equalizing port allow full drainage without pump cavitation, a feature often overlooked but critical for winter shutdown in temperate climates.

Acoustic Performance Without Compromising Thermal Duty

Our low-noise claim is validated by third-party tests at 8-meter distance: 73.5 dB(A) for standard fan configuration and 69.2 dB(A) with the optional high-efficiency six-blade aerodynamic rotor. More importantly, we achieve this noise floor without reducing the fill volume or increasing the tower footprint. By optimizing the fan stack angle and using a direct-drive TEFC motor with dynamically balanced hubs, we suppress both broadband noise and discrete tonal peaks at blade-passing frequencies—a decisive advantage for projects requiring night-time operation near residential zones or hospital intensive-care wings.

Parameter Specifications

Product	Low Noise collecting Type Counterflow FRP 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)
DBNL3J-12	15	2333	1210	7200	700	0.6	217	775	1.96	40.3
DBNL3J-20	24	2423	1460	12400	800	0.8	244	958	2	41.1
DBNL3J-30	35	2642	1912	18000	1200	0.8	424	1734	2.21	43.5
DBNL3J-40	46	3142	1912	21500	1200	1.1	496	1896	2.6	43.5
DBNL3J-50	57	3130	2215	28000	1400	1.5	617	2505	2.65	44.7
DBNL3J-60	68	3430	2215	32300	1400	1.5	667	2829	2.78	45.7
DBNL3J-70	79	3444	2629	39200	1600	2.2	824	3816	3.03	47
DBNL3J-80	92	3744	2629	43400	1600	2.2	909	4240	2.86	47.5
DBNL3J-100	114	3694	3134	56000	1800	3	1014	5932	3.15	50
DBNL3J-125	142	3944	3134	67200	1800	4	1104	6158	3.15	50.7
DBNL3J-150	171	3953	3732	84000	2400	4	1744	8246	2.9	52
DBNL3J-175	200	4203	3732	94300	2400	5.5	1884	8582	3.15	53
DBNL3J-200	231	4235	4342	112000	2800	5.5	2208	11210	3.01	54.6
DBNL3J-250	283	4485	4342	134300	2800	7.5	2420	11983	3.26	55.6
DBNL3J-300	334	4623	5134	168000	3400	11	3648	17173	3.5	56.8
DBNL3J-350	395	4873	5134	187400	3800	11	3950	17850	3.75	57.3
DBNL3J-400	455	5018	6044	224000	3800	11	4406	23132	3.6	58.8
DBNL3J-450	514	5268	6044	242000	3800	11	4752	24510	3.85	58.8
DBNL3J-500	576	5619	6746	280000	4200	15	5887	30062	3.7	60
DBNL3J-600	680	6119	6746	302200	4200	18.5	6689	32164	4.2	61
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

FRP Cooling Tower DBNL3J-60 for HVAC Retrofit | China Factory Direct

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