Industrial High Quality Round Water Cooling Tower

• Cooling Method: Counter Flow
• Ventilation Mode: Mechanical Ventilation
• Material: FRP
• Air Contact Form: Wet
• Air Contact Way: Open
• Tower Shape: Round
• Model NO.: NRT series
• Noise Level: Ordinary
• Application Fields: Industrial
• Certification: ISO, CE, CTI
• Condition: New
• Cooling Capacity: 300 Ton
• Brand Name: Newin
• Warranty: 1-2 Years
• Transport Package: 20/40gp/40hq Container Loading, Loose Packing
• Specification: CTI
• Trademark: NEWIN
• Origin: China
• HS Code: 84195000
• Production Capacity: 15000 Sets/Year

Product Description

NRT series counter flow round type cooling towers were strictly examined by "Quality Supervision and Inspection Center of National Glass work" in 2006,  the result showed NRT series cooling towers completely comply with all national standards. NRT series counter flow induced draft cooling tower is designed with bottle type structure, so that the volume of prevailing air is minimized. Every part of the cooling tower is designed and made precisely and further permits easy installation and endurance due to light weight and strong structure. The testing report of cooling capacity proves its high efficiency. This series of cooling tower have passed the GB7190.1-1997 quality certification of super low noise.  

Design Features



NRT series counter flow induced draft cooling tower is designed with bottle type structure, So that the volume of prevailing air is minimized. Every part of the cooling tower is designed and made precisely and further permits easy installation and endurance due to light weight and strong structure. The testing report of cooling capacity proves its high efficiency.
Casing and Water Basin
Adopting small ventilation resistance packing and special designed FRP/aluminum alloy high efficiency fan, greatly reduced the motor power. Smaller motor power are designed for low noise model, save more power, double speed motor for optional to power saving according to customers' special requirements.Fiberglass reinforced polyester(FRP) is applied with water-resistance resin and high quality fiberglass mat. With good moisture, high gel,high strength, spray the gel-coat on FRP parts by machine and is thermal formed. The surface is as smooth as mirror and could resist ultraviolet radiation. Also, it is colorfast and durable.
Axial Fan
All cooling tower fans with adjustable pitch blades are applied to being balanced, so that it can operate stably and quietly. Material chosen are A.B.S, aluminum alloy, stainless steel and F.R.P. 
Fan Drive
Small capacity cooling tower adopts direct drive low noise fan. Bigger capacity fan equipped with Belt drive speed reducer. Adjust belt tension through automatic spring to save the manual maintenance. Total enclosed structure can assure the low noise operation. This series of cooling tower have passed the GB7190.1-1997 quality certification of supper low noise. Further more the belt is durable without negative effect from water vapor and sunshine.
Water Distribution 
The using of high coefficient rotating sprinkler heads made of reinforced plastic or aluminum alloy can reduce the pressure of friction loss. Besides, the water can be distributed evenly to achieve the max thermal performance. 
Infill
Standard and low noise cooling tower are using high class thermal formed PVC sheet. The sheets are added with industrial plaits material and long fiberglass to slow the aging and increase the strength. Moreover the water film is thinner and longer so that the infill cabbage coefficient is higher. The infill is formed in the factory, instead of at construction site. To avoid uneven problem during installing. And it cold be easily cleaned and maintained in future. High temperature cooling tower is using P.P. Infill that could withstand up to 90 degree C water temperature. The surface of such infill is corrugated to increase the filling pitch to make sure that infill is clog-free and overcome the problem of water quality.
Steel Parts
All the steel parts and hard wares are made of hot dip galvanized steel(HDGS), so that the cooling tower is rust-free, durable and long service life. And the frame is stable and with good rigidity, the load is evenly distributed among each foundation, which makes operation and assembly easily.

Parts	Material	Remark
Water Basin	F.R.P	Water-resistance resin and high quality fiberglass mat
Casing	F.R.P	Water-resistance resin and high quality fiberglass mat
Motor	Cast Iron	Fully enclosed anti water type, other brand motors for optional
Motor support	Hot dip galvanized  steel	In accordance with BS EN ISO1461:1999 standard
Fan	A.B.S	Aluminum alloy material for optional
Infill	P.V.C  film	For high temperature inlet water, UPVC and PP material for optional
Air inlet screen	P.V.C	F.R.P  for optional
Sprinkler head	A.B.S	Aluminum alloy material for optional
Sprinkler pipe	P.V.C	For high temperature inlet water, hot-dip galvanized steel for optional
Bolts & Nuts	Electroplated	Stainless steel 304, 316 for optional

Component Instructions
 

Frame: HDGS Hot-dip galvanized U-steel Casing: F.R.P. Water basin: F.R.P. Distributing system: HDGS & PVC  Fan: ABS or Aluminum alloy Motor: fully enclosed waterproof type Infill: PVC/PP Connections: Flange

Standard of Design & Manufacture

Manufacturer's standard according to national standard GB7190.1-1997, installation, acceptance criteria, and mainly refer to the following national standards and industry standards. 
GB/T 1447-83 glass fiber reinforced plastic tensile performance test methods. 
GB/T 1448-83 glass fiber reinforced plastic bending performance test methods 
GB/T 1462-88 fiber reinforced plastic water imbibition test method. 
GB 2828-87 batch-by-batch inspection counter sampling procedures and sampling table. 
GB/T 3854-84 fiber reinforced plastic barcol hardness test method. 
GB/T 1033-86 plastic density and relative density test method. 
GB/T 1040-92 plastic tensile test method. 
GB/T 8237-87 glass fiber reinforced plastic (FRP) using liquid unsaturated polyester resin 
GB/T 2576-89 fiber reinforced plastic resin content unsolvable test method 
GB/T 2577-89 glass fiber reinforced plastic resin content test method. 
JC/T 278-94 in the alkali glass fiber roving. 
GB/T 8924-88 glass fiber reinforced plastic combustion performance test method of oxygen index method. 
GBJ 102-87 industrial circulating water cooling design specification. 
GB 50204-92 concrete structure engineering construction and acceptance specification.

Options

Dul-speed motor & VFD motor
Color of tower body: customized
Silencer blanket/silencer skirt
Wind inducer
Stainless steel bolts
F.R.P air inlet louver


Technical data
 

Item	Nominal	Dimension		Motor	Fan	Air  Flow	water	Weight
	Flow	(mm)		(Kw)	Diam.	(cmm)	pressure	(kg)
Model	(m3/h)	Diam.	Height		(mm)		(Kpa)	Net	Run.
		Max.						weight	Weight
NRT-8	6.2	945	1380	0.18	525	70	13	42	180
NRT-10	7.8	945	1530	0.18	600	85	13	46	190
NRT-15	11.7	1195	1415	0.37	600	140	13	54	290
NRT-20	15.6	1195	1590	0.55	730	160	14	67	300
NRT-25	19.5	1400	1820	0.75	730	200	16	98	500
NRT-30	23.4	1650	1705	0.75	730	230	16	116	530
NRT-40	31.2	1650	1775	1.5	890	280	16	130	550
NRT-50	39.2	1830	1835	1.5	890	330	17	190	975
NRT-60	46.8	2145	1955	1.5	1150	420	17	240	1250
NRT-80	62.6	2145	2035	1.5	1150	450	18	260	1280
NRT-100	78.1	2900	2370	2.2	1410	700	21	500	1690
NRT-125	97.5	2900	2555	2.2	1410	830	23	540	1640
NRT-150	117	2900	2555	2.2	1410	950	23	580	1680
NRT-175	136.8	3310	3165	4	1750	1150	30	860	1960
NRT-200	156.2	3310	3165	4	1750	1250	30	880	1980
NRT-225	175.5	4120	3580	5.5	2100	1500	33	1050	2270
NRT-250	195.1	4120	3580	5.5	2100	1750	33	1080	2800
NRT-300	234	4730	3680	7.5	2400	2000	34	1760	3930
NRT-350	273.2	4730	3680	7.5	2400	2200	34	1800	3790
NRT-400	312.1	5600	3840	11	2745	2400	36	2840	5740
NRT-500	392.4	5600	3840	15	2745	2600	36	2900	5800
NRT-600	468	6600	4470	15	3400	3750	42	3950	9350
NRT-700	547.2	6600	4470	18.5	3400	3750	42	4050	9450
NRT-800	626.4	7600	4720	22	3700	5000	45	4700	11900
NRT-1000	781.2	7600	4720	22	3700	5400	45	4900	12100

Application

Cooling tower is mainly used in air conditioning cooling system, frozen industry, injection molding, tanning, foaming, electricity, steam turbine, aluminum processing, air compressors, industrial water cooling, etc. Those industries could be divided into 4 categories as follows:

♦ Air temperature adjust : air conditioning, refrigerator, freezer, refrigeration, air conditioning, etc.;
♦ Manufacturing and processing: the food industry, pharmaceutical industry, metal casting, plastic industry, rubber industry, textile industry, steel mills, chemical industry, petrochemical products, etc.;
♦ Cooling the running machines: mechanical operation of the generator, steam turbine, air compressor, hydraulic press, engine, etc.;
♦ other industries...

Below is some round type cooling towers' project in different industries.

Shipping



FRQ:
1. Are you manufacturer?
Answer: Yes we are a cooling tower manufacturer located in Guangdong Province China. With 18 years of manufacturing and OEM service for several brand of famous cooling tower.
2. Can you provide the cooling tower parts different with the specification in above showing form?
Answer: We can manufacturer and newly design for special order based on your provided specification and drawing or performance requirements.
3. What products are you manufacturing?
Answer: Cooling towers with its accessories (motor, steel frame, plastic components, FRP panel, PVC infill, motor, water pump, motor fan, control box for fan)
4. What is the delivery time?
Answer: For round type cooling tower below 300RT, we have stock in warehouse. Other type cooling tower, need to production upon receive the PO. Leading time 15 working days.
5. What is your quality warranty?
Answer: 1 year for motor, 2 years for steel parts, 5 years for FRP pannel. Free parts available during garrantee peroid.
6. How many workers working in your factory?
Answer: 270 workers at the end of 2013.
7. Do you have any production management system or certification for products.
Answer: ISO 9001: 2008 quality and environment management system certificates. CTI certificate for cooling towers.





For cooling tower information please visit to newinmachine.en.made-in-china.com
For cooling tower parts information please visit to newinmachine.en.made-in-china.com