FRP Explosion-Proof Roof Negative Pressure Fan, Farm Water Curtain Fan Manufacturer, Factory Workshop Ventilation and Cooling Equipment

• Customization: Available
• Material: Aluminum
• Usage: for Experiment, for Air Conditioner, for Manufacture, for Refrigerate
• Flow Direction: Axial Flow
• Pressure: Medium Pressure
• Certification: RoHS, UR, ISO, CE, CCC
• Color: White, Red, etc.
• Protection Level: IP55
• Insulation Level: F
• Stock Quantity: 100000 Set
• Transport Package: Wooden Packing
• Specification: Different models, different sizes
• Trademark: HENGDING
• Origin: China
• HS Code: 8414513000
• Production Capacity: 10, 000 Units/Yearv
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg

Product Description

Product Description

1, Overview
1.1. DWT-I axial flow roof fan, with blades similar to ZD axial flow fan, adopts a wide blade large chord space twisted and inclined blade shape, which can achieve the required air volume and pressure during low speed operation, thereby reducing fan noise.
1.2. Fans are divided into 17 machine numbers based on impeller diameter of 300-2400mm, with a series air volume of 1500-22000m3/h and a total pressure of 60-320Pa. Fan blades with machine numbers greater than or equal to 12 can be made into adjustable blade angles to meet the needs of different working conditions and achieve energy conservation and noise reduction.
1.3. Fans can be made into explosion-proof types according to different environmental needs, suitable for non corrosive places containing flammable and explosive gases, and anti-corrosion types can be suitable for environments containing corrosive gases.
1.4. To meet the performance adjustment needs of different working conditions, a dual speed motor can be used to achieve two speed regulation, or a variable frequency motor and controller can be used to achieve stepless speed regulation. It is recommended to lock the frequency between 25Hz and 50Hz.
1.5. The fan can be equipped with manual or electric control valves, self hanging louvers, etc. according to user needs.
2, Working conditions
Working temperature: -20~+40 ºC;
Humidity: less than 90%;
Medium conditions:
Conventional type: Non corrosive, non flammable, and explosive gas (with a dust content not exceeding 100mg/m3).
Explosion proof type: Non corrosive containing flammable and explosive gases (dust content not exceeding 100mg/m3).
Anticorrosive type: corrosive gas (without any dust).
Working power supply: three-phase, 380V/50Hz.
3, Application
Suitable for ventilation and exchange in warehouses, industrial and mining factories, power stations, stations, sports venues, and other medium to low pressure and high flow places.
4, Configuration
4.1. The axial flow roof fan has a diameter of 300-2400mm and is available in seventeen machine numbers. The centrifugal roof fan has nine machine numbers ranging from 300-1000mm. Other fan numbers can also be provided according to user needs;
4.2. The structure of various models of fans can be seen in the general assembly drawing, which is composed of components such as impeller, air duct, hood, transmission components, loose leaf damper, bird proof net, safety net, etc; (The above configuration is made according to user requirements)
4.3. Fan transmission form: DWT-1 fan with a diameter less than 2200mm adopts direct motor transmission, and fans above 2200mm adopt belt transmission. According to customer requirements, reducer transmission can also be used. There are three types of leaf flaps: gravity type, electric type, and manual type.
4.4. Roof wind has a wide range of applications and a large quantity, and the structural forms are complex according to the needs of the use. Our factory can develop and improve the external structure according to different technical requirements of users.
5, Processing technology
5.1. Fan impeller: The cross is made of steel through stamping and hydraulic forming, and the blades are made of aluminum alloy after stamping and hydraulic forming. The blades are riveted and assembled with the cross. The impeller has been calibrated for static and dynamic balance, and the balance accuracy is not greater than G5.6 level.
5.2. The outer cylinder flange is made by integral flanging and spinning, and the hood is made of fiberglass reinforced plastic in one molding.
5.3. The explosion-proof and anti-corrosion fan casing is made of fiberglass reinforced plastic in one molding process.
 

Detailed Photos

 

 

 

Product Parameters

 

 

Machine number	Speed (rpm)	Air Volume (m3/h)	Pressure (Pa)	Power (kW)	Noise dB(A)
3	2850	3300 3000 2600	181 206 232	0.37	66
	1450	1650 1560 1450	62 66 72	0.06	56
4	2850	7450 6350 5300	193 230 250	0.75	69
	1450	5700 5400 4580	176 184 190	0.55	67
	960	3820 2860 1880	80 86 92	0.25	60
5	1450	8000 7000 5600	135 162 191	0.55	68
	960	7000 6700 6400	113 122 131	0.37	63
	720	6000 5000 4100	88 92 96	0.25	58
6	1450	15000 14000 13000	232 251 267	1.5	73
	960	11000 10000 9100	168 183 193	1.1	67
	720	8500 8000 7600	111 127 136	0.55	62
7	960	17500 15000 12500	165 201 212	1.5	69
	720	12000 11000 9200	141 163 177	0.75	63
	560	9300 8500 7200	83 94 102	0.55	59
8	960	27000 25000 23000	175 207 228	2.2	72
Machine number	Speed (rpm)	Air Volume (m3/h)	Pressure (Pa)	Power (kW)	Noise dB(A)
8	720	20000 18000 16000	129 154 167	1.5	66
8	560	15750 14500 12250	78 96 121	0.75	63
9	960	34500 29000 24000	202 236 256	3.0	76
9	720	32000 28000 24000	126 156 177	2.2	73
9	560	24000 21500 18600	102 118 126	1.1	67
10	960	50000 45000 39000	251 286 317	5.5	81
10	720	46000 40000 35000	141 167 183	3.0	76
10	560	28000 24000 20000	111 125 133	1.5	69
11.2	960	56900 49500 40400	253 296 322	5.5	82
11.2	720	52500 45000 40000	138 169 183	3.0	77
11.2	560	32000 28000 25000	111 128 142	1.5	71
12	720	57000 50000 44000	196 205 209	5.5	73
12	560	42000 37500 33000	126 134 148	3	67
14	720	76700 68000 57500	250 261 268	7.5	77
14	480	69000 60000 51500	159 169 175	4	69