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• KRS energy-saving and environmental protection FRP centrifugal fan
• KRS energy-saving and environmental protection steel cord high pressure fan
• KRS energy-saving and environmental protection PP fan
• KRS energy-saving and environmental protection explosion-proof fan
• KRS energy-saving and environmental protection iron fan
• KRS axial fan
• Deodorization low noise box fan
• Fan parts

I. Uses
The ventilator can be widely used in pharmaceutical and chemical industry, precision electronics, metal processing, PCB circuit board, sewage deodorization, semiconductor manufacturing process, electroplating pickling and other occasions containing acid and alkali components and chemical compositions.
II. Fan types
There are three types of blower: B-belt, C-axis, and D-direct.

III. Structural features
The ZYF fan is mainly composed of impeller, casing, air inlet, casing support frame, belt, pulley, pulley cover, base, relative base, shock absorber, etc.

(1)The impeller is composed of 8 to 36 retroverted wing blades, curved front cover plates and flat plate rear plates.
(2)The fan casing and the impeller are all made of pure glass-reinforced plastic (FRP) material, which has high strength, light weight, not aging, good corrosion resistance, low noise, and anti-static properties.
(3)KRS fans are far more sophisticated than similar fans in terms of material sophistication, overall fan appearance, and stability.
(4)The transported gas must not contain viscous substances, dust and hard particles contained ≤ 150mg/m3, gas temperature ≤ 100 °C, relative humidity ≤ 100%.
(5)The transmission mode can be designed as a belt type, shaft type, direct type transmission, which should be selected on site.
(6)The casing is made of screw pre-injection molding to ensure the strength of the shell.
(7)The interface between the inlet bell and the housing is flat to reduce leakage.
(8)The fan is equipped with inspection holes and cleaning holes for easy inspection and cleaning.
(9)The transmission part consists of a main shaft, a bearing seat, a rolling bearing, a pulley or a coupling.

II. Advantages
Save money
Durable
Safe
Easy maintenance
Perfect service

V. Performance parameters

Speed (rpm)		920 (4P30Kw)		990 (4P37Kw)		1050 (4P45Kw)		1120 (4P55Kw)
Performance		Air volume	Full pressure	Air volume	Full pressure	Air volume	Full pressure	Air volume	Full pressure
		(M3/h)	(Pa)	(M3/h)	(Pa)	(M3/h)	(Pa)	(M3/h)	(Pa)
No.	1	36265	1580	39024	1830	41389	2058	44148	2342
	2	41728	1551	44903	1796	47624	2020	50799	2299
	3	47097	1450	50680	1679	53752	1889	57335	2149
	4	52560	1349	56559	1562	59987	1757	63986	1999
	5	56234	1212	60512	1403	64180	1579	68458	1796
	6	59813	1076	64364	1246	68265	1401	72816	1594

VI. Comparison of fan efficiency
※ According to the "fan similarity law": the ratio of speed to horsepower has a cubic relationship, so the higher the efficiency, the more energy-efficient.
※ Fans at the same operating point: The higher the efficiency, the lower the speed.

Static pressure efficiency of KRS fan				Static pressure efficiency of common acid-base resistant fans
Instructions	Data			Instructions	Data
efficiency	78		%	Efficiency	65		%
Power consumption		34.08		Power consumption		43.7
Motor horsepower	45.68	50HP		Motor horsepower	58.58	75HP
Motor efficiency and power factor	95.0%	90.0%		Motor efficiency and power factor	92.5%	86.5%
Monthly electricity bill		17414		Monthly electricity bill		22330
Annual electricity bill		208978		Annual electricity bill		267968
Save				RMB 58,990

1. The company promises one year of warranty. After receiving the maintenance message, the staff will arrive at the scene within 24 hours
2. Professional technologies to solve the problems encountered by customers
3. Conduct customer satisfaction surveys termly and welcome to put forward valuable opinions or suggestions
4. Make regular telephone call records and keep abreast of the operation of the fans
5. Regularly check equipment operation status
6.Advanced on-site power balancing machine can analyze and improve the whole unit vibration
7 .Has advanced precision laser pairing instrument and belt transmission centering instrument

High performance, high efficiency, low vibration, low noise