YDWF Low noise air conditioning fanDetailed product description：

YDWF fan is a centrifugal fan with high efficiency, variable speed, and low noise. It is a forward multi wing transformation fan designed based on advanced multi wing aerodynamic structure theory. It consists of a logarithmic spiral casing, a forward multi wing impeller, a variable speed external rotating motor, and a radial streamline air inlet. It has the characteristics of compact appearance, small size, low vibration, large air volume range, high pressure, and the ability to achieve stepless speed regulation (50% -100%). It is currently one of the lowest noise fans in China. Widely used in ventilation and air exchange places with strict noise requirements and a wide range of air volume, it is an ideal supporting product in the air conditioning, purification, and refrigeration industries. It can also be equipped with F-class insulated motors to transport gases at higher temperatures, and is used as a supporting product for the production of paint baking equipment.

The YDWF type fan is made of fully galvanized sheet metal and produced in molds, with a clean and bright appearance; The bracket adopts a box adjustable structure, which can freely change the angle of use, making it extremely convenient.



YDWF Fan Performance Parameter Table

machine number	traffic （m3/h)	total pressure （N/m2)	power （KW）	Rated Current （A）	Rated speed （r/min)	Noise dB(A)	Whole machine weight (kg)	Remarks
2.5S	nine hundred and eighty one thousand two hundred and two one thousand four hundred and fifty one thousand seven hundred and forty one thousand and nine hundred	one hundred and eighty-nine one hundred and ninety-three two hundred and two one hundred and eighty-eight one hundred and eighty-three	zero point two five	zero point nine five	nine hundred and sixty	fifty-one fifty-two fifty-six fifty-nine fifty-nine	twenty-one
2.5HS	one thousand three hundred and fifty one thousand seven hundred and eighty two thousand one hundred and thirty two thousand two hundred and thirty two thousand four hundred and eighty	two hundred and fifty-two two hundred and ninety three hundred and ten three hundred and five two hundred and ninety-five	zero point three two	one point zero five	one thousand three hundred and fifty	fifty-six fifty-eight sixty-three sixty-four sixty-five	twenty-three
2.5M	one thousand three hundred and ten one thousand seven hundred and eighty two thousand and ninety two thousand three hundred and fifty two thousand five hundred and sixty	one hundred and seventy-eight one hundred and ninety-one two hundred and two one hundred and eighty-seven one hundred and seventy-six	zero point two five	zero point nine five	nine hundred and sixty	fifty-six fifty-seven fifty-eight fifty-nine sixty-one	twenty-three
2.5HM	one thousand five hundred and eighty one thousand seven hundred and fifty two thousand five hundred and eighty two thousand eight hundred and thirty three thousand two hundred and fifty	two hundred and sixty two hundred and eighty-two three hundred and thirty two hundred and seventy-one two hundred and fifty-one	zero point four five	one point four	one thousand three hundred and fifty	sixty-one sixty-two sixty-four sixty-five sixty-six	twenty-six
2.5HL	one thousand nine hundred and forty two thousand three hundred and fifty two thousand five hundred and sixty two thousand seven hundred and eighty three thousand one hundred and twenty	two hundred and fifteen two hundred and thirty-three two hundred and forty-two two hundred and thirty-two two hundred and thirteen	zero point four five	one point four five	nine hundred and sixty	fifty-seven fifty-eight sixty-one sixty-two sixty-three	twenty-eight
2.5L	two thousand and twenty two thousand and three hundred two thousand five hundred and ninety two thousand seven hundred and twenty two thousand eight hundred and twenty	one hundred and eighty one hundred and ninety-one two hundred and six one hundred and eighty-nine one hundred and seventy-three	zero point three seven	one point three	nine hundred and sixty	fifty-six fifty-seven fifty-nine sixty-one sixty-two	twenty-eight
3.0M	two thousand five hundred and eighty three thousand and seventy three thousand three hundred and ninety three thousand eight hundred and ninety four thousand three hundred and forty	three hundred and thirty three hundred and forty-four three hundred and sixty-five three hundred and fifty-eight three hundred and forty-six	zero point five five	one point six	nine hundred and sixty	sixty sixty-one sixty-two sixty-three sixty-four	twenty-nine
3.5S	two thousand eight hundred and fifty three thousand one hundred and sixty-four three thousand six hundred and forty four thousand and sixty four thousand five hundred and forty	three hundred and ninety-eight four hundred and seven four hundred and thirty four hundred and nine four hundred	zero point seven five	two point three	nine hundred and sixty	sixty sixty-two sixty-three sixty-four sixty-five	forty-eight

(Continued Table)

machine number	traffic （m3/h)	total pressure （N/m2)	power （KW）	Rated Current （A）	Rated speed （r/min)	Noise dB(A)	Whole machine weight (kg)	Remarks
3.5M	three thousand one hundred and thirty three thousand eight hundred and thirty four thousand and twenty four thousand four hundred and fifty four thousand seven hundred and sixty	four hundred and three four hundred and thirty-eight four hundred and fifty-five four hundred and thirty four hundred and ten	zero point seven five	two point three	nine hundred and sixty	sixty sixty-two sixty-three sixty-four sixty-six	forty-nine
3.5L	three thousand two hundred and fifty-three four thousand three hundred and twenty-three four thousand nine hundred and twenty-three five thousand three hundred and twenty-five five thousand seven hundred and thirty	three hundred and ninety four hundred and thirty-four four hundred and sixty-five four hundred and forty-three four hundred and twenty-two	one point one	three point two	nine hundred and sixty	sixty-one sixty-three sixty-four sixty-five sixty-seven	fifty-four
4.0S	three thousand nine hundred and ninety-six four thousand eight hundred and ten five thousand one hundred and eighty-eight five thousand eight hundred and twenty six thousand two hundred and thirty-six	five hundred and eighty-six six hundred and thirteen six hundred and ten six hundred and two five hundred and eighty-four	one point five	four	nine hundred and fifty	sixty-six sixty-eight sixty-nine seventy seventy-one	fifty-nine
4.0M	five thousand four hundred and sixty five thousand eight hundred and seventy six thousand five hundred and twenty seven thousand one hundred and thirty seven thousand five hundred and sixty	five hundred and ninety-two six hundred and eight six hundred and fifteen five hundred and eighty-seven five hundred and seventy-one	one point eight	four point eight	nine hundred and fifty	sixty-five sixty-seven sixty-eight seventy seventy-one	sixty-five
4.0L	four thousand eight hundred and thirty five thousand four hundred and thirty seven thousand one hundred and thirty seven thousand eight hundred and thirty eight thousand four hundred and thirty	five hundred and sixty-two five hundred and eighty-one six hundred and eighteen five hundred and ninety-two five hundred and eighty-four	two point two	six	nine hundred and fifty	sixty-seven sixty-eight sixty-nine seventy-one seventy-two	seventy-two
4.0AL	eight thousand five hundred and twenty nine thousand five hundred and fifty ten thousand two hundred and fifty ten thousand six hundred and ninety eleven thousand three hundred and fifty	five hundred and eighty-five six hundred and twenty six hundred and twenty-five five hundred and seventy-seven five hundred and sixty-nine	two point two	six point six	nine hundred and fifty	sixty-six sixty-seven sixty-nine seventy seventy-one	seventy-two
4.2S	six thousand six hundred and eighty-three seven thousand six hundred and forty-eight eight thousand two hundred and ten eight thousand five hundred and fifty eight thousand nine hundred and twenty	six hundred and eighty-nine seven hundred and seventeen seven hundred and twenty-two seven hundred and two six hundred and seventy-eight	two point two	six	nine hundred and sixty	sixty-seven sixty-eight sixty-nine seventy seventy-one	seventy-four
4.2M	seven thousand six hundred and sixty eight thousand four hundred and thirty nine thousand and sixty nine thousand five hundred and sixty ten thousand three hundred and twenty	six hundred and sixty-seven seven hundred and eleven seven hundred and twenty-one seven hundred and three six hundred and sixty-three	three	seven	nine hundred and sixty	sixty-eight sixty-nine seventy seventy-one seventy-two	eighty-nine

(Continued Table)

machine number	traffic （m3/h)	total pressure （N/m2)	power （KW）	Rated Current （A）	Rated speed （r/min)	Noise dB(A)	Whole machine weight (kg)	Remarks
4.2L	eight thousand four hundred and twenty nine thousand five hundred and thirty ten thousand and seven hundred eleven thousand and three hundred twelve thousand and five hundred	six hundred and eighty-three seven hundred and twelve seven hundred and twenty-five seven hundred and four six hundred and seventy-five	three	seven point two	nine hundred and sixty	sixty-nine seventy seventy-one seventy-two seventy-three	ninety-two
4.5S	eight thousand one hundred and twenty nine thousand four hundred and thirty ten thousand one hundred and seventy eleven thousand and twenty twelve thousand four hundred and fifty	seven hundred and forty-three seven hundred and eighty-seven eight hundred and fifteen seven hundred and ninety-four seven hundred and fifty	four	eight	nine hundred and sixty	seventy seventy-one seventy-three seventy-four seventy-five	one hundred and two
4.5M	eight thousand and three hundred ten thousand eight hundred and thirty twelve thousand and five hundred thirteen thousand nine hundred and eighty fifteen thousand four hundred and eighty	seven hundred and fifty eight hundred and ten eight hundred and twenty-five seven hundred and eighty-seven seven hundred and sixty-two	five point five	thirteen	nine hundred and sixty	seventy-three seventy-four seventy-six seventy-eight seventy-nine	one hundred and forty-one
4.5L	twelve thousand and seventy thirteen thousand nine hundred and twenty fifteen thousand four hundred and thirty seventeen thousand five hundred and thirty eighteen thousand and three hundred	seven hundred and fifty eight hundred and ten eight hundred and twenty-five seven hundred and eighty-seven seven hundred and sixty-two	five point five	thirteen	nine hundred and sixty	seventy-three seventy-four seventy-six seventy-eight seventy-nine	one hundred and forty-one
4.5AL	fifteen thousand six hundred and eighty sixteen thousand nine hundred and seventy eighteen thousand and four hundred twenty thousand three hundred and fifty twenty-one thousand and seventy	seven hundred and seventy-three seven hundred and ninety-one eight hundred and twenty-one eight hundred and fifteen seven hundred and eighty-three	seven point five	seventeen point five	nine hundred and sixty	seventy-eight seventy-nine eighty-one eighty-two eighty-three	one hundred and sixty-seven

Note: 1. The motors listed in the table are all Y series external rotor motors
2. The voltage is 380V, the frequency is 50HZ, and the insulation level is B (special usage conditions must be declared first, and the insulation level should be changed)
3. The fan with a four stage motor cannot be used at different speeds and has a constant air volume and speed.