Delivery Time:15 working days after received your payment
Certification:AHRI ,CE，ISO9001,ISO14001,OHSAS18001

Double skin clean room ( AHU ) return air handling units indoor installation

EKDM air flow range is from 1000m3/h to 400000m3/h. Available functional sections include fresh/return air mixing section, cooling section, heating section, primary/medium/high efficiency filter section, electric heating section, humidifying section, sound attenuation section, heat recovery section, secondary air-return section, fan section, air diffuser section etc. Different combinations can meet different air handling requirements.

•   The surface  of the unit is made of quality color steel, which can resist corrosion, scratch and ultraviolet radiation.

•    Internal panels are made of steel plates galvanized  with aluminum and zinc, with an assured  service life of more than 15 years. All panels  feature  end-to-end  joints and smooth surfaces, without any bur or corroded point.

•    The internal panels feature reinforced design, which is strong enough to support the largest  air handling unit.

•    The unit panel  has two thicknesses,  namely  30mm and 50mm.Inside  the panel, hermetically foamed polyurethane (no fluorine) with a density of 48kg/m3 is used as the heat- insulating material. The heat conductivity factor is less than 0.02W/m°C.

•    Each functional section of the unit is equipped  with a steel trough base, thus  ensuring  it is well supported,  easy to transport and assemble. The overall robustness of the unit meets the  standard of CEN2.

Filter as below :

China

Primary efficiency 5μm

Medium efficiency 1μm

Medium high efficiency 1μm

Sub-high efficiency 0.5μm

High efficiency 0.5μm

GB/T14295

50% > Efficiency > 20%

70% > Efficiency > 20%

99% > Efficiency > 70%

99.9% > Efficiency > 95%

Efficiency > 99.99%

USA ASHRAE

C1

C2~ C4

L5

L6

L7

L8

M9

M10

M11

M12

M13

M14

H12-H16

VH17

VH18

VH19

VH20

Europe

New standard

G1

G2

G3

G4

F5

F6

F7

F8

F9

H10

H11

H12

H13

H14

V15, V17

efficiency

65%

80%

80-90%

> 90%

40%

60%

80%

90%

85%

95%

99%

99.9%

99.995%

99. 995%

99. 9995%

Old speci-fication

EU1

EU2

EU3

EU4

EU5

EU6

EU7

EU8

EU9

EU10

EU11

EU12

EU13

EU14

Specifciations 

Model EKDM	Rated air flow m3/h	Windward area of coil (m2)	Air flow (m3/h)	Diameter  of fan impeller mm	Fan performance
2.25	2.50	2.75	3.00	Max. total pressure of fan Pa	Max. motor power kW
m/s	m/s	m/s	m/s
306	2000	0.23	1863	2070	2277	2484	160	1300	2.2
406	3000	0.34	2754	3060	3366	3672	200	1300	3
407	4000	0.41	3321	3690	4059	4428	225	1500	3
408	5000	0.48	3888