Ventilation Axial Flow Fans Large Volume with Metal Shell

• Customization: Available
• Material: Galvanized Sheet
• Blade Material: Stainless Steel
• Model NO.: 2.5-4P
• Type: Axial Fan
• Electric Current Type: AC/DC
• Mounting: Wall Fan
• Certification: RoHS, UR, ISO, CE
• Airflow: 680-28000m3/H
• Transport Package: Carton
• Trademark: GMUSEM
• Origin: China
• HS Code: 8414593000
• Production Capacity: 5000PCS/Month

Product Description

Product Description

Product Parameters

Model	Air Volume	Power	Air Pressure	Size
2.2-4P	680	0.04	32	270*270
2.5-4P	1000	0.04	35	300*300
2.8-4P	1464	0.06	50	330*330
3.2-4P	2300	0.06	60	350*350
3.55-4P	3265	0.09	95	400*400
4-4P	5300	0.25	167	450*450
4.5-4P	6778	0.25	160	500*500
5-4P	9300	0.37	200	550*550
5.6-4P	13000	0.55	190	600*600
6-4P	18000	1.1	300	650*650
7.1-4P	21895	2.2	284	750*750

Typical fire description without smoke removal

Natural smoke exhaust systems
Smoke extraction by natural lift Suitable for stairwells, industrial structures, atriums, and similar types of buildings where thermal lift is capable of discharging smoke.

 

Mechanical smoke exhaust system
Smoke dissipation by fans Suitable for industrial structures, atriums and similar types of buildings where thermal lift is insufficient for smoke extraction and must be bolstered by fans.

 

Smoke protection pressure system
Smoke suppression by exerting positive pressure Suitable for stairwells in tall buildings and for safety stairwells where smoke must not penetrate emergency routes.

Spreading of smoke without smoke removal
A fire breaking out inside a building always progresses in an entirely different way from an outside fire. The measures intended to provide preventive fire protection must take this fact into account. Every fire releases thermal energy and smoke. Hot smoke rises to the top and fills the room. Unless removed by appropriate means, the smoke in combination with the fire and hot gases will eventually destroy the building.

Spreading of smoke with smoke removal
Smoke and heat are discharged quickly by means of convection (heat dissipation) for the following purposes: minimise smoke formation along rescue and escape routes, guarantee full visibility for those trying to escape, i.e. save lives, prevent the "flashover" effect (smoke ignition), and facilitate firefighting operations by allowing the fire brigade to fight the fire in a quick and targeted manner, thereby preventing secondary fires and preserving property.