Chinese wholesale Air Blower Types - high pressure EC blower fan for Bipap – Wonsmart

Blower Features

Brand name: Wonsmart

High pressure with dc brushless motor

Blower type: Centrifugal fan

Voltage:24vdc

Bearing: NMB ball bearing

Type: Centrifugal Fan

Applicable Industries:Manufacturing Plant

Electric Current Type: DC

Blade Material: plastic

Mounting: Ceiling Fan

Place of Origin:Zhejiang, China

Voltage:24VDC

Certification: ce, RoHS,ETL

Warranty: 1 Year

After-sales Service Provided: Online support

Life time(MTTF): >20,000hours (under 25 degree C)

Weight: 490 grams

Housing material:PC

Motor type:Three Phase DC Brushless Motor

Outlet diameter: D90*L114

Controller: external

Static pressure: 13.5kPa

Drawing

Blower Performance

WS9290B-24-220-X300 blower can reach maximum 38m3/h airflow at 0 kpa pressure and maximum 13kpa static pressure.It has maximum output air power when this blower run at 7kPa resistance if we set 100% PWM, It has maximum efficiency when this blower run at 7kPa resistance if we set 100% PWM.Other load point performance refer to below P-Q curve:

DC Brushless Blower Advantage

(1) WS9290B-24-220-X300blower is with brushless motors and NMB ball bearings inside which indicates very long life time; MTTF of this blower can reach more than 20,000hours at 20degree C environmental temperature.

(2) This blower needs no maintence;

(3) This blower drived by a brushless motor controller have many different control functions such as speed regulation,speed pulse output,fast acceleration, brake etc.it can be controlled by intelligent machine and equipment easily.

(4) Drived by brushless motor driver the blower will have over current, under/over voltage,stall protections.

Applications

This blower can be widely used onto air pollution detector,air bed,air cushion machine and ventilators.

How to Use the Blower Correctly

FAQ

Q: When can I get the price?

A: Usually we quote within 8 hours after we get your inquiry.

Q: What’s your MOQ?

A: If we have the products in stock, it will be no MOQ. If we need to produce, we can discuss the MOQ according to customer’s exact situation.

Q: How long is your delivery time?

A: The general delivery time is 30-45 days after receiving your order confirmation. Anther, if we have the goods in stock, it will only take 1-2 days. 

The flow rate (typically: liters per minute), at which a blower supplies air or another respiratory gas to the system, depends on the resistance to the flow (also referred to as “static pressure” or “system pressure”) that the blower has to overcome.A specific value of the flow rate corresponds to a specific value of the resistance for a specific fan speed (revolutions per minute). A particular type of blower is characterized by a set of curves in a Cartesian space spanned by a first axis, each particular point whereof corresponds to a particular value of the flow rate, and a second axis, of which each particular point corresponds to a particular value of the resistance . Each specific one of the curves corresponds to a specific value of the fan speed. For, e.g., a radial blower, the curves are largely uniform, and offset with regard to one another in the direction of the second axis. For additional technical information see, e.g., “Fan Fundamentals: Fan Selection, Application-Based Selection, Performance Theory”, Rev 2, June 2005, Greenheck Fan Corp.

The blower is not an ideal pressure source, because the flow rate decreases with increasing system pressure (or: resistance to the flow). As a result, the flow rate is sensitive to fluctuations in the system pressure. Fig.1 is a diagram 100 of a typical fan curve 102 illustrating this sensitivity. Curve 100 represents the dependence of the flow rate (horizontally, in liters per minute) on the system pressure (vertically, in mbar) at a particular fan speed. In principle, the blower can be used to control the flow rate, but the flow rate varies with varying system pressures. For example, if the system pressure varies between 55 mbar and 60 mbar, the flow rate fluctuates between 5 l/sec and 40 l/sec in the example illustrated.