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Rated Voltage:	380v
Rated Power:	7.5kw
Power Source:	Electric Blower
Pressure:	Low Pressure
Type:	Roots Blower
Application:	Air Blower
Model Number:	LZSR50
Brand Name:	Oasis
Place of Origin:	China (Mainland)
Application:	waste water treatment
Type:	three lobes roots blowerr

Specifications

Brand	OASIS	Model	LZSR250
Item	Roots blower	Type	high pressure series
Flow rate	58.1-93.7 m3/min	Pressure	63.7-98 kpa
Motor power	90-225 kw
Frequency	50HZ, 60HZ	Voltage	380v, 400v, 415v
Bore	250mm	Dimension	218012802660
Drive type	Direct coupling or belt transmission	Cooling type	Water cooling
Weight	2520-2600 kg	Package dimension	26801780820

Standard Design and Costruction Features

· 100% oil free air delivery.

· Factory engineered, factory guaranteed, superior product.

· Alloy steel hardened and ground timing gears.

· Anti-friction bearings.

· Rigid one piece CI casing and side plates.

· Easy rotor timing setting.

· No vanes, valves or rings to wear.

· Large inlet and outlet connections for minimum loss.

· Improved volumetric efficiency andreduced opearting tempratures.

· Alloy steel toughened shafts ground to close tolerances.

Applications

· Water Treatment Plants for backwashing of filter/mixed beds.

· Effluent Treatment Plants for diffused aeration and agitation of effluent.

· Cement Plants for Blending, Aeration, Fluidization, Conveying.

· Aquaculture for maintaining the dissolved Oxygen level.

· Chemical Plants for supplying of process air.

· Electroplating Plants for Oil Free air agitation of electrolyte.

· Paper Plants Knife edge coating, drying, conveying. Vacuum pickup.

· Yarn Drying vacuum/pressure drying of yarn.

· Vacuum Moulding for creating quick vacuum.

· Polyster chip conveying & drying For transfer of polyster chips and other similar materials.

· Bag Filters for reverse cleaning of filter bags.

· Pneumatic Conveying vacuum, pressure and combination conveying of cereals, cement, husk, baggase, granules, powders and other similar material.

· Regeneration of dryers & molecular sieves.

Tri Lobe Blowers

Advantages:

The , because of having rotor tips disposed at 120o on each rotor, causes the rotor set to be much more resistant to angular deflection along it's length, than two lobed rotor sets, which have lobe tips disposed at 180o each - this extra "stiffness" provides less deflection at any load, thus minimizing possible rotor contact with both the cylinder and it's sister rotor during operation.

This same tip orientation provides for more even load distribution between the rotor and gear sets, while under normal load cycling - this feature enhances the life of the bearings and gears - the six smaller volume chambers per revolution of the Tri-Lobe vs. four larger chambers of the two lobe, increases the pulsation frequency, allowing pulsation magnitude to be limited, and reducing characteristic noise levels.

Oil Preventive Arrangement	Due to efficient & improved oil prevention arrangement, gas or air is delivered uncontaminated; oil free state unaffected by high temperatures. No shaft wear.
Splash oil lubrication	Assures improved bearing life and operational simplicity.
Tri-Lobe rotors	Involute contoured impeller profiles for maximum efficiency.
Air seals	air seals provide dependable non-wearing operation to minimize air leakage past the shafts.
Heavy-duty and ribbed housing	Reduce noise levels and Use of fins increases heat dissipation.
Gear	Rotation of the impellers is synchronized by a pair of timing gears having helical, hardened and ground teeth.