Model 4000 PD PLUS heavy duty industrial blowers are designed for high performance applications, up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected).
57/81 Series (Single Envelope Gastight)
This series is utilized in such applications as closed loop pneumatic conveying, fuel or process gas handling, or elevated pressure applications to 100 PSIG (6.89 bar g) discharge.
Specifications
Features
Applications
Warranty
Documents
Performance Specifications:
Flow range: 51 - 680 CFM (1160 m³/h)
Pressure range: up to 18 PSIG (1.03 bar g)
Vacuum range: up to 17” Hg (-500 mbar g) dry vacuum (24” Hg [-810 mbar g] water injected)
Material Specifications:
Housing: Cast iron
End Plates: Cast iron
End Cover:
Gear end: Cast iron
Free end: Aluminum
Rotors: Ductile iron
Shafts: Ductile iron, cast integrally with rotors
Drive Shaft: Ductile iron
Gears: Heat treated alloy steel, helical cut
Bearings:
Gear end: Double row ball, both rotors
Free end and Drive Shaft: Single row ball
Seals:
17/46: Lip and labyrinth type on the rotor shafts;
lip seal on the drive shaft
57/81: Mechanical and labyrinth type on the rotor shafts;
lip seal on the drive shaft
64/67: Same as 57/81 plus mechanical sealing on the
drive shaft
Lubrication: Oil splash system, both ends
Helical Gearing
Timed with hardedened, precision helical gears, keyed to the rotor shafts (NOT taper fit spur gears as offered by all other manufacturers, which have greater backlash, and can slip and lose timing). Helical gears are quieter, reducing mechanical noise.
Double Row Ball Bearings
For increased strength compared to single row bearings offered by competing brands. This feature increases bearing life by as much as 50% compared to competing brands.
Rotors with Integral Shafts
Tuthill blowers are available in two-lobe or tri-lobe variations. The tri-lobe variation offers reduced pulsation and lower noise levels. The two-lobe variation is ideal for processes with heavy contamination. For vibration free operation all rotors are dynamically balanced. Shafts are integral to the rotors, which prevents loosening over time.
Positive End Clearances
Eliminates the risk of shifting end clearances when installing or removing drive components.
Polished Sealing Surfaces
All shaft surfaces in contact with sealing members are polished to reduce seal wear and risk of leakage.
Individually Tested
Every PD PLUS™ blower is factory tested to assure you of the highest quality. While some manufacturers perform only sample testing, we go the distance to insure that your blower meets our rigid ISO 9001 registered quality standards.
Soil Vapor Extraction
Oil-Free Handling Fuel, Utility or Process Gases
Pulp/Paper Processing
Laser Recirculation Systems
Fluid Bed Combustion
Closed Loop Pneumatic Conveying
Vapor Recovery
Digester Gas Processing
Steam Compression
High-Performance Applications
Pressure Boosting
Every Tuthill blower is backed by the Tuthill Vacuum & Blower Systems limited warranty:
Type of Application
Atmospheric Air or Process Air without Liquids Present:
Process Gases Other than Air, or Any Liquid Injected Application:
24 months from date of shipment, or 18 months after initial startup date, whichever occurs first.
18 months from date of shipment, or 12 months after initial startup date, whichever occurs first
