Gardner Denver® is a leading manufacturer of an extensive line of positive displacement blower and vacuum pump technologies to match the specific requirements of a wide range of air and gas applications. Each of the five positive displacement technologies available deliver constant air or gas, up to 14,000 cfm (23,800 m3/h) at varying pressure to 36 psig (2.5 bar) or vacuum to 28" Hg (950 mbar). A complete offering of factory packaged solutions, accessories, genuine parts, lubricants and services are available.
Wittig® RFL Series - Rotary Vane
Superior quality and performance
Designed specifically for liquid vacuum trucks and trailers
High flow, forced fan cooled
Available with integral inline filter and pressure/vacuum changeover valve
Mechanical lubricating oil delivery to vanes and bearings
Performance Overview
Airflow Range: 200 - 430 cfm (340 - 730 m3/h)
Pressure to 35 psig (2.07 bar)
Pressure, Normal Operation, 14.5 psig (1.00 bar)
Vacuum to 27 "Hg (914 mbar)
Two models available
Compact and flexible mount design for ease of installation
Proven efficient and continuous vacuum performance
Highest quality vanes for superior service life
Wittig® RFW Series -Rotary Vane
Liquid cooled for high continuous vacuum or pressure operation
Superior quality and performance
Designed specifically for liquid vacuum trucks and trailers
Available with integral inline filter and pressure/vacuum changeover valve
Mechanical lubricating oil delivery to vanes and bearings
Performance Overview
Airflow Range: 420 - 940 cfm (710 - 1,600 m3/h)
Pressure to 35 psig (2.07 bar)
Pressure, Normal Operation, 14.5 psig (1.00 bar)
Vacuum to 27 "Hg (914 mbar)
Three models available
Compact and flexible mount design for ease of installation
Proven efficient and high continuous vacuum performance
Superior quality vanes for longer service life
Wittig® RTL22- Rotary Vane
High Performance in a Compact Size
Clockwise or Counter-Clockwise Rotation
Dry Running Sliding Vanes
Designed for Off-Loading Liquid Bulk Materials
Quality Construction - ISO 9001
Performance Overview
Airflow range: 52 - 96 cfm (88 - 162 m3/h)
Pressure to 36.3 psig (2.5 bar)
Over Sized Cooling Fins and High Flow Fans Reduce Operating Temperatures For Longer Service Life
Totally Oil-Free Air
Internal Porting Design Reduces Noise Levels
Minimal Maintenance Required
Wittig® RTL60-100 Series - Rotary Vane
Ideal For Off-loading Dry Bulk Transports
Oil Free Air Delivery
Lower Operating Discharge Noise
High Performance From A Compact Size
Quality Construction ISO 9001
Engine, P.T.O., Hydraulic or Electric Driven
Performance Overview
Airflow Range: 165 - 413 cfm (280 - 700 m3/h)
Pressure to 29 psig (2.0 bar)
Double End Shaft For Clockwise or Counter Clockwise Operation
Built-in Non-return Check Valve Prevents Rotor Back Spin
Dual High Flow Fans Reduce Operating Temperature
Dry Running Sliding Vanes Automatically Adjust For Wear
Internal Porting Design Reduces Noise Levels
Minimal Maintenance Required
Wittig® Aqualine™ Series - Liquid Ring
Totally Oil Free Air Delivery
Spark Free Design
Very Quiet Operation
Compact and Efficient
Performance Overview
Airflow Range: 518 - 988 cfm (880 - 1,678 m3/h)
Intermittent Vacuum to 27 "Hg (914 mbar)
Continuous Vacuum to 24 "Hg (813 mbar)
Pressure to 21.3 psig (1.5 bar)
Three Models
Quiet operation- Under 70 dBA
No vanes to break or replace
Innovative, non-leaking seal design
Pro Air Conveying 70 West Woodlynn Avenue St. Paul, MN 55117 651-490-1183
