Purpose-built rotary vane vacuum technologies engineered for deeper vacuum, faster loading, greater working reach, and continuous-duty reliability across septic, municipal, industrial, and environmental transport applications.

Gardner Denver has engineered mobile vacuum technologies for servicing septic systems, operating combination jetting trucks, or supporting industrial and oilfield operations, vacuum performance directly impacts productivity.

Maximize Vacuum Capability

Deeper, more consistent vacuum performance cuts loading times and boosts productivity at every stop, whether you're removing sludge, servicing septic systems, or running municipal vacuum equipment. Stable vacuum also reduces equipment strain.

Choose the Right Cooling Technology

Vacuum applications place different demands on a pump. Some prioritize installation simplicity and dependable daily operation, while others involve extended operating cycles where heat management matters more.

Prevent Downtime Before It Starts

Reliable vacuum performance starts with systems engineered for transport applications. Proper operating conditions and routine maintenance extend equipment life, keep vacuum performance consistent, and reduce downtime.

Air-Cooled Technology

Improve Vacuum Performance

Air-cooled vacuum pumps provide a compact, flexible solution for a wide range of vacuum truck applications. The Wittig RFL Series has earned a long-standing reputation across septic, sludge removal, oil well service, and industrial vacuum operations where reliable vacuum performance and installation flexibility are critical.

Gardner Denver air-cooled vacuum technologies help owners and operators:

  • Achieve reliable vacuum performance
  • Support flexible installation configurations
  • Improve operational efficiency
  • Simplify service and maintenance access
  • Maintain productivity across demanding vacuum applications

Engineered for transport environments, air-cooled rotary vane technology delivers dependable performance while supporting the uptime and serviceability fleet operators depend on every day.

RFL
Water-Cooled Technology

Support Demanding Duty Cycles

Some vacuum applications require equipment engineered for continuous waste collection and liquid transfer operations. The Wittig RFW Series combines a compact water-cooled rotary vane design with versatile mounting options and has become a trusted solution across septic, sewage collection, combination jetting/vacuum vehicles, and frac water recovery applications.

Gardner Denver water-cooled vacuum technologies help fleets:

  • Maintain dependable vacuum performance
  • Support demanding waste collection operations
  • Improve equipment utilization
  • Accommodate multiple drive configurations
  • Maximize uptime in transport applications

As vacuum truck operations continue to evolve, selecting technology engineered specifically for the application remains critical to maintaining productivity, reliability, and long-term operational performance.

RFW
Wittig Advantage

The Wittig Way

Gardner Denver Wittig has expertise in both vacuum applications for loading liquids or sludge onto waste tankers and compressor applications for unloading bulk road tankers. We did the pioneering work on rotary vane compressor/vacuum pumps and have maintained a program of development and improvement ever since.

  • Reliable and cost-effective
  • Practically pulsation-free compressed air
  • Compact design delivered
  • Ready for connection/installation
Wittig Way

Choose the Right Cooling Technology

Selecting the right cooling technology helps improve reliability, maintain consistent vacuum performance, and extend equipment life under real-world operating conditions.

Operational Priority

Air-Cooled RFL Series

Water-Cooled RFW Series

Best Suited For

Septic, grease trap, industrial service

Combination jetting, slurry, heavy-duty vacuum applications

Cooling Method

Air cooled

Water cooled

Continuous Vacuum

24 inHg

24 inHg

Maximum Intermittent Vacuum

24 inHg

27 inHg

Heat Management

Natural air cooling

Water-assisted cooling for demanding duty cycles

Installation Flexibility

Compact, simple installation

Designed for continuous-duty transport systems

Drive Options

PTO, hydraulic, gearbox, belt drive

PTO, hydraulic, gearbox, belt drive

Common Equipment

Septic trucks, grease trucks, industrial service vehicles

Combination jetting trucks, waste collection, slurry and oilfield equipment

Primary Operational Advantage

Simplicity, reliability, installation flexibility

Continuous-duty performance and superior heat management

 

Engineered for the Vacuum Applications Fleets Depend On

Vacuum truck applications place unique demands on equipment, requiring reliable vacuum performance, dependable operation, and technologies engineered for real-world transport environments.

  • Septic tank and cesspool pumping
  • Sludge removal and waste collection
  • Restaurant grease trap service
  • Sewer and municipal utility operations
  • Combined suction and jetting vehicles
  • Flood and spill cleanup
  • Oil well service and mud hauling
  • Frac water recovery
  • Industrial liquid recovery and transfer

Vacuum Truck Frequently Asked Questions

Vacuum truck loading speed depends on more than pump size alone. Vacuum depth, hose length, system restrictions, air leaks, operating temperature, and overall vacuum system efficiency all influence how quickly material can be recovered. Selecting a vacuum pump that matches the application and maintaining consistent operating conditions helps improve productivity while reducing loading times and fuel consumption.

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