Description
Chemical processing plants dealing with heavy combustible dusts require high-volume suction without the ignition hazards of electric motors. The Nilfisk VHC120N AU 9.7 Gallon Steel compressed air vacuum uses multi-Venturi jets to draw 119 CFM of intake air. Built for heavy hazardous collection, this pneumatic machine clears dense dust without flash risk, but demands high compressed air supply lines.
Heavy 14-gauge carbon steel forms the collection drum and filtration chamber, finished with conductive paint that routes static charges toward earth ground. The multi-nozzle Venturi block contains zero rotating components, preventing mechanical friction sparks and thermal rise during non-stop operation. A Class M antistatic star filter works in series with a downstream certified HEPA filter cartridge, trapping abrasive chemical powders while sound-absorbing foam silencers baffle pneumatic exhaust noise.
High Flow Pneumatic Architecture
Moving heavy combustible particulates requires high intake air velocity without electrical ignition hazards. This pneumatic platform pairs multi-Venturi suction power with clinical HEPA exhaust particulate containment.
- Multi Jet Pneumatic Venturi Block generates 119 CFM intake airflow without electrical components.
- Certified Downstream HEPA Filter retains 99.97 percent of toxic particulate down to 0.3 microns.
- 9.7-Gallon Heavy Gauge Steel Drum resists structural collapse under deep negative static pull.
- Class M Antistatic Star Filter provides 8.6 square feet of primary particulate separation area.
- External Manual Filter Shaker cleans filter pleats without opening the sealed vacuum chamber.
- Pneumatic Exhaust Muffler dampens compressed air discharge sound down to acceptable plant levels.
- Heavy Duty Grounding Clamp drains friction static voltage straight to structural steel beams.
Multi Jet Flow Testing
Compressed air bench tests record consumption of 119 CFM at 90 PSI through the multi-Venturi manifold. Suction gauges measure 130 inches of static water lift with intake air velocity hitting 112 CFM. Sound monitoring meters log 74 dBA at 4 feet from the muffled exhaust ports. The steel drum exterior temperature drops 7°F below ambient room levels during continuous test runs, confirming zero thermal ignition risk during extended powder collection.
Industrial Fleet Service Directives
The balanced wheeled cart moves across flat production concrete without resistance, but lifting this 60-pound machine into truck beds requires two technicians. Solvent recovery bays and grain elevators gain spark-free suction power, but facilities lacking a dedicated 30 Horsepower industrial air compressor cannot maintain the required air volume to drive the multi-jet Venturi block.
- Drain inline air moisture filters each day to stop compressed air scale buildup in the Venturi.
- Cycle the manual filter shaker lever for 20 strokes before opening the lower collection drum.
- Verify grounding strap continuity using a digital ohmmeter before each hazardous zone run.
Manufacturer Guarantee Box Inventory
Nilfisk covers the VHC120N with a 2-Year limited warranty on the steel drum and multi-Venturi pneumatic pump. The shipment includes the complete vacuum unit, antistatic star filter, certified HEPA filter, 16-foot conductive hose, double bend wand, conductive floor squeegee, and brass grounding clamp.
