Pumping Equipment & Drum Unloaders

Wes Adhesives distributes Graco’s fluid dispensing equipment. Not only do we have diaphragm pumps and drum/ pail unloaders, we also carry a wide variety of piston pumps and pressure washers. Graco manufactures three different types of drum unloading equipment. All of these supply systems have pneumatically operated piston pumps to transfer the fluid from the drum into a fluid line connected to a head to be dispensed.

Therm-O- Flow Drum and Pail Unloaders

The Graco Therm-o-flow hot melt unloaders come in 5,8,30, & 55 gallon options.

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  • Pump up to 2.8 gallons per minute
  • Intuitive EasyKey™ Controls simplify setup, operation and diagnostic functions
  • Integrated self-diagnostics makes service quick and easy
  • NXT Air Motor provides quieter operation, better performance and improved efficiency

Warm Melt Supply pumps

  • This unit is the intermediary between the hot melt system and the ambient system
  • Platen can heat up to 150 Fahrenheit and hoses can be heated to 215 Fahrenheit
  • Pneumatically operated with electrical wiring for heated elements
  • Configurable to fit your unique application and material


Ambient Supply Pumps 5, 8, 30, 55 gallon


  • Dispense ambient sealants, adhesives and other medium to high-viscosity materials
  • Long-lasting durability - Check-Mate pump is a time-tested, proven performer
  • Reduces icing and noise - new NXT air motor is up to 50% quieter than previous models
  • Fast and smooth changeover for a more consistent bead
  • Intuitive, easy-to-use pneumatic and electronic controls to better manage your process - DataTrak tracks material usage and flow and provides runaway pump protection

Diaphragm pumps

Diaphragm pumps are extremely versatile, low pressure. fluid transfer pumps that can move a wide variety of fluids for applications including; bulk tank supply, waste fluid evacuation, sludge evacuation, spraying or dispensing adhesives, conventional air spray supply pump for paints and coatings, and for transferring acids and caustics.

These pumps range from 1/4" center section with pumping power of 5 gpm to a 3" center section with pump power of 275 gpm. Not only is the size versatile but the material comprising the pump has a wide range as well. These span from polypropylene to stainless steel. If you are uncertain of the pump you will need for your application, we are more than willing to extend our expertise and help you find the right pump.

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Pressure washers

Graco Hydra-clean pressure washers are air operated, piston powered pressure washers designed for the toughest conditions. They work great on offshore oil rigs, and can be mounted on a cart for mobility.