Model 4042WB-26x52™ Spill Containment Dual Drum Scale with Bladder


  • Accurately weighs the net remaining chemical that has NOT been dispensed including splashes and spills that are contained within basin
  • Meets secondary spill containment requirements by the EPA, OSHA, and other local agencies
  • Standard base size: 26″x52″ (plus bladder)- other sizes available
  • Net capacity: Up to 2,000 lbs. (907 kg) – other capacities available
  • Containment capacity: 88 gal.
  • High accuracy of ±0.1%
  • Single or multi-channel controllers with easy readability to 0.1 lb. (kg)
  • Readout in pounds, kilograms, gallons or liters

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Scaletron 5 Year Warranty on All Scale Products

Dual Drum Scale with Expandable Bladder is Ideal for Frequent On/Off Loading and Meets EPA & OSHA Requirements for Spill Containment

The Model 4042 WB-26×52 Spill Containment Dual Drum Scale with Bladder is designed for weighing two tanks or drums up to 26″ in diameter and offers a net capacity of up to 2,000 lbs. The containment basin and deployed bladder hold a total of 88 gallons. Featuring corrosion resistant construction and a four load cell design, the scale base is ideal for applications requiring frequent on/off loading of containers and meets secondary spill containment requirements of government agencies. Indicators are available from 1 to 4 channels with 4-20 mA outputs and optional set point relays. PATENTED – MADE IN USA.

Standard Features

  • Rugged steel construction protected by corrosion resistant, zinc oxide primed and dry powder epoxy coated finish, with polyethylene containment basin for use in harsh environments
  • Accommodates off-center loads – drums can be placed anywhere on the containment platform and still obtain an accurate reading
  • Expandable bladder automatically deploys in the event of a major spill
  • Four (4) NTEP stainless steel shear beam, temperature compensated load cells with stainless steel leveling feet
  • Load cells are mounted outside of spill containment basin to eliminate damage due to chemical spills
  • All hardware is stainless steel to prevent corrosion
  • Electronic indicator housed in NEMA 4X, UL approved enclosure to provide protection from acids
  • 20 ft. of 4 conductor wire cable

Available Controllers

  • AccuPro 5000 Digital Controller with one or 2 channels, encoder knob or 3 button keypad, audible alarm and 4-20 mA output signal – scale or loop powered
  • AccuPro 6000 Digital Controller with one or 2 channels, touch screen, audible alarm and 4-20 mA output signal – scale powered


  • High and low level set points
  • 0-5V or 0-10V output signal
  • Remote mounting of indicator box up to 200 feet (61 meters) away – includes junction box and additional length of 4 conductor wire cable


  • Scale is designed to accurately measure weight of alum, ammonia, caustic, fluoride, phosphate, polymers, sodium aluminate, sodium bisulfate, sodium hydroxide, sodium hypochlorite and other liquids or powders