PROFESSIONAL BACKPACK SPRAYER FOR ACIDIC PRODUCTS

Diana HW

Diana HW is the professional backpack sprayer from the Dal Degan Hard Work Line, manually operated with a capacity of 16 liters, designed for the application of aggressive chemicals, acidic solutions, solvents, and technical detergents used in industrial, construction, agricultural, and professional cleaning sectors. Valves, seals, and components have been selected to ensure high chemical compatibility and long service life even in the most demanding applications. The seals are made of FKM/FPM, a high chemical resistance fluoroelastomer belonging to the same family of materials marketed under the Viton® brand by Chemours. This feature distinguishes Diana HW from the standard version and makes it particularly suitable for use with products requiring superior resistance to acids, solvents, and aggressive chemical compounds. Diana HW is ideally suited for professional cleaning of industrial and construction equipment, maintenance of systems and machinery with technical detergents, application of specific solvents, small-scale treatments with acidic solutions in agriculture and nurseries, and sanitation and professional maintenance activities requiring high chemical resistance. The semi-transparent recyclable polyethylene tank allows easy monitoring of liquid level during work. The integrated handle facilitates transport and filling operations, while the wide ergonomic shoulder straps ensure comfort even during prolonged use. The cap with hermetic closure and integrated vent valve helps increase operator safety when using chemicals. The pump can be configured for use with either the right or left arm, allowing the operator to choose the most comfortable position or alternate the operating side during work to reduce fatigue. The 50 mm diameter pump allows rapid achievement of the operating pressure between 3 and 5 bar and maintaining it constant with few strokes. The pump assembly can be easily disassembled without special tools, facilitating inspection, cleaning, and routine maintenance operations, particularly important when using aggressive chemicals. Standard equipment includes a 140 cm flexible hose, an ergonomic lever handle, and a 50 cm lance with adjustable nozzle that allows easy switching from fine mist to direct jet, adapting to different operational requirements.
Fields of Application
  • Industrial cleaning of equipment, machinery and systems with acidic products and solvents
  • Building and construction site maintenance
  • Acidic treatments in agriculture, nurseries and professional orchards
  • Professional sanitization with aggressive detergents and disinfectants
  • Application of technical solvents on extended surfaces
  • Professional cleaning in food, hospitality and mechanical sectors
  • Maintenance of workshops, warehouses and production environments
  • Acidic chemical treatments on plants and crops
NOMINAL CAPACITY 16 L
OPERATING PRESSURE 3 – 5 BAR
TANK MATERIAL SEMI-TRANSPARENT RECYCLABLE POLYETHYLENE
GASKET MATERIAL FKM/FPM (fluoroelastomer of the Viton® family)
PLASTICS AND VALVES SELECTED FOR RESISTANCE TO AGGRESSIVE LIQUIDS
CHEMICAL RESISTANCE SUITABLE FOR ACIDIC PRODUCTS WITH pH < 7, SOLVENTS, PROFESSIONAL DETERGENTS
CAP HERMETIC CLOSURE WITH PRESSURE RELIEF VALVE
LEVEL INDICATOR SEMI-TRANSPARENT TANK
PUMP 50 mm DIAMETER, REMOVABLE WITHOUT TOOLS
OPERATING LEVER ROBUST AND ERGONOMIC
CONFIGURATION CONVERTIBLE FOR RIGHT OR LEFT ARM USE
CARRYING SHOULDER CARRY WITH LONG AND COMFORTABLE STRAPS, OR HAND CARRY WITH BUILT-IN HANDLE
HOSE SUPPLIED 140 cm
LANCE 50 cm WITH LEVER HANDLE
NOZZLE TYPE CONTINUOUSLY ADJUSTABLE, CONE SPRAY OR SOLID STREAM
DIMENSIONS (L X W X H) 40 x 17 x 50 cm
EMPTY WEIGHT 2.90 kg
IDENTIFYING COLOR BLUE DETAILS (Hard Work line)
  • Certified chemical resistance: FKM/FPM gaskets (Viton® family) and valves/plastics selected for acids, solvents and aggressive products
  • Professional autonomy: 16-liter capacity for treatments on extended surfaces
  • Generous 50 mm pump: reaches pressure quickly with few strokes
  • Ambidextrous: convertible for right or left arm use
  • Easy maintenance: pump removable without special tools for inspection and cleaning
  • Safety: hermetic cap with pressure relief valve for internal pressure control
  • Visual level control: semi-transparent tank always visible
  • Carrying comfort: long and comfortable straps for prolonged shoulder use
  • Ready to use: 140 cm hose and 50 cm lance included as standard

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DAL DEGAN will be exhibiting at EIMA 2026

Hall 37 – Stand C16

Bologna, Italy | 10–14 November 2026