Wilden Unitec AODD Air-Operated Double-Diaphragm Chemical Transfer Pump Plastic

Wilden Unitec AODD Air-Operated Double-Diaphragm Chemical Transfer Pump Plastic

The Wilden Unitec is a compact air-operated double-diaphragm (AODD) pump built with a machined plastic body for compatibility with a wide range of chemicals and solvents. It operates entirely on compressed air — no electricity required at the pump head — making it inherently safe for use with flammable or volatile fluids. The double-diaphragm design creates a reciprocating pumping action that handles liquids of varying viscosities without the need for mechanical seals.

Specifications & What's Included

• Brand: Wilden (a Dover Company)
• Model: Unitec
• Pump Type: Air-Operated Double-Diaphragm (AODD)
• Body / Wetted Material: Machined Plastic
• Drive: Pneumatic (compressed air)
• Maximum Air Pressure: 7 Bar (100 psig)
• Diaphragm housing: tan/beige elastomer diaphragms visible in photos
• Inlet and outlet ports: plastic threaded fittings on left, right, and top manifold faces
• CE marked (visible on label)
• Condition: Open Box — new from manufacturer; unused

Applications

Wilden AODD pumps are widely used in chemical processing, pharmaceutical manufacturing, semiconductor fabrication, water treatment, and industrial manufacturing wherever corrosive, abrasive, or solvent-based fluids need to be transferred safely. The all-plastic wetted path makes the Unitec well suited for acids, bases, solvents, and other aggressive chemicals that would attack metallic pump components. Because AODD pumps are air-driven and have no electric motor at the fluid end, they are commonly used in hazardous-area and explosion-risk environments. They are also self-priming and can run dry without damage, which makes them practical for drum-emptying, transfer, and batch-dosing applications. Wilden, a Dover Company brand, has manufactured AODD pumps since the 1950s and is one of the leading names in the category.