The 13mm (1/2") Pro-Flo® series, Wilden's original air-operated double-diaphragm (AODD) pumps. Design features clamped metal pumps, which provide a straightforward and robust solution for general industrial applications. These pumps are designed with ease of maintenance in mind, allowing simple installation and quick serviceability—requiring only a single tool for disassembly and reassembly. Over time, countless Jim Wilden metal clamped pumps have reliably moved billions of gallons of fluid annually.
Features & Benefits
• NPT and BSP threaded inlet/discharge liquid connections for quick disconnect/connect
• Decades of proven performance
• Clamped connections for faster maintenance
• Low cost
• Simple installation
• Ease of operation and maintenance
Wetted Housings - Materials
Aluminum - 6 kg (13 lb)
Stainless Steel - 9.2 kg (20 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Conductive Polypropylene, Acetal, Conductive Acetal
Air Valve - Polypropylene, Conductive Polypropylene, Acetal, Conductive Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 13 mm (1/2")
- Liquid Discharge: 13 mm (1/2")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
- Rubber – 5.8 m (19.0') Dry, 9.5 m (31.0') Wet
- TPE – 5.2 m (17.0') Dry, 9.5 m (31.0') Wet
- PTFE – 4.9 m (16.0') Dry, 9.5 m (31.0') Wet
- Maximum Flow Rate:
- Rubber – 58.7 lpm (15.5 gpm)
- TPE – 58.3 lpm (15.4 gpm)
- PTFE – 54.4 lpm (14.4 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 1.59 mm (1/16'')
- *Displacement Per Stroke:
- Rubber – 0.11 L (0.029 gal)
- TPE – 0.11 L (0.029 gal)
- PTFE – 0.09 L (0.025 gal)
- * 1 cycle = 2 strokes
Elastomer Options
Buna-N | -12°C to 82°C (10°F to 180°F)
EPDM | -51°C to 138°C (-60°F to 280°F)
FKM | -40°C to 177°C (-40°F to 350°F)
PTFE* | 4°C to 104°C (40°F to 220°F)
Polyurethane | -12°C to 66°C (10°F to 150°F)
Saniflex™ | -29°C to 104°C (-20°F to 220°F)
Wil-Flex™ | -40°C to 107°C (-40°F to 225°F)
* 4°C to 149°C (40°F to 300°F) - 13 mm (1/2") and 25 mm (1") models only.
Vastly superior energy conservation and the maximum mean time between repair (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump with the simple yet durable Wilden® Pro-Flo® Air Distribution System (ADS). The Pro-Flo excels in a wide array of industrial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process

