The Wilden® 25mm (1") Pro-Flo® series bolted plastic air-operated double-diaphragm (AODD) pump combines maximum performance and efficiency with superior containment. Wilden's bolted-construction pumps offer improved flow rates and a redesigned liquid path that reduces internal friction for maximum output and longer diaphragm life.
Features & Benefits
• DIN or ANSI flanged inlet/discharge liquid connections
• Decades of proven performance
• Bolted construction for superior containment
• Large-solids passage
• High suction lift
• Ease of operation and maintenance
• Increased on/off reliability
• Longest Mean Time Between Repair (MTBR)
Wetted Housings - Materials
Aluminum - 9 kg (20 lb)
Stainless Steel - 17 kg (37 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal
Air Valve - Polypropylene, Acetal
Diaphragm Pump Specifications:
- Air Inlet: 1/4" FNPT
- Liquid Inlet: 25mm (1")
- Liquid Discharge: 25mm (1")
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
- Rubber – 5.2m (17.0') Dry, 9.0m (29.5') Wet
- TPE – 7.6m (25.0') Dry, 9.0m (29.5') Wet
- Full-Stroke PTFE – 4.7m (15.3') Dry, 9.0m (29.5') Wet
- Reduced-Stroke PTFE – 2.8m (9.1') Dry, 9.0m (29.5') Wet
- Maximum Flow Rate:
- Rubber – 172 lpm (45.5 gpm)
- TPE – 171 lpm (45.2 gpm)
- Full-Stroke PTFE – 167 lpm (44.1 gpm)
- Reduced-Stroke PTFE – 155 lpm (41 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 3.2 mm (1/8'')
- *Displacement Per Stroke:
- Rubber – 0.3 L (0.08 gal)
- TPE – 0.3 L (0.08 gal)
- Full-Stroke PTFE – 0.3 L (0.08 gal)
- Reduced-Stroke PTFE – 0.3 L (0.08 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)
Geolast® | -40°C to 82°C (-40°F to 180°F)
Neoprene | -18°C to 93°C (0°F to 200°F)
PTFE* | 4°C to 104°C (40°F to 220°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.
Experience excellent energy conservation with 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 vast variety of industrial and commercial applications, such as:
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process
