The 38mm 1 1/2" P4 clamped metal pumps designed by Jim Wilden feature the original air-operated double-diaphragm (AODD) pump design. Here are the key points:
Rugged Design: These pumps have a straightforward and robust design, making them suitable for general industrial applications.
Ease of Maintenance: Clamped pumps are designed with maintenance in mind. They are easy to install and can be disassembled and reassembled using just a single tool.
Proven Performance: Over time, hundreds of thousands of Jim Wilden’s clamped pumps have successfully 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 - 13 kg (29 lb)
Stainless Steel - 20 kg (45 lb)
Cast Iron - 22 kg (49 lb)
Alloy C - 23 kg (51 lb)
Non-Wetted Housings - Materials
Center Section - Polypropylene, Acetal, Nickel-Plated
Air Valve - Polypropylene, Acetal
Air Chamber - Aluminum, PFA-Coated, Acetal, Nickel-Plated, Stainless Steel, Halar-Coated
Diaphragm Pump Specifications:
- Air Inlet: 1/2" FNPT
- Liquid Inlet: 38 mm (1-1/2")
- Liquid Discharge: 38 mm (1-1/2")v
- Connection Type: NPT/BSPT (Threaded)
- Maximum Suction Lift Capability:
- Rubber – 5.8 m (19.0') Dry, 8.0 (26.0') Wet
- TPE – 5.2 m (17.0') Dry, 8.8 m (29.0') Wet
- Full-Stroke PTFE – 6.4 m (21.0') Dry, 9.3 m (30.6') Wet
- Reduced-Stroke PTFE – 3.7 m (12') Dry, 8.5 m (28') Wet
- Ultra-Flex™ – 5.2 m (17.0') Dry, 8.5 m (28.0') Wet
- Maximum Flow Rate:
- Rubber – 288 lpm (76 gpm)
- TPE – 307 lpm (81 gpm)
- Full-Stroke PTFE – 330 lpm (87.2 gpm)
- Reduced-Stroke PTFE – 295 lpm (78 gpm) U
- Ultra-Flex™ – 269 lpm (71 gpm)
- Maximum Pressure: 8.6 bar (125 psi)
- Maximum Diameter Solids: 4.8 mm (3/16'') *Displacement Per Stroke:
- Rubber – 0.98 L (0.26 gal)
- TPE – 1.1 L (0.29 gal)
- Full-Stroke PTFE – 1.1 L (0.29 gal)
- Reduced-Stroke PTFE – 0.53 L (0.14 gal)
- Ultra-Flex™ – .76 L (0.20 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)
Neoprene | -18°C to 93°C (0°F to 200°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.
The Wilden® Pro-Flo® Air Distribution System (ADS) offers outstanding energy conservation and maximizes the mean time between repairs (MTBR) for your Air-Operated Double-Diaphragm (AODD) pump. This durable system excels in various industrial applications. If you have any specific questions or need further details, feel free to ask!
• Chemical
• Paint & Coatings
• Mining
• Oil & Gas
• Water & Wastewater
• Liquid Terminals
• Process

