• Cast Aluminum or Bronze Construction
• Thermoplastic Rubber Diaphragm & Polyurethane Flapper Valves
• 1.5" or 3" NPT Port Sizes
• Self-Priming up to 20 ft.
• Powered by B&S Engine, 115 VAC Weather Proof Electric Motor, Gast Pneumatic motor or Hand Operated
• Available in 3.5HP engine, 1.5HP motor or 1.75HP Air motor
• Delivers up to 88 GPM, and 11 PSI

The AMT line of 3" Diaphragm pumps, often referred to as Mud pumps or Sludge pumps, is designed to pump mud, slurry, sewage and thick liquids that have the ability to flow. AMT Diaphragm pumps are available with a choice of drivers to meet your application requirements:

Heavy duty gear box with precision ground triple strength steel gears. Each unit features 3" NPT steel suction strainer, two 3" NPT nipples and wheel kit with 10" semi-pneumatic transport wheels for portability. Pumps are designed for use with non-flammable liquids which are compatible with pump component materials.
1-1/2" Hand Operated Diaphragm Pump
The AMT Model 4790-97 diaphragm pump is designed for the transfer of fresh or salt water containing sand, small stones and debris. Neoprene diaphragm and flapper valves. The unit is equipped with an 18" brass handle and cast iron pumping platform with built in handle storage.