2 Inch SS304 AODD Pump - Stainless Steel Air Diaphragm Pump for Slurry

2 Inch SS304 AODD Pump - Stainless Steel Air Diaphragm Pump for Slurry & Viscous Fluids

The NOVAPUMP 2 Inch SS304 AODD Pump is the workhorse of our stainless steel diaphragm pump range, built for demanding industrial applications involving abrasive slurries, high-viscosity fluids, and aggressive media. The full 304 stainless steel construction provides superior mechanical strength and corrosion resistance, making it the go-to choice for mining, wastewater, and heavy industrial fluid transfer where lesser pumps fail.

Technical Specifications

• Size: 2 inch inlet/outlet (flanged ANSI 150#)
• Max Flow Rate: 500 L/min (132 GPM)
• Max Head: 84 meters (276 ft)
• Air Supply: 2-8 bar, 3/4 inch air inlet
• Body Material: 304 stainless steel, investment cast
• Diaphragm: Santoprene (PTFE, Buna-N, Viton options)
• Ball Valves: 316 stainless steel or PTFE
• Seats: 304 SS with PTFE seal ring
• Max Solids: 12 mm (nearly 1/2 inch)
• Max Viscosity: 20,000 cP
• Weight: 28 kg

Key Features

• 12mm Solids Handling: Large ball check valves pass nearly half-inch solids without clogging - ideal for slurry and wastewater
• Investment Cast Body: Precision-cast 304 SS provides dimensional accuracy and uniform wall thickness for pressure integrity
• Heavy-Duty Air Motor: Oversized air motor with 3/4 inch air inlet provides stall-free operation under high back-pressure
• Lube-Free Air Valve: Ceramic spool air valve operates without lubrication - reduces maintenance and eliminates oil contamination risk
• Dual Suction Ports: Two suction manifold ports for dual tank suction or left/right inlet configuration

Applications

Mining slurry and tailings transfer, wastewater sludge pumping, ceramic slip and glaze transfer, paint and coating circulation, and tank truck unloading of viscous products.

FAQs

Q: Can it handle abrasive slurries?
Yes. The 12mm solid passage and 304 SS construction handle abrasive mining and ceramic slurries. For extreme abrasion, PTFE diaphragms are recommended.

Q: What is the maximum viscosity?
20,000 cP (approximately the consistency of molasses at room temperature). For higher viscosities, a positive displacement pump may be more suitable.

Q: Does the air valve need lubrication?
No. The ceramic spool valve is designed for lube-free operation. This eliminates oil mist in exhaust air and reduces maintenance intervals.

CE Certified | 12-Month Warranty | Spare Diaphragm Kit Included with First Order