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Aluminium double-diaphragm pump with top discharge and bottom intake connections

Dayton

Dayton 6PY44 Double Diaphragm Pump 49 GPM

SKU CH-EMMT-QVBYA MPN 6PY44

Air-operated double diaphragm pump moves up to 49 gallons per minute using Buna-N diaphragms and 316 stainless steel check seats

  • TypeDrain Components
  • Delivers up to 49 gpm for high-volume transfer
  • Air-operated design runs on compressed air without electricity
  • Buna-N diaphragms resist oil and common chemicals
  • 316 stainless-steel check seats withstand corrosive fluids
  • Maximum air consumption of 55 scfm for efficient operation

Application & operation

This air-operated double diaphragm pump handles fluid transfer in industrial and commercial plumbing systems. Buna-N diaphragms and 316 stainless steel check seats resist wear from abrasive or corrosive media. The unit delivers up to 49 gallons per minute with a maximum air consumption of 55 scfm. Connections use 1-inch NPT ports for discharge and 1-inch FNPT for intake, plus a 3/8-inch FNPT air inlet.

Suitable uses & limits

The pump suits facilities that need a self-priming, stall-free transfer solution for chemicals, slurries or wastewater where electricity is unavailable or hazardous. Buyers who require a submersible design, electric drive, or flow rates above 49 gpm should look at other equipment. The aluminum body may not be compatible with highly aggressive acids or solvents.

Deciding specification

Maximum flow rate is 49 gpm at 55 scfm air consumption, so the compressed-air supply must sustain that volume to reach rated output. If the available air line cannot deliver 55 scfm, actual throughput will be lower and the pump may not meet the process demand.

Highlights

  • Delivers up to 49 gpm for high-volume transfer
  • Air-operated design runs on compressed air without electricity
  • Buna-N diaphragms resist oil and common chemicals
  • 316 stainless-steel check seats withstand corrosive fluids
  • Maximum air consumption of 55 scfm for efficient operation

Specifications

TypeDrain Components
BrandDayton
Model6PY44

Questions about this item

Which Dayton 6PY44 diaphragm material should I choose for my application?

The pump uses Buna-N diaphragms, which suit general-purpose fluids and resist oil-based media.

What flow rate can I expect from the 49 gpm rating once the pump is installed?

The 49 gpm is the maximum flow rate under ideal air supply; actual output depends on air pressure, fluid viscosity and piping restrictions.

How does the 3/8 in FNPT air intake limit the 55 scfm air consumption?

The 3/8 in FNPT air inlet caps practical airflow; you need a supply line and regulator sized to deliver 55 scfm at operating pressure without excessive pressure drop.

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