Diaphragm Pumps
Air Operated Double Diaphragm Pumps
Air-operated double diaphragm pumps can move anything from fine chemicals (gentle, non-shearing action), to abrasive and viscous slurries (no close-fitting parts, low internal velocities), and almost any other product that can move. A few of the thousands of products now being pumped:
- Paints & solvents
- Pigments
- Resins
- Construction water & waste
- Mine tailings
- Chemicals
- Oils & lubricants
- Glues & adhesives
- Dyes
- Foods
- Tanker loading/unloading
- Marine barges
- Ceramic slips, slurries & glazes
- Latex
- Driller's mud
- Inks & printing liquors
- Against filter press
- Low density powders
- Handling Barrels, Jerry Cans, Carboys
Versatile Performance
- Can run dry indefinitely without damage.
- No shaft seals or gland packing.
- Infinitely variable flow & discharge pressure.
- Gentle non-shearing action.
- Automatic stop on closed discharge.
- Operates submerged or flooded suction.
- Self-priming from dry start.
- Pressures up to 100 PSI (7 bar).
- Low internal velocity reduces wear.
- Quick assembly/disassembly.
- Capable of pumping at high temperatures.
- Quiet, steady discharge.
- Safe for explosive environments.
- No pressure relief required.
- Pollution-free operation.
Air Operated Double Diaphragm Pumps: The air valve directs pressurized air to the back side of diaphragm 1. The compressed air is applied directly to the liquid column separately by elastomeric diaphragms. The diaphragm acts as a separation membrane between the compressed air and the liquid. Driving the diaphragm with air instead of the shaft balances the load and removes mechanical stress from the diaphragm, dramatically extending diaphragm life. The compressed air moves the diaphragm away from the center block of the pump.
The opposite diaphragm is pulled in by the shaft connected to the pressurized diaphragm. Diaphragm 2 is now on its air exhaust stroke; air behind the diaphragm has been forced out to atmosphere through the exhaust port of the pump. The movement of diaphragm 2 toward the center block of the pump creates a vacuum within chamber 2. Atmospheric pressure forces fluid into the inlet manifold forcing the inlet valve ball off its seat. Liquid is free to move past the inlet valve ball and fill the liquid chamber.
Why these Pumps Work Best: The heart of the Double Acting Air Operated Diaphragm Pump is the air valve which shifts the air supply to both diaphragms alternately with complete reliability under all conditions of head and flow. The air valve performs this function with a simplicity in design and serviceability.
Material of Construction
Polypropylene
Cast Iron
Cast Aluminium
S. S. 316
Teflon (PTFE)
Diaphragms & NRV Balls are offered in different elastomers.
Neoprene / EPDM / Nitrile / PTFE / Hypalon
Accessories: 1) F.R.L : Air Filter, Regulator and Lubricator are required in Air line to provide clean, moist free air at constant pressure to the pump. FRL also helps to lubricate air valve assembly (connecting shaft and piston). 2) Needle valve in brass.
Air Operated Double Diaphragm Pumps
Minimum Order Quantity: 1 Piece
The pump can run dry identifinetly without damage.No shafts seals or gland packing.gentle non shearing sample.Self primimng from dry start.
Air Operated Double Diaphragm Pumps
Air-operated double diaphragm pumps can move anything from fine chemicals (gentle, non-shearing action), to abrasive and viscous slurries (no close-fitting parts, low internal velocities), and almost any other product that can move. A few of the thousands of products now being pumped:
- Paints & solvents
- Pigments
- Resins
- Construction water & waste
- Mine tailings
- Chemicals
- Oils & lubricants
- Glues & adhesives
- Dyes
- Foods
- Tanker loading/unloading
- Marine barges
- Ceramic slips, slurries & glazes
- Latex
- Driller's mud
- Inks & printing liquors
- Against filter press
- Low density powders
- Handling Barrels, Jerry Cans, Carboys
Versatile Performance
- Can run dry indefinitely without damage.
- No shaft seals or gland packing.
- Infinitely variable flow & discharge pressure.
- Gentle non-shearing action.
- Automatic stop on closed discharge.
- Operates submerged or flooded.
- Self-priming from dry start.
- Pressures up to 100 PSI (7 bar).
- Low internal wear.
- Quick assembly & disassembly.
- High temperature capability.
- Quiet, steady discharge.
- Explosion-safe operation.
- No pressure relief required.
- Pollution-free operation.
Air Operated Double Diaphragm Pumps: The air valve directs pressurized air to the back side of diaphragm 1. The compressed air is applied directly to the liquid column separately by elastomeric diaphragms. The diaphragm acts as a separation membrane between the compressed air and the liquid. Driving the diaphragm with air instead of the shaft balances the load and removes mechanical stress from the diaphragm, dramatically extending diaphragm life. The compressed air moves the diaphragm away from the center block of the pump.
The opposite diaphragm is pulled in by the shaft connected to the pressurized diaphragm. Diaphragm 2 is now on its air exhaust stroke; air behind the diaphragm has been forced out to atmosphere through the exhaust port of the pump. The movement of diaphragm 2 toward the center block of the pump creates a vacuum within chamber 2. Atmospheric pressure forces fluid into the inlet manifold forcing the inlet valve ball off its seat. Liquid is free to move past the inlet valve ball and fill the liquid chamber.
Why these Pumps Work Best: The heart of the Double Acting Air Operated Diaphragm Pump is the air valve which shifts the air supply to both diaphragms alternately with complete reliability under all conditions of head and flow. The air valve performs this function with a simplicity in design and serviceability.
Material of Construction
Polypropylene
Cast Iron
Cast Aluminium
S. S. 316
Teflon (PTFE)