1-1/2" Air Operated Double Diaphragm Pump, 40GPM

1-1/2 inch air operated double diaphragm pump has a great many usages, such as such as pumping a variety of toxic, flammable, volatile liquid, acids, alkalis, corrosive liquids, paint, rubber and paint binders. The pneumatic dual diaphragm pump can transport high temperature media up to 150 ℃. It is also a useful air tool for cleaning sediment contaminants in shaft, tunnels and sewers.

Features

• Air operated double diaphragm pump adopts pilot operated type air valve to eliminate the air tool downtime and extend its service life. All the parts can be replaced when the liquid chamber is not opened.
• Designed with multiport, the pneumatic dual diaphragm pump can be installed easily.
• It structures with non-porous embedded diaphragm to improve the usage rate of diaphragm and make it more compact.
• Air powered diaphragm pump can be used as a movable-type material transfer pump because it has such advantages as small in size, easy moving, no need base, small occupied area and easy installation.
• AODD pump can be externally connected to electromagnetic valve for remote control. And the reversing valve requires no lubrication.

Specification

Details

1. Discharge outlet (top cover) 2. Plug 3. Air valve cover gasket 4. Large slider aluminum piece 5. Piston 6. V-Ring 7. Small slider 8. Auxiliary shaft O-ring 9. Auxiliary shaft cover 10. Sliding plate 11. Sliding plate gasket 12. Air valve chamber 13. Plug 14. Sealing ball 15. Sealing seat 16. Air valve chamber cover 17. Auxiliary shaft

18. Large slider O-ring 19. Large slider plastic ring 20. Colum 21. Pitman shaft 22. Pitman shaft sleeve 23. V-Ring 24. Piston sleeve 25. Clamp screw 26. Clamp O-ring 27. Outer clamp 28. PTFE diaphragm 29. Poly rubber diaphragm 30. Inner clamp 31. Baffle 32. Air valve chamber gasket 33. Muffler 34. Feed inlet (bottom cover)

Diagram of Air Consumption

Diagram of Fluid Flow

Dimension Drawing

Units: mm

Applications

Tips: How to Maintain an Air Operated Double Diaphragm Pump?

Air operated double diaphragm pump is no need any lubricant before and during you use it. But after you disassemble the pneumatic dual diaphragm pump or when you reassemble it, it is better to fill some proper grease between pitman shaft and pitman shaft sleeve. When you install the diaphragm clamp, you also can coating a layer of grease for sealing easily.
2. If you need to install the air valve and guide valve, it is better to fill a small amount of grease for better lubrication.
3. Before you install the AODD pump, you need to clean all the inside parts, check whether all the sealing parts are well sealed.
4. Air valve cover gaskets and air valve chamber gaskets have two sides that can’t be installed reversely. The upper guide valve should be confirmed in place before tightening bolts, otherwise it will damage the thimble. Four bolts on the guide valve should be balanced and not over tight, otherwise the shell valve will be damaged.