Air Operated Double Diaphragm / Pump Selection Guide

Characteristics
Chart
Heavy Duty Ball
Metallic
Heavy Duty Flap
Metallic
Containment Duty
Non-Metallic
Standard Duty
Metallic
Standard Duty
Non-Metallic
Port Size 1" through 4" 1" through 4" 1" through 3" 1/4" through 3" 1/4" through 3"
Max Flow 988 lpm (260 gpm) 988 lpm (260 gpm) 901 lpm (238 gpm) 901 lpm (238 gpm) 901 lpm (238 gpm)
Max Discharge Heads 88m of water @ 125psi 88m of water @ 125psi 88m of water @ 125psi 88m of water @ 125psi 88m of water @ 125psi
Max Disp. Per Stroke 6.8 L 6.15 L 4.73 L 3.56 L 3.41 L
Max Dry Prime 20 ft (6 m) 24 ft (7 m) 18 ft (5.5 m) 20 ft (6 m) 20 ft (6 m)
Max Solids Handling 22 mm 76 mm 18 mm 13 mm 13 mm
Fluid Characterisitcs          
Water Best Type Best Type Best Type Best Type Best Type
Suspended Solids Best Type Suitable Suitable Best Type Suitable
Non-Suspended Solids Best Type Best Type Non-Recommended Limitations Non-Recommended
Line Size Solids Non-Recommended Best Type Non-Recommended Non-Recommended Non-Recommended
Sludge Slurry Best Type Best Type Limitations Suitable Limitations
High Viscosity Best Type Suitable Suitable Suitable Suitable
Highly Abrasive Best Type Best Type Limitations Suitable Limitations
Moderately Abrasive Best Type Best Type Limitations Suitable Limitations
Low Abrasive Best Type Best Type Suitable Best Type Suitable
Corrosion Suitable Suitable Best Type Suitable Best Type
Installation          
Permanent Best Type Best Type Suitable Suitable Suitable
Portable Suitable Best Type Best Type Best Type Best Type
Containment Limitations Limitations Best Type Limitations Limitations
Flooded Suction Best Type Suitable Suitable Suitable Suitable
Suction Lift Suitable Best Type Suitable Suitable Suitable
Submerged Suitable Suitable Limitations Suitable Limitations
Duty          
On-Demand Best Type Best Type Best Type Best Type Best Type
Continuous Best Type Suitable Suitable Suitable Suitable