Product Description
Yamada Pumps NDP-20BSE Type, Model 851521 NDP-20 Series, Air Operated Double Diaphragm Pump, EPDM Diaphragm, EPDM Flat Check Valve / O-Rings, Stainless Steel (316) Material, 31.7 GPM Max Flow, 3/4" NPT Fluid Port, 3/8" Female NPT (includes ball valve) Air Inlet, 3/4" Female NPT (includes silencer) Air Exhaust, Aluminum Air Motor, 18 Feet Max Suction Lift
| Actual Weight | 33 | 
| Air Exhaust | 3/4" Female NPT (includes silencer) | 
| Air Inlet | 3/8" Female NPT (includes ball valve) | 
| Air Supply Pressure | 20 to 100 PSI (1.4 to 7 kgf/cm²) | 
| Diaphragm | EPDM | 
| Discharge Volume Per Cycle | 0.163 gallons (615 cc) | 
| Fluid Port | 3/4" NPT | 
| Liquid Temperature | 212° F (100° C) Max | 
| Material | 316 Stainless Steel | 
| Max Cycles Per Minute | 195 | 
| Maximum Flow (GPM) | 31.7 GPM | 
| Max Suction Lift | 18 Feet | 
| Model Number | 851521 | 
| Model Series | NDP-20 Models | 
| Motor | Aluminum Air Motor | 
| Solids (Inches) | 1/16" dia. (1.6 mm) | 
| Type | 851521 | 
| Valve / Seat / O-Ring | EPDM | 
 
             
                  
             
                  
             
         
         
           
                   
           
                   
           
                   
           
                   
           
                  