Diaphragm Pump Yamada NDP20 series AODD pumps provide a maximum flow rate of 31.7 gallons per minute. Pumps are available in aluminum, stainless steel (316), and polypropylene construction, with a wide variety of diaphragm materials.
Port Dimensions ( 31.7 GPM Max. )
| Intake & discharge connection : | |
| Polypropylene ( PPG ) | 3/4″ Female NPT |
| Aluminum ( ADC -12 ) | 3/4″ Female NPT |
| Stainless Steel ( 316 ) | 3/4″ Female NPT |
| Air Inlet ( Inc. Ball Valve ) : | 1/4″ Female NPT |
| Air exhaust ( Incl. Silencer ) : | 3/4″ Female NPT |
| ANSI Flange also available – consult Yamada |
Maximum Liquid Temperature
| Diaphragm Material | Temperature |
| Buna N | 180°F ( 82°C ) |
| Neoprene | 180°F ( 82°C ) |
| Santoprene | 180°F ( 82°C ) |
| EPDM | 212°F ( 100°C ) |
| PTFE | 212°F ( 100°C ) |
| Hytrel® ( TPEE ) | 248°F ( 120°C ) |
| Viton® Fluoroelastomer | 248°F ( 120°C ) |
* The maximum liquid temperature for metal and kynar fitted pumps is determined by the elastomer ( diaphragm material ). Polypropylene pumps have a maximum liquid temperature of 180°F ( 82°C ) regardless of diaphragm material.
Air Supply Pressure ( All Models )
20 – 100 PSI ( 1.4 – 7 kfg/cm )
Discharge Volume Per Cycle
Rubber diaphragm : 0.163 gallons ( 615 cc )
PTFE diaphragm : 0.143 gallons ( 539 cc )
Maximum Cycles Per Minute
Rubber diaphragm: 195
PTFE diaphragm: 195
Maximum Size Solid
1/16″ ( 2.0 mm )
Maximum Dry Suction Lift
Rubber-fitted pump capability : 18-feet
Air Motors
Aluminum air motor is standard on metal pumps. Polypropilene air motor is standar on polypropylene and kynar® pumps.
Optional air motors: Polypropylene air motor for metal pumps; PTFE grey coating ( XP ) for aluminium motors.
Optional Split Manifold-contact Yamada
