Yamada® NDP-15 Series Double Diaphragm Pumps

Yamada® NDP-15 series Air Powered Double Diaphragm (AODD) pumps provide a maximum flow rate of 13.5 gallons per minute. Pumps are available in aluminum, stainless steel (316), Kynar® (PVDF), groundable acetal, and polypropylene construction, with a wide variety of diaphragm materials.

13.5 Gallons/Minute Max.
1/2″ NPT Fluid Port

Intake & Discharge Connections

Polypropylene (PPG) 1: 1/2″ Female NPT

Kynar® (PVDF) 2: 1/2″ Female NPT

Groundable Acetal 2: 1/2″ Female NPT

Aluminum (ADC-12) 3: 1/2″ Female NPT

Stainless Steel (316) 3: 1/2″ Female NPT

Air Inlet

1/4″ Female NPT (includes ball valve)

Air Exhaust

3/8″ Female NPT (includes silencer)

1 Polypropylene pumps may be fitted with ball or flat check valves. Ball-type check valves are recommended for flooded suction applications. Flat-type check valves are recommended for suction lift applications.

2 Kynar® and Groundable Acetal pumps are fitted with flat check valves only.

3 Aluminum and Stainless Steel pumps are fitted with ball check valves only.

Maximum Liquid Temperature4

Diaphragm Material / Temperature

Buna N: 180°F (82°C)

Neoprene: 180°F (82°C)

Santoprene® (TPO) 180°F (82°C)

EPDM: 212°F (100°C)

PTFE 212°F (100°C)

Hytrel® (TPE) 248°F (120°C)

Viton® fluoroelastomer 248°F (120°C)

4 Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material. Kynar® pumps have a maximum temperature of 248°F (120°C) when fitted with Hytrel® or Viton® diaphragms.

Air Supply Pressure (All Models)

20 to 100 PSI (1.4 to 7 kgf/cm²)

Discharge Volume Per Cycle

0.034 gallons (128 cc)

Maximum Cycles Per Minute

400

Maximum Size Solid

1/32″ (1.0 mm)

Maximum Dry Suction Lift

Flat-type check valve: 8-feet
Ball-type check valve: 5-feet

Air Motor

Ryton® air motor standard

Other Options

Split manifold pumps

Weight and Dimensions

Notes

Hytrel®-fitted pumps include Hytrel® check balls and Buna N wetted o‑rings. Santoprene®-fitted pumps include Santoprene® check balls and EPDM wetted o‑rings.