Yamada® NDP-40 Series Double Diaphragm Pumps

Intake & Discharge Connections:

Polypropylene (PPG): 1-1/2" ANSI Flange B16.5 #150
Kynar® (PVDF): 1-1/2" ANSI Flange B16.5 #150
Aluminum (ADC-12): 1-1/2" ANSI Flange B16.5 #150 (with tapped 1-1/2" Female NPT)
Stainless Steel (316): 1-1/2" ANSI Flange B16.5 #150 or 1-1/2" Female NPT
Cast Iron: 1-1/2" Female NPT

Air Inlet:

1/2" Female NPT (includes ball valve)

Air Exhaust:

3/4" Female NPT (includes silencer)

Air Supply Pressure (All Models) :

20 to 100 PSI (1.4 to 7 kgf/cm²)

Discharge Volume Per Cycle:

Rubber diaphragm: 0.79 gallons (3.0 liters) PTFE diaphragm: 0.37 gallons (1.4 liters)

Maximum Cycles Per Minute:

Rubber diaphragm: 148
PTFE diaphragm: 270

Maximum Size Solid:

9/32" (7 mm)

Maximum Dry Suction Lift:

Rubber-fitted pump capability: 18-feet

Air Motor:

Standard: Aluminum

Optional Coating:

PTFE-coated

Notes:

All Polypropylene, Aluminum, Cast Iron, and SS 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. Kynar® (PVDF) pumps fitted with Santoprene®, Hytrel®, or PTFE include PTFE check balls and o‑rings. Kynar®/EPDM fitted pumps include EPDM check balls and o‑rings. Viton® fitted pumps include Viton® check balls and o‑rings.