Specifications for NDP-40
Series Pumps

116 GPM  ::  1-1/2" Port Size

Click link to download printable PDF for:

NDP-40 Specs, Curves, Drawings (915K)

Bill of Materials

Maintenance Manual (2.7MB)

Port Dimensions

Intake & Discharge Connection

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)

Maximum Liquid Temperature*

Diaphragm Material / Temperature

Neoprene: 180°F (82°C)

Buna N: 180°F (82°C)

EPDM: 212°F (100°C)

Hytrel® (TPE) 248°F (120°C)

Santoprene® (TPO) 212°F (100°C)

Viton® fluoroelastomer 248°F (120°C)

Teflon® (PTFE) 212°F (100°C)

*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

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: Epoxy-coated, Teflon®-coated, or Electroless Nickel Plate

Notes: Hytrel®-fitted pumps include Buna N check balls & wetted o-rings. Santoprene®-fitted pumps include EPDM check balls & wetted o-rings.