15 GPM -- 1/2" Port Size

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NDP-15 Specs, Curves, Drawings (294K)

Bill of Materials

Maintenance Manual (1.05MB)

Port Dimensions

Intake & Discharge Connection

Polypropylene (PPG)* 1/2" Female NPT

Kynar® (PVDF)** 1/2" Female NPT

Groundable Acetal** 1/2" Female NPT

Aluminum (ADC-12)*** 1/2" Female NPT

Stainless Steel (316)*** 1/2" Female NPT

*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.

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

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

Air Inlet

1/4" Female NPT (includes ball valve)

Air Exhaust

3/8" 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) 225°F (107°C)

Viton® fluoroelastomer 248°F (120°C)

Teflon® (PTFE) 212°F (100°C)

****Polypropylene and Acetal 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

Flat-type check valve: 0.0375 gallons (138 cc)

Ball-type check valve: 0.031 gallons (119 cc)

Maximum Cycles Per Minute

All diaphragms: 400

Maximum Size Solid

1/32" (1 mm)

Maximum Dry Suction Lift

Flat-type check valve: 8-feet

Ball-type check valve: 5-feet

Air Motor

Ryton air motor standard

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