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955 East Algonquin Road Dept. I
Arlington Heights, Illinois-60005, United States+(1)-800-9907867
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Ndp-50 Series Pumps

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Port Dimensions

Intake & Discharge Connection

Polypropylene (PPG): 2" ANSI Flange B16.5 #150

Kynar® (PVDF): 2" ANSI Flange B16.5 #150

Aluminum (ADC-12): 2" ANSI Flange B16.5 #150 (with tapped 2" Female NPT)

Stainless Steel (316): 2" ANSI Flange B16.5 #150 or 2" Female NPT

Cast Iron: 2" Female NPT

Air Inlet

3/4" Female NPT (includes ball valve)

Air Exhaust

1" 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: 1.14 gallons (4.3 liters)

PTFE diaphragm: 0.55 gallons (2.1 liters)

Maximum Cycles Per Minute

Rubber diaphragm: 146

PTFE diaphragm: 220

Maximum Size Solid

5/16" (8 mm)

Maximum Dry Suction Lift

Rubber-fitted pump capability: 19-feet


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