Diaphragm Pumps Ltd

Yamada NDP-80 Series Pumps

214 USGPM Maximum Capacity / 3" Port Size

Port Dimensions

Intake & Discharge Connection

• Polypropylene (PPG) 3" ANSI B16.5 #150
• Aluminum (ADC-12) 3" ANSI B16.5 #150 (with tapped 3" Female NPT)
• Stainless Steel (316) 3" ANSI B16.5 #150 or 3" Female NPT
• Hastelloy 3" ANSI B16.5 #150 or 3" Female NPT
• Cast Iron 3" 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: 248°F (120°C)
• Santoprene: 225°F (107°C)
• Viton: 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.

Air Supply Pressure (All Models)

• 20 to 100 PSI (1.4 to 7 kfg/cm)

Discharge Volume Per Cycle

• Rubber diaphragm: 2.25 gallons (8.5 liters)
• PTFE diaphragm: 1.0 gallons (3.8 liters)

Maximum Cycles Per Minute

• Rubber diaphragm: 95
• PTFE diaphragm: 160

Maximum Size Solid

• 13/32" (10 mm)

Maximum Dry Suction Lift

• Rubber-fitted pump capability: 19-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.

Click Here for the NDP80 Maintenance Manual