Yamada Pump NDP-25BSE-FDA

The Yamada NDP-25BSE-FDA is a premium sanitary air operated diaphragm pump designed for hygienic fluid processing across the food, beverage, pharmaceutical, and cosmetics industries. Featuring a precision-cast 316 stainless steel housing fitted with FDA-grade EPDM diaphragms, check balls, and o-rings, this 1-inch AODD unit delivers smooth, reliable flow rates up to 46.2 GPM (174.8 L/min) while ensuring strict compliance with sanitary standards.

Equipped with Yamada’s patented non-lubricated C-spool air motor, this Yamada AODD pump delivers stall-free, freeze-resistant operation with zero risk of oil misting into your cleanroom or processing floor. Its leak-resistant bolted construction and smooth 316SS fluid passages resist bacterial buildup and allow for fast, easy maintenance—making it an exceptional choice for handling hot water, CIP solutions, alcohols, organic acids, and food-grade ingredients.

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-46.2 Gallons/Minute (NDP-25)

-40.1 Gallons/Minute (G25)

1" Fluid Port (NPT or ANSI Flange)

Intake & Discharge Connections

• Polypropylene (PPG): 1" Female NPT or 1" ANSI Flange B16.5 #150
• Kynar®(PVDF): 1" Female NPT or 1" ANSI Flange B16.5 #150
• Aluminum (ADC-12): 1" Female NPT
• Stainless Steel: 1" Female NPT
• Cast Iron: 1" Female NPT
• Air Inlet: 3/8" Female NPT (includes ball valve)
• Air Exhaust: 3/4" Female NPT (includes silencer)
  
  

Diaphragm Maximum Liquid Temperature1

N: Buna N 180°F (82°C)
C: Neoprene 180°F (82°C)
S: Santoprene®(TPO) 180°F (82°C)
E: EPDM 212°F (100°C)
T: PTFE 212°F (100°C)
H: Hytrel®(TPE) 248°F (120°C)
V: Viton®fluoroelastomer 248°F (120°C)
U: Ultimate 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: 0.23 gallons (862 cc) (NDP) | 0.158 gallons (G25)
PTFE diaphragm: 0.17 gallons (654 cc) (NDP) | 0.118 gallons (G25)

Maximum Cycles Per Minute
Rubber diaphragm: 210 (NDP) 253 (G25)
PTFE diaphragm: 210 (NDP) 297 (G25)

Maximum Size Solid1/8" (3 mm) 
Maximum Dry Suction Lift: Rubber-fitted pump capability: 18-feet
Air Motor: Aluminum - Metal PumpsPlastic - Plastic PumpsOptional CoatingPTFE-coated (NDP)

Yamada Air-Operated Double Diaphragm Pumps

Engineered for High Performance. Manufactured to Last.

• Leak-Free Bolted Construction: Built for heavy-duty reliability, Yamada’s bolted design ensures precise alignment and effortless reassembly—eliminating the leaks and tedious rebuilds common with clamp-band retainers.
• Externally Accessible Air Valve: Perform quick inspections or routine maintenance directly in-line, without taking the pump out of service.
• Unified Valve Architecture: Standardized air valve assemblies across pump models reduce part confusion and lower inventory overhead.
• Maintenance-Free Pilot Valve: Yamada’s unique modular pilot valve uses an inner center-disk mechanism to trigger valve shifting with zero hassle. Free of dynamic O-rings or awkward snap rings, it requires no routine repairs.

Order by 2PM to get delivered next working day! (Available with NDA shipping Charges on In-stock items) We use 24 hours service with carriers in most cases so that you can get your order delivered on time.

Call (225)-454-0860 to confirm shipping cost and delivery time.