Yamada® NDP-50/500/G50 Double Diaphragm Pump Series

2" High-Performance Double Diaphragm Pump

Experience outstanding pumping performance with the Yamada® NDP-50/500/G50 Double Diaphragm Pump Series. Featuring a 2" fluid port, this robust pump is designed for high flow rates and versatile chemical compatibility, making it suitable for industries requiring precision and reliability.

Yamada offers a range of air-operated double diaphragm (AODD) pumps designed for various applications, with the NDP-500 series leading the way in performance. The NDP-500 series boasts a flow rate of 226 gallons per minute and is currently available in 316 stainless steel.

For applications requiring moderate flow rates, the NDP-50 series offers a maximum flow of 164 gallons per minute. This series provides greater material flexibility, with options including aluminum, 316 stainless steel, cast iron, Kynar® (PVDF), and polypropylene. 

The G50 global series rounds out the Yamada AODD pump offerings, providing a maximum flow rate of 193 gallons per minute and is currently available in aluminum construction. 


GENERAL PUMP INFORMATION:

2" Fluid Port (NPT or ANSI Flange)

 

NDP-500 Series: excess of 200 Gallons/Minute

NDP-50 Series: 164 Gallons/Minute

G50 Series: 193 Gallons/Minute

 

Intake & Discharge Connections:

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)

*NDP-500 only available in Stainless Steel.

 

Diaphragm Maximum Liquid Temperature:

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/W: Ultiimate 212°F (100°C)

*The maximum liquuid temperature for metal and Kynar® fitted pumps is determined by the elastomer (diaphragm material). Polypropylene pumps have a maximum liquid temperature of 180°F (82°C) regardless of diaphragm material. 

 

Air Supply Pressure (NDP-50)

20 to 100 PSI 

Air Supply Pressure (G50, NDP-500)

20 to 125 PSI 

Discharge Volume Per Cycle

Rubber diaphragm: 1.12 gallons (4.25 liters) (NDP-50)
PTFE diaphragm: 0.69 gallons (2.61 liters) (NDP-50)

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

Air Motor

Aluminum - Metal or Plastic Pumps
Plastic - Plastic Pumps

Optional Coating

PTFE-coated (NDP-50, NDP-500)

NDP-50, G50 & NDP-500 PUMP MODELS:

Model #

Description

852423

NDP-50BAC

852229

NDP-50BAN

852424

NDP-50BAE

852230

NDP-50BAH

852717

NDP-50BAS

852303

NDP-50BAV

852231

NDP-50BAT

852231-U

NDP-50BAU

852425

NDP-50BSC

852232

NDP-50BSN

852426

NDP-50BSE

852233

NDP-50BSH

852718

NDP-50BSS

852304

NDP-50BSV

852234

NDP-50BST

852234-U

NDP-50BSU

852647

NDP-50BSC-NPT

852643

NDP-50BSN-NPT

852648

NDP-50BSE-NPT

852644

NDP-50BSH-NPT

852721

NDP-50BSS-NPT

852646

NDP-50BSV-NPT

852645

NDP-50BST-NPT

852645-U

NDP-50BSU-NPT

852841

NDP-50BFC

852837

NDP-50BFN

852842

NDP-50BFE

852838

NDP-50BFH

852843

NDP-50BFS

852840

NDP-50BFV

852839

NDP-50BFT

852839-U

NDP-50BFU

852427

NDP-50BPC

852235

NDP-50BPN

852428

NDP-50BPE

852236

NDP-50BPH

852719

NDP-50BPS

852305

NDP-50BPV

852237

NDP-50BPT

852237-U

NDP-50BPU

854836

NDP-50BPC-PP

854837

NDP-50BPN-PP

854838

NDP-50BPE-PP

854841

NDP-50BPH-PP

854842

NDP-50BPS-PP

854839

NDP-50BPV-PP

854840

NDP-50BPT-PP

854840-U

NDP-50BPU-PP

852813

NDP-50BVE

852489

NDP-50BVH

852775

NDP-50BVS

852812

NDP-50BVV

852485

NDP-50BVT

852485-U

NDP-50BVU

854848

NDP-50BVE-PP

854851

NDP-50BVH-PP

854852

NDP-50BVS-PP

854849

NDP-50BVV-PP

854850

NDP-50BVT-PP

855331

G50AN11

855332

G50AT11

855333

G50AH11

855334

G50AS11

855389

NDP-500BSC

855390

NDP-500BSN

855391

NDP-500BSE

855392

NDP-500BSV

855393

NDP-500BST

855394

NDP-500BSH

855395

NDP-500BSS

855396

NDP-500BSW

855397

NDP-500BSC NPT

855398

NDP-500BSN NPT

855399

NDP-500BSE NPT

855400

NDP-500BSV NPT

855401

NDP-500BST NPT

855402

NDP-500BSH NPT

855403

NDP-500BSS NPT

855403

NDP-500BSW NPT

855396-PP

NDP-500BSS-PP

MATERIAL TYPES:

:: Aluminum (NDP-50)

Dimensions:

17.78" W x 30.70" H

Net Weight:

81.6 lbs. (37 kg)

Shipping Weight:

96.6 lbs.

:: Cast Iron (NDP-50)

Dimensions:

17.72" W x 30.56" H

Net Weight:

143 lbs. (65 kg)

Shipping Weight:

158 lbs.

:: Stainless Steel (NPT) (NDP-50)

Dimensions:

17.72" W x 30.56" H

Net Weight:

132 lbs. (60 kg)

Shipping Weight:

147 lbs.

:: Stainless Steel (ANSI flange) (NDP-50)

Dimensions:

17.72" W x 30.78" H

Net Weight:

132 lbs. (60 kg)

Shipping Weight:

147 lbs.

:: Polypropylene (ANSI flange) (NDP-50)

Dimensions:

18.30" W x 32.30" H

Net Weight:

77.2 lbs. (35 kg)

Shipping Weight:

92.2 lbs.

:: Polypropylene-PP (ANSI flange) (NDP-50)

Dimensions:

18.30" W x 32.30" H

Net Weight:

81.6 lbs. (37 kg)

Shipping Weight:

96.6 lbs.

:: Kynar (PVDF) (ANSI flange) (NDP-50)

Dimensions:

18.19" W x 32.24" H

Net Weight:

90.5 lbs. (41 kg)

Shipping Weight:

105.5 lbs.

:: Kynar-PP (ANSI flange) (NDP-50)

Dimensions:

18.18" W x 32.24" H

Net Weight:

94.8 lbs. (43 kg)

Shipping Weight:

109.8 lbs.

:: Aluminum (G50)

Dimensions:

16.4" L x 11.9" W x 23.11" H

Net Weight:

66 lbs.

Shipping Weight:

76 lbs.

:: Stainless Steel (NDP-500)

Dimensions:

16.7" L x 12.8" W x 29.1" H

Net Weight:

134 lbs.

Shipping Weight:

144 lbs.