High Performance Air Operated Diaphragm Pumps
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High Performance Air Operated Diaphragm Pumps

Rugged, Bolted Construction All Yamada pumps feature bolted construction, which eliminates leaks and simplifies post-maintenance reassembly. Bolted construction is superior to clamp band retainers, which frequently require frustrating, unnecessary leakage rebuilds from misalignment during reassembly. Outside-Accessible Air Valve Inspection or maintenance of every Yamada air valve may be performed without removing the pump from service. Unified Air Valve Concept Common-size air valve assemblies reduce parts confusion. Pilot Valve Optimal Stroke Length Extensive research has led to the...

Yamada Patented Air Valve Technology ® Yamada air valve technology is the heart of the air-powered double diaphragm pump and determines reliability. Yamada holds three patents on its field proven valve and enjoys a superior reputation throughout the industry. Unified Air Valve Concept To simplify, Yamada offers two common size air valve assemblies within five sizes of pumps (3/4" & 1" pumps and 1-1­ 2", 2" & 3" pumps) further reducing / reassembly confusion and parts inventory. Other airpowered double diaphragm pump manufacturers offer multiple air valve designs and revisions in an effort...

Model Indicator Pump Body Out manifold Pump size (Port size) Pump Body Out chamber Center Body Check Valve Check valve Ball Type Size 5 & 15: PPS Size 10 20 to 80: Aluminum Aluminum Mechanical Switch (Size 40, 50 & 80) 5 Port s iz e 1/4" (5mm) 10 Port s iz e 3/8" (10mm) 15 Port s iz e 1/2" (15mm) 20 Port size 3/4" (20mm) 25 Port size 1" (25mm) 32 Intake port size 1-1/2" (40mm), Pump Body Material A S F P V D T Aluminum (ADC-12/AC4C-T6) Stainless Steel (SCS14/SUS316) Cast Iron (FC250/S45C) Polypropylene (PPG) Kynar® (PVDF) Groundable Acetal (POM) PTFE Diaphragm/Check Valve Material Pump Size...

Fair Guideline of Pump size and Flow rate Operation with the maximum cycle shorten the pump lifetime. To optimize pump performance and lifetime, please select pump in reference to this guideline. Recommended Flow Rate by Pump Size Using Performance Curves Specified Suction Lift Decrease of Rated Pump Flow (%) Decrease in Flow Rate as Suction Head Lift Rises * Select a pump with safety margin (1.5 times or higher) appropriate for the required conditions with taking effective use of a diaphragm and other expendables into consideration. * The performance curve shown on the right indicates the...

NDP-5 Series Specifications Port Size 1/4" (6A) Rc1/4" or NPT1/4" Intake Liquid Rc1/4" or NPT1/4" Discharge Rc1/4" or NPT1/4" includes ball valve Supply Air Rc3/8" or NPT3/8" w/ internal silencer* Exhaust Air Supply Pressure 0 .2 - 0 .7 MP a Maximum Discharge Pressure 0 .7 MP a *Silencer is internal type. Exhaust port has Rc3/8" or NPT3/8" thread. 11L/min Maximum Flow Rate 1/4 inch Port Size Discharge Volume Per Cycle Maximum Size Solid Metal Body Pumps Model Chart Body Material Aluminum （ADC 12） Stainless Steel Connection Liquid/Air Rc/Rc NPT/NPT Rc/Rc NPT/NPT Diaphragm Material

Body Materials Models Check Valve Valve Seat Valve Guide Center Disk *Material of the insert NDP-5FPT PTFE Flat Type PPG PPG PPG (SUS304*) PVDF PVDF PVDF (SUS304*)  Flat type check valve is not suitable for slurry handling  Maximum Dry Suction Lift is 1M Plastic Body Pumps Air supply pressure of Plastic Body Pumps is depending on the liquid temperature. Be sure to check the Liquid temperature – Pressure Correlation Chart. Model Chart Body Material Connection Liquid/Air Rc/Rc NPT/NPT Diaphragm Material Rc/Rc NPT/NPT Groundable Acetal Rc/Rc NPT/NPT * Purchaser shall not directly or...

20L/min Maximum Flow Rate 3/8 inch Port Size Port Size Intake Liquid Discharge Supply Air Exhaust Air Supply Pressure Maximum Discharge Pressure Discharge Volume Per Cycle Maximum Size Solid Metal Body Pumps Model Chart Body Material Aluminum （ADC12） Stainless Steel Connection Liquid/Air Neoprene (CR) Buna N (NBR) Rc/Rc NPT/NPT Rc/Rc NPT/NPT Diaphragm Material Hytrel® (TPEE) Hytrel® (TPEE) Santoprene® (TPO)

Body Materials Models Check Valve Valve Seat Valve Guide Center Disk * Material of the insert DP-10BS□ DP-10BPN DP-10BPC Same material as the diaphragm (PTFE for B H/T models) SUS316 NBR CR SUS316 PPG SUS316 PPG (SUS304*) PA (nylon) is used for the Valve Guide of DP-10BA□. Please be aware of corrosion resistant.  Maximum Dry Suction Lift is 1M Plastic Body Pumps Air supply pressure of Plastic Body Pumps is depending on the liquid temperature. Be sure to check the Liquid temperature – Pressure Correlation Chart. Model Chart Body Material Connection Liquid/Air Neoprene (CR) Buna N (NBR)...

50L/min Maximum Flow Rate 1/2 inch Port Size Specifications Port Size 1/2" (15A) Rc1/2" or NPT1/2" Intake Liquid Discharge Rc1/2" or NPT1/2" Rc1/4" or NPT1/4" includes ball valve Supply Air Rc3/8" or NPT3/8" w/ internal silencer* Exhaust Air Supply Pressure 0 .2 - 0 .7 MP a Maximum Discharge Pressure 0 .7 MP a *Silencer is internal type. Exhaust port has Rc3/8" or NPT3/8" thread. Discharge Volume Per Cycle Maximum Size Solid NDP-15 is fitted with the same sized diaphragm as DP-10 series. Please select NDP-20 series in case of the application exceeding20L/min of flow rate. Metal Body Pumps...

Body Materials NDP-15BA□ NDP-15BS□ Same material as the diaphragm Check Valve (PTFE for BAH/T model) Valve Seat A5056 SUS316 Valve Guide PA SUS316 Center Disk A5056 SUS316 * Material of the insert PTFE Flat type PPG PPG PPG(SUS304*) PVDF PVDF PVDF (SUS304*) NDP-15BP□ Same material as the diaphragm (PTFE for BPC and BPH) PPG PPG PPG(SUS304*) PA (nylon) is used for the Valve Guide of NDP-15BA□. Please be aware of corrosion resistant.  Flat type check valve is not suitable for slurry handling  Maximum Dry Suction Lift is 1M Plastic Body Pumps Air supply pressure of Plastic Body Pumps is...