DIAPHRAGM PUMP G25 YAMADA Global Series AODD pumps provide a maximum flow rate of 40.1 gallons per minute and are available in aluminum.
- Unified Air Valve Concept – 2 common size air valve assemblies used for 6 sizes of pumps reducing reassembly confusion and parts inventory
 - Truly No-Lubricated Air Valve – patented air valve on all NDP series pumps never requires lubrication or pre-packing
 - Non-Stalling – patented non-centering, 304SS spring-assisted shifter, ensuring a positive shift every time
 

SPECIFY AN AODD PUMP :
- Handles a wide variety of fluids with high solids content
 - Self Priming
 - Ability to Run Dry
 - Variable flow rate and discharge pressure
 - Portable
 - Simple Installation
 - Dead Head
 - Shear Sensitive
 - Safe Operation
 - Submersible
 - Pumping efficiency remains constant
 - Cannot Overheat
 - High Pressure capabilities
 - No mechanical seals, couplings or motors
 - No pressure relief or bypass needed
 
ADVANTAGES :
- 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. Outside accessible, making it easy to fix / inspect. - Unified Air Valve Concept
Common-size air valve assemblies reduce parts confusion and inventory. - Pilot Valve
Unique to the diaphragm pump Yamada design is an individual modular pilot valve that actuates the air valve. It is depressed slightly by the inner center disk creating a pressure drop at one end of the air valve, allowing shifting to occur. It is maintenance free with no cumbersome snap rings or lubricated dynamic o-rings to replace or repair. 
GENERAL PUMP INFORMATION DIAPHRAGM PUMP G25 YAMADA :
- 40.1 Gallons/Minute
1″ Fluid Port (NPT or ANSI Flange) - Intake and 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 temperature
- Buna N 180°F (82°C)
 - Neoprene 180°F (82°C)
 - Santoprene(TPO) 180°F (82°C)
 - EPDM 212°F (100°C)
 - PTFE 212°F (100°C)
 - Hytrel (TPE) 248°F (120°C)
 - Viton fluoroelastomer 248°F (120°C)
 - Ultimate 212°F (100°C)
 
 - Air Supply Pressure (All Models) : 20 to 100 PSI (1.4 to 7 kgf/cm²)
 - Discharge Volume Per Cycle :
- Rubber diaphragm: 0.158 gallons
 - PTFE diaphragm: 0.118 gallons
 
 - Maximum Cycles Per Minute
- Rubber diaphragm: 253
 - PTFE diaphragm: 297
 
 - Maximum Size Solid : 1/8″ (3 mm)
 - Maximum Dry Suction Lift : Rubber-fitted pump capability: 18-feet
 - Air Motor :
- Aluminum – Metal Pumps
 - Plastic – Plastic Pumps
 
 



