Yamada NDP-15 Series
Tuesday, March 12, 20241/2" FLUID PORT
Yamada® NDP-15 series AODD pumps provide a maximum flow rate of 13.5 gallons per minute. Pumps are available in aluminum, stainless steel (316), Kynar® (PVDF), groundable acetal, and polypropylene construction, with a wide variety of diaphragm materials.
Our air valve technology separates Yamada from the rest of the pack. Yamada uses a non-lubricated main air valve and independent pilot mechanisms to control the air logic.
As compressed air enters the pump, it is directed via the main air valve to one side or the other, depending upon the starting position of the c-spool. As the air enters the chamber, it forces the diaphragm outward. This outward momentum forces liquid out of the discharge ball valve and loads the opposite inlet ball valve. As the diaphragm travels outward, the connected diaphragm on the opposite side pulls the diaphragm inward.
When it travels a full stroke, it will contact the pilot valve, depressing it and breaking the seal to open an exhaust port.
The open port allows the compressed air to the exhaust from the back side of the air valve. The pressure drop produces a shift of the main air valve. This motion simply repeats on the other side.
GENERAL PUMP INFORMATION
| 13.5 Gallons/Minute | |
| 1/2" NPT Fluid Port |
INTAKE & DISCHARGE CONNECTIONS
| Polypropylene (PPG)1 | 1/2" Female NPT |
| Kynar® (PVDF)2 | 1/2" Female NPT |
| Groundable Acetal2 | 1/2" Female NPT |
| Aluminum (ADC-12)3 | 1/2" Female NPT |
| Stainless Steel (316)3 | 1/2" Female NPT |
| Air Inlet | 1/4" Female NPT (includes ball valve) |
| Air Exhaust | 3/8" Female NPT Identified as EXH II (includes internal silencer)4 |
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1Polypropylene pumps may be fitted with ball or flat check valves. Ball-type check valves are recommended for flooded suction applications. Flat-type check valves are recommended for suction lift applications. 4 3/8" Female NPT Identified as EXH II (includes internal silencer) |
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DIAPHRAGM MAXIMUM LIQUID TEMPERATURE1
| 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) |
| 1Polypropylene and acetal 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 kgf/cm²) |
| Discharge Volume Per Cycle | 0.034 gallons (128 cc) |
| Maximum Cycles Per Minute | 400 |
| Maximum Size Solid | 1/32" (1mm) |
| Maximum Dry Suction Lift | Flat-type check valve: 8-feet Ball-type check valve: 5-feet |
| Air Motor | Ryton® air motor standard |
| Other Options | Split manifold pumps |
