1-1/2″ Intake Fluid Port
1-1/4″ Discharge Fluid Port
Simplify Your Pump Replacement With a Yamada!
Have you ever wanted to switch out your old pump for a Yamada®, but faced re-piping issues? With the NDP-32 Pump from Yamada, your problems are solved. This 1-1/2” inlet port x 1-1/4” outlet port matches up dimensionally with old competing brand’s designs. Now your conversion to Yamada is just a little bit easier.
Yamada® NDP-32 series AODD pumps provide a maximum flow rate of 50.2 gallons per minute. Pumps are available in aluminum construction.
What separates Yamada from the rest of the pack is our air valve technology. Yamada uses a completely 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 is pulling 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.
Literature & Drawings
GENERAL PUMP INFORMATION
| 50.2 Gallons/Minute | |
| 1-1/2″ Fluid Intake Port(NPT) |
Intake & Discharge Connections
| Aluminum (PPG) |
1-1/2″ Fluid Intake Port, 1-1/4″ Fluid Discharge Port (NPT) |
| Air Inlet | 3/8″ Female NPT (includes ball valve) |
| Air Exhaust | 3/4″ Female NPT (includes silencer) |
Maximum Liquid Temperature1
| N: Buna N 180°F (82°C) |
| S: Santoprene®(TPO) 180°F (82°C) |
| T: PTFE 212°F (100°C) |
| *The maximum liquid temperature for metal pumps is determined by the elastomer (diaphragm material). |
| Air Supply Pressure (All Models) | 20 to 100 PSI (1.4 to 7 kgf/cm²) |
| Discharge Volume Per Cycle | Rubber diaphragm: 0.176 gallons
PTFE diaphragm: 0.147 gallons |
| Maximum Cycles Per Minute | Rubber diaphragm: 285
PTFE diaphragm: 296 |
| Maximum Size Solid | 1/8″ (3 mm) |
| Air Motor | Standard: Aluminum |
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