YAMADA® DP-10/DP-15/G15 Diaphragm Pump Series

YAMADA® DP-10/DP-15/G15 Diaphragm Pumps:

DP-10 pumps are available in aluminum, stainless steel and polypropylene. DP-15 pumps are available in polypropylene and groundable acetal. G15 pumps are available in aluminum, stainless steel and pure polypropylene. A wide selection of diaphragm materials cover a variety of applications.

The NEW G15 series pumps utilize our new Step Spool (S-Spool).

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.