Whether your pumps are functioning continuously or intermittently; at high or low pressure; using dirty or wet air; Yamada offers one field-proven design. This non-stalling, non-lubricated air valve concept is incorporated across Yamada's product line for all services.

Other Air-Powered Double Diaphragm pump manufacturers offer multiple air valve designs and revisions in an effort to address pump reliability problems. Multiple designs and revisions will typically create maintenance rebuild issues, parts, confusion, and obsolete inventory.

To simplify air valve maintenance, Yamada offers two common-size air valve assemblies within five sizes of NDP pumps (3/4 and 1-inch; 1-1/2, 2, and 3-inch fluid port sizes), reducing parts inventory and reassembly confusion. Yamada offers one proven concept across the product line that includes a patented non-centering, spring-assisted shifter, ensuring positive shifting and reliable starting operation every time.

Many of Yamada’s competitors claim to offer a non-lubricated air valve - does your experience agree? Dependent upon the competitor design, the air valve will require lubrication for continuous operation, or lubricator installation if moisture is present in the air system; these valves are "pre-packed" with grease at the factory and are NOT truly non-lubricated.

The patented NDP air valve technology only available from Yamada DOES NOT require external lubrication, pre-packing, or any other type of lube for that matter.

Component Replaceable Air Valve
Does your current pump incorporate a modular air valve, which requires a complete replacement of the valve assemble and housing, further increasing the cost of ownership? Yamada air valves may be restored using individual air valve components, without requiring complete valve replacement.

Bolted Construction vs. Clamp Band Construction
Clamp bands are Yamada’s competitors' answer to pump construction. Clamp band constructed pumps frequently require frustrating and unnecessary rebuilds due to leakage from misalignment during reassembly. All Yamada pumps utilize bolted, registered fit for reliability and leak-free operation throughout the duty cycle of the pump.

Call Superior Hose & Fittings today
and try a Yamada Air-Powered Pump.
Save Money …. Get the Job Done