PTFE Double Diaphragm Pumps

PTFE Double Diaphragm Pumps


Important features you'll find in Yamada F-Series PTFE pumps: 

Truly Non-Lubricated Air Valve

The patented air valve on all Yamada F-Series pumps never requires lubrication or pre-packing. Plus, it is easily accessible without disassembling the pumps.

Wetted Parts

To ensure maximum corrosion resistance, purity levels and low particle generatation, Yamada pumps feature diaphragms, liquid chambers and manifolds that are machined from 100% virgin PTFE. 
Polypropylene and High Density Polyethylene are used in the air motor section (non-wetted) to ensure resistance in a corrosive environment.

Extended Performance Diaphragms

All Yamada F-Series diaphragms are manufactured from 100% virgin PTFE. As a result, these diaphragms will last up to twice as long as those found in many competitve pumps. In addition, incorporating minimal shaft travel reduces pump pulsation.

Clean Room Manufactured

Yamada F-Series pumps are manufactured, DI water tested, nitrogen purged, and double bagged under class 1000 clean room conditions according to stringent quality control standards and procedures. 

Most Complete Line Available

Yamada offers five sizes of F-Series pumps for your applications with adjustable flow rates up to a maximum of 35 gallons per minute.

Yamada is proud to offer the largest line of field-proven, high purity air-operated double diaphragm pumps.

End-User Maintenance

Yamada F-Series pumps are easily end-user maintainable and are backed with readily availalbe service and parts worldwide. 

Explosion-Proof Operation

Air operation eliminates a potential source of ignition, so thee's no need to take additional preventative measures when pumping volatile or flammable liquids, or when using the pump in potentially hazardous environments.


Yamada warrants all pumps for one year from date of installation.

For more information: HIGH-PURITY PUMPS


The Yamada Advantage

Yamada Air Powered Double Diaphragm Pumps: Engineered for High Performance. Manufactured for Long Life.

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 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.

Patented Air Valve Technology

Incorporated in every Yamada Air Powered Double Diaphragm pump

Yamada air valve technology is the heart of the air-powered double diaphragm pump and determines reliability. Yamada holds three patents on its field proven valve and enjoys a superior reputation throughout the industry.

Why 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

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