Ultimate Diaphragm Pumps

Ultimate Diaphragm Pumps

The Ultimate in Diaphragm Pumps


Yamada® offers a unique unified PTFE diaphragm with a bonded rubber backer and an outer disk integrated into the diaphragm. This unique design is essential in challenging applications when no other diaphragm will perform and the ultimate PTFE diaphragm is required. 

 Port sizes available: 3/8", 1/2", 3/4", 1", 1-1/2", 2" & 3"


We can handle that!


  • No Center Hole Leak Path
  • Handles High Inlet Pressure
  • Ability to Run Dry
  • Smooth Design for Easy Flushing / Clean Up
  • Long Service Life
  • Abrasion Resistant Design
  • Easy Assembly & Repair
  • Reinforced Fabric


  • Non-Stalling Air Valve
  • No Lubrication Air Valve
  • Leak-Free Bolted Construction


  • Sanitary
  • FDA Compliant


Retrofit & Upgrade your current pump! 




Fluid Port Sizes 3/8", 1/2", 3/4", 1", 1-1/2", 2" & 3"
Flow Rate 6 - 160 GPM
Air Supply Pressure 20 - 100 PSI
Air Inlet 1/4", 3/8", 1/2" & 3/4"
Air Exhaust 3/8", 3/4" & 1"
Temperature -70°F - 212°F
Max. Size Solid 1/32 - 13/32"
Construction Material    Aluminum, Stainless Steel, Cast Iron, Polypropylene & Kynar®
Diaphragm Material Elastomer, Fabric, PTFE, Metal
Compliance FDA

Temperature limits are application specific. Please contact the factory for further information.

For liquid data and diaphragm specifications, use corresponding DP/NDP series pump data.

DP-10 Specifications
3/8" Fluid Port
See DP-10 Data Sheet

NDP-15 Specifications
1/2" Fluid Port
See NDP-15 Data Sheet

NDP-20 Specifications
3/4" Fluid Port
See NDP-20 Data sheet

NDP-25 Specifications
1" Fluid Port
See NDP-25 Data Sheet

NDP-40 Specifications
1-1/2" Fluid Port
See NDP-40 Data Sheet

NDP-50 Specifications
2" Fluid Port
See NDP-50 Data Sheet

NDP-80 Specifications
3" Fluid Port
See NDP-80 Data Sheet



Model # Description
851843-U DP-10BPU
851839-U DP-10BAU
851840-U DP-10BSU
853719-U DP-15FPU
853720-U DP-15BPU
851961-U NDP-15BSU
852349-U NDP-15BPU
851699-U NDP-15FPU
851949-U NDP-15BAU
852103-U NDP-15FVU
854098-U NDP-20BPU-PP
854112-U NDP-20BPU-PP-FLG
855227-U NDP-20BAU
854063-U NDP-20BAU-PP
855228 NDP-20BSU
854077-U NDP-20BSU-PP
855252 NDP-25BPU-PP
855254 NDP-25BPU-PP-FLG
855256 NDP-25BVU-PN
855258 NDP-25BVU-PN-FLG
855229 NDP-25BAU
854126-U NDP-25BAU-PP
855230 NDP-25BSU
854140-U NDP-25BSU-PP
851536-U NDP-25BFU
852228-U NDP-40BPU
853797-U NDP-40BVU
852222-U NDP-40BAU
852225-U NDP-40BSU FLG
852639-U NDP-40BSU NPT
852871-U NDP-40BFU
852237-U NDP-50BPU
854840-U NDP-50BPU-PP
852485-U NDP-50BVU
854850-U NDP-50BVU-PP
852231-U NDP-50BAU
852234-U NDP-50BSU FLG
852645-U NDP-50BSU NPT
852839-U NDP-50BFU
852246-U NDP-80BPU
852240-U NDP-80BAU
852243-U NDP-80BSU FLG
852651-U NDP-80BSU NPT
852857-U NDP-80BFU



  • Aluminum
  • Stainless Steel
  • Cast Iron
  • Polypropylene
  • Kynar®

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