  
Tuthill Kinney Rotary Piston KD & KDH 
 
Tuthill Kinney Model KD30, KD50, KDH130, KDH150 
KD and KDH Single-Stage Duplex Rotary Piston Pumps 
 
Features 
• Absolute pressures down to the low micron range 
• Belt-driven, low-speed rotary piston pumps 
• No small orifices to plug up 
• Rugged and reliable 
• No metal-to-metal contact between pump piston & cylinder 
  - clearances are filled with oil 
• Adjustable gas ballast permits handling of condensible vapors 
 
KD pumps are air-cooled. 
KDH pumps are water-cooled. 
 
Tuthill stands by its 100+ years of quality and durability in vacuum pump technology by offering the longest rotary piston pump warranty in the industry - 30 months! 
 
Applications:    Drying Chambers, Filling Machinery, Evacuation of Process Chambers, Degasifiers 
Specification Sheets 
KD KDH.pdf 
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