FTI Air, a division of Finish Thompson, Inc.

FTI AirModel FT20 -2”/51 mm Non-Metallic Air Operated Double Diaphragm Pump

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The FTI Air Model FT20 is a meticulously engineered 2”/51 mm non-metallic air-operated double diaphragm pump equipped with an innovative stall-free air valve design. This feature eliminates the need for separate or mechanically operated pilot valves, enhancing reliability and simplifying maintenance. Constructed with bolted assembly, these pumps ensure leak-free fluid transfer, accommodating a variety of industrial fluids. Available with durable polypropylene or PVDF wetted parts, they offer versatile compatibility with diverse chemical substances. The pumps’ diaphragms, balls, and seats are customizable in multiple materials, making them suitable for numerous applications. The FT20 model is distinguished by its simplicity, reduced component count, and robust operational reliability, making it less susceptible to mechanical failure, which ensures optimal performance in demanding environments.
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Specifications

  • Suction & Discharge Size: 2” x 2”
  • Porting Location: End
  • Connection Types: ANSI/DIN/ISO flange
  • Air Inlet & Air Exhaust Size: ¾” FNPT x ¾” FNPT

 

Capabilities

  • Maximum Flow Rate: 154 gpm (583 lpm)
  • Maximum Air Supply Pressure: 100 psi (6.9 bar)
  • Displacement Per Stroke: 0.31 gal (1.2 lit)
  • Minimum Air Inlet Pressure: 10 psig (0.7 bar)
  • Maximum Particle Size: 0.35” (8.9 mm)
  • Sound Pressure: 77 dB(A)
  • Operating Temperature: Determined by elastomers

 

Construction

  • Wetted Materials: Polypropylene, PVDF
  • Diaphragm Materials: Neoprene, Santoprene™, FKM, EPDM, PTFE, Buna, Hytrel®, polyurethane
  • Air Valve: GFRPP, Aluminum
  • Ball Materials: Neoprene, Santoprene™, FKM, EPDM, PTFE, Buna
  • Seat Materials: Polypropylene, PVDF
  • O-ring Materials Buna, FKM, Santoprene™, polyurethane, FEP/FKM

 

Dimensions & Weights

  • Maximum Height: 31-11/16” (805 mm)
  • Maximum Width: 23-19/32” (600 mm)
  • Maximum Depth: 12-27/32” (326 mm)
  • Weight – Polypropylene: 67.0 lb (30.4 kg)
  • Weight – PVDF: 97.5 lb (44.2 kg)
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