A Look Inside

FTI AIR PUMPS ARE DESIGNED WITH CAREFUL ATTENTION TO APPLICATION REQUIREMENTS AND OPERATING CONDITIONS.

 

  1. Bolted Construction: Provides leak-free fluid handling.
  2. Air Valve: Sliding shoe design uses air through slotted diaphragm shaft to shift the valve, eliminating need for separate pilot valve or mechanically operated pilot valve.
  3. Liquid Chambers: Finite Element Analysis (FEA) designed for maximum strength.
  4. Manifolds: Single piece construction reduces chance of leak.
  5. Center Section: Features either glass-fiber reinforced polypropylene (GFRPP) or powder-coated aluminum center section to decrease pump weight while providing outstanding corrosion resistance.
  6. Diaphragm Shaft: Stainless steel shaft located in the center section connects both diaphragms and acts as the pilot valve.
  7. Diaphragms: Available in a wide variety of materials.
  8. Balls and Seats: Available in a wide range of materials for reliable operation.
  9. Connections: Depending upon the model, NPT or BSP threads or ANSI/ISO/DIN flanges.
  10. External Flanged Hardware: Eliminates washers to simplify maintenance and reduce total number of parts.
  11. Mounting Feet: Slotted feet with flat bottom for secure mounting.

1 - Bolted Construction

Leak-free fluid handling, bolt holes provide superior part alignment during maintenance

 

2 - Unique stall free air valve design

Simple, rugged and reliable lube free design

3 - Liquid Chambers

Finite Element Analysis (FEA) was used as part of the design process for maximum strength and mechanical integrity. Available in unfilled polypropylene, unfilled PVDF, 316 stainless steel and powder coated aluminum to handle the widest variety of applications.

4 - Manifolds

Single piece construction reduces chance of leakage. Computational Fluid Dynamics (CFD) optimized fluid path for optimum fluid velocities. Same material options as liquid chambers.

5 - Center Section

Plastic pumps feature glass-fiber reinforced polypropylene (GFRPP) center section construction to decrease pump weight while providing outstanding corrosion resistance. Metal pumps offer either powder coated aluminum or GFRPP center sections to reduce weight.

6 - Shaft Bushings and Diaphragm Shaft

Located in the center section the shaft bushings and diaphragm shaft are an integral part of the air control system. Bushing utilizes internal seals manufactured from a proprietary TPE material with low friction and high resiliency to provide incredibly long wear life. The stainless steel diaphragm shaft moves back and forth in the bushing over these special seals. Slots in the shaft pilot the air valve.

7 - Diaphragms

Precision manufactured diaphragms available in a variety of materials including neoprene, Buna-N, EPDM, FKM, Santoprene ™, Hytrel®, polyurethane and PTFE.

8 - Balls & Seats

Check valve balls and seats are available in a wide range of materials to provide reliable operation in a wide variety of applications.

9 - Connections

Depending upon the model, features NPT or BSP threads or universal ANSI 150/ISO-DIN PN40 flanges. 1 ½”, 2” and 3” stainless steel pumps have a 2-piece universal ANSI 150/ISO-DIN PN40 Vanstone flange option. Connection locations include end, center horizontal and center vertical.

10 - External flanged hardware

Eliminates washers simplifying maintenance and reduces the total number of parts. All fasteners are precision torqued using calibrated tools.

11 - Mounting Feet

Slotted feet with flat bottom surfaces allow for secure installation bolting.

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