1 ½” /38 mm Metallic Air Operated Double Diaphragm Pump

FTI Air Model FT15Z pumps features a unique stall free air valve that is simple, rugged and reliable and requires no separate pilot valve or a mechanically operated pilot valve. Bolted construction provides leak-free fluid handling. Pumps are available with 316 stainless steel or aluminum wetted materials. Diaphragms, balls and seats are available in a wide range of materials to provide reliable operation in a wide variety of applications. FTI Air products have fewer parts, simpler design and are less prone to failure.

Suction & Discharge Size: 1.5” x 1.5”
Porting Location: Center Horizontal
Connection Types*: FNPT, BSPT
Air Inlet & Air Exhaust Size: 1/2” FNPT x ¾” FNPT
*Optional NPT or BSP threaded center port location in vertical position
Optional ANSI/DIN/ISO flange (SS only) or 2” tri-clamp connection upgrade
available upon request (SS only)


Maximum Flow Rate: 133 gpm (503 lpm)
Maximum Air Supply Pressure: 120 psi (8.3 bar)
Displacement Per Stroke: 0.24 gal (0.91 lit)
Minimum Air Inlet Pressure: 10 psig (0.7 bar)
Maximum Particle Size: 0.32” (8.2 mm)
Sound Pressure: 77 dB(A)
Operating Temperature: Determined by elastomers


Wetted Materials: 316SS or Aluminum
Diaphragm Materials: Neoprene, Santoprene™, FKM, EPDM, PTFE, Buna, Hytrel®, Polyurethane
Air Valve: GFRPP, Aluminum
Ball Materials: Neoprene, Buna, Santoprene™, FKM, EPDM, PTFE, 316SS
Seat Materials: Aluminum, 316SS, PTFE, Hytrel®, Buna, Neoprene, FKM, EPDM, Santoprene™, Polyurethane
O-ring Materials Neoprene, Buna, FKM, EPDM, PTFE, or FEP/FKM, Santoprene™, Polyurethane


Dimensions & Weights
316 Stainless Steel Aluminum
Maximum Height: 18-31/32” (482 mm) 17-1/2” (445 mm)
Maximum Width: 19-7/16” (494 mm) 19-7/16” (494 mm)
Maximum Depth: 11-13/32” (290 mm) 11-13/32” (290 mm)
Weight: 98 lb (44.5 kg) 52 lb (23.6 kg)

Please refer to manual below.

Manual Download


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