1/4 in. Plastic Pumps A025

Air Inlet
  • 1/4" FNPT
Liquid Inlet
  • 1/4"
Liquid Discharge
  • 1/4"
Connection Type
  • FNPT/FBSPT (Threaded)
Max Suction Lift Capability
  • 14 ft-H2O (4.2 m-H2O) Dry
  • 28 ft-H2O (8.5 m-H2O) Wet
Max Flow Rate
  • 5.7 gpm (21.6 lpm)
Max Pressure
  • 120 psi (8.2 bar)
Max Diameter Solids
  • 1/16" (1.6 mm)
Displacement Per Stroke
  • 0.01 gal (0.04 L)
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Physical Specifications
Liquid Port Size: 1/4 in.
Liquid Connection Types: FNPT (FBSPT)
Standard Suction Port: Right
Standard Discharge Port: Right
Air Inlet Connection Size: 1/4 in. FNPT
Air Exhaust Connection Size: 1/4 in. FNPT
Polypropylene PVDF
Max Height: 6.8 in. (173 mm) 6.8 in. (173 mm)
Max Width: 7.3 in. (186 mm) 7.3 in. (186 mm)
Max Depth: 4.8 in. (123 mm) 4.8 in. (123 mm)
Weight: 2.6 lbs (1.2 kg) 3.8 lbs (1.7 kg)
Wet End: Polypropylene, PVDF
Air End: Polypropylene
Diaphragm: Geolast®, PTFE, Santoprene®
Balls: Geolast®, PTFE, Santoprene®
Seats: Polypropylene, PVDF
O-Rings: Buna-N, EPDM, PTFE, FKM
Hardware: PTFE Coated Stainless Steel, Stainless Steel
Muffler: Plastic


Performance Curve


Note: Additional performance curves can be found in the download section.

Max Flow: 5.7 gpm (21.6 lpm)
Max Air Pressure: 120 psi (8.2 bar)
Max Static Suction Head: 23 ft-H2O (7.0 m-H2O)
Max Suction Lift (Dry): 14 ft-H2O (4.2 m-H2O)
Max Suction Lift (Wet): 28 ft-H2O (8.5 m-H2O)
Max Solids: 1/16 in. (1.6 mm)
Avg. Displacement Per Stroke: (0.01 gal / 0.04 L)
Sound Level: 80 dBA (with Muffler)
A025-SPP-GGPN-S70 NPT(BSP), Geolast® Diaphragm, Geolast® Ball, Polypropylene Seat, Buna-N O-Ring, Stainless Steel Hardware
A025-SPP-SSPE-S70 NPT(BSP), Santoprene® Diaphragm, Santoprene® Ball, Polypropylene Seat, EPDM O-Ring, Stainless Steel Hardware
A025-SPP-TTPV-S70 NPT(BSP), PTFE Diaphragm, PTFE Ball, Polypropylene Seat, FKM O-Ring, Stainless Steel Hardware
A025-SPK-SSKE-S70 NPT(BSP), Santoprene® Diaphragm, Santnoprene® Ball, PVDF Seat, FKM O-Ring, Stainless Steel Hardware
A025-SPK-TTKV-S70 NPT(BSP), PTFE Diaphragm, PTFE Ball, PVDF Seat, FKM O-Ring, Stainless Steel Hardware



Size: 1/4 in. | Code: ALF-11010-E-02

Performance Curves

Spec Sheets

Dimensional Drawings

Size: 1/4 in.

3D Models

Size: 1/4 in.

Exploded Views


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