1/4 in. Legacy Plastic Pump A025-SQX

Air Inlet
  • 1/4" FNPT
Liquid Inlet
  • 1/4"
Liquid Discharge
  • 1/4"
Connection Type
  • FNPT/FBSPT (Threaded)
Max Suction Lift Capability
  • 17 ft-H2O (5.2 m-H2O) Dry
  • 26 ft-H2O (7.9 m-H2O) Wet
Max Flow Rate
  • 4.3 gpm (16.3 lpm)
Max Pressure
  • 100 psi (6.8 bar)
Max Diameter Solids
  • 1/16" (1.6 mm)
  • CE Icon
  • ATEX Icon


Physical Specifications
Liquid Port Size: 1/4 in.
Liquid Connection Size: FNPT (FBSPP)
Standard Suction Port: Left
Standard Discharge Port: Left
Air Inlet Connection Size: 1/4 in.
Air Exhaust Size: 1/4 in.
Conductive Nylon Weight: 14 lbs (6.4 kg)
Polypropylene Weight: 12 lbs (5.4 kg)
PVDF Weight: 14 lbs (6.4 kg)
Wet End: Conductive Nylon, Polypropylene, PVDF
Air End: Glass filled Polypropylene
Diaphragm: Geolast®, PTFE, Santoprene®
Valve: PTFE
Seat: Nylon, Polypropylene, PVDF
Hardware: Stainless Steel


Performance Curve


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

Max Flow: 4.3 gpm (16.3 lpm)
Max Air Pressure: 100 psi (6.8 bar)
Suction Lift (Dry): 17 ft-H2O (5 m-H2O)
Suction Lift (Wet): 26 ft-H2O (7.9 m-H2O)
Max Solids: 1/16 in. (1.6 mm)



Size: 1/4 in. | Code: ALF-13210-E-01

Performance Curves

Sizes: 1/4 in., 1/2 in., 1 in.


Exploded Views

Sizes: 1/4 in., 1/2 in., 1 in.

Dimensional Drawings

3D Models


All-Flo Products

Quality Built To Provide A Precise Performance

All-Flo pumps have been built to last and performance engineered to provide reliable operation and trouble-free service under the toughest conditions.

View Our Products

All-Flo Markets

All-Flo Solves Challenging Applications with Simple Solutions

All-Flo positive displacement air-operated double-diaphragm (AODD) pump solutions are the reliable and efficient choice for an array of industries and applications.

View Our Markets