Graco Triton 3:1 350 series: EnduraFlo 4D350

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The Endura-Flo 4D350 ensures long-lasting durability and can withstand runaway conditions better than other diaphragm pumps. This easy-to-install pump offers low pulsation output and smooth changeover for quick color changes, saving you time and money. 

  • 350 cc per cycle 
  • Highest pressure ratio in the industry at 4:1
  • Redesigned diaphragm lasts longer and can hold up to extreme operating conditions better
  • Easy access to critical components provides fast online maintenance
  • Superior durability for abrasive materials
  • Innovative design ensures easy access to critical components for fast, online repair
  • Minimal solvent to flush and consistent startup pressure make it perfect for multiple color change and piggable systems
  • DataTrak option prevents runaway and tracks material usage
  • Pumps are easily configurable for custom installations

Endura-Flo 4D150 Diaphragm Pump

Maximum air input pressure

100 psi

Maximum fluid working pressure

400 psi

Maximum static fluid pressure

430 psi



Maximum recommended continuous cycle rate

20 cycles per minute

Volume per cycle (double stroke)

5 oz per cycle

Ambient and operating temperature range. Use dry compressed air when operating at low temperatures.

32 to 122°F

Dry suction lift

23 ft

Wet suction lift

29 ft

Air inlet size

1/4 npt

Fluid inlet size

1 in. Tri-Clamp Flange, 1/2 in npt, or 1/2 in bspp

Fluid outlet size

1 in. Tri-Clamp Flange, 1/2 in npt, or 1/2 in. bspp

Weight (approximate)

31 lb

Wetted parts

stainless steel, perfluoroelastomer (FFKM), PTFE, Polyphenylene Sulfide (PPS)

Average Sound Pressure Levels in dBA at 20 cpm [measured at 1 meter (3.28 ft) horizontal, 1.5 meter (4.9 ft) above the equipment]

At 70 psi (0.5 MPa, 5.0 bar)

62.3 dBA

At 100 psi (0.7 MPa, 7.0 bar)

62.9 dBA

Sound Power measured per ISO 9614–2.

At 70 psi (0.5 MPa, 5.0 bar)

70.8 dBA

At 100 psi (0.7 MPa, 7.0 bar)

71.6 dBA