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FLOMAX® 30 | 3" Self Priming Pump

The FLOMAX® 30 is a heavy‑duty, self‑priming centrifugal pump engineered for demanding fluid‑handling applications across industrial, agricultural, marine and OEM environments. Designed for rapid priming, dependable suction lift performance and versatile installation options, it delivers the reliability and durability expected from MP Pumps' long‑standing engineering expertise. 

 

*The online store fulfills orders only within the USA.

Product Overview

The FLOMAX® 30 is built around a high‑efficiency self‑priming design capable of generating significant vacuum to lift liquids from elevations up to 25 ft (7.6 m), allowing the pump to operate effectively even when the fluid source is below pump level. Once the pump and suction line are primed, an integrated flapper valve traps a full column of liquid within the suction piping, ensuring smooth operation and uninterrupted flow cycles. 

The pump end is delivered as a pre‑assembled, performance‑tested PumPAK® unit that can be easily paired with multiple drive types, including electric motors from 182TC to 286TSC frame sizes, gasoline engines, or a bearing pedestal for belt‑drive or T‑frame motor configurations. This broad compatibility makes the FLOMAX® 30 adaptable to diverse installation requirements. 

Constructed from high‑quality materials such as bronze or cast iron, the pump features stainless steel fasteners and a stainless steel shaft sleeve for enhanced corrosion protection. A replaceable wear plate supports easier maintenance and long‑term efficiency retention. The dynamically balanced 6‑vane semi‑open impeller, with a diameter of up to 6.75" (171.45 mm), contributes to smooth hydraulic performance and reduced vibration. The pump is also ABS Type Approved, reinforcing its suitability for marine applications. 

Capable of delivering flows up to 500 GPM (113.6 m³/h) and heads up to 190 ft (58 m), the FLOMAX® 30 is powered by motors up to 25 HP (18.4 kW). Seal options include a standard carbon/ceramic/Viton configuration, with multiple special‑duty materials available upon request. The pump accommodates solids up to 0.60" (15.2 mm), further enhancing its versatility.

Features and Benefits

Key Features

  • Stainless steel drive sleeve for superior shaft protection. 
  • Stainless steel fasteners preventing corrosion and galling. 
  • Up to 25 ft (7.6 m) self‑priming suction lift capability.
  • ABS Type Approved for marine‑grade performance assurance. 
  • Semi‑open dynamically balanced impeller for stable and efficient operation. 
  • Material options including bronze and cast iron to match application requirements. 

Benefits

  • Reliable priming performance even in challenging suction conditions thanks to the integrated flapper valve.
  • Extended pump life through wear‑resistant components and corrosion‑resistant materials.
  • Simplified maintenance with easily replaceable wear parts.
  • Wide application range enabled by multiple drive options and frame compatibility.
  • High hydraulic efficiency delivering up to 500 GPM for demanding industrial workflows.
  • Marine‑ready certification, ensuring compliance and safe operation in offshore and onboard systems.

Specifications

 

Suction / Discharge 3" x 3" NPT 
Materials of Constructions Bronze, Cast iron 
Flow Up to 500 GPM (113.6 m3/h) 
Head Feet Up to 190' (58 m) 
Impeller 6.75" (171.45 mm) max diameter, 6-vane semi open 
Motor Up to 25 HP (18.4 kW) 
Seal Special seal material combinations available (consult factory), Standard cabon / ceramic / Viton 
Drive Options 

Close coupled 184TC 

Close coupled 215TC 

Close coupled 256TC 

Close coupled 284TSC 

Close coupled 286TSC 

Engine mount 25 HP (18.4 kW) 

Pedestal 

PumPAK® (without motor) 

Max Solid Size .60" (15.2 mm)