Hale’s Qmax single stage midship generates NFPA 1901 rated flows up to 2250 GPM (8515 LPM). The innovative one-piece body allows easier access to the impeller and mechanical seal, minimizes piping requirements and makes routine maintenance easier.


• Generates NFPA 1901 rated flows up to 2,250 GPM (8,515 LPM) from draft
• Performance range of 0 to 3000 GPM based on available engine power and water source.
• Large suction inlets and full flow waterways cut friction loss and deliver maximum pressure at the discharge valves. Low friction losses allow flows of up to 1,500 on 3-inch and 2,600 GPM on 4-inch pump body openings (from a positive water source)
• Designed to use 6” suction Master Intake Valves (MIV) which have no impact to single hose 1,500 GPM rating
• Dual cutwaters. Smooth water flow delivery to the cast pump body with no twists, turns or restrictions that add turbulence
• Strength in design. A one piece upper pump body minimizes potential piping leaks and makes maintenance and service easy
• Horizontally split body allows for easy pump rebuilds without removing the pump body and plumbing resulting in less downtime
• Hale auto-lube system force feeds lubrication system eliminating the need for second packing or seal arrangement
• Standard G gearbox is capable of handling 16,000 lb. feet of torque (Optional K gearbox capable of handling 18,500 lb. feet of torque)
• Also available with optional SmartCAFS


Maximum GPM2250
Minimum GPM1000
Discharge PortsStandard thirteen (13) 3" ports and three (3) 4" ports. Optional 4" LDH.
Suction PortsStandard eight (8) 3" ports with left and right steamer connections. Optional: Up to four (4) 6" ports & two 4" tank to pump ports.
PumpAlloy cast iron body
ImpellerMixed flow bronze impeller, accurately machined and individually balanced
TransmissionGears with sliding gear shift system
Ratios L, R & S Box: 1.58, 1.71, 1.86, 2.05, or 2.28 X Box 1.96, 2.13, 2.32, or 2.55
Weight (pounds)G Gearbox Pumps: 1275 lbs (options may change weight). K gearbox Pumps: 1375 lbs (options may change weight).
Shaft SealMaintenance-free, self adjusting mechanical seal or Packing (Packing only available with the G gearbox)
Pump ShaftHeat treated 17-4PH Stainless Steel
Gear BoxG gearbox capable of 16,000 pound-foot drive through torque or K gearbox capable of 18,500 pound-foot drive through torque
GearsHardened chrome nickel steel precision ground gears


File NameFile TypeCategory
Maintenance Kit BrochurePDFKits / Part Lists,Brochures and Sales Sheets
Midship Muscle Pump - Q Series - Manual - 029-0020-63-0-CPDFManuals
QMAX Pump PosterPDFTraining Materials
QMAX-K Installation Drawing - PL1159BPDFEngineering Drawings
QMAX Series Pump - PL887AFPDFEngineering Drawings
Gearbox Selection: K and G Gearbox ComparisonPDFBrochures and Sales Sheets,Correspondence
Qmax BrochurePDFBrochures and Sales Sheets
QMAX Pump Specifications - 2016PDFBid Specs
FSG-INS-00038 - Midship Pump Recommendation FormPDFTechnical Documents
2016 Pump BrochurePDFBrochures and Sales Sheets