Multiquip Centrifugal Pump QP4TH 4 Inch Suction Gas Water Trash Engine Unit 555 GPM Max Flow 2 Inch Solids Honda GX340 Dewatering Construction Utility

High Volume Gas Powered Dewatering with Tool Free Casing Cleanout Controls

The Multiquip QP4TH 4-Inch Gas Powered Trash Pump is a commercial-grade dewatering system engineered to manage high-velocity fluid transfers laden with large suspended solids up to 2 inches in diameter. Driven by a 10.7 HP Honda GX340 gasoline engine, this industrial utility unit delivers up to 555 GPM of fluid volume displacement while sustaining a 92-foot maximum head limit and a 25-foot suction lift capacity. The structural assembly incorporates an aluminum housing matched with a rugged cast-iron impeller and volute for high abrasion resistance, alongside a silicon-carbon mechanical shaft seal that withstands highly gritty water parameters. Designed for streamlined field maintenance, the architecture features a large tool-free quick-release clean-out cover and dual discharge ports to provide flexible hose routing configurations across complex construction environments.

Best Used For:

• Large Excavation Dewatering: Rapidly evacuating debris-filled groundwater, large stones, and slurry out of massive trenching lines and foundation sites.
• Retention Pond Siphoning: Transferring sediment-heavy surface water payloads from reservoirs, agricultural canals, or containment basins cleanly.
• Municipal Emergency Flood Mitigation: Addressing high-volume water accumulation from broken water mains or flash flooding events impacting public infrastructure.

Key Performance & Safety Features

• **Honda GX340 Commercial Engine:** Supplies 10.7 HP of robust mechanical torque with an automated low-oil sensor shutdown array that isolates the engine core from seizure hazards.
• **2-Inch Spherical Solid Pass:** Specially clear-cut interior passages permit stones, sticks, and sludge elements up to 2 inches in diameter to pass without choking the volute track.
• **Multi Port Discharge Manifold:** Built with versatile discharge ports to facilitate simultaneous or multi-directional drainage hose routing on the fly.
• **Tool Free Quick Access Cover:** Hand-turn release knobs enable direct access to the impeller chamber for fast cleaning run cycles without requiring separate hand tools.
• **Silicon Carbon Face Seals:** Advanced mechanical shaft seal faces preserve internal pressure seals when tracking through highly abrasive fluid mixtures.
• **Tubular Steel Frame:** Encased inside a structural roll cage chassis that safeguards the complete assembly from severe impacts while creating reliable tie-down attachment points.

What's Included

• (1) QP4TH 4-Inch Gas Powered Centrifugal Trash Pump Assembly

Technical Specifications

Pro-Tip: When tightening the quick-release clean-out casing cover knobs following a heavy solid purge run, ensure the front rubber seal ring is completely free of stone sediment or grit granules. Even a minor particulate imperfection across the face seal interface can cause vacuum drawing leakage, altering self-priming ratios and lowering suction lift capacity over continuous utility cycles.