HCP GD-400 Heavy Duty 2" Submersible Dewatering Pump – 1/2 HP, 120V, 64 GPM

Product Description

Heavy-Duty Submersible Pump for Construction Site Dewatering and Storm Water Management

The HCP GD-400 is a commercial-grade, portable water removal pump used for construction site dewatering, storm water management, and pumping from 8-inch wells. Its lightweight aluminum motor frame and 0.5 HP motor provide a durable yet portable solution for demanding applications. This efficient

HCP Pump is part of a broad range of professional

submersible dewatering pumps

from Taiwan's most successful submersible pump manufacturer.

Key Benefits of the Heavy-Duty Dewatering Pump

Achieves rapid dewatering with a flow rate of up to 64 GPM.

Handles liquids with suspended solids up to 1/4" to prevent clogs in tough conditions.

Ensures extended operational life with a dual mechanical seal system in an oil-filled chamber.

Prevents motor damage during heavy use with an integrated auto-cut thermal protector.

Adapts to job site requirements with a convertible vertical or horizontal discharge connection.

Operates effectively in confined spaces like 8-inch wells and shallow water areas.

Provides wear resistance in construction applications with a durable urethane rubber impeller.

HCP GD-400 Submersible Pump Specifications

Category

Details

Model

GD-400

Motor Power

0.5 HP (0.4 kW)

Voltage

115V AC, Single Phase, 60 Hz

Amperage

5.8 A

Discharge Port

2" (50 mm) MPT

Max Flow Rate

64 GPM (243 LPM)

Max Head

39 ft (11.88 m)

Max Solids Handling

1/4 in (7 mm)

Impeller Type

Vortex, Urethane Rubber

Construction

Aluminum Motor Frame (ADC12), Synthetic Rubber Casing

Seals

Dual Mechanical Seals (Carbon/Ceramic & Silicon Carbide/Silicon Carbide)

Cable Length

30 ft (9.1 m) with 120V three-prong plug

Dimensions (H x Dia.)

12 in x 7.5 in (305 mm x 190 mm)

Operating Weight

27 lbs (12.2 kg)

Certifications

cUL and UL

What’s Included

HCP GD-400 Submersible Pump

30-ft Power Cable with 120V three-prong molded plug

Convertible Discharge Outlet

Available Packages

Pump Only

Pump w/ 50-Ft Layflat Discharge Hose

Pump w/ 50-Ft Layflat Discharge Hose + Float Switch

Pump w/ 100-Ft Layflat Discharge Hose + Float Switch

Key Features of HCP GD-400

Adjustable Discharge Connection

The exchangeable outlet allows for vertical or horizontal discharge, providing flexibility for installations in trenches, wells, or on flat surfaces without kinking the hose.

Urethane Rubber Impeller

The vortex impeller is made from wear-resistant urethane rubber, making this heavy-duty construction pump suitable for abrasive dewatering applications found on job sites.

Auto-Cut Thermal Protector

This built-in safety feature automatically shuts down the motor in case of overheating, preventing damage and increasing the pump's lifespan.

Dual Mechanical Seal System

A carbon/ceramic upper seal and a silicon carbide lower seal run in an oil-filled chamber, providing superior protection against water ingress for long-term reliability.

Lightweight and Portable

With an aluminum motor frame and an operating weight of only 27 lbs, this 1/2 HP dewatering pump is easy to transport and position for portable water removal.

Performance Overview

This 120V submersible drainage pump is designed for continuous duty operation within its specified temperature limits (32°F to 104°F). Its performance curve shows a strong balance between flow and lift, making it effective for moving water over moderate distances and heights common in drainage applications.

Applications

Construction site dewatering

Civil engineering and groundworks

Dewatering of fluids containing solids

Stormwater sewers and basin dewatering

Tunneling projects

Portable use for contractors and service industries

Installation and Usage Guidelines

This pump is for submersible use only. The motor is water-cooled and should not be run dry.

The standard model provides manual operation. For automatic on/off control, pair the pump with an external piggyback float switch.

Ensure the pump is installed on a stable surface to prevent it from tipping or sinking into soft ground.

The maximum installation depth is 33 feet (10 meters).

Can be used for pumping water with temperatures up to 104°F (40°C).

Accessories & Add-Ons

Complete your HCP GD-400 setup with these essential accessories:

2" Layflat Discharge Hose:

Ideal for efficient water discharge.

Type A Aluminum Camlock Fitting:

Ensures quick and secure connections.

Piggyback Float Switch:

Enables automatic pump operation for convenience.

For higher-capacity dewatering, check out the

HCP GD-750,

offering greater flow and performance.

Professional-Grade Pumping Solutions from Cleanflow

Cleanflow provides a full range of HCP pumps, delivering durable, high-performance equipment to contractors and industrial operators across Canada and the USA. We help you find the right pump for your needs, supported by expert advice and reliable availability. The HCP GD-400 Submersible Pump is a top choice for professionals seeking dependable performance.

Frequently Asked Questions

What is the flow rate of the HCP GD-400?

The HCP GD-400 delivers a maximum flow rate of 64 gallons per minute (GPM), or 243 liters per minute (LPM). Actual flow varies depending on total lift height and discharge conditions.

Can the HCP GD-400 fit in narrow wells?

Yes. With a pump diameter of approximately 7.5 inches, the GD-400 is well suited for confined installations, including narrow 8-inch wells.

How do you change the discharge direction on the GD-400 pump?

The GD-400 includes an exchangeable discharge connection. The outlet can be unthreaded and repositioned to either a vertical or horizontal orientation to suit site conditions and prevent hose kinking.

Is the HCP GD-400 suitable for pumping water with solids?

Yes. The GD-400 is designed to handle suspended solids up to 1/4 inch (7 mm), making it appropriate for construction site dewatering and other demanding drainage applications.