COMPANY HEADER
Print Back
The GST Sub-Prime® line is a selection of portable, electric submersible pumps designed for trash-laden applications. Standard side discharge and semi-vortex cast iron impeller enable these units to handle solids up to 1 in. (25 mm) in diameter. The fully removable volute makes clean-out fast and easy. The GST Sub-Prime® line offers flow rates to 75 gpm (4.75 l/sec) and maximum heads to 48 feet (14.6 m). Units are available in 0.5 hp / 0.4 kW (GST05) model. High-performance and affordability combine to make the GST Sub-Prime® pump ideal for use in general dewatering applications, as well. For automatic starting applications, a piggyback single float switch can be supplied.
Godwin GST Series Sub-Prime® Electric Submersible® Trash Centrifugal Pumps
Unit of Measure
Items 0.5 Horsepower (hp) Motor Power Sub-Prime Electric Submersible® Trash Centrifugal Pump
GST05
Godwin GST Series 0.5 Horsepower (hp) Motor Power Sub-Prime® Electric Submersible® Trash Centrifugal Pump 		1.0 Horsepower (hp) Motor Power Sub-Prime Electric Submersible® Trash Centrifugal Pump
GST10
Godwin GST Series 1.0 Horsepower (hp) Motor Power Sub-Prime® Electric Submersible® Trash Centrifugal Pump
Description N/A The GST Sub-Prime® line is a selection of portable, electric submersible pumps designed for trash-laden applications. Standard side discharge and semi-vortex cast iron impeller enable these units to handle solids up to 1 in. (25 mm) in diameter. The fully removable volute makes clean-out fast and easy. The GST Sub-Prime® line offers flow rates to 75 gpm (4.75 l/sec) and maximum heads to 48 feet (14.6 m). Units is available in 0.5 hp / 0.4 kW. High-performance and affordability combine to make the GST Sub-Prime® pump ideal for use in general dewatering applications, as well. For automatic starting applications, a piggyback single float switch can be supplied. N/A The GST Sub-Prime® line is a selection of portable, electric submersible pumps designed for trash-laden applications. Standard side discharge and semi-vortex cast iron impeller enable these units to handle solids up to 1 in. (25 mm) in diameter. The fully removable volute makes clean-out fast and easy. The GST Sub-Prime® line offers flow rates to 75 gpm (4.75 l/sec) and maximum heads to 48 feet (14.6 m). Units is available in 1 hp / 0.75 kW. High-performance and affordability combine to make the GST Sub-Prime® pump ideal for use in general dewatering applications, as well. For automatic starting applications, a piggyback single float switch can be supplied.
Brands N/A Godwin
Motor Power N/A 0.5 hp0.4 kW N/A 1.0 hp0.75 kW
Maximum Flow N/A 60 USGPM3.8 L/s N/A 75 USGPM4.7 L/s
Maximum Head N/A 33 ft10 m N/A 48 ft14.6 m
Maximum Solids Handling N/A 1 in25 mm
Cable Length N/A 30 ft9 m N/A 50 ft15 m
Discharge Diameter N/A 2 in50 mm
Pump Speed N/A 3600 rpm
Maximum Fluid Temperature N/A 90 ºF32 ºC
Concentration Range N/A 6.5 to 8.0 pH
Voltage N/A 115 V230 V
Current N/A 2.9 A5.8 A N/A 5.1 A10.3 A
Number of Phase N/A 1
Height N/A 14.67 in373 mm N/A 16.36 in416 mm
Mid-Height N/A 6.0 in152 mm
Width N/A 9.85 in250 mm
Weight N/A 22 lb10 kg N/A 29 lb13 kg
Maximum Submergence N/A 16.5 ft5 in
Pump Type N/A Trash
Industry Standards/Certifications1 N/A Canadian Standards Association (CSA) Certified
Features and Benefits N/A
  • Solids handling up to 1 in. (25 mm) in diameter
  • Dry-running capability without damage
  • No control panel required
  • Portable, lightweight, durable
  • Side discharge design
  • Non-wicking cable with strain relief
  • High-torque, capacitor-start motor
  • Motor thermal overload protection
  • Silicon Carbide upper and lower mechanical seal
  • Triple sealed - internal upper and lower mechanical seals and external lip seal
  • Semi-vortex cast iron impeller
  • Cast iron volute, fully removable for easy clean-out
Float Switch N/A Optional Float Switches available for automatic, remote activation of Sub-Prime® pumps.

Package consists of 30 ft / 50 ft (9 m / 15 m) power cord with piggyback power plug, variable length float tether, and sealed float.
Warning N/A Pumps are not designed for use in explosive atmosphere, flammable environments or for pumping volatile liquids.
Note N/A Specifications and illustrations are subject to revision without notice.
  • 1 Indicates that the product was tested and has met the certification requirements.