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GST Sub-Prime
GST Sub-Prime

GST Sub-Prime

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 up to 1" (25mm) diameter solids. And 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 meters). Units are available in 0.5 hp / 0.4 kW (GST05) and 1 hp / 0.75 kW (GST10) models. Need versatility? High performance and affordability combine to make the GST Sub-Prime ideal for use in general dewatering applications as well. For automatic applications, a piggy back single float switch can be supplied.

  • Solids handling up to 1" (25mm) 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 mechanical seal
  • Triple seals — internal upper and lower mechanical seals and external lip seal
  • Semi-vortex cast iron impeller
  • Cast iron volute, fully removable for easy clean-out
  GST05
GST10
HP (kW)
0.5 HP/0.4 kW
1.0 HP/0.75 kW

Max. Flow

60 gpm (3.8 l/sec.)
75 gpm (4.7 l/sec.)
Max. Head 33' (10 meters)
48' (14.6 meters)
Max. Solids
1" (25mm)
1" (25mm)
Cable Length
30' (9 meters)
50' (15mm)
Discharge Size 2" (50mm)
2" (50mm)
RPM
3600
3600
Max. Fluid Temp.
90°F (32°C) 90°F (32°C)
PH Range 6.5-8.0
6.5-8.0
Voltage 115, 230
115, 230
Amps 5.8, 2.9
10.3, 5.1
Phase Single
Single
Height
14.67" (373mm)
16.36" (416mm)
Width
9.85" (250M)
9.85" (250mm)
Weight
22 lbs. (10kg)
29 lbs. (13 kg)
Max. Sub.
16.5' (5M)
16.5' (5M)

 

GST Sub-Prime
GST Sub-Prime

Optional Float Switches available for automatic, remote activation of Sub-Prime pumps. Package consists of 30'/50' (9M/15M) power cord with piggy-back power plug, variable length float tether, and sealed float. Typical configuration shown in the following.

Pumping range determined by tether length according to the following guide.

Tether Length
3.5
89
5
127
7
178
9
229
11
279
13
330
15 (in.)
381 (mm)
Pumping Range
6.5
165
7.5
191
8.5
216
10
254
11
279
12.5
318
13.5 (in.)
343 (mm)


Pumping range based on operation in non-turbulent conditions. Actual range may vary due to temperature conditions and cord shape. Tether length increases variance of pumping range.

GST Sub-Prime

WARNING: Pumps are not designed for use in explosive atmosphere,
flammable environments or for pumping volatile liquids.

GST Sub-Prime

Product Datasheets

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