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Heidra 103
Heidra 103

Heidra 103

The Godwin 4" (100mm) Heidra 103 hydraulic submersible pump is a compact, self-contained pumping unit featuring a diesel driven power pack and a 4" (100mm) submersible hydraulic top discharge pump. With variable speed diesel engine power, the Heidra 103 pump can meet a variety of flow and head requirements up to 1,000 GPM (227 m3/h), total dynamic heads to 170’ (52 m) and solids handling to 3" (75mm) in diameter.


  • Unique top discharge design enables pump to fit through a 21" (533 mm) diameter opening.
  • Rugged construction featuring cast iron pumping chamber and cast chromium steel impeller.
  • Bearings are independent from the hydraulic gear motor – pump loads in no way affect gear motor performance.
  • Double mechanical seal in its own clean oil bath allows for indefinite dry running. Inboard seal: silicon carbide. Outboard seal: carbon or ceramic.
  • Standard impeller designed for general pumping, slurries and sludges.
  • Standard two-bolt SAE flange gear motor connections.
  • Simple-to-maintain, gear motor with “plug-in” connection allows for quick changeover when needed.

Performance Table

Diesel Set — JD4024T, 41 HP (31 kW) @ 2200 RPM
Impeller Diameter — 9.134" (232 mm)

Total Delivery Head - Feet


Total Suction
60 80 90 100
Head (ft)

Output - GPM 850

Performance data listed in table and curves based on water test at sea level and 68°F (20°C).
Larger diameter pipes may be required for maximum flows.


Submersible Pump

Hydraulic Motor
Gear type
Drive Pressure
Up to 2500 PSI (172 BAR)
Hydraulic Flow
Up to 33 GPM (7.5 m3/h)
Hydraulic Line Length
300' (91 m) max
Solids Handling
Up to 3" (75 mm) in diameter
Pump Speed (RPM)
Up to 2200 RPM
Impeller Diameter
9.134" (232 mm)
4" (100 mm) FNPT
Hydraulic Connections
1" (25 mm) quick disconnect feed and return; 0.5" (13 mm) quick disconnect case drain
Strainer Nylon coated with 3" (75 mm) square apertures

Power Pack

4024T 41 HP (31 kW) @ 2200 RPM
Fuel Tank Capacity
60 gallons (227 l)
Output Hydraulic Flow
33 GPM (7.5 m3/h)
Output Pressure Control
Up to 2500 PSI (172 BAR)
Hydraulic System
Two pipe, open circuit
40 gallons (151 l)
Control Valve
Through variable speed engine
1" (25 mm) API
Supply Line Filter
125 micron, pleated gauze
Return Line Filter
20 micron

Pump Casing & Suction Cover
Aluminum or cast iron
Pump Shaft
Mild steel
Cast steel
Cast iron
Mechanical Seal
Inboard: solid silicon carbide
Outboard: carbon on ceramic

Heidra 103
Heidra 103

Product Datasheets

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