DEPENDAPOWER Submersible Pump

Based on the vast experience of Williams Fire & Hazard Control with suppressing industrial fires and mitigating other hazards, DEPENDAPOWER Submersible Pump continues the proven technique of applying overwhelming fire suppression power to control a dangerous situation in the shortest time possible.

The highly efficient hydraulic submersible pump is driven by a market leading diesel engine to pump water at a rate of 8,000 gpm (30,000 Lpm) from a water source as far as 200 ft (61 m) away with a vertical lift of 35 ft (10.6 m). This water flow can then be delivered to an on-board or separate boost pump where pressure is increased before sending to end-of-line devices.


The pump is available as either a standalone pumping system to feed a standalone boost pump, or as a pump combination with a DEPENDAPOWER boost pump. In either configuration, the water can be fed into large volume firefighting monitors such as the Williams Fire & Hazard Control Ambassador monitor, or sent over a long distance hose relay, substantially increasing the logistical efficiency at incident sites.

The submersible unit is compact and easy to deploy. The self-contained pumping system can be built on a base skid, a hookload skid, or a trailer for easy transportation. A large integrated fuel tank can hold enough fuel to run the pump for up to 8 hours (depending on configuration and use).

Every unit has a high strength integrated lifting rack which allows crane lifting with a standard 4-point lift that does not require a spreader-bar. Fabricated with structural steel and stainless steel fasteners, the DEPENDAPOWER Submersible Pump is designed to pump fresh water, sea water, or brackish water. They are tough pumping systems delivering years of worry-free operations with low maintenance requirements.

Firefighting experience and commitment to reliability are incorporated into the design of the control system. DEPENDAPOWER Submersible Pump and submersible/boost combination units provide a user-friendly, waterproof LCD control screen as a primary interface, advanced sensors, redundant control mechanisms, and emergency shut-down switches for safe and easy operation that does not require extensive training.

The standalone submersible pump is ideal if you already have a DEPENDAPOWER draft/boost pump. Weighing only 320 lbs (145 kg), the floating unit is equipped with ergonomically designed carry poles which allow two or four operators to carry the pump unit into hard to reach locations. The combo pump provides unparalleled pumping and boosting capabilities in one transportable package. An optional wireless controlled crane is also available to aid deployment of the floating unit.

Features & Benefits

  • World class components
  • Enhanced safety
  • Ease of use
  • Modular compact design
  • Versatile applications
  • Multi-use response equipment
  • Wide range of options and flexibility of customization
Model Configuration Nominal Performance of Submersible (Flow/Lift) Nominal Performance of Booster (Flow/Pressure Boost) Combined Capacity of Submersible and Boost pumps in parallel pumping
DP-SP 4000 Stand alone submersible pump 4,000 GPM (15,000 LPM) 35 ft (10.6 M) N/A N/A
DP-SB-4000 Submersible/Boost Combo 4,000 GPM (15,000 LPM)/35 ft (10.6 M) 4,000 GPM (15,000 LPM)/150 PSI (10.3 bar) 8,000 GPM (30,000 LPM)
DP-SP 8000 Stand alone submersible pump 8,000 GPM (30,000 LPM) 35 ft (10.6 M) N/A N/A
DP-SB 8000 Submersible/Boost Combo 8,000 GPM (30,000 LPM)/35 ft (10.6 M) 8,000 GPM (30,000 LPM)/150 PSI (10.3 bar) 14,000 GPM (53,000 LPM)*
DP-SP 12000 Stand alone submersible pump 12,000 GPM (45,000 LPM) 35 ft (10.6 M) N/A N/A

*In this configuration, the boost pump operates to draft water at a slightly reduced capacity.