The Otter HP is a hydraulically driven, floating submersible pump system that excels in capacity, mobility, and ease of use. Built with advanced composite technology, the system is exceptionally lightweight and can be handled by just one or two operators. The SP4 submersible pump delivers high volumes of pressurized water, making it ideal for supplying monitors or fire trucks during large-scale incidents.
OTTER HP submersible pump system
DNM Industrial Firefighting introduces the Otter HP – the first ultra-light, fully composite submersible pump system for large-scale firefighting. The Otter HP is designed for situations where massive amounts of firefighting water are required in the shortest possible time.
COMPOSITE ULTRA-LIGHTWEIGHT FLOATING SUBMERSIBLE PUMP SYSTEM
The Otter HP is powered by a compact power unit suitable for mounting on a trailer or vehicle with a minimum payload capacity of 2,585 kg. With its standard 30-meter hydraulic umbilical, the pump can be flexibly deployed at open water sources that are inaccessible to conventional pumps. This makes the Otter HP a powerful and reliable tool for fast, large-scale water supply in firefighting operations.
Features and Benefits of the Otter HP
The first high-flow floating submersible pump made entirely from CFRP (carbon fiber reinforced polymer).
Superior corrosion resistance in both fresh and salt water.
No priming or suction required.
Expands access to a wider range of open water sources.
Can be physically handled by one or two responders.
Flexible deployment across various terrains.
Improves shuttle operations by eliminating the need for a stationary suction pump, reducing tanker refill times.
Easy to refuel during operation.
Power unit is air-transportable and can be positioned remotely from the water source.
Operates with non-toxic, biodegradable hydraulic fluid.
SPECIFICATIONS
Power Unit:
Tier 4 / Euro V: 225 hp (168 kW) Deutz diesel engine
Tier 3: 235 hp (175 kW) FPT diesel engine
Fuel tank: 189 liters (50 gallons), stainless steel
Runtime: approx. 4 hours at 100% load
Hydraulic Drive System:
Closed hydraulic system with variable 100 cc (or larger) hydraulic pump
Environmentally friendly, biodegradable hydraulic fluid
Hydraulic tank: 73.4 liters (19.4 gallons), stainless steel
Housing / Skid:
Dimensions (depending on engine configuration):
Length: 2164 mm (85”)
Width: 1575 mm (62”)
Height: 1646 mm (65”)
Constructed from high-grade steel with liquid-tight containment basin
Aluminum panels
Cross-mounted forklift pockets
Total system weight: approx. 2585 kg (5700 lbs)
Interior and exterior LED lighting
Transport Options:
4x4 pickup truck
Trailer
Airlift-capable
Hose Reel:
Standard 30-meter (100 ft) hydraulic umbilical
Quick-connect hydraulic couplings for submersible pump
Control System:
Rugged Plus+1 control display
IP67-rated physical control buttons
Full engine and hydraulic system monitoring and control
Emergency stop
IP65-rated housing
“Smart Charger” technology
Pump Type:
The Otter HP comes standard with the SP4 submersible pump — a centrifugal pump constructed from carbon fiber reinforced polymer composite. The SP4’s housing and impeller are fully corrosion-resistant in salt water, offering an ultra-lightweight design.
Technical Details:
Floating source pump with Hydra-Leduc 90 or 125 cc motor
Required water depth: 914 mm (36 inches)
Discharge options: 8” (3-lug Storz) or 12” (4-lug Storz)
Materials and Construction:
Impeller: Carbon fiber reinforced polymer with integrated stainless steel shaft sleeve (304 or 316)
Housing, motor plate, suction plate: Carbon fiber reinforced polymer
Skid and integrated strainer: Powder-coated aluminum
Pontoons: Molded fiberglass, polyethylene, or aluminum
