PTO Pumps

AUTOPRESSURE SYSTEM

Single Stage, Centrifugal, Hydraulic Driven, Gear Driven

DIMENSIONS

Patented Darley AutoPressure is an electronically controlled hydraulic drive system that automatically maintains preset output pressure of either high pressure or low pressure Fire Pumps

It can be used to drive one or multiple pumps for high pressure/high volume simultaneous operations

It can be specified to drive any of the Darley single- suction range of pumps, all of which are available with integral SAE hydraulic motor adaptors

Output pressure is maintained despite variations in Intake Pressure, Output Flow and Engine RPM

Safety & Simplicity of Operation - – Any combination of HP & LP pressures can be maintained simultaneously

Each pump is direct-driven by an integral hydraulic motor.

Power Take-Off (PTO) units on truck transmission - Engaged from cab

Variable displacement hydraulic pump driven by PTO.

The hydraulic pump drives hydraulic motor which powers Fire Pump

Electronic controller instructs hydraulic pump to maintain constant Fire Pump output pressure

APPLICATIONS

Aerial

Crash Fire Rescue

Mini Pumper

Pumper

Pumper Tanker

Rescue Pumper