Darley has recently released the HMBC 500/220 to market. This is a single-stage, highly efficient, 500-gpm water pump mixed with an electrically clutched, high-capacity, 220 cfm rotary screw air compressor. At a Class A medium foam setting using 200 gpm and 200 cfm at an 8:1 expansion ratio, this combination of water and air, when combined with Darley’s AutoCAFS Commander PLC control head and a Foam Pro Injection system, has a discharge volume equivalent to 1,600 gpm–a lot of firefighting power in a small space.
Considering this capability, the HMBC allows for a smaller truck and less water where it’s needed most. Perfect for our first responders. When installed on a full pumper-style truck, firefighters will have more room on your truck for the equipment you normally could not fit.
As a benefit, when foam is not always needed or used, firefighters can use this system as an auxiliary source of compressed air or disengage the compressor system altogether and use only the water pump.
It is highly-efficient, compact, and one of the lightest weight units on the market. Contact Darley for layout assistance and PTO selection at http://www.edarley.com/.