The object in the image is a Roper 2" gear pump, likely a model 3611-GHBRV Type 3 with a 3.20 to 1 reducer. It is painted red and appears to be made of cast iron.
Helpful information:
Function: Gear pumps like this are used to transfer fluids by using the meshing of gears to pump fluid by displacement.
Applications: This type of pump can be used in fire protection systems to increase water pressure for fire sprinklers and standpipes. It can also be used for other applications, such as in the asphalt industry.
Power Source: Fire pumps can be powered by electric, diesel, or steam.
Maintenance: Regular maintenance is crucial to ensure the pump's reliability.
NFPA Standards: Fire pump installations are governed by the National Fire Protection Association (NFPA) 20 standard.