Fuel Oil Handling System (FOHS)


Thermo System undertakes complete Design, Engineering, Supply, Fabrication, Installation, Erection, Testing & Commissioning of FOHS for different type of fuels (HFO, HSD, LDO, Naphtha etc) to be stored. Complete mechanical, electrical and engineering jobs are covered.

Typical Fuel Oil Handling System consists of unloading hose, decanting and transfer facilities, pumping and heating unit (if applicable), bulk storage tank, day tank and the process utility piping.

Unloading Skid

Used for unloading the fuel from tankers / wagons through hoses

A typical unloading skid consists of

  • Suction strainers
  • Pumps with drives
  • Instrumentation (pressure, temperature & flow)
  • Interconnecting piping with valves mounted on a common base frame

Bulk Storage Tank

Designed to API 650 and IS 803 standards to accommodate the Fuel Oil unloaded from tankers / wagons. These can be vertical fixed / floating roof tanks with material of construction of SS 316 / SS304 / Carbon steel.
A typical storage tank consists of
  • Electrical / steam heaters
  • Flame and lightings arresters
  • Breather valves
  • Instrumentation (level and temperature)
  • Thermal insulation

Transfer Skid

Used for transferring the fuel from storage tanks to the day tanks
A typical transfer skid consists of
  • suction strainers
  • pumps with drives
  • instrumentation (pressure, termperature & flow)
  • interconnecting piping with valves
  • inline heaters on the pump discharge line mounted on a common base frame.

Day Tanks

  • Designed to accommodate the day’s requirement of fuel and located near the utility point.
Pumping & Heating (PHF) Unit
  • PHF unit is used to transfer the fuel from day tanks to the utility point i.e. boiler firing, furnace firing, engine etc at a required pressure, temperature & flowrate.
A typical PHF unit consists of
  • Inline Heater.
  • Instrumentation (pressure, temperature, flow, viscosity etc)
  • Pressure regulating / control valves
The balance scope as described in the transfer skid.


The total process utility piping (CS/SS) - starting from unloading point to utility point along with the necessary accessories and instrumentation.


This comprises of power distribution from control instruments like RTDs, thermostats etc. for control and monitoring of various parameters in the system.

This can be classified as follows
  • Control panels ( PCC/ MCC/ LCP/ PLC, Instrumentation panels)
  • Power, control and instrumentation casing
  • Cable tray, earthing etc.