Which pressure range is typical for a COW system?

Which pressure range is typical for a COW system?

• A. 50-80 psi
• B. 110-150 psi
• C. 80-100 psi
• D. 150-200 psi

Answer: (B)

In crude oil washing, you need enough pressure to atomize the crude oil and propel it as a spray across the tank walls so deposits and residues can be effectively dislodged. The typical spray pressure for COW systems sits in the mid-high range—about 110 to 150 psi—because this corresponds to roughly 7.5 to 10 bar, which provides a strong, uniform spray that can reach and cover vertical surfaces and tight corners inside the tanks without overstressing equipment. If the pressure is too low, the spray won’t reach everywhere or won’t clean thoroughly. If it’s too high, you risk excessive wear on nozzles and piping, spray hazards, and wasteful use of oil. The exact pressure is determined by nozzle design, pump capacity, and tank geometry, but 110–150 psi is the common operating range for effective COW cleaning.

In crude oil washing, you need enough pressure to atomize the crude oil and propel it as a spray across the tank walls so deposits and residues can be effectively dislodged. The typical spray pressure for COW systems sits in the mid-high range—about 110 to 150 psi—because this corresponds to roughly 7.5 to 10 bar, which provides a strong, uniform spray that can reach and cover vertical surfaces and tight corners inside the tanks without overstressing equipment. If the pressure is too low, the spray won’t reach everywhere or won’t clean thoroughly. If it’s too high, you risk excessive wear on nozzles and piping, spray hazards, and wasteful use of oil. The exact pressure is determined by nozzle design, pump capacity, and tank geometry, but 110–150 psi is the common operating range for effective COW cleaning.