Hairpin HX & Tank Heaters

Hairpin Heat Exchangers:

• Operates in true counter current flow permitting extreme temperature cross.
• Economically adaptable to service differentials.
• Ideal for wide temperature ranges and differentials
• Standard double pipe or multi-tube design reduces engineering, thermal design, drafting and shop fabrications costs.
• Provides shorter deliveries than shell & tube due to standardization of design and construction
• Resistance welded longitudinal fintubes utilized for high heat transfer efficiency
• Available in a wide range of sizes to meet most process requirements.
• Multiple sections shipped completely assembled and ready for process piping connection.
• Can custom engineer equipment to meet any process or piping requirement.
• All hairpin heat exchangers are A.S.M.E. inspected and code stamped.

The Holland Petrofin Patented Closure

• The most efficient seal on the market.
• Guaranteed against interstream leakage
• Allows for more tubes in a given shell size resulting in more heat exchanger for the same competitive dollar

The Holland Petrofin Patented Closure

• Contains separate flanges and bolting for each sealing surface.
• Can handle all applications in severe service.
• Recommended for pressures above 2000 psig, cyclic service, low temperature service, extreme temperature differentials and hard to hold fluids.

Suction Heater Details:

• Used in heating heavy viscous fluids (ex. heavy crude)
• Suction heaters heat the fluids directly from the tank to temperatures suitable for pumping.

Line Heaters Details:

• Mounted in line
• Heats the fluids to processing or burner temperatures.
• Steam is generally the heating medium, but hot water, hot oils or heat transfer fluids can be used.

R.W. Holland’s Tank Heating Coils are fabricated with fintubes having the orientation of the fin in the direction of the convection currents in the tank. When the fluid next to the fintube is heated it rised rapidly die to the lower density. The colder fluid at the top of the tank falls to the bottom, creating a thermosyphon action in the tank.

Providing tank heating coils with the fins longitudinally for vertical coils and helically for horizontal coils is the most effective heat transfer surface because the fluid rising vertically passes between the fins, not across the fins.

since Holland Tank Heat Coils are supported off the tank floor and tank fluid is kept in motion by the thermosyphon effect, sediment remains in suspension and the heating coils, tank walls and the floor are kept clean.