Oil Coolers
Highly Versatile and Customizable Portfolio of Shell-and-Tube and Plate Units

Oil cooler shell and tube heat exchangers are specially designed units that are purpose-built to cool hydraulic, lubricating, quenching, transformer, and other process oils in internal combustion engines, gearboxes, transmission systems, etc. These oils are essential in their respective applications for reducing friction and wear of metal components, removing heat, and performing specific functions such as transmitting power and insulating electrical equipment. Proper cooling is critical to maintain oil stability and extend machinery lifetime as oils above their operating temperature range can lose viscosity, oxidize, or otherwise break down leading to equipment overheat, wear and, eventually, failure. Oil coolers are designed so that oil flows through the shell-side to reduce pressure drops and improve accessibility for removal of oil fouling; this oil typically runs at temperatures of 40-90°C (as high as 225°C) and is cooled by process cooling water or seawater flowing through the tubes.
Valutech works with experienced shell and tube heat exchanger manufacturers to supply oil coolers to suit for industrial manufacturing, mining, and marine applications across a wide range of process scales and operating conditions. The shell and tube oil cooler models we provide have the following general design features:
• Diameters of 84-338 mm (3.3”-13.3”),
• Lengths of 174-1900 mm (6.8”-74.8”).
• Large shell-side clearances with flexible baffle counts to reduce oil-side pressure drop and shear stress.
• Removable end covers for simple cleaning and servicing.
• Available in a variety of connection styles to suit existing process piping.
• Corrosion-resistant tube materials to support available cooling water contaminant and salinity.
Find and compare the oil coolers suitable for your application from the model overview below:
The TAB series is a general-purpose oil cooler featuring a brass shell construction, bronze end covers, and available 90/10 cupronickel and 316 SS tubes. With a broad heat transfer surface area range of 1.4-308 ft2, it is suitable for oil cooling applications of virtually all sizes.

| TAB Series* Common Dimensions (Inches) & Weights |
400† | 700 | 1000 | 1200 | 1600 |
|---|---|---|---|---|---|
| Dimension ‘A’ | 2.125” | 3.656” | 5.125” | 6.125” | 8.00” |
| Dimension ‘B’ | 7.62” – 16.62” | 7.00” – 34.00” | 15.50” – 33.50” | 14.62” – 86.38” | 13.60” – 85.60” |
| Dimension ‘C’ | 3.50” | 6.25” | 7.38” | 8.81” | 12.13” |
| Dimension ‘M’ | 11.24” – 20.24” | 13.28” – 40.47” | 23.60” – 41.60” | 23.94” – 96.19” | 25.10” – 98.72” |
| NPT Connection Size | 0.5” | 1” | 1.5” | 2” | 3” |
| SAE Connection Size | #8 3/4“ | #16 15/16“ | #24 1 7/8“ | #32 2 1/2“ | 3.0” Four Bolt Flange |
| Weight in lb | 7-10 | 23-49 | 54-82 | 79-230 | 145-390 |
*Based on maintaining a pool temperature of 82°F.
The TT series features a steel shell construction and is a robust oil cooler option in applications where mechanical strength is a priority and corrosion due to water quality is not a concern.

| TT Series* Common Dimensions (Inches) & Weights |
600 | 800 | 1000 | 1200 | 1700 |
|---|---|---|---|---|---|
| Dimension ‘A’ | 3.25” | 4.25” | 5.25” | 6.25” | 8.25” |
| Dimension ‘B’ | 4.50” | 6.00” | 6.75” | 7.75” | 10.12” |
| Dimension ‘C’ | 10.00” – 20.00” | 9.00” – 31.00” | 18.25” – 66.25” | 17.00” – 77.0” | |
| Dimension ‘M’ | 17.18” – 27.18” | 17.88” – 39.88” | 19.09” – 41.09” | 30.00” – 78.00” | 31.47” – 91.47” |
| Drain Connection ‘K’ (NPT) | 0.25” | 0.38” | |||
| NPT Connection Size | 1” | 1.5” | 2” | 3” | |
| SAE Connection Size | #16 1 5/16“ | #24 1 7/8“ | #32 2 1/2“ | 3.0” Four Bolt Flange | |
| Weight in lb | 17-24 | 32-53 | 43-72 | 85-185 | 140-340 |
*Based on maintaining a pool temperature of 82°F.
The TAA series is a general-purpose oil cooler featuring a brass shell construction, bronze end covers, and available 90/10 cupronickel and 316 SS tubes. With a heat transfer surface area range of 1.3-200 ft2, it is best suited to small to medium-sized oil cooling applications.

| TAA Series* Common Dimensions (Inches) & Weights |
400† | 600 | 800 | 1000 | 1200 | 1600 |
|---|---|---|---|---|---|---|
| Dimension ‘A’ | 2.125” | 3.125” | 4.125” | 5.125” | 6.125” | 8.00” |
| Dimension ‘B’ | 6.25” | 6.12” – 22.12” | 11.12” – 33.12” | 20.50” – 68.50” | 19.00” – 79.00” | |
| Dimension ‘C’ | – | 4.19” | 5.88” | 6.50” | 7.50” | 9.75” |
| Dimension ‘M’ | 11.00” | 10.75” – 27.75” | 17.62” – 40.00” | 18.50” – 40.50” | 28.75” – 77.50” | 30.50” – 91.25” |
| NPT Connection Size | 0.5” | 1” | 1.5” | 2” | 3” | |
| SAE Connection Size | #8 3/4“ | #16 1 5/16“ | #24 1 7/8“ | #32 2 1/2“ | 3.0” Four Bolt Flange | |
| Weight in lb | 7 | 12-20 | 37-67 | 45-82 | 90-180 | 160-320 |
*Reference diagrams display single pass models —two pass and four pass models also available.
†Only available in single pass configuration.

Bowman hydraulic oil coolers are a range of standard units that are designed for industrial manufacturing, marine, and mining applications where oils run at temperatures up to 200°C and water is supplied up to 35 bar. They are available with BSP threaded or SAE flanged connections depending on model size, and can be specified with cupronickel or titanium tube stacks, as well as cast iron or marine-specification end covers. Removable end covers allow for access to the tube bundle, allowing for thorough mechanical and chemical cleaning of the tube exteriors and interiors. Bowman oil cooler units feature fully floating tube stacks to minimize thermal stress and pressure drop with efficient heat transfer profiles, and are available with roller expanded tubes to provide extra joint durability.
For applications that require a compact installation footprint with a high thermal efficiency, Valutech offers Alfa