DC Oil Coolers
Compact, efficient oil & transmission cooling
Bowman DC oil coolers pack genuine, big-cooler performance into a compact shell-and-tube design. Fully sealed to handle oil pressures up to 30 bar and gearboxes on engines rated up to 180kW, they're ideal for marine gearboxes and oil systems where space is tight but reliability can't be compromised.
Big Cooler Performance in a Compact Package
The Bowman DC is a single-pass, shell-and-tube oil cooler engineered for applications where space is at a premium but performance cannot be compromised. With a fixed tube stack and specially designed internal baffles, it drives efficient heat transfer from a remarkably small footprint, and is fully sealed to reliably handle oil pressures of up to 30 bar.
Built using the same size tubes as Bowman's larger oil cooler range, the DC features a solid brass body with a durable nickel-plated outer shell, a corrosion-resistant 90/10 cupro-nickel tube stack, and tough neoprene end covers. A wide choice of four oil port sizes (3/8" and 1/2", in both BSP and NPT), three seawater pipe sizes, and in-line or right-angle end covers means there's a variant to suit almost any installation.
DC oil coolers have been selected for some of the toughest applications on land and at sea, with hundreds of thousands of units in service worldwide. Manufactured in the UK to ISO 9001 standards and supported in Australia by Luxfords with genuine Bowman product, expert selection advice and maintenance workshops on the east and west coasts.
Why Choose Bowman DC Oil Coolers?
Compact Design
Easily integrated into new or existing installations where space is tight, without sacrificing cooling capacity.
Proven Durability
A nickel-plated brass shell and 90/10 cupro-nickel tube stack stand up to harsh marine and industrial environments.
High Performance
Fully sealed construction handles oil pressures up to 30 bar, on gearboxes behind engines rated up to 180kW.
Easy to Maintain
Neoprene seawater connections install and remove with just a screwdriver for fast routine cleaning.
Model Range & Performance
A guide to the four DC models. Figures based on in-line end-cover versions; maximum working oil pressure 30 bar, water pressure 2 bar, temperature 125°C.
| Model | Typical Gearbox Rating | Oil Volume | Water Volume | Weight |
|---|---|---|---|---|
| DC50 | 50 kW | 80 ml | 160 ml | 0.9 kg |
| DC60 | 80 kW | 105 ml | 200 ml | 1.1 kg |
| DC90 | 140 kW | 160 ml | 240 ml | 1.3 kg |
| DC120 | 180 kW | 200 ml | 325 ml | 1.7 kg |
Oil ports available in 3/8" and 1/2" (BSP or NPT). Straight and right-angle neoprene end covers available; units also supplied without end covers. Full ordering codes and dimensions are in the brochure.
Materials & Construction
The DC oil cooler is built around a solid brass body finished with a nickel-plated outer shell, giving a durable, attractive surface that resists wear and corrosion. The tube stack is manufactured from 90/10 cupro-nickel — the same specification used throughout Bowman's larger oil cooler range — for excellent resistance to seawater corrosion and long service life.
Tough neoprene end covers complete the assembly and protect the connections. A choice of straight or right-angle covers in three seawater pipe sizes, plus four oil port options, lets you configure the exact unit your installation needs.
Servicing & Parts
The neoprene seawater connections are designed for simple installation and easy removal using only a screwdriver, making routine cleaning and maintenance quick and straightforward. End covers are available as individual replacement parts, and Luxfords backs every unit with maintenance workshops on both the east and west coasts of Australia.
Applications
Marine Transmission Cooling
Compact seawater-cooled units ideal for cooling marine gearboxes and transmissions where installation space is limited.
Industrial & Hydraulic Oil
Proven in demanding land-based applications, with DC variants available for hydraulic oil cooling duties.
Fuel Cooling
DC models configured for fuel cooling are available on request — just ask the Luxfords team.
Get the Right Unit, First Time
Bowman offers computer-aided selection to match the correct DC cooler to your duty. To recommend the right unit, please provide:
- Oil type or viscosity at a specific temperature
- Oil flow (l/min)
- Required oil outlet temperature (°C)
- Heat to be dissipated (kW)
- Seawater temperature (°C)
- Seawater flow (l/min)
Our qualified mechanical & heat-transfer engineers are here in Australia to help you select and specify the right unit.
Enquire About DC Oil Coolers
Talk to a Heat Transfer Specialist
Need help choosing? Our team can match the right Bowman dc oil coolers to your exact application.