Hydraulic Oil
Coolers

Product Profile

Efficient Heat Dissipation
Designed to remove excess heat generated in hydraulic systems with high ambient temperatures

The Thermex range of shell and tube hydraulic coolers are essential for efficient dissipation of excess heat to ensure the optimum performance of any hydraulically driven industrial and process equipment.

Our modular approach to component parts allow flexible versatility and cost-effective solutions to heat exchanger design We utilise industry proven designs and technology which combine high performance with durability and reliability.

Our standard range of hydraulic oil coolers is shown below:

Features & benefits

2300/2500 Series - extruded aluminum bodies

2700/2800 Series – cast aluminium bodies

Cast iron headers for use with freshwater cooling medium

3 pass cooling configurations as standard

90/10 Cupronickel tube stacks

Floating tube stack eliminate thermal expansion damage and allows easy access for removal

Industry standard BSPT (British Standard Pipe Taper) threaded port sizes

Leak detection rings (2700/2800: standard, 2300/2500: optional)

Viton seals allow operating temperatures up to 120°C

Duty Range: 3kW to 750kW (subject to flow rates and temperatures)

Maximum Working Pressure: Oil Side @ 20-30 Bar

Maximum Working Pressure: Water Side @ 10 Bar

Options available

Other headers materials available include gun metal and glass-filled nylon composite

1 and 2 pass cooling configurations on request

Tube stack material options include 70/30 cupronickel, 304 stainless steel and titanium

can't find what you're looking for?

If you can’t find anything suitable from our standard range, please fill in and return our Technical Enquiry Data Sheet, and our engineers can design the perfect oil cooler for your application from operational data provided such as inlet temperatures and flow rates.

Specifications

technical information

2300 Series Overview

Models

Part
Number
Series
Number
A (mm)B (mm)C (mm)D (BSP)E (BSP)F (mm)G (mm)H (mm)Weight (Kg)Oil Volume (Litres)Water Volume (Litres)
820321231217559*1/2"1/2"921035030.30.4
820321H2312H17559*1/2"3/4"921035030.30.4
82032223222591351173/4"1/2"921035040.50.5
820322H2322H2591351173/4"3/4"921035040.50.5
82032323323452212033/4"1/2"921035050.70.6
820323H2332H3452212033/4"3/4"921035050.70.6
82032423424433193013/4"1/2"921035051.00.7
820324H2342H4433193013/4"3/4"921035051.00.7
82032523525714474293/4"1/2"921035061.30.9
820325H2352H5714474293/4"3/4"921035061.30.9
82032623627175875751"1/2"921035071.71.1
820326H2362H7175875751"3/4"921035071.71.1
82032723728957657531"1/2"921035082.21.4
820327H2372H8957657531"3/4"921035082.21.4

Dimensions

2300 Schematic

Specifications

Part NumberSeries NumberBody MaterialBody Port (BSPT)Header MaterialTube Pass (Cold Side)Header Port (BSPT)O Ring MaterialTube Stack Part NumberTube Stack MaterialTube Stack LengthTube Plate ØTube Plate MaterialBaffle Material
8203212312ALUMINIUM1/2"CAST IRON31/2"VITON72005190/1010676NAVAL BRASSALUMINIUM
820321H2312HALUMINIUM1/2"CAST IRON33/4"VITON72005190/1010676NAVAL BRASSALUMINIUM
8203222322ALUMINIUM3/4"CAST IRON31/2"VITON72005290/1019076NAVAL BRASSALUMINIUM
820322H2322HALUMINIUM3/4"CAST IRON33/4"VITON72005290/1019076NAVAL BRASSALUMINIUM
8203232332ALUMINIUM3/4"CAST IRON31/2"VITON72005390/1027676NAVAL BRASSALUMINIUM
820323H2332HALUMINIUM3/4"CAST IRON33/4"VITON72005390/1027676NAVAL BRASSALUMINIUM
8203242342ALUMINIUM3/4"CAST IRON31/2"VITON72005490/1037476NAVAL BRASSALUMINIUM
820324H2342HALUMINIUM3/4"CAST IRON33/4"VITON72005490/1037476NAVAL BRASSALUMINIUM
8203252352ALUMINIUM3/4"CAST IRON31/2"VITON72005590/1050276NAVAL BRASSALUMINIUM
820325H2352HALUMINIUM3/4"CAST IRON33/4"VITON72005590/1050276NAVAL BRASSALUMINIUM
8203262362ALUMINIUM1"CAST IRON31/2"VITON72005690/1064876NAVAL BRASSALUMINIUM
820326H2362HALUMINIUM1"CAST IRON33/4"VITON72005690/1064876NAVAL BRASSALUMINIUM
8203272372ALUMINIUM1"CAST IRON31/2"VITON72005790/1082676NAVAL BRASSALUMINIUM
820327H2372HALUMINIUM1"CAST IRON33/4"VITON72005790/1082676NAVAL BRASSALUMINIUM

Performance

The following table give typical examples of cooler performance at specified oil and water flows using Viscosity Grade 37 oil at an inlet temperature of 60°C with a water supply temperature of 20°C. This is for general cooler selection only; performance curves are also provided for more accurate selection. If you require help with cooler selection please contact the Thermex Sales Team.

Where sea water is the cooling medium, the water flow rate should be controlled to fall within the limits shown in the following table. Prolonged use with polluted harbour or estuary water outside these flow limits may result in tube failure.

Part NumberSeries NumberHeat Dissipation kWOil Flow Rate litre/minuteOil Pressure DropWater Flow litre/minuteHead LossWater Flow
kPaBarkPaBarMin: litres/minuteMax: litres/minute
82032123123.640400.48.010.012045
820321H2312H3.640400.48.010.012045
82032223226.050600.68.010.012045
820322H2322H6.050600.68.010.012045
82032323321065500.513.030.032045
820323H2332H1065500.513.030.032045
82032423421580800.816.050.052045
820324H2342H1580800.816.050.052045
82032523521990600.619.080.082045
820325H2352H1990600.619.080.082045
820326236224100900.921.0130.132045
820326H2362H24100900.921.0130.132045
8203272372311201201.224.0150.152045
820327H2372H311201201.224.0150.152045

Performance Curves

Thermex Performance curves 2300 Series Hydraulic Oil Coolers

Installation

The illustration shows the correct position of the oil and water connections for horizontal and vertical mounting to ensure coolers operate full of water. The cooler is usually mounted in the system return line or drain line to tank and the water should be connected in counter flow to the oil flow. Long lengths of unsupported pipe or excessive pipe vibration should be avoided and where there are extreme fluctuations in flow or pressure it may be advisable to mount the cooler ‘off-line’ with its own recirculating pump. A check valve to by-pass oil across the cooler under cold starting conditions is recommended especially for oil with a high viscosity.

Hydraulic Oil Coolers Installation

2500 Series Overview

Models

Part NumberSeries NumberA (mm)B (mm)C (mm)D (BSP)E (BSP)F (mm)G (mm)H (mm)Weight (Kg)Oil Volume (Litres)Water Volume (Litres)
8205212512291129751"1"14716176101.41.4
820521H2512H291129751"1 1/2"14716176101.41.4
82052225223771991611 1/4"1"14716176121.91.7
820522H2522H3771991611 1/4"1 1/2"14716176121.91.7
82052325324752972591 1/4"1"14716176132.52.1
820523H2532H4752972591 1/4"1 1/2"14716176132.52.1
82052425426034253871 1/4"1"14716176143.52.6
820524H2542H6034253871 1/4"1 1/2"14716176143.52.6
82052525527495715331 1/2"1"14716176174.53.2
820525H2552H7495715331 1/2"1 1/2"14716176174.53.2
82052625629277497111 1/2"1"14716176205.83.9
820526H2562H9277497111 1/2"1 1/2"14716176205.83.9
820527257211299519131 1/2"1"14716176237.34.8
820527H2572H11299519131 1/2"1 1/2"14716176237.34.8
82052825821381120311651 1/2"1"14716176279.05.8
820528H2582H1381120311651 1/2"1 1/2"14716176279.05.8
82052925921727154915111 1/2"1"147161763211.57.2
820529H2592H1727154915111 1/2"1 1/2"147161763211.57.2

Dimensions

2500 Schematic

Specifications

Part NumberSeries NumberBody MaterialBody Port (BSPT)Header MaterialTube Pass (Cold Side)Header Port (BSPT)O Ring MaterialTube Stack Part NumberTube Stack MaterialTube Stack LengthTube Plate ØTube Plate MaterialBaffle Material
8205212512ALUMINIUM1"CAST IRON31"VITON72015190/10190125NAVAL BRASSALUMINIUM
820521H2512HALUMINIUM1"CAST IRON31 1/2"VITON72015190/10190125NAVAL BRASSALUMINIUM
8205222522ALUMINIUM1 1/4"CAST IRON31"VITON72015290/10276125NAVAL BRASSALUMINIUM
820522H2522HALUMINIUM1 1/4"CAST IRON31 1/2"VITON72015290/10276125NAVAL BRASSALUMINIUM
8205232532ALUMINIUM1 1/4"CAST IRON31"VITON72015390/10374125NAVAL BRASSALUMINIUM
820523H2532HALUMINIUM1 1/4"CAST IRON31 1/2"VITON72015390/10374125NAVAL BRASSALUMINIUM
8205242542ALUMINIUM1 1/4"CAST IRON31"VITON72015490/10502125NAVAL BRASSALUMINIUM
820524H2542HALUMINIUM1 1/4"CAST IRON31 1/2"VITON72015490/10502125NAVAL BRASSALUMINIUM
8205252552ALUMINIUM1 1/2"CAST IRON31"VITON72015590/10648125NAVAL BRASSALUMINIUM
820525H2552HALUMINIUM1 1/2"CAST IRON31 1/2"VITON72015590/10648125NAVAL BRASSALUMINIUM
8205262562ALUMINIUM1 1/2"CAST IRON31"VITON72015690/10826125NAVAL BRASSALUMINIUM
820526H2562HALUMINIUM1 1/2"CAST IRON31 1/2"VITON72015690/10826125NAVAL BRASSALUMINIUM
8205272572ALUMINIUM1 1/2"CAST IRON31"VITON72015790/101028125NAVAL BRASSALUMINIUM
820527H2572HALUMINIUM1 1/2"CAST IRON31 1/2"VITON72015790/101028125NAVAL BRASSALUMINIUM
8205282582ALUMINIUM1 1/2"CAST IRON31"VITON72015890/101280125NAVAL BRASSALUMINIUM
820528H2582HALUMINIUM1 1/2"CAST IRON31 1/2"VITON72015890/101280125NAVAL BRASSALUMINIUM
8205292592ALUMINIUM1 1/2"CAST IRON31"VITON72015990/101629125NAVAL BRASSALUMINIUM
820529H2592HALUMINIUM1 1/2"CAST IRON31 1/2"VITON72015990/101629125NAVAL BRASSALUMINIUM

Performance

The following table give typical examples of cooler performance at specified oil and water flows using Viscosity Grade 37 oil at an inlet temperature of 60°C with a water supply temperature of 20°C. This is for general cooler selection only; performance curves are also provided for more accurate selection. If you require help with cooler selection please contact the Thermex Sales Team.

Where sea water is the cooling medium, the water flow rate should be controlled to fall within the limits shown in the following table. Prolonged use with polluted harbour or estuary water outside these flow limits may result in tube failure.

Part NumberSeries NumberHeat Dissipation kWOil Flow Rate litre/minuteOil Pressure DropWater Flow litre/minuteHead LossWater Flow
kPaBarkPaBarMin: litres/minuteMax: litres/minute
820521251217120600.63010.0150120
820521H2512H17120600.63010.0150120
820522252225140700.74020.0250120
820522H2522H25140700.74020.0250120
820523253232160600.64540.0450120
820523H2532H32160600.64540.0450120
820524254242180900.95060.0650120
820524H2542H42180900.95060.0650120
820525255251200800.860100.150120
820525H2552H51200800.860100.150120
8205262562682201001.070170.1750120
820526H2562H682201001.070170.1750120
820527257285250800.887300.350120
820527H2572H85250800.887300.350120
82052825821102801101.1120650.6550120
820528H2582H1102801101.1120650.6550120
82052925921353001701.7120750.7550120
820529H2592H1353001701.7120750.7550120

Performance Curves

Thermex Performance curves 2500 Series Hydraulic Oil Coolers

Installation

The illustration shows the correct position of the oil and water connections for horizontal and vertical mounting to ensure coolers operate full of water. The cooler is usually mounted in the system return line or drain line to tank and the water should be connected in counter flow to the oil flow. Long lengths of unsupported pipe or excessive pipe vibration should be avoided and where there are extreme fluctuations in flow or pressure it may be advisable to mount the cooler ‘off-line’ with its own recirculating pump. A check valve to by-pass oil across the cooler under cold starting conditions is recommended especially for oil with a high viscosity.

Hydraulic Oil Coolers Installation

2700 Series Overview

Model

Part NumberSeries NumberA (mm)B (mm)C (mm)D (BSP)E (BSP)F (mm)G (mm)H (mm)Weight (Kg)Oil Volume (Litres)Water Volume (Litres)
81072127126503263062"2"216230125385.55.0
81072227227964724522"2"216230125437.06.0
81072327329746506302"2"216230125489.07.5
810724274211768508322"2"2162301255511.09.0
81072527521428110410842"2"2162301256314.010.5
81072627621777145314332"2"2162301257417.513.0

Dimensions

2700 Schematic

Specifications

Part NumberSeries NumberBody MaterialBody Port (BSPT)Header MaterialTube Pass (Cold Side)Header Port (BSPT)O Ring MaterialTube Stack Part NumberTube Stack MaterialTube Stack LengthTube Plate ØTube Plate MaterialBaffle Material
8107212712ALUMINIUM2"CAST IRON32"VITON72050190/10502160NAVAL BRASSALUMINIUM
8107222722ALUMINIUM2"CAST IRON32"VITON72050290/10648160NAVAL BRASSALUMINIUM
8107232732ALUMINIUM2"CAST IRON32"VITON72050390/10826160NAVAL BRASSALUMINIUM
8107242742ALUMINIUM2"CAST IRON32"VITON72050490/101028160NAVAL BRASSALUMINIUM
8107252752ALUMINIUM2"CAST IRON32"VITON72050590/101280160NAVAL BRASSALUMINIUM
8107262762ALUMINIUM2"CAST IRON32"VITON72050690/101629160NAVAL BRASSALUMINIUM

Performance

The following table give typical examples of cooler performance at specified oil and water flows using Viscosity Grade 37 oil at an inlet temperature of 60°C with a water supply temperature of 20°C. This is for general cooler selection only; performance curves are also provided for more accurate selection. If you require help with cooler selection please contact the Thermex Sales Team.

Where sea water is the cooling medium, the water flow rate should be controlled to fall within the limits shown in the following table. Prolonged use with polluted harbour or estuary water outside these flow limits may result in tube failure.

Part NumberSeries NumberHeat Dissipation kWOil Flow Rate litre/minuteOil Pressure DropWater Flow litre/minuteHead LossWater Flow
kPaBarkPaBarMin: litres/minuteMax: litres/minute
810721271292340500.5170180.18100210
81072227221243601001.0180230.23100210
8107232732140380800.8190290.29100210
81072427421754001201.2200370.37100210
81072527522084201601.6210460.46100210
81072627622414401801.8220590.59100210

Performance Curves

Thermex Performance curves 2700 Series Hydraulic Oil Coolers

Installation

The illustration shows the correct position of the oil and water connections for horizontal and vertical mounting to ensure coolers operate full of water. The cooler is usually mounted in the system return line or drain line to tank and the water should be connected in counter flow to the oil flow. Long lengths of unsupported pipe or excessive pipe vibration should be avoided and where there are extreme fluctuations in flow or pressure it may be advisable to mount the cooler ‘off-line’ with its own recirculating pump. A check valve to by-pass oil across the cooler under cold starting conditions is recommended especially for oil with a high viscosity.

Hydraulic Oil Coolers Installation

2800 Series Overview

Model

Part NumberSeries NumberA (mm)B (mm)C (mm)D (BSP)E (BSP)F (mm)G (mm)H (mm)Weight (Kg)Oil Volume (Litres)Water Volume (Litres)
81082128126843263063"2 1/2"262275150489.07.5
81082228228304724523"2 1/2"2622751505411.59.0
810823283210086506303"2 1/2"2622751506215.010.5
810824284212108528323"2 1/2"2622751507118.513.0
81082528521462 110410843"2 1/2"2622751508223.015.5
81082628621811 145314333"2 1/2"2622751509729.519.0

Dimensions

2800 Schematic

Specifications

Part NumberSeries NumberBody MaterialBody Port (BSPT)Header MaterialTube Pass (Cold Side)Header Port (BSPT)O Ring MaterialTube Stack Part NumberTube Stack MaterialTube Stack LengthTube Plate ØTube Plate MaterialBaffle Material
8108212812ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080190/10502200NAVAL BRASSALUMINIUM
8108222822ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080290/10648200NAVAL BRASSALUMINIUM
8108232832ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080390/10826200NAVAL BRASSALUMINIUM
8108242842ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080490/101028200NAVAL BRASSALUMINIUM
8108252852ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080590/101280200NAVAL BRASSALUMINIUM
8108262862ALUMINIUM3" BSPCAST IRON32 1/2"VITON72080690/101629200NAVAL BRASSALUMINIUM

Performance

The following table give typical examples of cooler performance at specified oil and water flows using Viscosity Grade 37 oil at an inlet temperature of 60°C with a water supply temperature of 20°C. This is for general cooler selection only; performance curves are also provided for more accurate selection. If you require help with cooler selection please contact the Thermex Sales Team.Where sea water is the cooling medium, the water flow rate should be controlled to fall within the limits shown in the following table. Prolonged use with polluted harbour or estuary water outside these flow limits may result in tube failure.

Part NumberSeries NumberHeat Dissipation kWOil Flow Rate litre/minuteOil Pressure DropWater Flow litre/minuteHead LossWater Flow
kPaBarkPaBarMin: litres/minuteMax: litres/minute
8108212812124460400.4230160.16140300
8108222822168490700.7245200.2140300
8108232832193520600.6260260.26140300
8108242842240550800.8275330.33140300
81082528522885801001.0290420.42140300
81082628623396101101.1305540.54140300

Performance Curves

Thermex Performance curves 2700 Series Hydraulic Oil Coolers

Installation

The illustration shows the correct position of the oil and water connections for horizontal and vertical mounting to ensure coolers operate full of water. The cooler is usually mounted in the system return line or drain line to tank and the water should be connected in counter flow to the oil flow. Long lengths of unsupported pipe or excessive pipe vibration should be avoided and where there are extreme fluctuations in flow or pressure it may be advisable to mount the cooler ‘off-line’ with its own recirculating pump. A check valve to by-pass oil across the cooler under cold starting conditions is recommended especially for oil with a high viscosity.Hydraulic Oil Coolers Installation

Industry Sectors

Driving Global Performance
Committed to safety & quality in a diverse range of industrial applications

Drawing from extensive industry experience in heating and cooling technology, Thermex's high performance Hydraulic Oil Coolers provide cost effective, energy efficient solutions in the following applications:

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