BNZ Series Water-Oil Coolers
- Compact size – “Shell and Tube Design”
- Low pressure drop – high efficiency
- Heat removal up to 400 hp [295 kW]
- Oil flow rates up to 105 GPM [400 l/min]
Resources
Leveraging advanced fin shell and tube technology, the Lovejoy BNZ Series water-oil cooler provides industry leading cooling efficiency within a very small footprint.
To select the optimal cooler for your specific application, please download the BNZ Cooler Catalog or contact Lovejoy customer service.
BNZ Series Water-Oil Coolers Additional Resources
Key Features
- Compact size – “Shell and Tube Design”
- Extended cooling surface
- Low pressure drop – high efficiency
- Heat removal up to 600 hp [500 kW]
- Oil flow rates up to 225 GPM [850 l/min]
- Removable end caps for easy cleaning
- Close-tolerance port face locations
- Interchangeable with Thermal Transfer EK series
- 100% pressure tested, leak-free performance
- Design flexibility
- Three standard frame sizes to choose (BNZ 60, 80 and 125)
- 1, 2, and 4 pass cooling liquid options available
- Customized lengths available
- NPT, SAE, BSPP and flange port options
- Mounting may be rotated in 90 degree increments
- Optional materials for increased corrosion protection
Please download catalog for dimensional and sizing data for imperial (US) units. For metric unit products, please call Lovejoy customer service or visit R+L Hydraulics for our latest product catalog. Additionally, Lovejoy Engineering is ready to help you size a cooler using our proprietary cooler sizing software.
Should you have a problem finding a Lovejoy Hydraulics distributor in your area, please contact a Lovejoy sales representative or ask your current Lovejoy Power Transmission distributor to start carrying and supporting the new products!
The BNZ design consists of an outer housing shell and a tube / fin bundle known as a “stack”, which fits inside the shell. Hydraulic fluid to be cooled is circulated through the housing shell and passes across the cooling fins, which transfers the heat to the cooling tubes in the stack. Cooling fluid, typically water or water-glycol, flows through the cooling tubes running through the stack to carry the absorbed heat away. This rugged design offers high heat removal in a compact package. A large variety of cooling capacity sizes, port options and material choices are available to tailor the optimum cooler to meet specific application needs.
Materials
|
Component |
Standard |
Sea Water |
Optional |
|
Tubes |
Cu |
CuNi 90/10 |
Copper/Stainless Steel |
|
Shell, guide |
Steel |
Steel |
– |
|
End Cover |
Cast Iron GG25 |
Electroless |
Stainless Steel 1.4408 |
|
Fins |
Aluminum |
Aluminum |
Copper/Stainless Steel |
|
Tube Sheet |
Steel |
Steel with CuNi |
Stainless Steel |
|
Gaskets |
Flat Gaskets |
– |
– |
|
|
Shell Side |
Tube Side (Water) |
||||||
|
|
(Oil) |
1-pass CU |
2-pass CU |
4-pass CU |
||||
|
Series |
GPM |
l/min |
GPM |
l/min |
GPM |
l/min |
GPM |
l/min |
|
BNZ 60 |
20 |
75 |
12.4 |
47 |
6.1 |
23 |
– |
– |
|
BNZ 80 G*/F* |
59 |
225 |
23.8 |
90 |
11.9 |
45 |
5.8 |
22 |
|
BNZ 125 G* |
87 |
330 |
54.4 |
206 |
27.2 |
103 |
13.5 |
51 |
|
BNZ 125 F* |
106 |
400 |
54.4 |
206 |
27.2 |
103 |
13.5 |
51 |
-
G* indicates: Cooler with SAE O-Ring ports or metric BSPP ports
-
F* indicates: Cooler with Flange ports.
-
CU is Copper tube material.
-
Copper Nickel and Stainless Steel tube material available for corrosive fluids. For more information, please contact your Lovejoy Sales Representative.
-
For sea water application: water volume should be reduced. Please contact Lovejoy Technical Engineering
Please Note: CAD Files below can only be opened using a CAD Program.
The UPC numbers listed in this table have a prefix of 8452710
For additional documentation (in PDF form), please download the BNZ Cooler Catalog or contact Lovejoy customer service.
|
Series Number |
1 Pass |
2 Pass |
4 Pass |
|
BNZ 60-131 |
N/A | ||
|
BNZ 60-208 |
N/A | ||
|
BNZ 60-259 |
N/A | ||
|
BNZ 60-310 |
N/A | ||
|
BNZ 60-361 |
N/A | ||
|
BNZ 60-463 |
N/A | ||
|
BNZ 60-615 |
N/A | ||
|
BNZ 60-920 |
N/A | ||
|
BNZ 80-208 |
|||
|
BNZ 80-310 |
|||
|
BNZ 80-361 |
|||
|
BNZ 80-463 |
|||
|
BNZ 80-615 |
|||
|
BNZ 80-920 |
|||
|
BNZ 125-310 |
|||
|
BNZ 125-361 |
|||
|
BNZ 125-463 |
|||
|
BNZ 125-615 |
|||
|
BNZ 125-920 |
|||
|
BNZ 125-1225 |