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    The BNZ Series of water - oil coolers provide an efficient way to cool hydraulic fluid utilizing shell and tube technology. The 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, being 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. For more application information, refer to the “Application Guidelines” section.
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BNZ Cooler - Multiple Pass

2-Pass Model Oil Coolers, BNZ Series

BNZ Cooler - Multiple Pass

2-Pass Model Oil Coolers, BNZ Series

BNZ Cooler - Multiple Pass

2-Pass Model Oil Coolers, BNZ Series

BNZ Cooler - Multiple Pass

2-Pass Model Oil Coolers, BNZ Series

BNZ Cooler - Multiple Pass

2-Pass Model Oil Coolers, BNZ Series
Description  N/A BNZ-60-920-2-B-OIL COOLER N/A BNZ-60-310-2-N-OIL COOLER N/A BNZ-60-208-2-S-OIL COOLER N/A BNZ-60-208-2-N-OIL COOLER N/A BNZ-60-131-2-S-OIL COOLER
Oil Port Size N/A G 3/4 N/A 3/4 NPT N/A 1-1/16-12 SAE O-Ring (-12) N/A 3/4 NPT N/A 3/4-16 SAE O-Ring (-8)
Series N/A BNZ 60-920 N/A BNZ 60-310 N/A BNZ 60-208 N/A BNZ 60-208 N/A BNZ 60-131
Model N/A 2-Pass
Type N/A Temperature Control Unit
Max. Operating Pressure - Shell Side N/A 580.00 psi40.00 bar
Max. Operating Pressure - Tube Side N/A 230.00 psi
Temperature N/A 200.00 ºF95.00 ºC
Style N/A Shell & Tube Technology
Application N/A To cool hydraulic fluid utilizing shell and tube technology
Oil Port N/A BSPP N/A NPT N/A SAE O-Ring N/A NPT N/A SAE O-Ring
Drain Plug (S) N/A G 1/8
Test Port (T) N/A
Dimension A1 N/A 36.220 in920.00 mm N/A 12.200 in310.00 mm N/A 8.190 in208.00 mm N/A 8.190 in208.00 mm N/A 5.160 in131.00 mm
Dimension B N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 2.560 in65.00 mm
Dimension C N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 3.250 in82.50 mm N/A 2.560 in65.00 mm
Dimension D N/A 31.850 in809.00 mm N/A 7.480 in199.00 mm N/A 3.820 in97.00 mm N/A 3.820 in97.00 mm N/A 2.170 in55.00 mm
Dimension E N/A 38.230 in971.00 mm N/A 14.210 in361.00 mm N/A 10.200 in259.00 mm N/A 10.200 in259.00 mm N/A 7.130 in181.00 mm
Dimension F N/A 39.440 in1002.00 mm N/A 15.430 in392.00 mm N/A 11.420 in290.00 mm N/A 11.420 in290.00 mm N/A 8.390 in213.00 mm
Dimension G N/A 2.190 in55.50 mm N/A 2.190 in55.50 mm N/A 2.190 in55.50 mm N/A 2.190 in55.50 mm N/A 1.500 in38.00 mm
Dimension H N/A
Dimension I N/A 2.500 in63.50 mm
Dimension J N/A 0.350 in9.00 mm
Dimension K N/A 3.080 in78.00 mm
Dimension L N/A 1.340 in34.00 mm
Dimension M N/A 3.540 in90.00 mm
Dimension N N/A 3.860 in98.00 mm
Dimension O N/A 1.770 in45.00 mm
Dimension P N/A 2.090 in53.00 mm
Dimension R N/A 1.250 in31.75 mm
Dimension S N/A
Dimension T N/A
Dimension U N/A 2.560 in65.00 mm
Weight N/A 20.75 lb N/A 10.76 lb N/A 9.13 lb N/A 9.13 lb N/A 7.89 lb
Surface Area N/A 31.20 ft²2.90 m² N/A 10.00 ft²0.93 m² N/A 6.40 ft²0.60 m² N/A 6.40 ft²0.60 m² N/A 3.60 ft²0.34 m²
Max. Flow Rate N/A 20.00 gal/min75.00 L/min
UPC Number N/A 3148 N/A 3164 N/A 3152 N/A 3162 N/A 3151
Tube Material N/A Copper
Shell, Guide Plate, Brackets & Bypass Valve Material N/A Steel
End Cover Material N/A Cast Iron GG25
Fin Material N/A Aluminum
Tube Sheet Material N/A Steel
Gasket Material N/A Flat Gaskets C4400
End Cap Material N/A Cast Iron (Stainless Steel Optional)
Port Housing Material N/A Cast Iron
Mounting Bracket Material N/A Steel (May Be Rotated in 90 Degree Increments)
Shell Tube Material N/A Welded Steel
Gasket Size N/A C440 (Compatible with Fluids)
Drain Plug Material N/A Steel
Cubic inches N/A 538.92394 in³ N/A 210.84169 in³ N/A 156.04745 in³ N/A 156.04745 in³ N/A 114.64432 in³