FLUID COOLING | Shell & Tube EK Series

1 FLUID COOLING | Shell & Tube EK Series Copper & Steel Construction Features Compact Size n High Efficiency Finned Bundle Design n Low Cost n Optional Patented Built-in n Surge-Cushion Relief Bypass 3/16 Tube Size n Heat Removal up to 400 Horsepower n (300 kW). Oil Flow rates up to 80 GPM (300. n Liters/min.) Cutaway view shows Large Oil Connections for Minimum n high performance copper Entering and Exiting Flow Restriction tube/aluminum fin COOLING chamber with patented SURGE- Removable End Bonnets for easy n CUSHION relief bypass valve. tube cleaning WATER COOLED EK. Mounting Brackets Designed so n that Cooler can be Rotated in 90 Materials Surge-Cushion (Option).

2 Increments Shell Steel The Surge-cushion is a protective device High Pressure Ratings n (patented) designed to internally bypass Tube Sheets Steel Complete Line of Accessories Available n Baff les Steel a portion of the oil flow during cold start conditions, or when sudden flow surges Mounting Brackets Steel temporarily exceed the maximum flow allowed Ratings Gaskets Nitrile Rubber/Cellulose Fiber for a given cooler. This device may replace an Nameplate Aluminum Foil external bypass valve, but it is not intended to Operating Pressure/ Shell side 500 psi bypass the total oil flow. Tubes Copper Operating Pressure/Tubeshell side 150 psi Fins Aluminum Maximum Flow Rates Operating Temperature 250 F.

3 End Caps Grey Iron Shell Tube Side GPM. Unit Side One Two Four Size GPM Pass Pass Pass 500 20 13 6 N/A. 700 60 24 12 6. 1000 80 56 28 14. Incorrect installation can cause premature failure. How to Order . Model Model Size Baff le Tubeside Surge COOLING Tube End Bonnet Series Selected Spacing Passes Cushion Material Material EK EK-1036 0 - One Pass Blank - No Relief Blank - Copper Blank - Cast Iron EKS & EK-1048 T - Two Pass Bypass CN - CuNi NP - Electroless EKM Models Only F - Four Pass R - Relief Bypass Nickel Plate EK. EKF. EKFM. EK = NPT Oil connections; NPT Water connections. EKS = SAE O-Ring Oil connections; NPT Water connections.

4 EKM = BSPP Oil connections; BSPP Water connections. EKF = SAE 4 Bolt Flange (Tapped SAE) Oil connections; NPT Water connections. EKFM = SAE 4 Bolt Flange (Tapped Metric) Oil connections; BSPP Water connections. 72 Dimensions One Pass A FLANGE 1-1/2 2. X Flange SIZE. Size 1-1/2 2. F G X X M Z (4 PLACES). Y Y Y N EKF Z 1/2 - 13 UNC-2B. EKF Z 1/2 - 13 UNC-28. EKFM Z M-12. EKFM Z M-12. E C. D. L J. H K B. C L M N. A B NPT / BSPP SAE D E F G H J K NPT SAE SAE NPT. NPT. MODEL SAE O-RING FLANGE BSPP O-RING FLANGE BSPP BSPP. EK-505 1/2 #8 3/4-16 1/2. WATER COOLED EK. UNF-2B. EK-508 .34. EK-510 x #12 N/A. EK-512 MAX. N/A N/A 3/4 3/4 3/4.

5 DIA..62 11/16-12. EK-514 WIDTH SLOT UN-2B. EK-518 EK-524 EK-536 EK-708 .44. EK-712 x EK-714 MAX. 11/2 11/2 11/4. DIA..75. EK-718 WIDTH SLOT #24. EK-724 17/8-12. EK-736 1/4 UN-2B 11/2. EK-1012 EK-1014 .44. EK-1018 x MAX. 2 2 11/2. EK-1024 DIA. WIDTH. EK-1036 SLOT. EK-1048 NOTE: We reserve the right to make reasonable design changes without notice. All dimensions are in inches. EK. 73. Dimensions Two Pass X Flange A Size 1-1/2 2. F G X Z (4 PLACES) Y. M P Y N EKF Z 1/2 - 13 UNC-28. EKFM Z M-12. C. E. D. L. J. H K B. C L M N. A B NPT / BSPP SAE D E F G H J K NPT SAE SAE NPT P. NPT. O-RING FLANGE BSPP. WATER COOLED EK.

6 MODEL SAE O-RING FLANGE BSPP BSPP. EK-505 1/2 #8 3/4-16 1/2. UNF-2B. EK-508 EK-510 .34. #12. EK-512 x 3/8 MAX. N/A N/A 3/4 11/16-12 N/A 3/4. EK-514 DIA..62. WIDTH UN-2B. EK-518 SLOT. EK-524 EK-536 EK-708 EK-712 .44. EK-714 x 3/4 MAX. 11/2 11/2. EK-718 DIA..75. WIDTH. EK-724 SLOT. #24. EK-736 1/4 17/8-12 11/2. EK-1012 UN-2B. EK-1014 .44. EK-1018 x MAX. EK-1024 DIA. 2 2. WIDTH. EK-1036 SLOT. EK-1048 NOTE: We NOTE: We reserve reserve the the right right to to make make reasonable reasonable design design changes changes without without notice. notice. All All dimensions dimensions are are inin inches. inches. EK. 74 Dimensions Four Pass X Flange A Size 1-1/2 2.

7 F G. M Z (4 PLACES) Y X P. Y N. EKF Z 1/2 - 13 UNC-28. R. EKFM Z M-12. E C. D. L J. H K B. C L M N. A B NPT / BSPP SAE D E F G H J K NPT SAE SAE NPT P R. WATER COOLED EK. MODEL SAE O-RING FLANGE BSPP NPT O-RING FLANGE BSPP BSPP. EK-708 EK-712 .44. EK-714 MAX. x 11/2 11/2 1/2 .70. EK-718 WIDTH DIA..75. EK-724 SLOT. #24. EK-736 1/4 17/8-12 11/2. EK-1012 UN-2B. EK-1014 .44. EK-1018 MAX. x 2 2 3/4 .89. EK-1024 WIDTH DIA. EK-1036 SLOT. EK-1048 NOTE: We reserve the right to make reasonable design changes without notice. All NOTE: All dimensions dimensions are are in in inches. inches. EK. 75. Selection Procedure Performance Curves are based on 100 SSU oil leaving the cooler 40 F OIL VISCOSITY CORRECTION MULTIPLIERS.

8 Higher than the incoming water temperature (40 F approach temperature). 5. Step 1 Determine the Heat Load. This will vary with different systems, 4. but typically coolers are sized to remove 25 to 50% of the input B. nameplate horsepower. (Example: 100 HP Power Unit x .33 = 33. HP Heat load.) 3. If BTU/Hr. is known: HP = BTU/Hr 2545 VISCOSITY CORRECTION. Step 2 Determine Approach Temperature. 2. Desired oil leaving cooler F Water Inlet temp. F = Actual Approach Step 3 Determine Curve Horsepower Heat Load. Enter the A. information from above: HP heat load x 40 x Viscosity = Curve 1. Actual Approach Correction A Horsepower.

9 9..8. Step 4 Enter curves at oil flow through cooler and curve horsepower..7. Any curve above the intersecting point will work..6. Step 5 Determine Oil Pressure Drop from Curves. Multiply pressure drop from curve by correction factor B found on oil viscosity .5. 50 60 70 80 90100 150 200 250 300 400 500. correction curve. OIL VISCOSITY - SSU. WATER COOLED EK. l = 5 PSI; n = 10 PSI; s = 20 PSI. Oil Temperature Oil coolers can be selected by using entering or leaving oil tempertures. Typical operating temperature ranges are: Hydraulic Motor Oil 110 F - 130 F. Hydrostatic Drive Oil 130 F - 180 F. Lube Oil Circuits 110 F - 130 F.

10 Automatic Transmission FLUID 200 F - 300 F. Desired Reservoir Temperature Return Line COOLING : Desired temperature is the oil temperature leaving the cooler. This will be the same temperature that will be found in the reservoir. Off-Line Recirculation COOLING Loop: Desired temperature is the temperature entering the cooler. In this case, the oil temperature change must be determined so that the actual oil leaving temperature can be found. Calculate the oil temperature change (Oil #T) with this formula: Oil #T=(BTU's/Hr.)/GPM Oil Flow x 210). To calculate the oil leaving temperature from the cooler, use this formula: Oil Leaving Temperature = Oil Entering Temperature - Oil #T.