Wolverine Tube - Turbo-BII

· Alloys Available and
Applicable Standards

UNS C12200 (DHP Copper) to ASME SB75 and ASME SB359

· Product Formats

Straight Lengths to 20 feet, + 1/8 inch maximum variation

Straight Lengths over 20 feet, + 5/32 inch maximum variation

Ends are supplied either brush deburred or chamfered

· Packaging

Packaging options include wooden boxes and shipping frames.

· Tempers Available

As fabricated temper

· Testing

All tubes are tested per the requirements of ASTM E243.

Where there is a need for a low ID pressure drop, several sizes are available in Turbo-BII. This is accomplished by reducing the ID ridge height. It may also be supplied with a smooth bore.

ID/OD Enhanced Surface for Improved Boiling Heat Transfer

Turbo-BII is a more efficient version of Turbo-B and is designed for light hydrocarbon boiling. The tube is configured in variations for both high pressure and low pressure refrigerant applications. The integral helical fins on the outside of the tube are modified to enhance the initiation of nucleate boiling sites, thus improving the over all heat transfer coefficient. The inside heat transfer coefficient is improved because of increased some

surface area and turbulation induced by integral helical ridges on the inside surface. The availability of plain ends and intermediate lands makes Turbo-BII suitable for shell and tube evaporators.

The increased ID ridge count improves the overall heat transfer efficiency of Turbo-BII over Turbo-B, while slightly increasing the ID pressure drop.

Standard Sizes			Plain End Dimensions		Finned Section Dimensions
Catalog Number	Outside Diameter inch (mm)	Nominal Wall inch (mm)	Outside Diameter inch (mm)	Wall inch (mm)	Fin Per Inch	Finished Fin OD inch (mm)	Min. Wall Under Fins inch (mm)	Root Diameter inch (mm)
Turbo-BII High Pressure - UNS C12200
55-5050025	3/4 (19.05)	0.025 (0.635)	0.743 (18.87)	0.049 (1.24)	48	0.736 (18.69)	0.022 (0.559)	0.682 (17.32)
55-5050028	3/4 (19.05)	0.028 (0.711)	0.743 (18.87)	0.052 (1.31)	48	0.741 (18.82)	0.025 (0.635)	0.686 (17.42)
55-5050035	3/4 (19.05)	0.035 (0.889)	0.748 (19.00)	0.058 (1.47)	48	0.736 (18.69)	0.031 (0.787)	0.680 (17.27)
55-5059028	3/4 (19.05)	0.028 (0.711)	0.748 (19.00)	0.047 (1.19)	48	0.741 (18.82)	0.025 (0.635)	0.686 (17.42)
55-5059035	3/4 (19.05)	0.035 (0.889)	0.743 (18.87)	0.053 (1.35)	48	0.741 (18.82)	0.031 (0.787)	0.686 (17.42)
55-5070025	1 (25.40)	0.025 (0.635)	0.995 (25.27)	0.055 (1.40)	48	0.976 (24.79)	0.022 (0.559)	0.918 (23.32)
55-5070028	1 (25.40)	0.028 (0.711)	0.995 (25.27)	0.058 (1.47)	48	0.976 (24.79)	0.025 (0.635)	0.918 (23.32)
55-5070035	1 (25.40)	0.035 (0.889)	0.995 (25.27)	0.065 (1.65)	49	0.977 (24.82)	0.031 (0.635)	0.922 (23.42)
Turbo-BII Low Pressure - UNS C12200
55-5050125	3/4 (19.05)	0.025 (0.635)	0.743 (18.87)	0.051 (1.30)	48	0.738 (18.75)	0.022 (0.559)	0.680 (17.27)
55-5050128	3/4 (19.05)	0.028 (0.711)	0.743 (18.87)	0.054 (1.36)	48	0.741 (18.82)	0.025 (0.635)	0.684 (17.37)
55-5050135	3/4 (19.05)	0.035 (0.889)	0.743 (18.87)	0.060 (1.52)	48	0.738 (18.75)	0.031 (0.787)	0.680 (17.27)
55-5058128	3/4 (19.05)	0.028 (0.711)	0.743 (18.87)	0.055 (1.38)	48	0.744 (18.90)	0.025 (0.635)	0.684 (17.37)
55-5058135	3/4 (19.05)	0.035 (0.889)	0.743 (18.87)	0.060 (1.52)	48	0.738 (18.75)	0.031 (0.787)	0.680 (17.27)
55-5059128	3/4 (19.05)	0.028 (0.711)	0.743 (18.87)	0.048 (1.22)	48	0.738 (18.75)	0.025 (0.635)	0.686 (17.42)
55-5059135	3/4 (19.05)	0.035 (0.889)	0.748 (19.00)	0.056 (1.41)	48	0.739 (18.77)	0.031 (0.787)	0.686 (17.42)

Standard Sizes		Inside Dimensions		Areas
Catalog Number	Weight Per Unit Length lb/ft (kg/m)	Nominal Inside Diameter inch (mm)	Nominal Ridge Height inch (mm)	Nominal Inside Surface Area ft²/ft (m²/m)	Actual Inside Surface Area ft²/ft (m²/m)	Nominal Outside Surface Area ft²/ft (m²/m)	Actual Inside Cross Sect. Area in² (mm²)
Turbo-BII High Pressure - UNS C12200
55-5050025	0.384 (0.571)	0.632 (16.05)	0.014 (0.356)	0.165 (0.050)	0.263 (0.080)	0.192 (0.059)	0.300 (193.5)
55-5050028	0.405 (0.603)	0.632 (16.05)	0.014 (0.356)	0.165 (0.050)	0.263 (0.080)	0.192 (0.059)	0.300 (193.5)
55-5050035	0.457 (0.680)	0.612 (15.54)	0.011 (0.279)	0.160 (0.049)	0.235 (0.072)	0.192 (0.059)	0.283 (182.6)
55-5059028	0.372 (0.554)	0.632 (16.05)	N/A	0.165 (0.050)	0.165 (0.050)	0.192 (0.059)	0.314 (202.6)
55-5059035	0.413 (0.615)	0.620 (15.75)	N/A	0.160 (0.049)	0.160 (0.049)	0.192 (0.059)	0.295 (190.3)
55-5070025	0.566 (0.843)	0.866 (22.00)	0.018 (0.457)	0.227 (0.069)	0.351 (0.107)	0.260 (0.079)	0.565 (364.5)
55-5070028	0.675 (1.004)	0.862 (21.89)	0.018 (0.457)	0.226 (0.069)	0.349 (0.106)	0.260 (0.079)	0.559 (360.6)
55-5070035	0.671 (0.999)	0.852 (21.64)	0.016 (0.406)	0.223 (0.068)	0.333 (0.102)	0.260 (0.079)	0.548 (353.5)
Turbo-BII Low Pressure - UNS C12200
55-5050125	0.384 (0.571)	0.632 (16.05)	0.014 (0.356)	0.165 (0.050)	0.263 (0.080)	0.192 (0.059)	0.300 (193.5)
55-5050128	0.405 (0.603)	0.632 (16.05)	0.013 (0.330)	0.165 (0.050)	0.263 (0.080)	0.192 (0.059)	0.300 (193.5)
55-5050135	0.457 (0.680)	0.612 (15.54)	0.011 (0.279)	0.160 (0.049)	0.235 (0.072)	0.192 (0.059)	0.283 (182.6)
55-5058128	0.410 (0.610)	0.629 (15.98)	0.013 (0.330)	0.165 (0.050)	0.255 (0.078)	0.192 (0.059)	0.298 (192.3)
55-5058135	0.457 (0.680)	0.612 (15.54)	0.011 (0.279)	0.160 (0.049)	0.235 (0.072)	0.192 (0.059)	0.283 (182.6)
55-5059128	N/A	0.632 (16.05)	N/A	0.165 (0.050)	0.165 (0.050)	0.192 (0.059)	0.314 (202.6)
55-5059135	0.427 (0.635)	0.616 (15.65)	N/A	0.161 (0.049)	0.161 (0.049)	0.192 (0.059)	0.298 (192.3)

Engineering Data
Catalog Number	Sieder and Tate² Constant STC_i	Constants used in Calculating Darcy Friction Factor¹ C D
Turbo-BII High Pressure - UNS C12200
55-5050025	0.071	0.457	0.211
55-5050028	0.071	0.457	0.211
55-5050035	0.060	0.306	0.188
55-5059028	0.027	0.316	0.250
55-5059035	0.027	0.316	0.250
55-5070025	0.070	0.457	0.211
55-5070028	N/D	N/D	N/D
55-5070035	0.058	0.453	0.222
Turbo-BII Low Pressure - UNS C12200
55-5050125	0.071	0.457	0.211
55-5050128	0.071	0.457	0.211
55-5050135	0.056	0.171	0.136
55-5058128	0.070	0.626	0.245
55-5058135	0.056	0.171	0.136
55-5059128	0.027	0.316	0.250
55-5059135	0.027	0.316	0.250