3M 740B30 manual Performance Data, Product Specifications

Performance Data

Loading Capacity

Product Number	742B	743B	744B	745B	746B	747B	748B	749B
Pounds at 30 gpm	8.9	13.4	13.3	13.3	13.7	16.1	17.3	17.5
Kilograms at 7 cu m/hr	4.0	6.1	6.0	6.0	6.2	7.3	7.8	7.9

Loading: The data above shows typical loading capacities of the different micron rated filters. Loading capacity is determined by challenging a filter with a dispersion of silica test dust in water at the recommended flow rate. Pressure drop is monitored and testing is terminated at 50 psid (3.4 bar). (742B is terminated at 35 psid– 2.4 bar.) The loading capacity reported is the dry weight gain of the cartridge.

Particle Removal Efficiency (microns)

Product Number	742B	743B	744B	745B	746B	747B	748B	749B
Efficiency @ 99%	1	2	5	10	15	25	40	70
Efficiency @ 95%	0.9	1.1	2.5	8	9	13	24	43
Efficiency @ 90%	0.8	0.9	1.7	6	8	10	19	35
Efficiency @ 75%	<0.7	0.7	1.5	3.5	6	8	13	24
Efficiency @ 50%	<0.7	<0.7	1.1	1.5	4.0	4.5	8	14

Efficiency: The 3M™ High Flow Filter Cartridges are rated using a silica test challenge in water at 30 gpm (6.8 cu m/hr). The results reported are typical initial efficiencies taken within ten minutes of the start of the test. For more information on how 3M conducts its filter efficiency testing, please contact Filtration Products Technical Service at 1-800-648-3550 .

Clean Pressure Drop Versus Flow Rate (psid)

Product Number	742B	743B	744B	745B	746B	747B	748B	749B
∆p @ 10 gpm	0.3	0.2	0.1	0.1	0.1	0.05	0.05	0.04
∆p @ 20 gpm	0.7	0.5	0.2	0.2	0.1	0.11	0.10	0.08
∆p @ 30 gpm	1.0	0.9	0.4	0.3	0.2	0.21	0.18	0.15
∆p @ 40 gpm	1.3	1.1	0.6	0.4	0.4	0.30	0.25	0.20

Pressure Drop: The 3M High Flow Filter Cartridges have low initial pressure drop (∆p) in water as the chart indicates. The chart does not include the pressure drop of the vessel.

Product Specifications

Micron Ratings:

Product	Initial
Number	Efficiency
742B30	1 micron @ 99%
743B30	2 micron @ 99%
744B30	5 micron @ 99%
745B30	10 micron @ 99%
746B30	15 micron @ 99%
747B30	25 micron @ 99%
748B30	40 micron @ 99%
749B30	70 micron @ 99%

Dimensions (Nominal):

Outer Diameter:
6.5 inches	16.5 cm
Inside Diameter:
1.6 inches	4 cm
Length:
28.75 inches	73.0 cm
226 O-ring Inside Diameter:
2 inches	5 cm
226 O-ring Thickness:
0.14 inches	0.35 cm

Operating Condition:

Maximum Operating Temperature:

160F		70C
Recommended Flow: (in water)
30 gpm		6.8 cu m/hr
Suggested Maximum Flow: (in water)
742B30-743B30 – 45 gpm		10 cu m/hr
744B30-749B30 – 60 gpm		14 cu m/hr
Suggested Maximum Differential Pressure:
742B30	35 psid	2.4 bar
743B30 - 749B30	50 psid	3.4 bar

Disposal of used filters must comply with applicable federal, state and local laws and regulations.

Order Information

To order contact your local 3M Filtration Products distributor or call toll free 1-800-648-3550.

IMPORTANT NOTICE: The information in this literature is based on tests 3M believes are reliable. It is not and should not be relied on as a product or technical specification. 3M does not guarantee the accuracy of this information. If any 3M products described in this literature are defective in material or workmanship, 3M will replace them at no charge. THERE ARE NO OTHER WARRANTIES FOR THESE PRODUCTS, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. This

warranty does not apply to damage or defects resulting from improper use, storage or maintenance of these products. User must determine whether the 3M products described in this literature are fit for a particular purpose, suitable for user’s application and meet user’s performance expectations. 3M IS NOT LIABLE FOR ANY LOSS OR DAMAGES, WHETHER DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL, ARISING OUT OF THE USE OF OR INABILITY TO USE ANY OF THESE PRODUCTS REGARDLESS OF LEGAL THEORY.

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