Product Overview | Turbo Blowers
SELECTION Pressures and volume flow at air density of 0.075* pounds per cubic foot are shown on the following pages of this bulletin. It is wise to allow some capacity safety margin when choosing a blower based on the calculated cfm requirements- unanticipated piping leaks, variation in burner capacity, changing process back pressure and other unforseen factors could cause motor overload unless there is some cushion. Without prior knowledge of leakage and other conditions, a 10% safety margin is considered minimum. It is also important to allow for pressure losses in piping, fittings and valves which reduce pressure available at the burner (or other end use). For volume flows greater than shown in the bulletin consult North American for custom selections designed to the exact requirements of the application-see "2300 Custom" section of this bulletin. Altitude, air temperature and composition affect blower ratings- pressure, capacity and horsepower. For blower selection/ performance at elevated temperature or altitude significanlty above sea level, the blower section of the North American Combustion Handbook is recommended as a guide to select FEATURES — Direct drive blowers specifically for combustion applications , which are also an excellent choice for uses such as pressurized air supply, drying, conveying and other application in process industries. — Available in singe or multiple stage designs at 1800 rpm or 3600 rpm; the Series 2300 blowers are capable of performances not achieved by any other comparable blower design. — Horsepower and impeller selection designed to achieve "flat" pressure performance curves to minimize variations over the operating range of the blower. — All 60 Hz blowers are equipped with Premium Energy Efficient Motors which meet the requirements of EISA (except units with fractional 56 frame and see Series 2300- 50 cycle for 50 Hz motor standards). — Full array of accessories includes filters, silencers, filter/ silencers, inlet and outlet adapters, flexible sleeves, inlet vane dampers, AC frequency drives, combination motor starters and fusible disconnects. These options offer the protection needed to keep operational costs down while increasing blower life expectancy.
the proper blower/motor combination. Generally standard motors can be used up to 3300 feet above sea level; special construction is recommended above 3300 feet. Do not use Series 2300 blowers above 200 degrees F. See Bulletin 2600 for applications that require operational temperatures greater than 200 degrees F. CONSTRUCTION Series 2300 blowers are available in direct drive design where the impeller is mounted on the motor shaft (AMCA Arrangement 4) for simplicity with minimal maintenance. All metal construction including mild steel, cast aluminum, or corrosion resistant stainless steel creates a nearly indestructible blower allowing for years of trouble-free service. F abricated aluminum or steel impeller designs based on lightweight aerospace technology provide significant benefits; high motor bearing life which extends the life of the overall motor; low starting inertia which allows fast starting times and hence does not require the oversized motors of some alternate designs. All Series 2300 impellers are low stress and in the case of multi-stage units significantly reduce stress by dividing pressure generation between multiple impellers. Individual impeller dynamics are assured, by either single or two plane balancing to ISO Grade 2.5, minimizing vibration and assuring longer bearing life. Completed blowers are individually tested prior to shipment to assure correct and trouble free operation.
Strategically positioned mounting locations allow for in-field rotation of casing discharge position, see page 5.
Standard shaft motors on most single stage blowers reduce replacement downtime in the field.
Inlet or outlet adapters are not included as standard supply but may be specified at an additional cost.
The oulet is available with a threaded (female) flange on blowers with 6" and smaller discharge pipe size. An SW connection is available for 8" and larger, or may be specified for smaller sizes. An SW inlet (unthreaded) for sleeve or welding connection is available. A threaded female inlet may be specified for 3" through 6" inlets. For an open inlet, an inlet guard should be specified. Blowers should not be operated without inlet protection.
Bulletin 2300 Page 2
*Air density @ 1 ATM @ 70°F. fan industry standard temperature
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