Industrial centrifugal fans, airfoil blowers, radial ventilators, high pressure fans and blowers, high temperature oven circulating plug fans; and wall / roof exhuast and air make-up fan ventilators.
Sales of industrial high pressure blowers; high temperature centrifugal plug fans and fan air-kits, radial blowers, heavy duty ventilators. Quick delivery of industrial high pressure fans and high temperature stainless steel blowers / high temperature fans for industrial air moving industrial ventilation. Buffalo Blower sales of explosion proof fan ventilators, stainless steel and FRP fibergalss centrifugal blower and radial fan ventilators. Sales of all types industrial high pressure blower fans, radial blower fans, induce draft and force draft industrial fans, blowers and ventilators.

uffalo Blower

Manufacturers and distributors of industrial, process, OEM and commercial fans, pressure blowers and centrifugal / axial ventilators.


To order call: 716-803-6578
Buffalo Fan blowers : buffaloblower








CENTRIFUGAL BLOWERS PRICE LIST


This blowers pricing is published primarily for budget estimation purposes. The fan prices include motor, drive and drive gurads, flanged inlet / outlet, but normally NO other accessories, like high temperature blower construction, special alloy or coatings, access door, drain, spark-resistant / explosion-proof fan construction, shutters or dampers, shaft seal & low leakage construction, etc...

Please call our Sales Department
(
Phone: 716-803-6578, Fax: 716-408-2070) for additional blower accessories pricing.


This Table is based on fan performance, Airflow in CFM vs. Static Pressure in inches of water column at standard air density 0.075 Lbs/cu.ft.


CFM\SP 20” WG 22” WG 24” WG 26” WG 28” WG 30” WG 34” WG 38” WG 42” WG 46” WG 50” WG 55” WG
25 CFM BSAP-50
2/3 HP, 115V
CALL
BSL2RD
1/3 HP 115V
CALL
BSKK253-02
0.7 HP, 115V
CALL
BSL2RD
0.4 HP 115V
CALL
BHB-229-1
2/3 HP, 115V
US$ 710
BSAP-50
2/3 HP, 3 Ph.
CALL
BHB-229
2/3 HP, 115V
US$ 920
BPB-101
0.5 HP, 115V
US$ 680
B2BH13001A
2/3 HP, 3 Ph.
CALL
BPB-202
1.2 HP, 115V
US$ 1,580
B2BC13001A
3/4 HP, 3 Ph.
CALL
BDR/CP404
1 HP, 115V
CALL
50 CFM BPB-102
0.5 HP, 115V
US$ 1,020
B2BH13101HK2
1.2 HP, 3 Phase
CALL
BPB-102
0.5 HP, 3 Phase
US$ 1,020
BPB-102
0.5 HP, 3 Phase
US$ 1,020
BCEV3718D2
1.7 HP, 3 Ph.
CALL
BSKG-22
1 HP, 3 Ph.
CALL
BSKGS-22
1 HP, 115V
CALL
BSKS-25320
1.2 HP, 115V
CALL
BSAP-110
2/3 HP,115V
CALL
BDR/CP-404
1 HP, 115V
CALL
BHB-329
1 HP, 3 Ph.
US$ 1,215
B2BH14001
1.1 HP, 3 Ph.
CALL
100 CFM BTBN-15N4
1 HP ODP
US$ 1,625
BTBN-17N4
1.5 HP ODP
US$ 1,695
BTBN-18N4
1.5 HP ODP
US$ 1,735
BTBN-19N4
2 HP ODP
US$ 2,080
BTBN-19N4
2 HP ODP
US$ 2,080
BHB-439
3 HP, 3 Ph.
US$ 1,665
BHB-429A
1.7 HP, 3 Ph.
US$ 1,340
BHB-429
2.5 HP, 3 Ph.
US$ 1,460
B2BH15001A
1.7 HP, 3 Ph.
CALL
BPB-301
2 HP, 115V
US$ 950
B2BH15001A
3.4 HP, 3 Ph.
CALL
BHB-4337
5 HP, 3 Ph.
US$ 4,535
250 CFM BTBN-15N4
2 HP ODP
US$ 1,735
BTBN-17N4
2 HP ODP
US$ 1,750
BTBN-18N4
3 HP ODP
US$ 1,795
BTBN-18W8
5 HP ODP
US$ 2,270
BTBN-19N4
3 HP ODP
US$ 2,100
BTBN-19N4
3 HP ODP
US$ 2,100
BTBN-22N6
5 HP ODP
US$ 2,460
BDR-707
5 HP, 3 Phase
CALL
BTBN-23N6
5 HP ODP
US$ 2,905
BTBN-24N6
5 HP ODP
US$ 3,030
BTBN-26N6
7.5 HP ODP
US$ 3,020
BDR-808
7.5 HP, 3 Ph.
CALL
500 CFM BTBN-16N4
3 HP ODP
US$ 1,750
BTBN-17N4
3 HP ODP
US$ 1,760
BTBN-18N4
5 HP ODP
US$ 1,780
BTBN-19N4
5 HP ODP
US$ 2,165
BTBN-19N4
5 HP ODP
US$ 2,165
BTBN-20N4
5 HP ODP
US$ 2,190
BTBN-21N6
5 HP ODP
US$ 2,340
BTBN-22N6
7.5 HP ODP
US$ 2,560
BTBN-23N6
7.5 HP ODP
US$ 2,995
BTBN-24N6
5 HP ODP
US$ 3,030
BTBN-25N6
10 HP ODP
US$ 3,380
DR-909
15 HP, 3 Ph.
CALL
750 CFM BTBN-16W6
5 HP ODP
US$ 1,885
BTBN-17W6
5 HP ODP
US$ 1,890
BTBN-18W6
5 HP ODP
US$ 1,905
BTBN-18W6
5 HP ODP
US$ 1,905
BTBN-19N6
5 HP ODP
US$ 2,240
BTBN-19N6
7.5 HP ODP
US$ 2,350
BTBN-21N6
7.5 HP ODP
US$ 2,450
BTBN-22N6
7.5 HP ODP
US$ 2,560
BTBN-23N6
10 HP ODP
US$ 3,270
BTBN-23N6
10 HP ODP
US$ 3,270
BTBN-25N6
15 HP ODP
US$ 3,380
BTBN-26N6
15 HP ODP
US$ 3,515
1000 CFM BTBN-16W6
5 HP ODP
US$ 1,885
BTBN-17W6
7.5 HP ODP
US$ 1,995
BTBN-18W6
7.5 HP ODP
US$ 2,000
BTBN-18W8
7.5 HP ODP
US$ 2,070
BTBN-19W8
7.5 HP ODP
US$ 2,365
BTBN-19W8
7.5 HP ODP
US$ 2,365
BTBN-20W8
10 HP ODP
US$ 2,700
BTBN-22W8
10 HP ODP
US$ 2,860
BTBN-23N6
10 HP ODP
US$ 3,270
BTBN-23N6
15 HP ODP
US$ 3,320
BTBN-24N8
15 HP ODP
US$ 3,400
BTBN-26N8
15 HP ODP
US$ 3,570
1250 CFM BTBN-17W6
7.5 HP ODP
US$ 1,885
BTBN-17W6
7.5 HP ODP
US$ 1,995
BTBN-18W6
7.5 HP ODP
US$ 2,000
BTBN-18W8
7.5 HP ODP
US$ 2,070
BTBN-19W8
10 HP ODP
US$ 2,625
BTBN-19W8
10 HP ODP
US$ 2,625
BTBN-20W8
10 HP ODP
US$ 2,700
BTBN-22W8
15 HP ODP
US$ 2,905
BTBN-23N6
15 HP ODP
US$ 3,270
BTBN-23N6
15 HP ODP
US$ 3,320
BTBN-24N8
15 HP ODP
US$ 3,500
BTBN-26N8
20 HP ODP
US$ 4,040
1500 CFM BTBN-16W8
7.5 HP ODP
US$ 1,995
BTBN-17W8
7.5 HP ODP
US$ 2,030
BTBN-18W8
10 HP ODP
US$ 2,330
BTBN-18W8
10 HP ODP
US$ 2,330
BTBN-19W8
10 HP ODP
US$ 2,625
BTBN-19W8
10 HP ODP
US$ 2,625
BTBN-20W8
15 HP ODP
US$ 2,750
BTBN-22W8
15 HP ODP
US$ 2,905
BTBN-23N8
15 HP ODP
US$ 3,370
BTBN-23N8
15 HP ODP
US$ 3,370
BTBN-24N8
20 HP ODP
US$ 3,880
BTBN-26N8
20 HP ODP
US$ 4,040
1750 CFM BTBN-17W8
10 HP ODP
US$ 2,290
BTBN-17W8
10 HP ODP
US$ 2,290
BTBN-18W8
10 HP ODP
US$ 2,330
BTBN-19W8
10 HP ODP
US$ 2,625
BTBN-19W8
15 HP ODP
US$ 2,625
BTBN-20W8
15 HP ODP
US$ 2,635
BTBN-21W8
15 HP ODP
US$ 2,750
BTBN-22W8
15 HP ODP
US$ 2,905
BTBN-23N8
20 HP ODP
US$ 3,835
BTBN-24N8
20 HP ODP
US$ 3,880
BTBN-25N8
20 HP ODP
US$ 3,965
BTBN-25N8
20 HP ODP
US$ 4,315
2000 CFM BTBN-17W8
10 HP ODP
US$ 2,290
BTBN-18W8
15 HP ODP
US$ 2,385
BTBN-19W8
15 HP ODP
US$ 2,690
BTBN-19W8
15 HP ODP
US$ 2,690
BTBN-20W8
15 HP ODP
US$ 2,635
BTBN-20W8
15 HP ODP
US$ 2,635
BTBN-21W8
15 HP ODP
US$ 2,185
BTBN-22W8
20 HP ODP
US$ 2,840
BTBN-23N8
20 HP ODP
US$ 3,835
BTBN-24N8
20 HP ODP
US$ 3,880
BTBN-25N8
20 HP ODP
US$ 3,965
BTBN-25N8
20 HP ODP
US$ 4,315
2500 CFM BORB-11-30-4
15 HP ODP
US$ 3,485
BTBN-19W10
15 HP ODP
US$ 2,790
BTBN-19W10
15 HP ODP
US$ 2,790
BTBN-19W10
15 HP ODP
US$ 2,790
BTBN-20W10
20 HP ODP
US$ 3,295
BTBN-20W10
20 HP ODP
US$ 3,295
BTBN-21W10
20 HP ODP
US$ 3,535
BTBN-22W10
20 HP ODP
US$ 3,6605
BTBN-23W10
25 HP ODP
US$ 4,250
BTBN-23W10
30 HP ODP
US$ 4,330
BTBN-24W10
30 HP ODP
US$ 4,415
BTBN-25W10
30 HP ODP
US$ 4,595
3000 CFM BTBN-20W8
20 HP ODP
US$ 3,240
BTBN-19W10
20 HP ODP
US$ 3,260
BTBN-20W10
20 HP ODP
US$ 3,295
BTBN-20W10
20 HP ODP
US$ 3,295
BTBN-21W10
25 HP ODP
US$ 3,810
BTBN-21W10
25 HP ODP
US$ 3,810
BTBN-22W10
30 HP ODP
US$ 3,940
BTBN-23W10
30 HP ODP
US$ 4,330
BTBN-23W10
30 HP ODP
US$ 4,330
BTBN-24W10
40 HP ODP
US$ 4,995
BTBN-25W10
40 HP ODP
US$ 4,995
BTBN-26W10
40 HP ODP
US$ 5,090
4000 CFM BM11-4
25 HP ODP
US$ 2,960
BORB-11-30-4
25 HP ODP
US$ 4,380
BORB-11-30-4
25 HP ODP
US$ 4,380
BTBA-1111
25 HP ODP
US$ 4,895
BTBA-1206
25 HP ODP
US$ 5,240
BTBA-1206
30 HP ODP
US$ 5,315
BTBN-23W12
40 HP ODP
US$ 5,065
BTBN-23W12
40 HP ODP
US$ 5,065
BTBN-23W12
40 HP ODP
US$ 5,055
BTBN-25W12
50 HP ODP
US$ 5,565
BTBN-26W12
50 HP ODP
US$ 5,625
BTBN-26W12
50 HP ODP
US$ 5,625
5000 CFM BTBA-1111
30 HP ODP
US$ 5,155
BTBA-1210
25 HP ODP
US$ 5,395
BTBA-1206
30 HP ODP
US$ 5,315
BTBA-1206
40 HP ODP
US$ 5,900
BTBN-23W12
50 HP ODP
US$ 5,440
BTBN-23W12
50 HP ODP
US$ 5,440
BTBN-24W12
50 HP ODP
US$ 5,460
BTBN-24W12
50 HP ODP
US$ 5,460
BTBN-25W12
60 HP ODP
US$ 5,800
BTBN-26W12
60 HP ODP
US$ 5,860
BHP-45-80-4
60 HP
US$ 8,995
BTBA-1506
75 HP ODP
US$ 10,740
6000 CFM BTBA-1210
30 HP ODP
US$ 4,205
BTBA-1310
30 HP ODP
US$ 6,075
BTBA-1408
40 HP ODP
US$ 7,425
BTBA-1210
40 HP ODP
US$ 6,050
BTBA-1210
40 HP ODP
US$ 7,685
BTBA-1310
40 HP ODP
US$ 6,660
BTBA-1310
50 HP ODP
US$ 7,040
BTBA-1310
50 HP ODP
US$ 7,040
BTBA-1408
60 HP ODP
US$ 8,050
BTBA-1410
60 HP ODP
US$ 8,795
BHP-45-80-4
75 HP ODP
US$ 10,125
BHP-50-80-4
100 HP ODP
US$ 13,190
7000 CFM BTBA-1210
40 HP ODP
US$ 6,060
BTBA-1210
40 HP ODP
US$ 6,060
BTBA-1210
50 HP ODP
US$ 6,430
BTBA-1310
50 HP ODP
US$ 7,040
BTBA-1310
50 HP ODP
US$ 7,040
BTBA-1408
60 HP ODP
US$ 8,050
BTBA-1310
50 HP ODP
US$ 7,040
BTBA-1410
60 HP ODP
US$8,795
BTBA-1410
60 HP ODP
US$ 8,795
BTBA-1410
75 HP ODP
US$ 9,790
BTBA-1508
75 HP ODP
US$ 11,750
BTBA-1510
100 HP ODP
US$ 12,990
8000 CFM BRB-919
40 HP TEFC
US$ 6,565
BORB-21-20-4
50 HP ODP
US$ 8,350
BTBA-1410
50 HP ODP
US$ 8,555
BTBA-1410
50 HP ODP
US$ 8,555
BORB-23-30-4
60 HP ODP
US$ 10,840
BTBA-1510
60 HP ODP
US$ 10,765
BTBA-1410
60 HP ODP
US$ 8,790
BHP-45-80-4
100 HP ODP
US$ 11,880
BTBA-1410
75 HP ODP
US$ 9,790
BTBA-1410
75 HP ODP
US$ 9,790
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
9000 CFM BORB-21-20-4
50 HP ODP
US$ 8,350
BRB-921
50 HP TEFC
US$ 5,670
BRB-921
50 HP TEFC
US$ 7,370
BORB-23-30-4
60 HP ODP
US$ 10,840
BTBA-1410
60 HP ODP
US$ 8,795
BTBA-1410
60 HP ODP
US$ 8,795
BTBA-1410
75 HP ODP
US$ 9,790
BTBA-1410
75 HP ODP
US$ 9,790
BTBA-1410
100 HP ODP
US$ 11,030
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
10000 CFM BORB-21-20-4
60 HP ODP
US$ 8,450
BRB-921
50 HP TEFC
US$ 9,450
BRB-921
60 HP TEFC
US$ 9,960
BTBA-1510
60 HP ODP
US$ 10,765
BTBA-1510
75 HP ODP
US$ 11,750
BTBA-1510
75 HP ODP
US$ 11,750
BHP-45-80-4
125 HP ODP
US$ 13,090
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
BTBA-1510
100 HP ODP
US$ 12,990
BHP-50-80-4
150 HP ODP
US$ 17,125














The first factor to consider is the fan’s blade pass frequency, which is a pure tone produced when the blades of the fan wheel (impeller) rotate past the housing cut-off sheet in centrifugal fans, or the turning vanes, in axial fans. The fan blade pass frequency is calculated by multiplying the number of blades times the rotating speed in revolutions per minute. If this frequency matches the natural frequency of the ductwork, it can excite the ductwork, which can cause it to resonate, thereby increasing the noise level. Because of this possible increase in sound, and because certain pure tones are irritating to people, the sound output of the blade pass frequency should be investigated when sound reduction is desired. The next factor to consider is the fan design. Generally a fan operating at peak mechanical efficiency will produce less noise, because high efficiencies result from minimal air turbulence within the fan.

The sound generated by some fans can be a potential hazard to personnel in close proximity to the fan, and the sound can be transmitted, via the ductwork connected to the fan, to all areas serviced by the fan. Because of these concerns, fan manufacturers publish sound ratings for their products to serve as a guide for selecting fans to meet sound specifications, and to assist acoustical consultants in predicting the total noise levels in specific environments. This article provides basic information to help understand fan sound ratings and how to apply them. Like any mechanical device, fans generate sound, which emanates naturally from the turbulence of moving air, the mechanics of moving parts of the fan, and from vibration.

Air turbulence within the fan increases the sound coming from the air movement. The noise resulting from air turbulence is a major factor in the sound levels of a fan in a specific application. Further, duct work can transmit this turbulent noise to all areas serviced by the fan. Factors contributing to air turbulence include the resistance to flow, flow separation along fan surfaces, and shock related to abrupt changes in the direction of airflow, pressure, or velocity. A lower noise level can be achieved by reducing air turbulence. This can be done by considering several factors related to air movement when selecting fans.

There are four basic centrifugal fan wheel designs - forward curved, backwardly inclined, radial, and radial tip fans - and a variety of axial flow wheel designs. Each blower wheel design has unique sound characteristics due to the way they handle air, and the efficiencies they can achieve. Fan speed does not always determine which fan will be quieter. For example, centrifugal fans have higher amplitudes at lower frequencies, while axial fans exhibit higher amplitudes at the higher frequencies. The amplitude of the blade pass frequency on an axial fan is higher and more pronounced than on backwardly-inclined fans, and commonly will have amplitude peaks at multiples of this frequency.

Of the four centrifugal designs, the backwardly inclined fans are the most efficient, and therefore, the quietest. Those with airfoil-shaped blades offer the highest efficiencies, for clean air environments, while those with single-thickness blades can be used in applications where light dust or moisture is present, although the efficiencies are somewhat lower.

Certain types of axial fans offer the next highest efficiencies. An excellent example is the  Vaneaxial fan that uses airfoil shaped blades in an in-line flow design. This fan is used to handle high volumes of clean air at low pressures, which is a typical ventilation application.

Radial fans are typically low efficiency, open designs for special purpose applications, such as bulk material handling, or exhausting / supplying lower volumes of air at higher pressures. A radial fan will be much louder than a backwardly-inclined fan operating under the same volume and pressure conditions.

Radial Tip fans, commonly used to handle larger volumes of air that contains particles or material, exhibit sound characteristics similar to the radial fans. The sound spectra of radial and radial tip fans contain amplitude spikes at various frequencies, and a noticeable spike at the blade pass frequency.

The forward-curved fan design operates at speeds that are much slower than the other fan types, which results in lower noise levels from mechanical operation and vibration. However, because of its modest efficiencies, a forward curved fan may be noisier than a backwardly-inclined fan when operating at comparable volume and pressure. The sound spectrum of the forward-curved fan shows a slower rate of reduction in amplitudes than the other centrifugal types, and because of the large number of blades, the blade pass frequency occurs much later in the spectrum and is not predominant.

The moving components of the fan - the motor, bearings, and drive - produce sound. This too can be transmitted through the system via the fan structure or shaft, or when these components are in the airstream. Motor sound will vary with speed, enclosure, electrical characteristics, and even the manufacturer. Antifriction bearings can be used to reduce bearing noise, and proper drive selection will reduce the likelihood of belt hop, or slap. Of course, proper maintenance must be employed to keep the moving parts running smoothly, and quietly.

Excessive vibration can significantly add to the overall noise level of an installation. This will occur if the fan or any of its components are not adequately balanced, if the fan is installed on an insufficient foundation, or if the fan is not properly isolated from other system components. For example, it is not uncommon for the fan’s support structure or ductwork to have a natural frequency at the fan’s operating speed or blade pass frequency, either of which can cause the system to resonate at that frequency, increasing the sound levels, and the possibility of damaging the installation. These risks can be eliminated by changing the speed of the fan, installing appropriate isolation, and / or detuning of the fan or affected system components.

dBA is a useful measurement for evaluating the overall noise level at a particular location, but this measurement takes into account all of the sound sources affecting that particular location, which include the sounds from all equipment in the area, natural sounds of the environment, and from other environmental factors. Some of these factors are the current physical properties of the air such as temperature, humidity, and pressure, whether the location is outside or inside, the size and material of the room. All of these affect the sound pressure experienced by the listener, and recorded by the sound level meter.

Published fan sound power ratings and corrections only reflect noise created by air turbulence within the fan. Because of the infinite variables, mechanical noise and vibration noise are impossible to accurately predict, and are not included in the rating.

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New York Blower Fans and Blowers, American Coolair Roof Ventilators, ILG Fan,Illinois Blower Sealed Gas Tight Fans, Industrial Gas Engineering Plug Fans, Industrial Air Products High Capacity Fans and Blowers. We supply high pressure fans and blowers including centrifugal plug fans, high pressure axial blowers, pressure blowers, variable air flow fans.
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