Centrifugal Fans AT belt driven - Nicotra Gebhardt
Centrifugal Fans AT belt driven - Nicotra Gebhardt Centrifugal Fans AT belt driven - Nicotra Gebhardt
AT G2C 9/7-30/28 AT G2C-C2 20/15-30/28 Specifications Fan data Fittings / Accessories 106 High performance centrifugal twin fan AT-G2C (size from 9/7 to 30/28) Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming (size up to 18/18) or with Pittsburgh lock seam (for sizes larger than 18/18). Inside a common supporting frame, made of galvanized steel sections, two doubleinlet fans are mounted side-by-side. They are joined by a single shaft, supported at the ends by two pillow-block bearings, bolted on the side frames. This particular design doesn’t need a third bearing between the impellers, and weight is kept low thanks to the use of large section, hollow shafts on the larger sizes. High performance centrifugal twin fan AT-G2C-C2 (size from 20/15 to 30/28) Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam. The G2C-C2 fan is a reinforced twin unit, suitable to achieve higher speed and power levels than the G2C. Mechanical design is similar to that of the G2C fans, but hollow shafts with larger diameter (45 mm) journals and heavy duty split-block bearings make them stronger. The G2C-C2 fans retain the other characteristics of the G2C fans. Fan type Volume flow Total pressure increase Static pressure Air density at fan inlet Air medium temperature Shaft power Efficiency Speed Sound power level (A weighted) Weight • Mounting feet • Motor brackets (Pick-A-Back) • Discharge flange • Discharge flex with flexible sleeve • Inlet guards • Discharge guard • Shaft guard for free shaft end • Matching flange Belt Driven Centrifugal Fans / AT / Specifications . . . . . . . . . . . . . . . . . . . . . . q V . . . . . . . . . . . . . . . . . . . . . . . . m³/h p F . . . . . . . . . . . . . . . . . . . . . . . . Pa p sF . . . . . . . . . . . . . . . . . . . . . . . . Pa r 1 . . . . . . . . . . . . . . . . . . . . . . . . kg/m³ t . . . . . . . . . . . . . . . . . . . . . . . . °C P a . . . . . . . . . . . . . . . . . . . . . . . . kW (h a ) . . . . . . . . . . . . . . . . . . . . . . . . N . . . . . . . . . . . . . . . . . . . . . . . . 1/min L WA . . . . . . . . . . . . . . . . . . . . . . . . dB m . . . . . . . . . . . . . . . . . . . . . . . . kg Options may be available only for orders of a minimum quantity, to be previously agreed • Inspection door • Drain plug • Single or double thickness powder coating • Shaft made of stainless steel • Nuts and bolts and fastening elements made of stainless steel • Aluminium inlet cone • Copper inlet cone
AT SC2 7/7-18/18 Specifications Fan data Fittings / Accessories High performance centrifugal tripple fan AT G3C (size from 12/9 to 30/28) Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming (size up to 18/18) or with Pittsburgh lock seam (for sizes larger than 18/18) The G3C is a triple fan: three identical double-inlet units are mounted inside a common frame of steel sections. The single, common shaft is supported by just two pillow-block bearings, bolted on the end frames. This special version is particularly suited when a large airflow must be distributed on a wide surface, or when a fan of particularly limited height can be useful. Other advantages of this design are the use of a single motor, operation without bearings installed between the impellers, and low weight thanks to the use of hollow shafts. Using a common shaft, without intermediate bearings and couplings, provides also a reliable and smooth operation, with limited operating noise. High performance centrifugal tripple fan AT G3C-C2 (size from 20/15 to 30/28) Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam. Of similar construction to the G3C version, but employs larger diameter hollow shafts, with larger diameter journals and heavy-duty bearings on split-type pillow blocks. These improvements allow operation at higher speed and power levels. The G3C-C2 fans keep unchanged all the other characteristics of the G3C fans. Fan type Volume flow Total pressure increase Static pressure Air density at fan inlet Air medium temperature Shaft power Efficiency Speed Sound power level (A weighted) Weight • Mounting feet • Motor brackets (Pick-A-Back) • Discharge flange • Discharge flex with flexible sleeve • Inlet guards • Discharge guard • Shaft guard for free shaft end • Matching flange Belt Driven Centrifugal Fans / AT / Specifications . . . . . . . . . . . . . . . . . . . . . . q V . . . . . . . . . . . . . . . . . . . . . . . . m³/h p F . . . . . . . . . . . . . . . . . . . . . . . . Pa p sF . . . . . . . . . . . . . . . . . . . . . . . . Pa r 1 . . . . . . . . . . . . . . . . . . . . . . . . kg/m³ t . . . . . . . . . . . . . . . . . . . . . . . . °C P a . . . . . . . . . . . . . . . . . . . . . . . . kW (h a ) . . . . . . . . . . . . . . . . . . . . . . . . N . . . . . . . . . . . . . . . . . . . . . . . . 1/min L WA . . . . . . . . . . . . . . . . . . . . . . . . dB m . . . . . . . . . . . . . . . . . . . . . . . . kg Options may be available only for orders of a minimum quantity, to be previously agreed • Inspection door • Drain plug • Single or double thickness powder coating • Shaft made of stainless steel • Nuts and bolts and fastening elements made of stainless steel • Aluminium inlet cone • Copper inlet cone 107
- Page 11 and 12: AT 9/7 Dimensions in mm, subject to
- Page 13 and 14: AT 9/9 Dimensions in mm, subject to
- Page 15 and 16: AT 10/8 Dimensions in mm, subject t
- Page 17 and 18: AT 10/10 Dimensions in mm, subject
- Page 19 and 20: AT 12/9 Dimensions in mm, subject t
- Page 21 and 22: AT 12/12 Dimensions in mm, subject
- Page 23 and 24: AT 15/11 Dimensions in mm, subject
- Page 25 and 26: AT 15/15 Dimensions in mm, subject
- Page 27 and 28: AT 18/13 Dimensions in mm, subject
- Page 29 and 30: AT 18/18 Dimensions in mm, subject
- Page 31 and 32: AT 20/15 Dimensions in mm, subject
- Page 33 and 34: AT 20/20 Dimensions in mm, subject
- Page 35 and 36: AT 22/15 Dimensions in mm, subject
- Page 37 and 38: AT 22/22 Dimensions in mm, subject
- Page 39 and 40: AT 25/20 Dimensions in mm, subject
- Page 41 and 42: AT 25/25 Dimensions in mm, subject
- Page 43 and 44: AT 28/20 Dimensions in mm, subject
- Page 45 and 46: AT 28/28 Dimensions in mm, subject
- Page 47 and 48: AT 30/20 Dimensions in mm, subject
- Page 49 and 50: AT 30/28 Dimensions in mm, subject
- Page 51 and 52: AT SC2 Dimensions in mm, subject to
- Page 53 and 54: AT G2C Dimensions in mm, subject to
- Page 55 and 56: Notes Notes Belt Driven Centrifugal
- Page 57 and 58: AT SC 7/7-18/18 AT C 7/7-18/18 Spec
- Page 59 and 60: AT TIC 20/15-30/28 Specifications F
- Page 61: AT SC2 7/7-18/18 Specifications Fan
- Page 65 and 66: Gebhardt fan systems - the "complet
- Page 67 and 68: Fittings / Accessories Corrosion Pr
- Page 69 and 70: Fittings / Accessories Volumeter p
- Page 71 and 72: Fittings / Accessories Anti Vibrati
- Page 73 and 74: Fan Sets Base Frame with Belt Tensi
- Page 75 and 76: RZR 11-0200/-0500 Fan set arrangeme
- Page 77 and 78: RZR 12-0200/-0710 Fan set arrangeme
- Page 79 and 80: RZR 13-0400/-1000 RZR 18-0400/-1000
- Page 81 and 82: AT 7/7-18/18 Fan set arrangement wi
- Page 83 and 84: RZR 12-0200/-0710 Fan set arrangeme
- Page 85 and 86: RZR 13-0400/-1000 RZR 18-0400/-1000
- Page 87 and 88: Fan Sets Min. Pulley-Diameter, Bear
- Page 89 and 90: Fan Sets Belt Driven Centrifugal Fa
- Page 91 and 92: Fan Sets Min. recommended Pulley Di
- Page 93 and 94: Description Bearings ADH / AT / RDH
- Page 95 and 96: Description Motors Attachment point
- Page 97 and 98: Description Operating limits ADH Pe
- Page 99 and 100: Description Operating limits RDH Pe
- Page 101 and 102: Description Performance p sF = p F
- Page 103 and 104: Description Sound 1 = Air permeable
- Page 105 and 106: Description Operating limits RZR AT
- Page 107 and 108: Notes Quality management system Mac
<strong>AT</strong> G2C 9/7-30/28<br />
<strong>AT</strong> G2C-C2 20/15-30/28<br />
Specifications<br />
Fan data<br />
Fittings / Accessories<br />
106<br />
High performance centrifugal twin fan <strong>AT</strong>-G2C<br />
(size from 9/7 to 30/28)<br />
Lap-jointed scroll of galvanized steel EN 10142 assembled with roller-lock seaming<br />
(size up to 18/18) or with Pittsburgh lock seam (for sizes larger than 18/18).<br />
Inside a common supporting frame, made of galvanized steel sections, two doubleinlet<br />
fans are mounted side-by-side.<br />
They are joined by a single shaft, supported at the ends by two pillow-block bearings,<br />
bolted on the side frames.<br />
This particular design doesn’t need a third bearing between the impellers, and weight<br />
is kept low thanks to the use of large section, hollow shafts on the larger sizes.<br />
High performance centrifugal twin fan <strong>AT</strong>-G2C-C2<br />
(size from 20/15 to 30/28)<br />
Lap-jointed scroll of galvanized steel EN 10142 assembled with Pittsburgh lock seam.<br />
The G2C-C2 fan is a reinforced twin unit, suitable to achieve higher speed and power<br />
levels than the G2C.<br />
Mechanical design is similar to that of the G2C fans, but hollow shafts with larger<br />
diameter (45 mm) journals and heavy duty split-block bearings make them stronger.<br />
The G2C-C2 fans retain the other characteristics of the G2C fans.<br />
Fan type<br />
Volume flow<br />
Total pressure increase<br />
Static pressure<br />
Air density at fan inlet<br />
Air medium temperature<br />
Shaft power<br />
Efficiency<br />
Speed<br />
Sound power level (A weighted)<br />
Weight<br />
• Mounting feet<br />
• Motor brackets (Pick-A-Back)<br />
• Discharge flange<br />
• Discharge flex with flexible sleeve<br />
• Inlet guards<br />
• Discharge guard<br />
• Shaft guard for free shaft end<br />
• Matching flange<br />
Belt Driven <strong>Centrifugal</strong> <strong>Fans</strong> / <strong>AT</strong> / Specifications<br />
. . . . . . . . . . . . . . . . . . . . . .<br />
q V . . . . . . . . . . . . . . . . . . . . . . . . m³/h<br />
p F . . . . . . . . . . . . . . . . . . . . . . . . Pa<br />
p sF . . . . . . . . . . . . . . . . . . . . . . . . Pa<br />
r 1 . . . . . . . . . . . . . . . . . . . . . . . . kg/m³<br />
t . . . . . . . . . . . . . . . . . . . . . . . . °C<br />
P a . . . . . . . . . . . . . . . . . . . . . . . . kW<br />
(h a ) . . . . . . . . . . . . . . . . . . . . . . . .<br />
N . . . . . . . . . . . . . . . . . . . . . . . . 1/min<br />
L WA . . . . . . . . . . . . . . . . . . . . . . . . dB<br />
m . . . . . . . . . . . . . . . . . . . . . . . . kg<br />
Options may be available only for orders of a minimum quantity, to be previously<br />
agreed<br />
• Inspection door<br />
• Drain plug<br />
• Single or double thickness powder coating<br />
• Shaft made of stainless steel<br />
• Nuts and bolts and fastening elements made of stainless steel<br />
• Aluminium inlet cone<br />
• Copper inlet cone
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