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FEATURES
Marine grade axial fans manufactured under license from Witt & Sohn are available for standard and high pressure applications.
Witt & Sohns well proven expertise has established this product as one of the leaders in Marine fan technology and associated noise and vibration control.
With a standar fan design as the starting point for a given application, using the latest CAD technology the Witt design team can rapidly incorporate any requisite design modifications from standard component elements to accommodate even the most exacting fan specification.
This means that such specification criteria (eg. severity of duty; space limitations; special materials and surface treatments) - can be incorporated efficiently and at considerably less cost and lead time than a conventional one off design approach
CONSTRUCTION
AXIAL - FLOW FANS
- Inlet Sizes - 250 to 2800 mm.
- Casing Thickness - 1,5 to 16 mm.
- Impeller Types - N, M, X, Y, H (adj. Pitch)
- Motor Frame Sizes - NEMA or IEC
- Drive Types - Direct, V-belt or coupling
- From Positions - See attached to Positions as requested
- Casing Designs - Short/long casing, swing out, w/wo shaped inlet
- Surface Treatment - Primer; finish; hot-dip galvanized, as required
- Materials - Corrosion resistant cast Impellers Aluminum
- Materials - Steel, aluminum, special Casings Alloys
- Special Designs - Flame-proof; shock-proof; high temperature, as required
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ACN
The Novax ACN axial flow fans have pre-settable blades and are for duct installation and suitable for both conventional installations for marine and for industrial ventilating applications.
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AXIAL-FLOW FANS
nlet sizes 250 to 2800 mm.
Casing thickness 1,5 to 16mm.
Impeller types N, M, X, Y (adj.pitch).
Motor frame sizes 63 to 400.
Drive types Direct, V-belt or coupling.
Positions A,AU,AD,B,BD,BU (Eurovent).
Casing designs Short/long casing, swing out, w/wo shaped inlet.
Surface treatment Primer; finish; hot-dip galvanised, as required.
Materials - Impellers Corrosion resistant cast aluminium.
Materials - Casings Steel, aluminium, special alloys.
Special designs Flame-proof; shock-proof; earth-quake proof; high temperature, as required.
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Axial fan for high pressure with direct drive
Surface: hot-dip galvanized or powder coated
Options: pully belt drive, ATEX, various accessories
Sizes:
VH 310 - VH 1.250 (Ømm)
Application:
HVAC and refrigeration systems for machinery and accomodation rooms, short and long casings, thick metal casings up to 10mm, max. 80°C
Technical Data:
V = 1.000 - 150.000 m³/h
P = 300 - 2.500 Pa
L = 1 - 90 kW
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Axial fan for low pressures, with direct drive
Surface: hot-dip galvanized or powder coated
Options: pully belt drive, ATEX, various accessories
Sizes:
VM 250 - VM 1600 (Ømm)
Application:
HVAC and refrigeration systems for machinery and accomodation rooms, short and long casings, thick metal casings up to 10mm, max. 80°C
Technical Data:
V = 1.000 - 200.000 m³/h
P = 100 - 1.400 Pa
L = 0.25 - 75 kW
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Axial fan, high efficiency (-83%), blades adjustable when stationary, direct drive, medium pressure fan
Surface: hot-dip galvanized or powder coated
Options: pully belt drive, ATEX, various accessories
Sizes:
VML 500 - VML 2.000 (Ømm)
Application:
HVAC and refrigeration systems for machinery and accomodation rooms, short and long casings, thick metal casings up to 10mm, max. 80°C
Technical Data:
V = 1.000 - 450.000 m³/h
P = 100 - 2.800 Pa
L = 0,25 - 250 kW
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GT Centrimaster belt driven
These single inlet, centrifugal fan series consists of centrifugal fans, belt driven, available with two types of impeller:
-Impeller with forward curved blades made of galvanized sheet steel.
- Impeller with backward-curved blades, made of sheet steel and welded, coated with epoxy powder. The fans are also available in a spark-proof version with the inlet cone made of brass.
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In addition to their standard range of fans, COMBIMAC are well-equiped to manufacture custom-built fans and fan systems to suit individual customer's applications and requirements.
In order to meet these requirements COMBIMAC can offer fans manufactured from the following materials:
- cast iron
- cast aluminium
- aluminium
- stainless steel
- sheet steel
- non-ferro materials
- exotic materials
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For direct supply or exhaust at duct end, for instance, in engine rooms requiring a high rate of air changes.
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For direct installation in duct systems. Supplied with an impeler with adjustable pitch marine grade aluminum alloy blades direct coupled to a motor, and easy access for motor servicing. The fan housing & flanges in heavy plate.
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For direct installation in duct systems. Supplied with an impeller with adjustable pitch marine grade aluminum alloy blades, direct coupled to a motor. The fan housing and flanges are in heavy plate in accordance with the requirement of international classification society.
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A full series is available, including axial flow internal types, axial flow external types, turbo types, and multi-blade types for marine use, offering a choice to meet diverse requirements. Impellers of axial flow fan type are aluminum cast, and all due consideration has been given to their use as fans for marine use in terms both of their casing thickness and the paint skin thickness. A rich array of models including the FA, LR, FAX, FD, TB, MF, and TF are available, depending on the method of installation, purpose of use, etc.
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FEATURES
Marine grade intake and discharge terminals are weatherproof. Manufactured from heavy gauge steel, vents are closable, equipped with a hand wheel.
- Accepted by Lloyd Register of Shipping
- Heavy gauge steel construction
- Flange mounted or welded installation
- Wire mesh opening protection
- Weather resistant closing mechanism
- Built to meet requirements of Regulatory Bodies
- Available for any required capacity
- Primed and/or painted finish
- Easy cleaning access
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