BOC Edwards is pleased to announce the introduction of a new generation of Silent Flow blower packages. The new range which is named Silent Flow Plus brings with it many ‘pluses’. A broader range of both high and medium pressure versions is available to give our customers the optimum selection of package. The new design incorporates the recent requirements of PED (Pressure Equipment Directive) and CE safety issues. And, of course, it is backed by the extensive BOC Edwards worldwide customer care facilities.
Features & benefits
• Extended range gives optimum blower package selection capability
for any duty
• High and Medium pressure ranges
• Designed to reduce floor area requirements to a minimum
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• Package totally CE safety compliant
• Silencers PED compliant (Pressure Equipment Directive)
• ATEX compliant (zone 22)
• Acoustic Enclosures suitable for outdoor use as standard
• Powder coated paint as standard
• Enclosures capable of operation at high ambient temperatures due to efficient air ventilation system and large fan. Low temperature rise inside enclosure
• Hinged doors as standard (Sizes 1-3)
• Reduced noise levels by virtue of improved enclosure panel to panel construction and package design
• Traditional Silent Flow features maintained (automatic belt tensioning, easily removed filter cartridge, easy access, easy handling)
• Worldwide service and back-up in keeping with the global BOC Edwards organization. Advice immediately at hand. |
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1 Filter silencer
2 Drive guard
3 Blower 4 Motor
5 Tensioning device 6 Transmission
7 Motor mounting
8 Anti-vibration mount
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9 Palletizable base
10 Relief valve
11 Discharge piping
12 Flexible connection
13 Non return valve
14 Silencer base |
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‘Silent Flow’ size 0-00´
Blower package components
• Acoustic enclosure
Manufactured from zinc plated steel sheet the enclosures are epoxy powder coated and suitable for outside installation and aggressive atmospheric conditions. Forced ventilation is by an oversized fan unit. It is recommended that the fan continues to operate for ten minutes after the blower is stopped to remove any residual heat. The acoustic material lining the walls is flame retardant. All blower packages are supplied fully assembled on a palletizable base provided with an earth connection. The silencer base is connected to the package base by an earth strap.
The basic version packages have a pressure gauge connected to the discharge
and a filter restriction indicator.
• Options
The instrumentation can include:
- temperature gauge
- temperature switch
- ambient thermostat inside enclosure.
• Transmission
‘Silent Flow Plus’ packages are supplied with belt transmission systems featuring automatic tensioning so that no adjustment is needed after start-up. The automatic tensioning system has been designed to accept motors in cast iron and aluminium to NEMA standards, etc.
• The suction filter/silencer |
This device combines the functions of sound attenuation and filtration. The centrally positioned cartridge guarantees that the gas being conveyed remains free of contamination even in the event of the absorbent lining of the silencer being destroyed.
• Silencer base
Resting on anti-vibration mounts reducing dynamic forces, it supports the blower motor assembly, and inlet filter silencer. The design is totally reactive to ensure a broad spectrum sound attenuation without risk of infil migration to the downstream process.
• Discharge assembly
Comprising a pipe fitted with a works-calibrated safety valve, isolated pressure gauge, non-return valve and a flexible connector. As an option, a starting valve can be supplied.
• Starting valve
Not necessary for blowers fitted with frequency inverted motors, this device is recommended for blowers driven by electric motors controlled by a star-delta starter (and starting against a fixed head).
• Non-return valve
Made of aluminum and silicon, these valves are totally corrosion-proof. The full bore minimizes pressure losses.
• Oil change
The high pressure range blowers come with an oil change system consisting of two check valves with safety caps. Automatic draining is provided
by connecting a flexible drain pipe. |
