 Fume Cupboards
-Smoothflow
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-Sashdrive
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-The Building Act
-Electrical Safety
-AS/NZS 2243.8
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Laboratory
Equipment
Sashdrive Energy Efficient Fume Cupboards 
- Unfortunately, most fume
cupboards with Sash bypass systems generate a vortex inside the fume
chamber at reduced sash openings. The vortex is an internal re-circulation
of contaminated air, and can lead to fugitive emission when room turbulence
impinges on the sash opening.
- In the advanced Sashdrive
design, exhaust airflow is regulated by sash opening for constant face
velocity, and improved fume containment. With no secondary air inlet
(bypass), there is no vortex turbulence inside the fume chamber.
- When the exhaust air volume
correlates to the sash opening height, face velocity is constant at
any sash position, and air flow inside the fume chamber approaches ideal
laminar conditions. Fumes are conveyed along the most direct path to
the exhaust duct.
- Most of the time, fume cupboard
operations run with the sash well closed. Under these conditions, Sashdrive
fume cupboards exhaust less air volume from the laboratory. The laboratory
air contains energy for heating or cooling. At reduced volume flow,
energy losses are reduced.
- Sashdrive Fume cupboards
save energy, while improving fume containment. The saving can be up
to 80% of lost energy cost. Sashdrive fume cupboards pay for themselves.
Sashdrive
Features
- Sash index &
4-20mA transmitter
- Membrane keypad
- LCD four line text
status display
- Phase Inverter
Frequency Drive
- Constant Velocity
discharge cowl
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