
The MICROVENT Activated Carbon Air Filter is suitable for
Marine, Caravan, Commercial Vehicle and Site installations.
ACTIVATED CARBON filters are widely used for improving
the working and living environment in industry, commerce
and the home, wherever deodourising systems are required.
ACTIVATED CARBON filters can be found at work in
industries as diverse as motor vehicle assembly and food
manufacturing, in buildings as different as hospitals and
airports.
ACTIVATED CARBON filters are sufficiently versatile
to produce clean refreshing air in most cases where polluted
air is a problem.
ACTIVATED CARBON is a processed carbon with highly
developed absorptive powers, ideal for removing a wide range
of unpleasant odours and gaseous contaminates from air streams.
ACTIVATED CARBON filters consist of carbon granules
which are obtained from coconut shells, wood and coal. These
different sources result in a wide variety of grades, covering
specific applications. For gas or air treatment, for example,
the most effective carbon is produced from coconut shells
or anthracite, both of which have exceedingly fine pore structures
that can be greatly developed during the activation process.
ACTIVATED CARBON filters are ideal for handling the
unpleasant gases and odours which escape from digestion and
settling tanks and for this reason are often specified by
water authorities.
Breathers for Holding Tanks in boats have been a major problem
unless the tank is continually fed with odour camouflaging
chemicals. These chemicals destroy natural biodegrading qualities
and, contrary to popular opinion, create a less clean tank.
Water authorities do not like the use of chemicals. These
can seriously damage water treatment plants, when discharging
into the main sewer system, from boats, caravans, etc. Hydraulic
pressure that can be inflicted upon a tank by extending breather
pipes vertically, and the necessity for large bore breathers
to prevent implosion at pump out, often demand that the breather
outlet is in a less than ideal position. With an ACTIVATED
CARBON FILTER the outlet is no longer a problem and the
tank can be used without costly and environmentally harmful
chemical treatment.
The specifically developed filter has hose connections for
1'/2" (38mm) ID Breather required by British Standard MA 101.
Access is required for changing the carbon element, although
this is an easy and infrequent job.
The MICROVENT filter can be installed almost anywhere
and is designed to connect with the breather plumbing from
any angle. Air flow through the filter can be from either
inlet/outlet.
The MICROVENT filter should be installed within the
breather pipeline in such away as to minimise the possibility
of it becoming directly in contact with solid or fluid contents
inside the holding tank.
To achieve this it is advisable to install the MICROVENT as high as possible within the system.
Sail Boat installations should have an anti syphon loop
in the breather pipe to prevent water ingress.
The MICROVENT can be mounted in any position as
illustrated in diagrams at right. It is only marginally
preferable to have the air flow from the holding tank to
the outside atmosphere, passing 'IN' through the central
hose connection situated on the underside of the filter
and 'OUT' through the side hose connection. However, where
it is essential, or more convenient, then the foul air can
be routed in the opposite direction.
Access must be available for the removing and replacing
of the MICROVENT filter element. A minimum of 32mm.
(1.25 ins.) clearance from any obstruction is required for
the removal of the filter cover. The filter element itself
is 82mm. (3.5 ins.) long and 76mm. (3 ins.) in diameter.
Space must be provided to effect its removal from the MICROVENT body after the cover has been removed.
The hose connection elbow can be used on either connection
to suit the installation as and when required. This should
be clamped with the hose clamp provided.
Various layout options