Q.V.P. VAKUUM BAGS WITHOUT BASEBOARDS - Manual

Quality VAKuum Products, Inc.
Or visit our site at
www.qualityvak.com
74 Apsley St. - Hudson, MA 01749
Tel: 978-562-4680 - Fax: 978-562-4681
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INSTRUCTIONS FOR ASSEMBLING
VAKUUM BAGS WITHOUT BASEBOARDS
6/19/2000 - Bags Without Baseboards & Curve Info.cdr
When using a bag without a baseboard inside, you
need to make some changes to the setup.
The VAKuum Bag Connector (VCA or VCA6) should
have an additional metal washer that goes inside the
bag as shown in Drawing A. If you do not have a
washer to fit the VCA(6), make one out of something
like Formica or a thin piece of wood. Make sure it
does not have any sharp edges!
Decide where you want the connector located.
Normally, 18“ in from the end is a good location for
long narrow bags. Remember, the connector must
butt up against your workpiece and not against the
opposite side of the bag. If it hits the opposite side of
the bag, the vacuum hole will seal itself off and you
will not get full vacuum in the bag.
For the VCA, cut a 5/8“ dia. hole or a 3/4” hole for the
VCA6 at the point you want the connector located. If
you put the hole in the wrong place, patch it using a
vinyl pool repair kit, but be careful not to glue the bag
together.
Push the connector through the bag so that the
rubber washer is against the bag. Place the other
rubber washer and metal washers over the connector
and snug the nut tight with a wrench. Do not over
tighten.
When using the bag without a baseboard, which has
grooves in it to allow the air to be evacuated through
the vacuum port, you need another method of
allowing the air to flow from one end of the bag to the
VCA(6). A good method is to wrap your workpiece in
nylon window screen material (see our video). The
connector then butts against the window screen
which allows the air to flow through the mesh.
It helps if you cut or file grooves into the top nut. This
allows the air to pass into the vacuum connector at a
faster rate.
Drawing A
RUBBER
WASHERS
BAG
METAL WASHER
METAL
WASHERS
VCA6
A screen or net material is used inside a bag
without a baseboard in order to allow the air to be
evacuated from the back of the bag. The bag can
seal around the connector on a smooth surface
and seal itself off from the remainder of the bag.
We have recommended plastic window screen
and it can be used. This netting is easier to use
and remove.
The netting is expandable and can slide over a
jamb or stair stringer. If your part is too wide for
the net, just tape it to the top side (away from the
form) of your piece. Make sure that the VCA6
(VAKuum Bag Connector) touches the screen.
Always do a dry run the first time using VAK-Net.
NEW VAK-Net
M