Vetter Leak sealers - Manual (Page 23)

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9. Vetter Flange Draining Bag
9.1 Description
The flange draining bag is used in all areas where it is not possible
to seal a leak using the normal leak sealing bag. Using the gas
and liquid sealed zip connection the flange draining bag can be
quickly closed.
The gel plates contained in the delivery package are fixed onto
the pipe under the inflatable collar. They smooth out any uneven-
ness which may exist on the surface of the pipe.
Inflating the collars produces a drainage space. After bag inflation,
the hazardous material can be drained via the stainless steel ball
valve and the acid outlet hose.
9 Place the collection container to where the hazardous materi-
al is to be drained.
9 Lay the flange drainage bag around the leak point and close
it with the zip.
9 Connect the inflation hose of the foot air pump with the con-
nection coupling on the collar of the flange drainage bag.
9 Inflate the flange drainage bag with the foot air pump at each
collar until the leak is sealed and no liquid escapes.
9 Connect the acid outlet hose to the ball valve of the flange
drainage bag.
9 Open the ball valve in order to drain the hazardous material
into the collection container.