GESTRA BB 1, Original Installation Instructions

Page: 22 / 52

22
Exchanging the gasket
The area of application of gaskets depends
on the medium and temperature.
Some types are fitted with metal seats.
Gaskets cannot be replaced in these
models.
The example diagram below shows a BB 1
unit.
 Use a punch to detach the gasket (6) from the
plate.

Select the new type of gasket according to the
desired application of the equipment.

Insert a new gasket in each plate.
 Make sure that the gaskets are properly
inserted.
Installing springs in BB 1 and BB 3, DN 50–
125, DN 450–500
Attention!
Malfunctions may occur if the equipment is
installed incorrectly.
The holes in the plate (5) might be
asymmetric. If installed incorrectly the
plates do not fully rest against the body
seat and tight shut-off is not ensured.

After installation make sure that the
plates rest fully against the body seat.
 Insert an angle bracket or plate (5) into the
body.
DANGER
Risk of bruises if the equipment or
component parts fall down.

Use suitable lifting gear when moving
or lifting the equipment and/or
component parts.

Make sure that the equipment cannot
topple over.

Make sure that nobody is standing
below the lifted equipment.
 Put the two plates (8) as shown into the body.
 Insert the second angle bracket or the second
plate (5) into the body.

Align all parts until the bores are in perfect
alignment.

Push the two hinge pins through the bores in
the body and in the plates or angle brackets.
 Make sure that the hinge pins are securely
located in the bores.