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Maintenance – Flowserve BB 1 User Manual

Page 18

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8

Dual-plate check valve BB 2...

Undo threaded bolts, turn semicircular plates to the

left.

Take out semicircular plates, springs and support

plates.

Remove support plates, cover springs and withdraw

hinge pins.

Danger

Note that springs are preloaded, which means that they can jump out of the plate body

when the valve is being installed or removed.
This presents the risk of injuries to hands, arms and face.

Maintenance

– continued –

BB 2... Changing springs

1

2

3

4

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