Armstrong Emech F2 Manuale di installazione, funzionamento e manutenzione - Pagina 12
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Armstrong International
221 Armstrong Blvd., Three Rivers, Michigan, 49093 - USA
Phone (269) 279-3602 Toll Free (888) HOT-HOSE (468-4673)
12
3.0 - Flow Control Valve - Model F2
CAUTION!
Before dismantling the valve,ensure all
upstream and downstream pressurised pipe
work is isolated appropriately.
Ensure the pressure and fluids are drained
from the valve and pipe work.
After removing the gland nut locking screw,
unwind the gland nut counterclockwise using
the spanner provided. (Image 1)
Using a hex wrench, remove the four cap
screws around the bonnet. (Image 2)
Carefully remove the bonnet from the body
particularly if the valve is mounted in a
vertical position.
The spindle may detach from the rotating
disc and remain in the bonnet.(Image 3).
Remove the spindle and ensure that the two
thrust washers and needle bearing is on the
spindle. You may have to remove these from
the bonnet.
Alternately the spindle may stay attached to
the rotating disc in which case it should be
carefully removed. (Image 4)
In either situation, the spindle will need
to have two O-rings and two wear rings
removed (Image 5).
Remove the discs from the valve body.
Remove two energizers and check the pins
for any damage. If the pins are damaged
they need to be ordered separately (Image
7).
Finally remove the O-ring around the flange
of the bonnet (Image 8).
Maintenance- Dismantling
Designs, materials, weights and performance ratings are
approximate and subject to change without notice. Visit
armstronginternational.com/emech for up-to-date information.