Adler SpA
Valvole a sfera –- V.le Borletti , 14 - 20010 S. Stefano Ticino (MI) - ITALY
Tel.
+39 - 0297484211 –
Fax
. +39 - 0297271698
- Web Site
: www.adlerspa.com -
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Three ways wafer ball valve 90°our type ADLER “FA4”, “FZ4”, “FZ6”
a)
Turn the lever (Ref. 15) up to rotate the ball (Ref. 6) on position 1/3;
b)
Unscrew the insert (Ref. 2);
c)
Remove the ball (Ref. 6), replacing it if the external surface results damaged;
d)
Unscrew and remove the first nut on the stem (Ref. 14), the wrench (Ref. 15), the second nut (Ref.14), spring washers (Ref.12) and the
pressing bush (Ref. 11);
e)
Remove the stem (Ref. 8) with the ‘V’ seal (Ref. 10) and the stem seal (Part. 9) ;
f)
Replace the seats (Ref. 5) of the body (Ref. 1) and the seats of the insert (Ref.2); replace the O-Ring (Ref. 3) and the seal (Ref. 4)
g)
Reassemble the bush (Ref. 9) on the stem (Ref. 8) replacing it if damaged;
h)
Reassemble the ball (Ref. 6) into the body (Ref. 1) keeping the down side male connection of stem in axis with ways 2/3 and the ball in
position 1/3 reassembling the insert (Ref. 2) up to the mechanical ledge;
i)
Rotate the ball for 2-3 times in order to be sure of ball centring then reassemble the ‘V’ seal (Ref. 10) on the stem (Ref.. 8), replacing it if
damaged;
j)
Reassemble the pressing bush (Ref. 11), spring washers (Ref. 12), the nut (Ref. 14) the lever (Ref. 15) the top-nut (Ref. 14).
k)
Operate the valve 3-4 times in order to check that the rotation is free from defects (appropriate torque uniformity of the ball rotation.
WARNING
: Adler S.p.A. cannot be held responsible for incorrect operations occurring during the maintenance or
for a wrong evaluation of components not replaced or replaced improperly.
FOREWORD
:
for maintenance of electric and pneumatic accessories mounted on ball valves it is necessary to follow the
instructions of their manuals.
