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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Full bore wafer ball valves type
ADLER “FA1”, “FB1”, “FC1”, “FA8” , “FB8”
Full bore two pieces ball valves
type ADLER “FS2”, “FP2”, “FR2”
a)
Turn the lever (Ref. 15) up to close the ball;
b)
Dismantling the ball valve unscrewing the insert (Ref. 2) from the body (Ref.1);
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 (Ref.. 9);
f)
Replace seats (Ref. 5) of the body (Ref. 1) and of the insert (Ref. 2) the seal and the o-ring of the body (Ref. 3 e 4);
g)
Re-assemble the ball valve replacing the stem (Ref. 8), if damaged with the bush (Ref. 9);
h)
Keeping the stem on closed position, put the ball (Ref. 6), into the body (Ref. 1), then fasten the insert (Ref. 2) to the body (Ref.1);
i)
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) and the top nut (Ref. 14);
k)
Open and close 3-4 times in order to check that the rotation is free from defects (appropriate torque and uniformity of the ball rotation).
3 Pieces full bore ball valve type ADLER “FP3” e “FR3”
a)
Turn the lever (Ref. 15) up to close the ball.
b)
Dismantling the ball valves unscrewing nuts from stud-bolts (Ref. 16) then remove the central body (Ref. 1) from ends (Ref.2);
c)
Remove the ball (Ref.. 6), replacing 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 (Ref. 9);
f)
Replace seats (Ref. 5) and the seals (Ref. 4) from the body (Ref.1);
g)
Replace the stem (Ref. 8), if damaged with the bush (Ref. 9);
h)
Keeping the stem in closed position, put the ball (Ref. 6) into the body (Ref.1), then fix the ends (Ref. 2) to the body (Ref.1) with stud bolts
(Ref. 16);
i)
Reassemble the ‘V’ seal (Ref. 10) on the stem (Ref. 8), replacing if it damaged;
j)
Reassemble the pressing bush (Ref. 11), spring washers (Ref. 12), the nut (Ref. 14), the lever (Ref.15) and the top nut (Ref.14). Reassemble the
body (Ref. 1) between ends (Ref..2);
k)
Open and close 3-4 times in order to check that the rotation is free from defects, (appropriate torque and uniformity of the ball rotation).
