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APV_DKR2_DE-9_032019.indd
Double Seat Ball Valve
DELTA DKR 2
Instruction Manual: UK - rev. 9
APV
UK
12. Service Instructions
12.3. Installation of seals and guide bands
1.
Slightly grease O-rings (5, 6) and guide bands (4) before their
installation in the shaft bearings (2/22).
2.
Push upper and lower shaft bearing (2) with a little grease in the
housing, insert screws (3), but do not fasten them.
3.
Slightly grease housing seals (7, 7a) before their installation on the
PTFE ball seals (9, 9a).
4.
Turn valve ball into open position by hand and install ball seals with
some grease at both sides.
5.
Slightly grease O-rings (12) and insert them in the spray connection
(10).
12.4. Assembly of valve
1.
To ensure a safe handling of the valve, clamp the lower bearing
flange into a vice with protective cheeks. Turn the ball into "open
position".
Place yoke (17), spray connection (10), indicator (13) and coupling
(14) on the ball housing. The lower coupling cam must point to the
lower yoke bore (x) and the indicator must point into flow direction.
2.
Screw in screws (18), but do not fasten them.
5
7, 7a
9, 9a
12
18
17
14
10
shaft bearing
shaft bearing
shaft bearing
4
6
13
3
X
