CENTER
LINE
3201 Walnut Avenue, Long Beach, CA 90807
562/426-2531
FAX 562/490-9546
Gasket
INSTALLATION RECOMMENDATIONS
6
Incorrect
Pipe Flanges mis-aligned.
Uneven torque applied to
bolting.
Correct
Piping aligned.
Thread engagement even
on both sides of valve.
Incorrect
Disc in closed position.
Gaskets installed between
valve and mating flanges.
Correct
No flange gaskets used.
Disc in the “almost closed”
position.
Figure 2-Centering and Flanging of Valve
Figure 3-Flange Bolt Tightening Sequence
Figure 4-Final Valve Alignment and Tightening of Flange Bolts
1
15
8
12
4
10
6
14 2
16
7
11
3
9
5
13
1
8
4
6
2
7
3
5
1
8
4
6
2
11
7
3
9
5
10
12
1
2
3
4