ChemBall | CSB
Installation & Operating Instructions
5 Valve Installation
Warnings & Precautions
• During installation and maintenance work, suita-
ble protective clothing, including gloves and
protective goggles, must be worn.
• Prior to installation and maintenance work, the
pipe must be depressurised and emptied. If the
valve operates with dangerous flow media, the
pipe has to be emptied completely and flushed
with an appropriate cleaning fluid. Inappropriate
cleaning products can harm the valve!
• Under no circumstances should the
ChemBall | CSB be installed between flanges
which are not parallel. The axes of the pipes and
valve must be aligned. Furthermore, it is absolu-
tely prohibited to weld on the pipe while the valve
is mounted between the flanges, as this would
destroy the liner. Finally, when installed at the end
of a piping system, it is mandatory to mount a
blind flange to cap the piping system!
5
.1 Procedure
1.
Clean flange and sealing surfaces in order to
protect the PFA lining.
2. Remove the protective cover from the valve.
3.
Place the valve carefully between the two flanges.
4. Centre the valve with lubricated bolts or screws
accordingly before hand-tightening.
5. Adjust the position of the valve, pipe and seal to
ensure they are fully aligned.
6. Slowly open the valve to the fully-open position.
7. Tighten the screws and nuts according to the
following recommended bolting pattern using
the bolting torques shown in the following table.
Using larger torques can damage the body and
liner!
5
.2 Bolting
Bolts must be tightened in a star
pattern
1. Tighten each bolt to 10% of recommended
torque
2. Tighten each bolt to 30% of recommended
torque
3. Tighten each bolt to 60% of recommended
torque
4. Tighten each bolt to 100% of recommended
torque
1
2
3
4
5
6
7
8
Recommended Bolting Torques
DN [mm]
DN [Inch]
Locked Torque [Nm]
15*
1/2"
-
20*
3/4"
-
25
1"
12
32*
11/4"
-
40
11/2"
25
50
2"
35
65
21/2"
40
80
3"
45
100
4"
50
125
5"
60
150
6"
70
200
8"
85
*Calculations for these bolting torques are pending
16
ChemValve-Schmid AG
|
Duennernstrasse 540
|
CH-4716 Welschenrohr
|
+41 32 639 50 10
|
ChemBall
|
CSB Installation & Operating Instructions V2.1 EN
|
Copyright
©
by ChemValve-Schmid AG
|
Subject to change
