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EB 26a_EN
Maintenance
Series 26a Ball Valve
Fig. 1 - Series 26a Ball Valve with Series 31a Rotary Actuator
0 Table of contents
0
Table of contents
1
1 Introduction
1
2
Design, operation and dimensions
2
3
Installation, start-up and maintenance
2
4
Assembly of standard ball valves
2
4.1 Assembly of the ball valve
2
4.2 Assembly
of
fi re-safe ball valve
2
4.3 Assembly of the standard ball valve
4
4.4 Tightening
torques
6
5
Assembly of special ball valves
6
5.1 Assembling the high-temperature ball valve
6
6 Troubleshooting
9
7
Repair of the ball valve
9
7.1 Replacing the packing
9
7.2 Replacing the sealing unit and ball
9
7.3 Further repair work
9
8 Customer
inquiries
9
1 Introduction
These instructions are intended to assist the user on assem-
bling and repairing Series 26a Ball Valves.
Specifi cations are subject to change without notice. The text
and drawings do not necessarily display the scope of supply
or any ordering of spare parts.
Drawings and graphics are not to scale.
Customer-specifi c designs not in accordance with our stand-
ard product range are not shown.
Fig. 2 – Fire-safe Series 26a Ball Valve => See Table 1 (on page 3) for parts list
Fig. 3 – Standard Series 26a Ball Valve => See Table 2 (on page 5) for parts list
