Flowserve AKH2 IOM Atomac Lined Ball Valve IOM - Manual (Page 10)

AKH2 - atomac ball valve - full port
Ahaus GmbH
von-Braun-Straße 19a
D-48683 Ahaus
Postfach 1162 D-48661 Ahaus
Telefon: +49(0) 2561-686-100
Fax: +49(0) 2561-686-200
Register: 2
Page: 10
Date: 12.1995
Revision: 02.2009
Technical Manual
Disassembly Instructions for AKH2
For all jobs which are to be carried out on an installed valve, the works safety require-
ments and the gerneral accident prevention instructions must be observed. Moreover,
the general installation and maintenance instructions for atomac fluorcarbon resin lined
valves must be considered.
1. Prior to disassembly, the valve must be cleared of all fluid according to the
above-mentioned instructions. Particular care must be taken that during rin
sing and draining of the piping, the valve is opened and closed repeatedly.
These cycles (opening and closing) are to be
repeated during draining of the piping. Only when following this procedure, is it
ensured
that all remaining pressure inside the body (stem guide and ball seats) is
eliminated.
2. For disassembly of the valve, put body on a work bench with a soft cover (rubber
mat).
Remove hexagon bolt (110) and lock washer (150).
3. Open valve completely. Remove hand lever.
4. Disassemble grounding device (170).
5. Disassemble gland follower (060) and
gland insert (065). If necessary, stud bolts
(120) can also be removed now.
6. Remove body bolts (080) and separate side
piece from body.
7. Remove first ball seat ring (030).
8. Put ball in closed position and push ball
out of the body. Remove hand lever (070).
9. Remove stem (040) by pushing it down
through the body (010). Care must be taken
not to damage body liner.
10. Chevron packing (100) can easily be
removed.
11. If necessary, remove hand lever
stop (210) by releasing bolt
(220).