10-7
Service Procedures Operator Manual 129390199
10.6 Steam Trap
Replacement
Refer to Figure 10-3.
Disassembly
1. Using a suitable wrench, unscrew and remove the cap and
bellows assembly.
2. Remove seat from body using a hex socket wrench.
3. Wipe out bowl taking care that loose material does not enter the
piping.
Reassembly
1. Screw new seat in firmly. (Use a socket head wrench to tighten.)
NOTE: Seat and bellows are a lapped pair.
2. Install new bellows.
3. Replace cap and attached bellows assembly, using a new
gasket.
4. Check for leaks.
10.7 Clean or Replace
Piping Check Valves
Repair of check valve is limited to cleaning of valve seats when
foreign matter causes improper operation. When a valve becomes
defective, the entire valve must be replaced, unless the check valve
has a field repair kit. Kit consists of new seals and springs. Refer to
Table 10-1, Recommended Spare Parts, for correct check valve part
number.
WARNING – BURN HAZARD:
• Allow sterilizer and
accessories to cool to room
temperature before performing
any cleaning or maintenance
procedures.
• Jacket pressure must be at 0
psig before beginning work on
the steam trap.
CAUTION – POSSIBLE
EQUIPMENT DAMAGE
HAZARD: Allow thermostatic
traps to cool down to room
temperature before removing
cover. Since there is nothing
to limit expansion, the bellows
may rupture or fatigue if trap
is opened while hot.
Figure 10-3. Steam Trap
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