Operation; Maintenance - Emerson PENBERTHY Installation, Operation And Maintenance Instructions

PENBERTHY STEAM RING HEATER
INSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS
4.1 Mounting
Although the SRH can be oriented in any
position, it is recommended to position the SRH
horizontally. In this manner, the steam piping
and SRH will be in a position to facilitate the
removal of condensate at start up.
4.2 Effect of related piping and precautions
1. The SRH should be installed with piping
and fittings which provide the minimum
resistance to flow. Pipe line friction losses
must always be a consideration when
estimating SRH performance.
2. It is recommended that provisions be made for
pressure gauge connections near the liquid
inlet and outlet and steam inlet connection
of the SRH. If operating difficulties are
encountered at any time, it may be necessary
to install pressure gauges to identify the
problem.
3. It is also recommended that check valves be
installed in both the steam inlet and liquid
inlet lines.
4. Steam must not have over 20°F [-7°C] of
superheat or performance will differ from
that published in the applicable technical data
sheet or product proposal.
5. The steam line must be clean, insulated and
as short as possible to prevent condensation
of steam and excessive line friction losses.
6. Do not impose piping loads on the SRH.
The unit is designed to be supported by the
combined liquid inlet and outlet and steam
inlet piping.
7. Provide the steam line with a hand operated
valve for maintenance and emergency shut-
off. The steam line should be provided with a
steam trap.

5 OPERATION

5.1 Pre-operational check
1. Check that all installation instructions have
been completed.
2. Check that any restrictions in the discharge
line have been removed.
3. Check that discharge line valves are fully open.
4. Check that the manually operated steam
line valve is fully closed.
5.2 Operating
1. Turn the operating liquid valve fully open and
establish full flow. Keep it on throughout the
entire operating process.
WARNING
Failure to maintain the liquid flow while operating
the SRH with steam can cause serious personal
injury or property damage as a result of live steam
being driven into the liquid piping.
2. Slowly and partially open the manually
operated steam line valve to first check for
leaks. If leaks are evident, close valve, allow
line to cool off, tighten connections, and
repeat procedure until all leaks are stopped.
3. Slowly and partially open the manually
operated steam line valve to remove
condensate in the steam line. When the
steam line at the heater is hot, open the
steam line valve slowly until the desired
liquid outlet temperature is established.
5.3 Shutdown
1. Turn the manually operated steam line valve
off in order to first lower the steam pressure
as much as possible before shutdown.
2. Gradually turn the operating liquid flow fully
off.
WARNING
Failure to maintain the liquid flow throughout the
shutdown procedure can cause serious personal
injury or property damage as a result of live steam
being driven into the liquid piping.

6 MAINTENANCE

Use only qualified, experienced personnel who
are familiar with this equipment and thoroughly
understand all the instructions in this manual
for all maintenance.
WARNING
Do not proceed with any maintenance unless the
SRH has been relieved of all pressure or vacuum,
has been allowed to reach ambient temperature
and has been drained or purged of all fluids.
Failure to do so could result in serious personal
injury or property damage.
6.1 Preventative maintenance
The user must create maintenance schedules,
safety manuals and inspection details for each
specific installation of a steam ring heater.
On all installations, check the following items
regularly for purposes of maintenance:
1. SRH(s) for corrosion or debris build up.
2. Piping and fittings for corrosion or debris
build up.
3. All connections for tightness and leaks.
4. Units for wear
The user must determine an appropriate
maintenance schedule necessary for his or her
own specific application, upon evaluation of
his or her own operating experience. Realistic
maintenance schedules can only be determined
with full knowledge of the services and
application situation involved.
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