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T
T
r
r
u
u
P
P
o
o
i
i
n
n
t
t
e
e
®
®
2
2
1
1
0
0
0
0
of condensate coming int
of condensate coming
into trap as well.
o trap as well.
there is so much background noise that
there is so much background noise that
The sound of most bearings comes alive
The sound of most bearings comes alive
or vibration sometimes make it
or vibration sometimes make it necessar
necessary to use the High frequency probe.
with your equipment will determine which is
with your equipment will determine which is
Steam Traps
Steam Traps
A
A st
steam trap is a
eam trap is a
device which work
device which
works much like an a
condensed steam (water) has accum
condensed steam (water) has
accumulated in the trap.
the condensate, while retaining the steam for maximum ef
the condensate, while retaining the steam for maximum ef
when a malfunctioning st
when a malfunctioning
steam trap fails in either the open or clos
eam trap fails in either the open or
it can often go undetected.
it can often go undetected.
Left uncorrected in the closed position, faulty steam traps will cause
Left uncorrected in the closed position, faulty steam traps will cause
problems such as "water hammer".
problems such as "water hammer".
live steam, drastically reducing system ef
live steam, drastically reducing system ef
NOTE:
NOTE:
It is fairly common for large
It is fairly common for large
processing plants to spend tens of thousands of
processing plants to spend tens of thousands of
on steam system conservation programs (equipment
on steam system conservation programs (equipment
and personnel) designed to locate and repair failing
and personnel) designed to locate and repair failing
steam traps.
steam traps.
in these programs.
in these programs.
T
T
o test steam traps you will use the touch probe sensor.
o test steam traps you will use the touch probe sensor.
display reads the desired probe mode, then
display reads the desired probe mode, then
Making a
Making a
fi
fi
rm contact, touch the end of the probe to the steam trap being tested.
rm contact, touch the end of the probe to the steam trap being tested.
enough pressure to make a good
enough pressure to make a good
tion of the internally generated ultrasonic sound. If the
tion of the internally generated ultrasonic sound. If the
system sounds, reduce the sensitivity, and touch just
system sounds, reduce the sensitivity, and touch just
verify that what you hear is
verify that what you hear is
only the steam trap being tested.
only the steam trap being tested.
A pr
A
properly functioning s
operly functioning
steam trap will hav
team trap will
interpret with the Tru Pointe
interpret with the Tru Pointe
®
®
2100.
2100.
Y
Y
ou may want to
ou may want to
listen to the sound of
listen to the sound of
on the condition of others.
on the condition of others.
Knowing what a healthy trap
Knowing what a healthy trap s
There are many different types of steam traps
There are many different types of steam
type and not another.
type and not another.
To
To
detect the
detect the
"PrbS" allows you to hear sonic
"PrbS" allows you to hear sonic
(audible) sounds, and is used as
(audible) sounds, and is used as
Thermal Expansion Valves (TXV)
Thermal Expansion Valves (TXV)
The Tru Pointe
The Tru Pointe
®
®
2100 can be used
2100 can be used
valve which may be
valve which may be
leaking internally.
leaking internally.
Any
Any
fl
fl
uid or gas passing
uid or gas passing
from the upstream side (high pressure) to the
from the upstream side (high pressure) to the
pressure) through a poorly seated valve will
pressure) through a poorly seated valve will
®
®
Tru Pointe
Tru Pointe
2100.
2100.
This test method is very similar to that of steam traps.
This test method is very similar to that of steam traps.
perimeter of the valve housing.
perimeter of the valve housing.
the gate, ball, needle, etc. seats into
the gate, ball, needle, etc. seats into
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There are times when this is bene
There are times when this is bene
the Low setting may not be
the Low setting may not be
in the Low range
in the Low range
probe, however, very high speeds and/
probe, however, very high speeds and/
y to use the High frequency probe.
the best setting for you.
the best setting for you.
s much like an
automatic faucet
utomatic
faucet, opening only at
ulated in the trap.
The steam trap then will open to purge
The steam trap then will open to purge
fi
fi
ciency.
ciency.
closed position.
ed position.
If failed in the open position, the trap will constantly release
If failed in the open position, the trap will constantly release
fi
fi
ciency.
ciency
.
These are problems that can be quite
These are problems that can be quite costly
manufacturing and
manufacturing and
Ultrasonic detectors
Ultrasonic detectors p
play an important role
lay an important role
Press the "MODE" button until the
Press the "MODE" button until the
press
press
and
and
to activate the touch probe sensor.
to activate the touch probe sensor.
▲
▲
▼
▼
contact, but do not push too
contact, but do not push too
hard.
hard. Y
trap sounds appear to be masked by
trap sounds appear to be masked by
upstream and downstream from the
upstream and downstream from the
have a distinct on
e a distinct on
and off
and off
fl
fl
ow cycle which is easy to
ow cycle which is easy to
A strong rushing sound indicates that the
A strong rushing sound indicates that the tra
a good trap before trying
a good trap before trying
to make important decisions
to make important decisions
sounds like will be a great advantage.
ounds like will be a great advantage.
traps.
.
A
A "sputter
"sputtering" sound may be quite normal for one
ing" sound may be quite normal for one
fl
fl
ow of condensate in pipe, swit
ow of condensate in pipe,
switch to "PrbS".
to test a TXV, check valve, ball, needle, gate... any type of
to test a TXV, check valve, ball, needle, gate... any type of
generate ultrasound, and clearly be heard using
generate ultrasound, and clearly be heard using
Use the touch probe to test around the
Use the touch probe to test around the
The sound will be loudest at the point of the leak (the area
The sound will be loudest at the point of the leak (the area
place to stop the
place to stop the
fl
fl
ow.
ow.
Use the sensit
Use the
I
I
n
n
s
s
t
t
r
r
u
u
c
c
t
t
i
i
o
o
n
n
0
0
0
0
2
2
8
8
-
-
9
9
0
0
0
0
3
3
fi
fi
cial, and times when
cial, and times when
effective.
effective.
Y
Y
our experiences
our experiences
, opening only at
times when
times when
Common
Common
problems arise
problems arise
When this happens
When this happens
costly.
.
dollars
dollars
Apply just
Apply just
You will hear a
ou will hear a
clear transla-
clear transla-
other
other
trap to
trap to
trap is purging.
p is purging.
ch to "PrbS".
Switching to
Switching to
a mechanical stethoscope.
a mechanical stethoscope.
downstream side (low
downstream side (low
the
the
where
where
sensitivity or frequenc
ivity or
frequency
y
11
11
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