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SENTRY
Sample Coolers
• Water
• Steam
• Process
Liquid
• Gas
Largest Selection Of Models
Offered By Any Manufacturer
SeventyFive
Years
of Heat
Transfer
World Leader in Sample Coolers
Heavy Duty:
Wide Variety of Materials:
Cools down hot water, steam or
process samples for either
continuous chemical analysis or grab
samples. All gaskets are asbestos
free. Ratings to 1000°F at 5000 psi
(540°C at 350 bar). Coil is a single
continuous tube – no welded joints.
Shell, head and tube available in
many materials, including Stainless
Steel, Inconel, Cupronickel, Hastelloy
and Titanium.
High Efficiency:
Achieves extremely close
temperature approach. Effective
baffling on the shell
side produces full counterflow with
low cooling water flow and minimum
vibration and scaling.
Compact Design:
Can be mounted in cooling water
piping without using brackets or
special supports.
Sentry offers a wide variety of sample
coolers with a choice of heat transfer
area, materials of construction and
shell design.
Standard sample tube sizes are:
• 1/4” diameter in lengths of 19 and
38 feet (5.8 and 11.6 meters)
• 3/8” diameter in lengths of 19, 38
and 50 feet (5.8, 11.6 and 15.2
meters)
• 1/2” diameter in a length of 20 feet
(6 meters)
The standard tube material is 316
stainless steel. Optional materials are
available for handling fluids which are
not compatible with stainless steel.
Inconel 625 is used when chlorides
are present in the cooling water or
sample. Exotic alloys such as
Hastelloy, Titanium and Monel are
available for severe service
applications. The standard shell
2
Removable Shell:
Shell can be easily removed for
inspection and/or cleaning without
disconnecting sample lines.
Low Cost:
Very high heat transfer surface area
per unit of cost.
Code Stamp:
Many models available with ASME
Section VIII Stamp, TUV or Canadian
Registration.
material is 304 stainless steel with
cupronickel as an option.
The TF series is the most commonly
used shell configuration for
applications in power plants and the
petrochem industry. It is the most
compact of the high pressure models
and has cooling water connections top
and bottom to facilitate piping into a
central panel. The FLF series
provides larger heat transfer capacity,
and all four connections are on the
top so that the shell can be removed
without breaking any connections.
The WSW model has an all-welded
shell with a 1/2” tube. It is commonly
used in process sampling or gases
and more viscous fluids. The TRB4222 is used for sampling water from
heating and industrial boilers.
Selection:
To select a cooler:
1. Consult the performance charts and
choose a model which will handle the heat
load requirements. Remember that the
cooler may become fouled over time and
performance will be diminished.
2. Then go to the mechanical specifications
to select a model with suitable materials
and construction. Stainless steel is normally
the least expensive construction and most
stainless models can be shipped from
stock.
Performance charts for water samples are
shown on page 7. Steam performance charts
are on the rear cover. For fluids other than
these, consult the factory. The performance
data assumes a fouling factor of 0.001, and
does not include the temperature rise which can
occur when compressed water is depressurized
(see correction curve page seven). The rate of
fouling will vary with cooling water quality.
Therefore, the actual cooler performance may
vary at other than assumed conditions.
Analyzer Samples:
If the sample is to be routed to an analyzer,
consult the analyzer manufacturer’s literature
for desirable sample temperature and
maximum limits on temperature.
Process Samples:
In handling process samples, subcooling can
sometimes be a problem. Sentry sample
coolers are extremely efficient and it may not
be possible to control the sample outlet
temperature by merely throttling the cooling
water. At very low flow rates, the cooling water
may boil and cause vibration in the cooler coil.
This can lead to a mechanical failure of the coil
and should be avoided.
If in doubt on this consideration, consult the
factory for recommendations.
Steam Samples:
Steam performance data are for saturated
steam. Superheat is quickly dissipated in
a short run of sample line and can be
safely ignored.
Mechanical specifications, including materials
of construction and ratings are given on pages
4, 5 and 6.
For steam samples of less than 600 psi
(41 bar) pressure, sample flow may be limited
by pressure loss. Consult Sentry
for predicted maximum flows with low pressure
steam.
EXAMPLE: A sample of boiler water at
2400 psi and 600ºF is to be cooled to less than
93ºF using 90ºF cooling water. Desired sample
flow rate is 1000 cc/min.
For high pressure steam samples, use a cooler
with at least 2.4 ft2 (0.22 m2) of heat transfer
surface.
1. From the chart on page 7, note that
the proper cooler is cooler type 2.
Note: with a sample pressure of
2400 psi, the temperature rise due to
pressure reduction downstream of the
cooler is approximately 6ºF as seen on the
chart on page 7.
2. On page 4, note that the TLF is available
with either stainless steel or inconel tubing.
Since stainless steel is acceptable for boiler
water, select the model TLF-4225. If the
cooling water was high in chlorides, a better
selection would be the Model TLF-44B5.
Secondary Cooling:
If secondary cooling (refrigerated water) is to
be used, the primary cooler should be large
enough to cool the sample to within 20ºF (9ºC)
of the primary cooling water temperature. This
minimizes the load on the refrigeration system.
Secondary coolers should provide an approach
temperature of no greater than 1ºF (0.5ºC).
On most models, the shell can be easily
removed for inspection and/or cleaning
without disconnecting sample lines
The TF series is the most commonly used
shell configuration for applications in power
plants and the petrochem industry.
3
TF
Series
• Most compact and lowest priced high pressure coolers
• Top and bottom cooling water connections for easy panel piping
• Single gasket for maximum leak tight integrity
• New Installation Kits available for process side connection to sample tubing.
(See Page 8 for Installation Kit descriptions.)
Specifications - TF Series
Model No.
Shell Design
Tube Design
Tube
Material
Shell
Material
Part
Number
Performance Data
Water
Steam
TSF-4225
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1000ºF
345 bar @ 540ºC
1/4” O.D.
316SS
9 lbs
4 kg
7-00687A
1
NR
1
TLF-4225
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1000ºF
345 bar @ 540ºC
1/4” O.D.
316SS
12 lbs
5.5 kg
7-00686A
2
A
1
TSF-44B5
150 psi @ 250ºF
10 bar @ 121ºC
5000 psi @ 1100ºF
345 bar @ 593ºC
1/4” O.D.
Cupronickel 1.2 ft2
Inconel 625
0.11 m2
9 lbs
4 kg
7-00693F
1
NR
1
TLF-44B5
150 psi @ 250ºF
10 bar @ 121ºC
5000 psi @ 1100ºF
345 bar @ 593ºC
1/4” O.D.
Cupronickel 2.4 ft2
Inconel 625
0.22 m2
12 lbs
5.5 kg
7-00693E
2
A
1
TSF-42B5
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1100ºF
345 bar @ 593ºC
1/4” O.D.
304SS
Inconel 625
1.2 ft2
0.11 m2
9 lbs
4 kg
7-00687H
1
NR
1
TLF-42B5
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1100ºF
345 bar @ 593ºC
1/4” O.D.
304SS
Inconel 625
2.4 ft2
0.22 m2
12 lbs
5.5 kg
7-00686L
2
A
1
Area
Weight
304SS
1.2 ft2
0.11 m2
304SS
2.4 ft2
0.22 m2
Install Kit
NR = Not recommended for steam samples
4
FF
Series
• Higher capacity, lower pressure drop
• All connections are on top for disassembly without breaking any connections
Specifications - FF Series
Model No.
Shell Design
Tube Design
Tube
Material
Shell
Material
Part
Number
Performance Data
Water
Steam
FLF-4225
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1000ºF
345 bar @ 540ºC
1/4” O.D.
316SS
22 lbs
10 kg
7-00759A
2
A
1
FSF-6225
450 psi @ 650ºF
31 bar @ 345ºC
5000 psi @ 1000ºF
345 bar @ 540ºC
1.7 ft2
0.16 m2
26 lbs
12 kg
7-00757C
2
NR
2
FLF-6225
450 psi @ 650ºF
31 bar @ 345ºC
304SS
3.5 ft2
0.33 m2
31 lbs
14 kg
7-00757A
3
B
2
FLF-6225U
3/8” O.D.
316SS
304SS
3.5 ft2
0.33 m2
31 lbs
14 kg
7-00763A
3
B
2
2485 psi @ 680ºF
171 bar @ 360ºC
3/8” O.D.
316SS
304SS
3.5 ft2
0.33 m2
24 lbs
11 kg
7-00760A
3
B
2
450 psi @ 650ºF
31 bar @ 345ºC
2850 psi @ 1000ºF
196 bar @ 540ºC
3/8” O.D.
316SS
304SS
4.7 ft2
0.44 m2
35 lbs
16 kg
7-00757B
4
C
2
FSF-64B3
150 psi @ 250ºF
10 bar @ 121ºC
3400 psi @ 1100ºF
284 bar @ 593ºC
3/8” O.D.
Cupronickel 1.7 ft2
Inconel 625
0.16 m2
26 lbs
12 kg
7-00632J
2
NR
2
FLF-64B3
150 psi @ 250ºF
10 bar @ 121ºC
3400 psi @ 1100ºF
284 bar @ 593ºC
3/8” O.D.
Cupronickel 3.5 ft2
Inconel 625
0.33 m2
31 lbs
14 kg
7-00632M
3
B
2
FSF-62B3
450 psi @ 650ºF
31 bar @ 345ºC
3400 psi @ 1100ºF
284 bar @ 593ºC
3/8” O.D.
304SS
Inconel 625
1.7 ft2
0.16 m2
24 lbs
11 kg
7-00632H
2
NR
2
FLF-62B3
450 psi @ 650ºF
31 bar @ 345ºC
3400 psi @ 1100ºF
284 bar @ 593ºC
3/8” O.D.
304SS
Inconel 625
3.5 ft2
0.33 m2
31 lbs
14 kg
7-00632K
3
B
2
Area
Weight
304SS
2.4 ft2
0.22 m2
3/8” O.D.
316SS
304SS
5000 psi @ 1000ºF
345 bar @ 540ºC
3/8” O.D.
316SS
300 psi @ 650ºF
21 bar @ 345ºC
4500 psi @ 1000ºF
310 bar @ 540ºC
FLF-6222
450 psi @ 650ºF
31 bar @ 345ºC
FXF-6223
NR = Not recommended for steam samples
5
Install Kit
TRB
Series
For boilers rated below 600 psi (41 bar): Liquid Samples Only
Specifications - TRB Series
Tube
Material
Model No.
Shell Design
Tube Design
TRB-4222
250 psi @ 450ºF
17 bar @ 232ºC
2000 psi @ 635ºF
140 bar @ 335ºC
WSW
Series
Shell
Material
1/4” O.D. SS* 304SS
Area
Weight
1.2 ft2
0.11m2
9 lbs
4 kg
Part
Number
Performance Data
Water
Steam
7-00016A
1
NR
Install Kit
1
* Tubing is 300 series stainless steel with chemical and physical properties equal to or better than T304.
For performance with water samples, see Column 1 on Page 7.
For viscous fluids and gases:
• Completely drainable
• All welded shell
Specifications - WSW Series
Model No.
Shell Design
Tube Design
Tube
Material
Shell
Material
WSW-8222
150 psi @ 300ºF
10 bar @ 150ºC
1200 psi @ 650ºF
85 bar @ 345ºC
1/2” O.D.
316SS
304SS
Area
Weight
2.5 ft2
0.23 m2
25 lbs
11.5 kg
Part
Number
Performance Data
Water
Steam
7-00712A
2
For performance with water samples, see Column 5 on Page 7. Consult factory for other fluids.
6
A
Install Kit
3
Water Performance
Consult factory for performance with other liquids.
Approach temperature = Sample outlet temperature minus cooling water inlet temperature.
English Units
Temp
ºF
Approach Temperature - ºF
Sample
Flow
cc/min
1
2
200
500
1000
1500
2000
6.0
7.6
16.2
25.0
400
600
650
705
Metric Units
Cooler Type
Temp
ºC
Approach Temperature - ºC
Sample
Flow
cc/min
1
2
3
4
5
0.4
0.8
2.0
4.7
0.4
1.6
1.5
2.2
0.1
0.5
0.8
0.6
3.4
10.9
14.8
15.4
100
500
1000
1500
2000
3.6
4.6
9.9
15.1
500
1000
1500
2000
7.6 0.5
18.4 0.9
42.0 4.8
X 11.8
0.7
1.3
1.9
4.9
0.1
0.6
0.4
1.0
9.0
18.9
16.1
24.5
200
500
1000
1500
2000
4.2
9.8
22.0
X
500
1000
1500
2000
4.7 0.5
32.0 1.7
X
8.7
X 21.3
0.9
0.6
3.2
8.6
0.2
0.4
0.5
1.8
X
X
X
X
315
500
1000
1500
2000
3000
3500
5.4 0.5 1.1 0.3
38.0 2.2 0.8 0.4
X 10.7 3.9 0.7
X 25.8 10.4 2.2
X
X 32.0 9.5
X
X 45.0 15.2
X
X
X
X
X
X
500
1000
1500
2000
3000
3500
8.3
X
X
X
X
X
X
X
X
X
X
X
0.6 1.5 0.5
3.7 1.4 0.4
16.3 6.3 1.2
37.0 15.6 3.7
X 29.0 8.2
X
X 22.4
345
373
Cooler Type
3
4
5
0.2
0.4
1.2
2.8
0.2
0.9
0.9
1.3
0.1
0.3
0.5
0.3
2.1
6.6
8.8
8.9
0.3
0.5
2.5
6.2
0.4
0.8
1.0
2.7
0.1
0.4
0.2
0.6
4.4
10.2
8.9
13.1
500
1000
1500
2000
2.6 0.3
17.4 0.9
X
4.6
X 11.5
0.5
0.4
1.8
4.8
0.1
0.2
0.3
1.0
X
X
X
X
500
1000
1500
2000
3000
3500
3.0 0.3 0.6
21.0 1.2 0.5
X
5.8 2.2
X 14.1 5.9
X
X 17.8
X
X 25.0
0.1
0.2
0.4
1.3
5.4
8.6
X
X
X
X
X
X
500
1000
1500
2000
3000
3500
5.1
X
X
X
X
X
0.3 0.9 0.3
2.3 0.9 0.3
9.8 4.0 0.8
22.0 9.7 2.4
X 17.5 5.2
X
X 13.8
X
X
X
X
X
X
Cooling Water Values for Above Data
Flow - GPM
3
5
12
12
12
Flow - LPH
700 1200 2700 2700 2700
Pressure drop–psi
1
2
9.5
10
2
Pressure drop–bar 0.07
0.14 0.66 0.69 0.14
Pressure Drop vs. Flow through a Sample Cooler
Pressure Drop (PSI)
Temperature ºF
Inlet Sample Pressure (PSIA)
Pressure Drop (BAR)
SAMPLE PRESSURE DROP
Inlet Sample Pressure (BARA)
Temperature ºC
TEMPERATURE RISE AFTER PRESSURE REDUCTION
Flow (cc/min)
Performance data are for samples before pressure reduction. After
pressure reduction, sample temperature may rise per the curve
above.
7
Saturated Steam Performance
Approach temperature = Sample outlet temperature minus cooling water inlet
SENTRY : World
Leader in Sampling
Components &
Systems
Nuclear and Fossil Sample Systems
Standard and ASME Sample
Coolers
Variable Pressure Reducing
Elements
Back Pressure Regulating/Relief
Valves
Sequencers & Valve Manifolds
Cooling Water Systems
Single Line Sample Systems
Post Accident Sample Systems
(PASS)
Resin Columns
Corrosion Products Samplers
Process Sampling Systems
Closed Loop
Fixed Volume
Low Emissions
Custom Design
Process Sample Coolers
Single Coil
Multi Coil
Brazed Plate
Carbon Canisters
English Units
Pressure
psig
Sample
Flow
cc/min
Metric Units
Approach Temperature - ºF
A
Cooler Type
B
C
Pressure
barg
Sample
Flow
cc/min
Approach Temperature - ºC
A
Cooler Type
B
C
500
500
1000
1500
2000
2.4
14
90
2.0
5.7
19.0
1.5
2.9
34
500
1000
1500
2000
1.3
7.8
50
1.1
3.2
11.0
0.83
1.6
1000
500
1000
1500
2000
1.8
8.2
47
2.0
4.1
12.0
40.0
0.5
0.4
70
500
1000
1500
2000
0.99
7.8
50
1.1
3.2
11.0
0.83
1.6
1500
500
1000
1500
2000
1.7
6.5
35
93
2.0
3.4
9.6
28.0
0.7
1.5
5.9
105
500
1000
1500
2000
0.94
3.6
19
52
1.1
1.9
5.3
16.0
0.39
0.83
3.3
2000
500
1000
1500
2000
1.6
5.7
28
73
2.1
3.0
9.0
24.0
0.4
0.6
1.5
140
500
1000
1500
2000
0.89
3.2
16
41
1.2
1.7
5.0
13.0
0.22
0.33
0.83
2500
500
1000
1500
2000
1.6
5.3
25
61
2.2
2.9
8.4
22.0
0.5
1.3
4.7
170
500
1000
1500
2000
0.89
2.9
14
34
1.2
1.6
4.7
12.0
0.28
0.72
2.6
3100
500
1000
1500
2000
1.7
5.3
22
50
2.7
2.2
8.4
20.0
0.5
1.1
3.1
215
500
1000
1500
2000
0.94
2.9
12
28
1.5
1.2
4.7
11.0
0.28
0.61
1.7
Cooling Water Values for Above Data
Flow - GPM
7
12
12
Flow - LPH
1590
2725
2725
Pressure drop - psi
3
5.2
7
Pressure drop - bar
0.21
0.36
0.5
Accessories
Installation Kits
Cooler
Type
1
2
3
4
5
6
Description
1/4” x 1/4” Compression Unions
3/8” x 3/8” Compression Unions
1/2” x 1/2” Compression Unions
TRB Gasket
TF Gasket
FF Gasket
Sentry Equipment Corporation
Cooler Fittings
Part
Number
6-03370A
6-03370D
6-03370E
2-00602B
2-03800B
2-03800A
For more information contact:
856 E Armour Rd • PO Box 127
Oconomowoc, WI 53066
Phone: 262-567-7256 • Fax: 262-567-4523
Web Page: http://www.sentry-equip.com
E-mail: sales@sentry-equip.com
Bulletin 4.10 • Rev. 2 • 4/00
© Sentry Equipment Corp 2000