1. No category

Model SC
Sample Coolers
SAMPLE COOLERS
CONTENTS
FEATURES AND BENEFITS ............................................................................................................................. H14-2 PRODUCT OFFERING ...................................................................................................................................... H14-2 DIMENSIONS AND RATINGS ........................................................................................................................... H14-3 ENGINEERING DATA ........................................................................................................................................ H14-3 SAMPLE SPECIFICATIONS ............................................................................................................................H14-10 ILLUSTRATIONS
Figure H14-1. SC-22 Dimensions....................................................................................................................... H14-4 Figure H14-2. SC-22 Panel ................................................................................................................................ H14-5 Figure H14-3. SC-22 Performance Curves ........................................................................................................ H14-6 Figure H14-4. SC-42 Dimensions....................................................................................................................... H14-7 Figure H14-5. SC-42 Performance Curves ........................................................................................................ H14-8 TABLES
Table H14-1. Sample Cooler Ratings ................................................................................................................. H14-3 This section contains information on Cleaver-Brooks sample coolers. The Model SC22
and SC42 Sample Coolers are used to cool boiler water samples under pressure so that
an accurate sampling can be made. When boiler water samples are taken without being
properly cooled (while under boiler pressure), as much as 20% of the sample can flash to
steam, causing inaccurate measurement of boiler water quality.
Section H14-1
Rev. 11-09
Model SC
Sample Coolers
FEATURES AND BENEFITS
Heavy Duty All Stainless Steel Wetted Parts:
•
SC-22 cools boiler water samples up to 635 °F and 2000 psig.
•
SC-42 cools boiler water samples up to 1000 °F and 5000 psig.
True Counterflow Cooling:
•
Effective baffling on the shell side produces full counter flow with high cooling water
flow and minimum pressure drop, vibration and scaling.
•
Proper temperature achieved.
•
SC-22 3-9/16" square x 5-1/2" long compact size. Easily mounted in cooling water
piping without using brackets or special supports.
•
SC-42 3-9/16" square x 11-1/4" long mounted in cooling water piping without using
brackets or special supports.
•
Single continuous tube with no joints assures long, maintenance free operation.
•
Shell can be easily removed for inspection and/or cleaning without disconnecting
sample water lines.
•
Largest heat transfer surface per unit of cost of any sample coolers.
Compact Design:
Stainless Steel Coil:
Removable Shell:
Lowest Cost:
PRODUCT OFFERING
The sample cooler is a low-pressure-drop system for monitoring boiler water quality
without shutting down the boiler system. A simple, compact design cools samples with
minimum disturbance to system pressure. The 316 stainless steel tubing is a continuous,
jointless, coil arrangement. Tubing is maintenance-free
The design has baffling on the shell side to achieve high cooling water flow, minimizing
pressure drop, vibration and scaling. The shell can be easily removed for inspection
and/or cleaning without disconnecting sample or water lines.
Section H14-2
Rev. 11-09
Model SC
Sample Coolers
SC-22
Rated for 635 °F at 2000 psig. Shell is 304 stainless steel, rated at 450 °F, 250 psig.
SC-42
Rated for 1000 °F at 5000 psig. Shell is 304 stainless steel, rated at 650 °F, 450 psig.
SC-22 Panel
The SC-22 is available in a pre-assembled panel mounted kit including:
•
Stainless steel mounting panel
•
Cooling water inlet and outlet valves
•
Sample inlet metering valve and isolation valve
•
Stainless steel sink with drain
DIMENSIONS AND RATINGS
Dimensions for Model SC-22 are shown in Figure H14-1, and for the SC-22 Panel in
Figure H14-2. Figure H14-4 shows dimensions for Model SC-42. Ratings are shown in
Table H14-1.
ENGINEERING DATA
Refer to Figure H14-3 (SC-22) and Figure H14-5 (SC-42) for performance curves. These
diagrams show the relationship of outgoing sample temperature to incoming cooling
water temperature for various sample temperatures (diagonal lines) and flow rates.
Example: The water sample is 1/4 gpm (946 cc/min) at 400 °F and is to be cooled to less
than 100 °F and the cooling water is 95 °F. Follow the dotted line at 0.25 gpm to 400 °F
inlet temperature. Read 18 °F temperature approach. Sample pressure drop will be
approximately 6.5 psig. Sample will cool to 88 °F, (70 °F coolant + 18 °F approach).
Table H14-1. Sample Cooler Ratings
MODEL
NO.
SHELL
DESIGN
TUBE
DESIGN
TUBE
MATERIAL
SHELL & HEAD
MATERIAL
AREA
WEIGHT
SC-22
250 psig @
450°F
2000 psig @
635°F
1/4" OD SSA
304 SS
1.2 sq-ft
9 lbs
SC-42
450 psig @
650°F
5000 psig @
1000°F
1/4” OD
316 SS
304 SS
2.4 sq-ft
12 lbs
A. Tubing is 300 series stainless steel with chemical and physical properties equal to, or better than T304.
Section H14-3
Rev. 11-09
Model SC
Sample Coolers
1 1/2 [37mm]
3/8 [10mm] FEMALE NPT
COOLING WATER INLET.
1 1/8 [28mm]
3 9/16 [90mm]
SQUARE
TYP.
2 3/4 [70mm]
TYP.
1/2 [12mm]
1 5/16 [33mm]
3/8 [10mm] FEMALE NPT
COOLING WATER OUTLET.
1 13/16 [45mm]
5/16 [8mm]
SAMPLE INLET
1/4 [6mm] O.D. TUBE.
SAMPLE OUTLET
1/4 [6mm] O.D. TUBE.
2 1/4 [57mm]
R1/4 [R6mm]
3 [76 mm]
5 1/2 [140 mm]
MOUNTING BRACKET
(SUPPLIED WITH EACH COOLER
TO BE SHIPPED LOOSE)
3/8 [10mm] FEMALE NPT
COOLING WATER INLET
PLUG SHIPPED LOOSE
Figure H14-1. SC-22 Dimensions
Section H14-4
Rev. 11-09
Model SC
ITEM
1
2
3
4
5
6
7
Sample Coolers
DESCRIPTION
COOLING WATER OUTLET GLOBE VALVE
SAMPLE COOLER MODEL SC-22
COOLING WATER INLET BALL VALVE
SAMPLE INLET ISOLATION VALVE
SAMPLE THROTTLING METERING VALVE
TYGON TUBE
SINK DRAIN, 1" NPS
RATINGS:
PRESSURE............ 250 psi
TEMPERATURE .... 405 °F
Figure H14-2. SC-22 Panel
Section H14-5
Rev. 11-09
Model SC
Sample Coolers
MODEL SC-22 (2.4 SQ-FT)
3 GPM COOLING WATER
1 PSIG PRESSURE DROP
SAMPLE
PRESSURE
DROP
(PSIG) 50
40
30
25
20
15
10
7
5
3
50
20
10
2
1
.3
APPROACH TEMPERATURE °F Figure H14-3. SC-22 Performance Curves
Section H14-6
Rev. 11-09
Section H14-7
1 3/4" [44]
3/4" FNPT COOLING
WATER INLET
3 7/16" [87]
11 1/4" [286]
4 3/8" [111]
3/4" [19]
3 9/16" [90]
(2) 7/16" x
3/4" MTG. SLOTS
2 1/4" [57]
1 13/16" [45]
SAMPLE OUTLET
3 9/16" [90]
MOUNTING BRACKET
1/4" [6]
SAMPLE INLET
1 1/4" [32]
13/16" [21]
1" [25] REF.
1/2" FNPT COOLING WATER
OUTLET
2 3/4" [70]
3 13/16" [97]
1 1/8" [28]
7/8" [22]
4" [102]
Model SC
Sample Coolers
Figure H14-4. SC-42 Dimensions
Rev. 11-09
Model SC
Sample Coolers
GPM
LB/
HR
SAMPLE
PRESSURE
DROP
(PSIG) MODEL SC-22
3 GPM COOLING WATER
1 PSIG PRESSURE DROP
SAMPLE DATA
CC/
MIN
2000
.5
250
.4
200
.3
150
25
20
15
1500
10
8
1000
6
.2
100
4
500
.1
2
50
100
70
40
30
20
10
5
APPROACH TEMPERATURE °F
Figure H14-5. SC-42 Performance Curves
Section H14-8
Rev. 11-09
Model SC
Sample Coolers
Notes
Section H14-9
Rev. 11-09
Model SC
Sample Coolers
SECTION H14
SAMPLE COOLERS
SAMPLE SPECIFICATIONS
1.1
GENERAL
The following sample specifications are provided by Cleaver-Brooks to assist you in
specifying your customer’s requirements.
A. SC-22
1. Furnish _____ Cleaver-Brooks Model SC-22 sample cooler(s) consisting of 304
stainless steel head and shell, jointless coiled T304 stainless steel tubing, and a
carbon steel mounting bracket.
2. The sample cooler shall be of compact bolted design and shall require no larger
space than 3-9/16" square x 5-1/2". The tubing and shell shall be removable for
cleaning without disturbing connections. The cooling water connections shall be
3/8" FPT and the sample tube connections shall be 1/4" OD.
3. The tubing shall be rated at 2000 psig at 635 °F. The surface area shall be 1.2
sq-ft.
B. SC-22 PANEL
1. Furnish _____ Cleaver-Brooks Model SC-22 Panel pre-assembled kit. Includes
Model SC-22 sample cooler as specified in Item A above, and the following
additional equipment.
2. 12" x 24" stainless steel mounting panel.
3. Sample throttling metering valve and sample inlet isolation valve.
4. Cooling water outlet globe valve and inlet ball valve.
5. Stainless steel sink with 1" NPS drain fitting.
C. SC-42
1. Furnish _____ Cleaver-Brooks Model SC-42 sample cooler(s) consisting of 304
stainless steel head and shell, jointless coiled T304 stainless steel tubing, and a
carbon steel mounting bracket.
2. The sample cooler shall be of compact bolted design and shall require no larger
space than 3-9/16" square x 11". The tubing and shell shall be removable for
cleaning without disturbing connections. The cooling water inlet connection shall
be 3/4" FPT and the cooling water outlet connection shall be 1/2" FPT. The
sample tube connections shall be 1/4" OD.
3. The tubing shall be rated at 5000 psig at 1000 °F. The surface area shall be
2.4 sq-ft.
Section H14-10
Rev. 11-09
Model SC
Sample Coolers
Notes
Section H14-11
Rev. 11-09