Emerson CSB400 Series User manual
CSB400 Series
D103123X012
Instruction Manual
Form 5836
March 2010
!
®
Figure 1. Typical CSB400 Pressure Reducing Regulators
CSB400 Series
2
This Instruction Manual provides installation,
maintenance, and parts ordering information for the
CSB400 Series regulators. Instructions and parts
lists for other equipment mentioned in this instruction
manual are found in separate manuals.
CSB400 Series regulators are typically installed on
industrial and commercial applications. See Figure 2
for Available Congurations. Low, Medium, and High
outlet pressure constructions are available via
Types CSB400, CSB420, and CSB450, respectively,
that provide outlet setpoints ranging from 17 mbar to
3,0 bar (7-inches w.c. to 43.5 psig). Also available are
upstream monitoring congurations such as
Types CSB410 and CSB430, which are installed
upstream of the primary regulator to provide
overpressure protection.
Additional overpressure protection options include
Types CSB403 and CSB423, which offer True-
Monitor™ protection provided by an integral monitor
module installed on the inlet side of the valve
body. This Integral Monitor assumes control of the
pressure to the downstream system should the
primary regulator fail to regulate. The Types CSB404,
CSB424, and CSB454 are examples of CSB400
Series congurations that offer a slam-shut module
that shuts off the ow of gas to the downstream
system in the event of outlet pressure rising above or
falling below the predened levels due to a failure.
Optional token relief is available, which acts as a
low capacity internal relief valve to relieve minor
overpressure situations due to nicks or other minor
damage to the orice or disk, or due to thermal
expansion of the downstream system.
Internal, external, or dual outlet pressure registration
is available. Constructions with dual or external
registration require an external control line / sense line.
The Specications section lists the specications for the
CSB400 Series Regulators. The following information is
stamped on the nameplate of CSB400 Series: Type and
Class, Maximum Outlet Pressure, and Spring Range.
C S B 4
0 [Outlet Pressure: 17 to 100 mbar (7 to 40-inches w.c.)]
1 [Outlet Pressure: 17 to 100 mbar (7 to 40-inches w.c.)]
2 [Outlet Pressure: 100 to 517 mbar (40 to 208-inches w.c.)]
3 [Outlet Pressure: 100 to 517 mbar (40 to 208-inches w.c.)]
5 [Outlet Pressure: 0,50 to 3,0 bar (7 to 43.5 Psig)]
0
3
4
D
E
I
N
T
Example: Type number Type CSB400 regulator constructed for medium pressure applications, with Type VSX4 slam-shut module, Dual
pressure registration, and Internal Token relief.
1. Not available with Integral Monitor option.
2. Not available with Integral Monitor or Token Relief option.
3. Available with External Pressure Registration only.
4. Reference Instruction Manual D103126X012 for information regarding the Type TM600 Integral Monitor module.
5. Reference Instruction Manual D103127X012 for information regarding the Type VSX4 Slam-shut module.
Figure 2. Available Congurations
CSB400 Series
3
-20° to 60°C (-4° to 140°F)
-30° to 66°C (-20° to 150°F)
Internal, External, or Dual (Internal and External)
Type CSB400: 4 kg (9 pounds)
Type CSB403: 9 kg (20 pounds)
Type CSB404: 5 kg (11 pounds)
Add 4 kg (9 pounds) to
threaded weights listed above
The CSB400 Product Series is in conformity with
the Pressure Equipment Directive PED 97/23/EC.
The exceptions to this previous statement are
the Types CSB403 and CSB423. Both of these
Types are not yet certied to conform with the
PED Directive.
Pressure regulator does not require any
supplementary upstream safety accessory for
protection against overpressure compared with
its design pressure PS, when upstream reducing
station is sized for a max downstream incidental
MIPd<= 1,1 PS.
See Table 1
See Figure 2
Differential Strength (DS)
AC 5/10
Up to SG10
Fail Open (FO)
See Table 4
See Table 2
See Table 2
See Table 5
See Table 6
See Table 7
4,0 bar (58 psig)
0,35 bar (5 psig)
above outlet pressure setting
3,0 bar (43.5 psig)
1 NPT
17,5 mm (11/16-inch)
1. The pressure/temperature limits in this Instruction Manual or any applicable standard limitation should not be exceeded.
2. Standard token relief set values listed in Table 7 are based on -20° to 60°C (-4° to 140°F).
3. Product has passed Regulator Technologies testing for lockup, relief start-to-discharge and reseal down to -40°.
Table 1. PED Information
CSB400, CSB410, CSB420,
CS430, CSB450 Base regulator IGroups 1 and 2 according to PED
97/23/EC, 1st and 2nd family gas
according to EN 437, or other gases
(compressed air, nitrogen). The gas
must be non-corrosive, clean (ltration
on inlet side necessary) and dry.
CSB404, CSB414, CSB424,
CSB434, CSB454 Regulator with Slam-shut Module IV
EN334, EN14382
CSB400 Series
4
Table 4. Body Sizes, Material, End Connections, and Pressure Ratings
Ductile Iron
1 1
NPT
100 4
20 290
1-1/4 1-1/4 114 4.5
1-1/2 1-1/2 114 4.5
2 2 127 5
1 1
Rp
100 4
11-1/4 114 4.5
1-1/4 1-1/4 114 4.5
1-1/2 1-1/2 114 4.5
2 2 127 5
2 (DN 50) 2 (DN 50) CL125 FF / CL150 FF 254 10
PN 10/16 254 10 16 232
1-1/2 (DN 40(1))1-1/2 (DN 40) PN16 Slip-On 184 7.24 16 232
12-1/4 Rp x GAZ 105 4.1
20 290
Steel
1 1
NPT
100 4
1-1/4 1-1/4 114 4.5
1-1/2 1-1/2 114 4.5
1 1
Rp
100 4
1-1/4 1-1/4 114 4.5
1-1/2 1-1/2 114 4.5
1. Uses Rp 1-1/2 x 1-1/2 threaded body with PN16 slip-on anges
PS
CSB400, CSB404 4 58 4 58
CSB420, CSB424 4 58 4 58
CSB450, CSB454 4 58 4 58
CSB410, CSB414 4 58 4 58
CSB430, CSB434 4 58 4 58
CSB403, CSB423 4 58 4 58
1. For the integral strength (IS) version, the maximum value of PS and Pumax should be similar to the PSD used for the differential (DS) version.
Table 2. Integral Strength (IS) Pressure Ratings
PS
CCCtFF
CSB400, CSB404 4 58 10 145 12 174
428 11 43 1.16 0.84 0.90
CSB420, CSB424 4 58 16 232 20 290
CSB450, CSB454 4 58 16 232 20 290
CSB410, CSB414 4 58 10 145 10 145
CSB430, CSB434 4 58 10 145 10 145
CSB403, CSB423 4 58 10 145 10 145
1. If ordered with a PN16 anged connection, PS rating is a maximum of 16 bar (232 psig). PS rating may be lower than 16 bar (232 psig) as indicated.
Table 3. Differential Strength (DS) Pressure Ratings and Flow and Sizing Coefcients
CSB400 Series
5
Table 5. CSB400 Series Primary Regulator Outlet Pressure Ranges
CSB403
20 8.0 Pink 35 14 69 28 GE30189X012 Blue
35 14 Orange Stripe 52 21 69 28 GE30196X012 Green
69 28 Tan 103 41 138 55 GE30225X012 Orange
CSB423
138 55 Orange 172 69 207 83 GE30190X012 Black
207 83 Dark Blue 276 111 345 139 GE30197X012 Yellow
345 139 Red 414 166 483 194 GE33121X012 Red
1. Integral Monitor setpoints shown represent the minimum Monitor setpoint for the Primary regulator shown. Higher monitor setpoints can be chosen, e.g., for a Primary regulator
setpoint of 20 mbar (8-inches w.c.), the Integral Monitor can also be set at 35 mbar (14-inches w.c.), 52 mbar (21-inches w.c.), or higher.
Table 6. Primary Regulator and Integral Monitor Outlet Pressure Ranges
PATENT
PENDING TS
REGULATOR SLAMSHUT SERIAL NO.
TEMP CLASS DOM
PS FLUID GROUP CAT LOC
Std: EN334
TYPE PSD
Pumax Pmax
Matl
Wds Case
Failure Mode
REGULATOR
Std: EN14382
SLAMSHUT
RELAIS Pu Max
RELAY Max IN
TYPE PSD CLASS
Wdso Wdsu
OP range UP range
MATL P max
CASE Max OUT
DN SEAT BODY
TYPE NO.
PATENT PENDING DOM
LOC
MAX EMER
OUT OUT
MAX OP
MAX IN ORIFICE SPG RANGE
RELIEF
SERIAL NO.
PN MATL
0062
PED mfg: Gallardon,
France
PED mfg: Gallardon,
France
Figure 3. CSB400 Series Regulator, Slamshut, and Integral Monitor Nameplates and Labels
PATENT
PENDING TS
REGULATOR SLAMSHUT SERIAL NO.
TEMP CLASS DOM
PS FLUID GROUP CAT LOC
Std: EN334
TYPE PSD
Pumax Pmax
Matl
Wds Case
Failure Mode
REGULATOR
Std: EN14382
SLAMSHUT
RELAIS Pu Max
RELAY Max IN
TYPE PSD CLASS
Wdso Wdsu
OP range UP range
MATL P max
CASE Max OUT
DN SEAT BODY
TYPE NO.
PATENT PENDING DOM
LOC
MAX EMER
OUT OUT
MAX OP
MAX IN ORIFICE SPG RANGE
RELIEF
SERIAL NO.
PN MATL
0062
PED mfg: Gallardon,
France
PED mfg: Gallardon,
France
CSB400,
CSB403,
CSB404,
CSB410,
CSB414
17 to 24 mbar 6.8 to 9.6-inches w.c. GE30191X012 Pink 2,03 0.080 152 6.00
24 to 35 mbar 9.6 to 14-inches w.c. GE43955X012 Orange Stripe 2,19 0.086 110 4.35
35 to 60 mbar 14 to 24.1-inches w.c. GE30201X012 Dark Green 3,23 0.127 110 4.35
54 to 100 mbar 21.7 to 40-inches w.c. GE30202X012 Tan 2,85 0.112 127 5.00
CSB420,
CSB423,
CSB424,
CSB430,
CSB434
100 to 160 mbar 1.45 to 2.3 psig GE35081X012 Purple Stripe 3,86 0.152 124 4.90
160 to 300 mbar 2.3 to 4.4 psig GE30192X012 Dark Blue 4,27 0.168 118 4.65
276 to 517 mbar 4 to 7.5 psig GE33121X012 Red 4,93 0.194 118 4.65
CSB450,
CSB454
0,5 to 1 bar 7.3 to 14.5 psig GE30203X012 Light Blue 5,59 0.220 102 4.00
1 to 3 bar 14.5 to 43.5 psig GE30204X012 Light Green 6,73 0.265 100 3.95
CSB400 Series
6
Table 7. Regulator and Slam-shut OPSO and UPSO Pressure Ranges
If a non-standard setpoint is needed, see the following example for the proper use of Table 7.
Non-standard setpoint = 140 mbar (2 psig), using the value presented above, the factory set of the token relief
will be 1.3 x 140 = 182 mbar (2.6 psig). The factory OPSO and UPSO set pressures are 165% and 50% of the
non-standard setpoint, respectively. The resulting settings are: OPSO = 231 mbar (3.4 psig) and UPSO =
70 mbar (1 psig).
P
P
CSB404,
CSB414
17 to 24
(0.25 to 0.35)
20 (0.29) 34 (0.49)
170% 215% 8 (0.12)
43 (0.62)
215% 270%
10 (0.15)
50% 56%
21 (0.30) 36 (0.52) 45 (0.65) 11 (0.16)
24 to 35
(0.35 to 0.51)
27 (0.39) 41 (0.59)
150% 160% 10 (0.12)
51 (0.74)
190% 200%
14 (0.20)
50% 60%30 (0.44) 45 (0.65) 57 (0.83) 15 (0.22)
35 (0.50) 53 (0.76) 67 (0.96) 18 (0.26)
35 to 60
(0.51 to 0.87)
50 (0.70) 70 (1.0)
140% 158% 16 (0.23)
90 (1.3)
180% 200%
25 (0.36)
50% 70%
60 (0.87) 84 (1.2) 108 (1.57) 30 (0.44)
60 to 100
(0.87 to 1.5)
75 (1.10) 98 (1.4)
130% 140% 20 (0.29)
128 (1.85)
170% 190%
38 (0.54)
50% 70%
100 (1.5) 130 (1.9) 170 (2.47) 50 (0.73)
CSB424,
CSB434
100 to 160
(1.5 to 2.3)
150 (2.2) 195 (2.8)
130% 140% 40 (0.58)
248 (3.59)
165% 175%
75 (1.1)
50% 70%
160 (2.3) 208 (3.0) 264 (3.83) 80 (1.2)
160 to 300
(2.3 to 4.4) 300 (4.4) 375 (5.4) 125% 140% 50 (0.73) 450 (6.53) 150% 165% 150 (2.2) 50% 70%
300 to 500
(4.4 to 7.3) 500 (7.3) 625 (9.1) 125% 140% 60 (0.87) 700 (10.2) 140% 180% 250 (3.6) 50% 70%
CSB454(3)
500 to 1000
(7.3 to 14.5) 1000 (14.5) - - - - - - - - - - - - - - - - 1320
(19.2) 112% 140% 500 (7.3) 50% 70%
1000 to 3000
(14.5 to 43.5)
1200 (17.4) - - - - - - - - - - - - - - - - 1600
(23.2) 112% 133% 600 (8.7)
50% 70%
1500 (21.6) - - - - - - - - - - - - - - - - 1900
(27.6) 112% 127% 750 (10.9)
2000 (29.0) - - - - - - - - - - - - - - - - 2400
(34.8) 112% 120% 1000
(14.5)
3000 (43.5) - - - - - - - - - - - - - - - - 3400
(49.3) 112% 113% 1500
(21.8)
1. Standard factory set shown. Factory set is at the minimum value of the range indicated. Range indicated is a percentage of Setpoint. Percentage indicated is based on the Set
Pressure Range in which that setpoint resides. If non-standard sets are required, ensure to adhere to the limitations presented in Table 6, including Token Relief Set Range, OPSO
and UPSO set range and Minimum Required difference between Token Relief and OPSO Set.
2. Minimum Token Relief values apply to -20° to 60°C (-4° to 140°F) service temperatures. For service below -20°C (-4°F), add 8 mbar (0.12 psig) to the minimum Token Relief value listed.
3. Token Relief is not available for the Type CSB454.
CSB400 Series
7
Figure 4. CSB400 Series Dimensions
25 1 NPT or Rp 100 4 97 3.8
32 1-1/4 NPT or Rp 114 4.5 97 3.8
40 1-1/2 NPT or Rp 114 4.5 97 3.8
50 2 NPT or Rp 127 5 97 3.8
50 2 CL125 FF / CL150 FF or PN 10/16 254 10 97 3.8
25 x 32 1 x 1-1/4 Rp 114 4.5 97 3.8
25 x 57 1 x 2-1/4 Rp x GAZ 105 4.1 20 0.8
40 1-1/2 PN 16 Slip-On 184 7.2 97 3.8
B
a
a
a
a
a
GE34270
CSB400 Series
8
Figure 5. Type CSB400DT Dual Registered Regulator Operational Schematic
M1143
Figure 6. Type CSB403IT, Internally Registered Primary Regulator with Externally Registered Integral Monitor Operational Schematic
M1145
Type CSB400EN Regulator without Relief
MXXXX
May 2008 Type CSB400
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
Type CSB403IT Regulator with Token Relief and Monitor
MXXXX
May 2008 Type CSB403
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
CSB400 Series
9
Figure 7. Type CSB404ET, Externally Registered Regulator and Slam-Shut Operational Schematic
Type CSB400EN Regulator without Relief
MXXXX
May 2008 Type CSB400
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
M1146
M1146
Refer to Figure 5. When downstream demand
decreases, the pressure under the regulator
diaphragm increases. This pressure overcomes
the regulator setting (which is set by the regulator
control spring). Through the action of the pusher post
assembly, lever, and valve stem, the valve disk
moves closer to the orice and reduces gas ow.
If demand downstream increases, pressure under
the regulator diaphragm decreases. Spring force
pushes the pusher post assembly downward, the
valve disk moves away from the orice, and the gas
ow increases downstream as the regulator opens in
response to the decreased pressure underneath the
regulator diaphragm.
Type numbers with a “T”, for example, Type CSB400IT,
provide a token or low capacity relief. The Token relief
provides relief from minor overpressure caused by
nicks or dents on the orice or by thermal expansion
of gas in the downstream line. Token relief also
provides a token or signal, in the form of odor, that an
overpressure situation is occurring.
Type CSB403 combines the operation of a
conventional two-regulator wide-open monitor set into
one body, see Figure 6. The Integral True-Monitor™
is installed on the inlet side of the body and serves to
throttle ow and maintain an acceptable downstream
pressure in the case where the primary regulator
ceases to regulate downstream pressure. During
normal operation the Integral Monitor is in a wide-open
state as its setpoint is set higher than the primary
regulator. See Table 6 for guidance regarding the
setpoints of the regulator and associated integral
monitor sets. If the downstream pressure should rise
to the setpoint of the Internal Monitor due to a loss of
pressure control by the primary regulator, the Integral
Monitor will assume control and regulate the ow to
the downstream system. If token relief is present, it
will relieve a small amount of gas to the atmosphere
as an indication that the Integral Monitor is controlling
the downstream pressure.
The Type CSB403 provides the option of internal or
external downstream pressure registration. External
registration requires a downstream sensing line. See
Figure 10 for guidance regarding installation of the
downstream control line. Refer to the Type TM600
Instruction Manual for additional details of integral
monitor operation.
CSB400 Series
10
The Type VSX4 slam-shut module on the
Type CSB404 regulator is a fast acting shut-off
device that provides overpressure (OPSO) or over
and underpressure (OPSO / UPSO) protection
by completely shutting off the ow of gas to the
downstream system. See Table 7 for guidance
regarding the typical setpoints of the regulator and
associated slam-shut OPSO and also the combined
OPSO and UPSO setpoints. The Type VSX4’s actions
are independent of the Type CSB404 regulator and
of variations to the inlet pressure. The Type VSX4
comes standard with external downstream pressure
registration, with the option for internal registration only
on the Rp 1 x 2-1/4 GAZ body. External registration
requires a downstream sensing line. See Figure 11
for guidance regarding installation of the downstream
control line.
The Type VSX4 shut-off disk is normally in the open
(reset) position, see Figure 7. If the downstream
pressure below the slam-shut diaphragm increases (or
decreases) until it reaches the slam-shut setpoint, this
diaphragm moves upward (or downward) to release
the trip mechanism which allows the spring force on
the stem to push the disk against the seat, shutting off
all gas ow. To reset the slamshut after gas has been
shut off, refer to the Type VSX4 Instruction Manual for
additional details.
Install in accordance with provisions of
EN12186 / EN12279.
!
Figure 8. CSB400 Series Regulator Installed with the Vent Pointed Downward and with a
Type 289H Relief Valve for High Capacity Relief
CSB400 Series
11
Before installing the regulator,
• Check for damage, which might have occurred
during shipment.
• Check for and remove any dirt or foreign material,
which may have accumulated in the regulator body.
• Blow out any debris, dirt, or copper sulfate in the
copper tubing and the pipeline.
• Apply pipe compound to the external threads of the
pipe before installing the regulator.
• Make sure gas ow through the regulator is in the
same direction as the arrow on the body. “Inlet” and
“Outlet” connections are clearly marked.
• Verify that:
- Equipment limits of utilization (PS, TS) correspond
to the desired operating conditions.
- The inlet is protected by an appropriate device(s) to
avoid exceeding the allowable limits (PS, TS).
• When designing a pressure reducing station using a
CSB regulator, make an analysis if it is necessary
to take into account the effects of wind, snow, and
temperature to avoid unnecessary load and
movement to the anges of the equipment.
• If needed, a support may be used under the piping
and regulator/slam-shut body to avoid excessive
pressure force on the regulator/slam shut.
• The installed regulator should be adequately
protected from vehicular trafc and damage from
other external sources.
• Install the regulator with the vent pointed vertically
down, see Figures 8 through 11. If the vent cannot
be installed in a vertically down position, the regulator
must be installed under a separate protective
cover. Installing the regulator with the vent down
allows condensation to drain, minimizes the entry
of water or other debris from entering the vent, and
minimizes vent blockage from freezing precipitation.
CSB400 Series
12
• Do not install the regulator in a location where
there can be excessive water accumulation or
ice formation, such as directly beneath a downspout,
gutter, or roof line of building. Even a protective
hood may not provide adequate protection in
these instances.
• Install the regulator so that any gas discharge
through the vent or vent assembly is over 0,91 m
(3 feet) away from any building opening.
Figure 9. Type CSB400 “Series Monitor” Regulator Downstream Control Line Installation
INLET PRESSURE
OUTLET PRESSURE
ATMOSPHERIC PRESSURE
INTERMEDIATE PRESSURE
Type CSB400ET with External Pressure Registration and
Token Relief Wide-Open Upstream Monitor Regulator
Some installations, such as in areas with heavy snowfall,
may require a hood or enclosure to protect the regulator
from snow load and vent freeze over.
CSB400 Series
13
Figure 11. Type CSB404 Downstream Control Line Installation
Figure 10. Type CSB403 Downstream Control Line Installation
M1062
M1063
CSB400 Series
14
!
CSB400 Series regulators with an “ET” or “EN” in the
type number use external pressure registration. To
communicate the downstream pressure to the regulator,
connect a downstream control line tubing to the
3/4 NPT control line tapping in the lower diaphragm
casing and connect the other end of the tubing
downstream of the regulator outlet with a minimum
distance of 4 times the outlet pipe diameter.
For Types CSB400 and CSB404 with external control
lines, use tubing with an outer diameter of 9,5 mm
(0.375-inch) or larger. For Types CSB420, CSB424,
CSB450, and CSB454 with external control lines, use
tubing with an outer diameter of 13 mm (0.5-inch)
or larger.
The Types CSB410, CSB414, CSB430, and CSB434
are dedicated wide-open monitoring regulators and are
installed upstream of a primary working regulator. Refer
to Figure 9 for installation of the downstream control
line. To communicate the downstream pressure to the
wide-open monitor regulator, connect a downstream
control line tubing to the 3/4 NPT control line tapping in
the lower diaphragm casing of the monitor regulator and
connect the other end of the tubing downstream of the
regulator outlet with a minimum distance of 4 times the
outlet pipe diameter.
For Types CSB410 and CSB414, use tubing with an
outer diameter of 9,5 mm (0.375-inch) or larger.
For Types CSB430 and CSB434, use tubing with an
outer diameter of 13 mm (0.5-inch) or larger.
Downstream Control Line Installation with
Integral Monitor
Refer to Figure 10. When installing the Types CSB403
and CSB423 regulators, connect downstream control
line tubing to the lower casing of the primary regulator,
and run the tubing downstream of the regulator outlet
with a minimum distance of 4 times the outlet pipe
diameter. Connect a second, separate downstream
control line tubing to the lower casing of the Integral
Monitor, and run the tubing downstream of the
regulator outlet with a minimum distance of 4 times
the outlet pipe diameter.
For Type CSB403 with external control lines, use tubing
with an outer diameter of 9,5 mm (0.375-inch) or larger
for both the primary regulator and Integral Monitor.
For Type CSB423 with external control lines, use tubing
with an outer diameter of 13 mm (0.5-inch) or larger for
both the primary regulator and Integral Monitor.
Downstream Control Line Installation with
Slamshut
Refer to Figure 11. When installing the Types CS404ET,
CS404EN, CSB424ET, CSB424EN, and CSB454EN
regulators, connect downstream control line tubing to
the lower casing of the regulator, and run the tubing
downstream of the regulator outlet with a minimum
distance of 4 times the outlet pipe diameter. Connect
a second, separate downstream control line tubing to
the lower casing of the slamshut, and run the tubing
downstream of the regulator outlet a minimum distance
of 4 times the outlet pipe diameter.
For Type CSB404 with external control lines, use tubing
with an outer diameter of 9,5 mm (0.375-inch) or larger
for the primary regulator and 6,4 mm (0.25-inch) or larger
for the slamshut.
For Types CSB424 and CSB454 with external control
lines, use tubing with an outer diameter of 13 mm
(0.5-inch) or larger for the primary regulator and 6,4 mm
(0.25-inch) or larger for the slamshut.
Installation with External Overpressure
Protection
If the regulator is used in conjunction with a Type 289H
relief valve, it should be installed as shown in Figure 8.
The outside end of the vent line should be protected
with a rainproof assembly. The Type 289H is typically
set 25 mbar (10-inches w.c.) higher than the outlet
pressure setting of the regulator, up to 75 mbar
(30-inches w.c.) outlet pressure. For pressure greater
than this, set the Type 289H 0,05 bar (0.75 psi) higher
than the outlet pressure setting of the regulator.
Vent Line Installation
The CSB400 Series regulators have a 1 NPT screened
vent opening in the spring case. If necessary to vent
escaping gas away from the regulator, install a remote
vent line in the spring case tapping. Vent piping should
be as short and direct as possible with a minimum
CSB400 Series
15
number of bends and elbows. The remote vent line
should have the largest practical diameter. Vent piping
on regulators with token relief must be large enough to
vent all relief valve discharge to atmosphere without
excessive backpressure and resulting excessive
pressure in the regulator.
For Types with optional Token relief, this low capacity
relief is located in the spring case of the Primary
Regulator. If necessary to vent escaping gas away,
install a remote vent line in the spring case tapping of
the Primarily Regulator as described above.
Periodically check all vent openings to be sure that
they are not plugged or obstructed.
CSB400 Series outlet pressure ranges are shown in
Table 5. Outlet pressure higher than 0,35 bar (5 psig)
above the setpoint may damage internal parts such as
the diaphragm head and valve disk.
With the downstream system depressurized, use the
following procedure to start up the regulator.
1. Check to see that all appliances are turned off.
2. Slowly open the upstream shut-off valve.
3. Check inlet and outlet pressure for correct values.
4. Check all connections for leaks.
5. Turn on utilization equipment and recheck
the pressures.
1. Remove the closing cap (key 60, Figure 17).
2. To increase the outlet setting, turn the adjusting
screw (key 65) clockwise. To decrease the outlet
setting, turn the adjusting screw counterclockwise.
3. Replace the closing cap.
1. Loosen the hex nut (key 58, Figure 17).
2. To increase the outlet setting, turn the adjusting
screw (key 65, Figure 17) clockwise. To decrease
the outlet setting, turn the adjusting screw
counterclockwise.
3. Tighten the hex nut.
When adjusting the primary regulator and Integral
Monitor for operation, ensure that the pressure
differences between the primary regulator and the
integral monitor shown in Table 6 are observed. For
example, if the primary regulator setpoint is set at
20 mbar (8-inches w.c.), then the Integral Monitor
should be set at a minimum of 35 mbar (14-inches w.c.)
or higher.
To test the Integral Monitor operation, the primary
regulator setpoint must be adjusted above the Integral
Monitor’s setpoint to simulate a failure of the primary
regulator. If the spring range of the primary regulator
is sufciently high, it can simply be adjusted above the
Integral Monitor’s setpoint by following step 2 above.
Otherwise, a different spring with a setpoint higher
than the Integral Monitor’s setpoint must be installed to
check the operation of the Integral Monitor.
When adjusting the primary regulator and slamshut for
operation, refer to Table 7 for the OPSO setpoints and
also the combined OPSO and UPSO setpoints of the
slamshut for a given regulator spring ranges.
Installation arrangements may vary, but in any
installation it is important that the valves be opened
CSB400 Series
16
or closed slowly and that the outlet pressure be
vented before venting inlet pressure to prevent
damage caused by reverse pressurization of the
regulator. The steps below apply to the typical
installation as indicated.
1. Open valves downstream of the regulator.
2. Slowly close the upstream shut-off valve.
3. Inlet pressure should automatically be released
downstream as the regulator opens in response to
the lowered pressure underside of the diaphragm.
4. Close outlet shut-off valve.
!
®
1. Remove the closing cap (key 60, Figure 12)
or loosen hex locknut (key 58, Figure 17).
Turn the adjusting screw (key 65) or nut
(key 58) counterclockwise to ease spring
(key 38) compression.
2. Remove the adjusting screw (key 65) and
spring (key 38).
3. Remove hex nuts (key 16, Figure 12) and cap
screws (key 15, Figure 12). Separate the upper
spring case (key 1) from the lower casing assembly
(key 9).
4. Slide the diaphragm assembly (key 55) away from
the body (key 70) to unhook the pusher post
(key 50) from the lever (key 10). Lift off the
diaphragm assembly (key 55).
5. a. For none relieving units such as the
Types CSB400IN and CSB400EN, unscrew the
cap (key 45), see Figure 13, high-pressure
Non-Relief and low-pressure Non-Relief
assemblies. The cap fastens the R.V. spring
seat (key 43) to the pusher post (key 50).
Unscrew the cap to separate the R.V. spring
seat (key 43), diaphragm assembly (key 55) and
pusher post (key 50).
b. For units with internal token relief such as
Type CSB400IT, refer to Figure 13, unscrew
the adjusting upper seat (key 47). This will
allow for removal of the relief spring (key 41),
R.V. spring seat (key 43), diaphragm assembly
(key 55) and pusher post (key 50).
6. Reassemble the spring case (key 1) unit in the
reverse order of the above steps. Before tightening
the cap screws (key 15) or stem (key 44) into the
pusher post (key 50), place the loosely-assembled
diaphragm assembly (key 55) into position in the
CSB400 Series
17
lower casing (key 9), being sure that the pusher post
(key 50) is hooked on the lever (key 10). Rotate the
diaphragm (key 55A) so that the diaphragm and
lower casing (key 9) holes are aligned. Tighten the
stem (key 44) or diaphragm retainer (key 45) for HP
and LP non-relief assemblies.
1. Remove the bolts (key 71, Figure 12) which hold
the lower spring casing (key 9) to the body (key 70).
Separate the lower spring casing (key 9) from the
body (key 70).
2. Check the body o-ring (key 21) for wear.
3. Remove the balanced port assembly (key 35,
Figures 12 and 14) from the body, make sure
to rotate the assembly toward the outlet of the
body as it’s being removed to clear the sense tube
from the body.
4. Examine the valve disk (key 35K) for nicks, cuts, and
other damage. If damage is present, it is
recommended to replace both the disk and also the
balanced port diaphragm (key (35F) and associated
diaphragm O-ring (key 35M), that comes into direct
contact with the inner ange of the balanced port
diaphragm. Start the process of replacing the disk by
disassembling the balanced port assembly. Remove
the four cap screws (key 35R) and then the cap
(key 35G).
5. Grasp the spring retainer (key 35C) and slide the
brazed housing (key 35A) away to expose the
diaphragm (key 35F) and disk (key 35K). Still
grasping the spring retainer (key 35C) insert a
5 mm (0.20-inch) Allen wrench into the disk screw
(key 35E) and unscrew.
6. Remove the disk (key 35K) and discard if damaged.
Slide the diaphragm O-ring (key 35M) off the stem
(key 35B) along with the diaphragm (key 35F). Slide
the new diaphragm over the stem in the same manner
that it was removed, make sure that it completely
contacts the surface of the inner retainer (key 35J).
7. Reassemble the Balanced Port assembly in reverse
order of the above.
8. Examine the seating edge of the orice (key 25)
If it is nicked or rough, replace the orice and
O-ring (key 27). If a slamshut or monitor is
installed on the backside of the body, refer to
the applicable Instruction Manual for inspection
and removal of the overpressure protection orice
(key 26) and O-ring (key 27).
9. Reassemble the regulator in reverse order of the
above steps.
As indicated by the square callouts in Figures 12 to
18, it is recommended that a good quality pipe thread
sealant be applied to pressure connections and ttings
and a good quality lubricant be applied to O-rings.
Also apply an anti-seize compound to the adjusting
screw threads and other areas as needed.
The type number, orice size, spring range, and
date of manufacture are stamped on the nameplate.
Always provide this information in any correspondence
with your local Sales Ofce regarding replacement
parts or technical assistance.
When ordering replacement parts, reference the key
number of each needed part as found in the following
parts list. Separate kit containing all recommended
spare parts is available.
Spare Parts (Repair Parts Kit include keys 12, 19,
21, 24, 27, 55, 62, 75, and 77)
Type CSB400 RCSB400X0012
Type CSB403 RCSB403X0012
Type CSB404 RCSB404X0012
1 Spring Case, Aluminum GE24555X012
2 Vent Screen, 18-8 Stainless steel T1121338982
3 Retaining Ring, Steel T1120925072
4 Stabilizer Guide, 304 Stainless steel GE27061X012
5 Stabilizer, Lustran®648 GE27063X012
6 Stabilizer Spring GE35010X012
7 Retainer Ring, Stainless steel GE27024X012
8 Stabilizer Screw, Zinc-plated steel (3 required) GE29724X012
9 Lower Casing, Aluminum GE24289X012
10 Lever, Steel
Types CSB400, CSB403, CSB404,
CSB410, and CSB414 GE28772X012
Types CSB420, CSB423, CSB424,
CSB430, CSB434, CSB450, and CSB454 GE28773X012
11 Valve Stem, Aluminum GE27812X012
12* O-ring, Nitrile (NBR)
External Registration Only 1E472706992
13 Lever Pin, 18-8 Stainless steel
Types CSB400, CSB403, CSB404,
CSB410, and CSB414 T14397T0012
Types CSB420, CSB423, CSB424, CSB430,
CSB434, CSB450, and CSB454 (2 required) T14397T0012
14 Lever Screw, Steel
Types CSB400, CSB403, CSB404,
CSB410, and CSB414 (2 required) GE34243X012
Types CSB420, CSB423, CSB424, CSB430,
CSB434 CSB450, and CSB454 (4 required) GE34243X012
15 Cap Screw, ISO CL8 (8 required) GE32059X012
16 Nut, ISO CL8 (8 required) GE32060X012
17 Union Ring, Aluminum GE26590X012
18 Snap Ring, 302 Stainless steel T1120637022
*Recommended spare part.
Lustran® is a marked owned by LANXESS Corporation
CSB400 Series
18
4
Figure 12. CSB400 Series Regulator Assembly
GE27692
44
CSB400 Series
19
19* O-ring, Nitrile (NBR) (2 required) 1K594906562
20 Stem Guide, Aluminum GE26027X012
21* O-ring, Nitrile (NBR) GE45216X012
22 Pipe plug, 3/4 NPT, Steel
Internal Registration Only GE34199X012
23 Screw (For external registration only),
Steel (2 required) 1E175828982
24* O-ring (For external registration only),
Nitrile (NBR) (2 required) 17A0960X012
25 Orice, Brass GE31321X012
26 OPP Orice 18 mm (0.69-inch)
With Integral Monitor Orice, Aluminum GE30003X012
With Slam-shut Orice, Brass GE28684X012
27* O-ring, Nitrile (NBR) 10A3802X022
35 Balanced Port Assembly
Standard GE31196X012
35A Brazed Housing GE31261X012
35B Stem, Stainless steel GE31191X012
35C Spring Retainer, Zinc-plated steel GE31189X012
35D Spring GE30193X012
35E Disk Screw, Zinc-plated steel GE31190X012
35F* Diaphragm, Nitrile (NBR) / Fabric GE30439X012
35G Cap, Brass GE31195X012
35H Outer Retainer, Brass GE31187X012
35J Inner retainer, Brass GE31186X012
35K* Disk Assembly, Brass / Nitrile (NBR) GE31185X012
35M O-ring, Nitrile (NBR) (2 required) 1E472706992
35N* O-ring, Nitrile (NBR) 1U879006562
35R Screw (4 required) GE25968X012
35S Pin, Zinc-plated steel GE31232X012
2-1/4 GAZ Body GE33822X012
35A Brazed Housing GE32505X012
35B Stem, Stainless steel GE31191X012
35C Spring Retainer, Zinc-plated steel GE31189X012
35D Spring GE30193X012
35E Disk Screw, Zinc-plated steel GE31190X012
35F* Diaphragm, Nitrile (NBR) / Fabric GE30439X012
35G Cap, Brass GE31195X012
35H Outer Retainer, Brass GE31187X012
35J Inner Retainer, Brass GE31186X012
35K* Disk Assembly, Brass / Nitrile (NBR) GE31185X012
35M O-ring, Nitrile (NBR) (2 required) 1E472706992
35N* O-ring, Nitrile (NBR) 1U879006562
35R Screw, Cap, Hex Socket (4 required) GE25968X012
38 Spring
17 to 24 mbar (6.8 to 9.6-inches w.c.), Pink GE30191X012
24 to 35 mbar (9.6 to 14-inches w.c.), Orange Stripe GE43955X012
35 to 60 mbar (14 to 24.1-inches w.c.), Dark Green GE30201X012
54 to 100 mbar (21.7 to 40-inches w.c.), Tan GE30202X012
100 to 160 mbar (1.45 to 2.3 psig), Purple Stripe GE35081X012
160 to 300 mbar (2.3 to 4.4 psig), Dark Blue GE30192X012
276 to 517 mbar (4 to 7.5 psig), Red GE33121X012
0,5 to 1 bar (7.3 to 14.5 psig), Light Blue GE30203X012
1 to 3 bar (14.5 to 43.5 psig), Light Green GE30204X012
40 Upper Spring Seat, Steel
High Pressure, Zinc-plated steel GE32501X012
41 Relief Valve Spring, 302 Stainless steel
Types CSB400, CSB403, and CSB404, Token GE30194X012
Types CSB420,CSB423, CSB424, Token GE42225X012
43 Relief Valve Spring Seat, Steel
Types CSB400, CSB420, Non-Relief GE27327X012
Types CSB450, Non-Relief GE31677X012
Types CSB400, CSB420, Token GE28947X012
44 Stem, Steel
Types CSB400, CSB420, Token GE30895X012
45 Diaphragm Retainer, Zinc-plated steel
Types CSB400, CSB420 GE30887X012
Type CSB450 GE33850X012
47 Upper Spring Seat, Aluminum
Types CSB400, CSB420, Token GE33332X012
48 Restrictor Plate, Steel
Token GE28948X012
49 Retaining Ring, Steel GE29720X012
50 Pusher Post, Zinc-plated steel GE27794X012
51 Relief Valve Seat, Aluminum
Token GE26856X012
Non-Relief GE27511X012
52* O-ring, Nitrile (NBR) 1C782206992
53 Solid Rivet, 18-8 Stainless steel GE29761X012
54 Roller Pin, Brass GE27060X012
55* Diaphragm Assembly, Steel / Nitrile (NBR)
Without Diaphragm Head Limiter GE31248X012
With Diaphragm Head Limiter GE32140X012
56 Retaining Ring GE33772X012
57 Bearing ball GE33131X012
58 Hex Nut, High-Pressure, ISO CL8 GE33132X012
60 Closing Cap, Low-Pressure, Aluminum GE29244X012
61 Bonnet, High-Pressure, Zinc-plated steel GE32499X012
62* O-ring, Nitrile (NBR) T10275X0012
65 Adjust Screw
Low-Pressure, Aluminum GE27828X012
High-Pressure, ISO CL8.8 GE32500X012
70 Body
Ductile Cast Iron
NPT
1 GE26463X012
1-1/4 GE26465X012
1-1/2 GE26466X012
2 GE26467X012
ISO 7/1
Rp 1 GE26468X012
Rp 1-1/4 GE26469X012
Rp 1-1/2 GE26470X012
Rp 1 x 1-1/4 GE42505X012
Rp 1 x 2-1/4, GAZ GE26482X012
Rp 2 GE26471X012
Flange
NPS 2, CL125 FF/CL150 FF GE26480X012
DN 40 PN 10/16 Slip-Flange GE44902X012
DN 50 PN 10/16 GE26481X012
WCC Steel
NPT
1 GE26463X022
1-1/4 GE26465X022
1-1/2 GE26466X022
ISO 7/1
Rp 1 GE26468X022
Rp 1-1/4 GE26469X022
Rp 1-1/2 GE26470X022
71 Bolt (2 required) GE32061X012
72 Pipe Plug, 1/4 NPT
Steel 1C333528992
316 Stainless steel 1C3335X0012
73 Seal-21 - - - - - - - - - - -
74 Blanking Plug, Aluminum GE31255X012
75* O-ring, Metric, Nitrile (NBR) GF03442X012
76 Half Flange, Steel (2 required) GF01942X012
77* Metric O-ring, Nitrile (NBR) GF03443X012
78 Lub-5 - - - - - - - - - - -
79 Lub-9 - - - - - - - - - - -
80 Cap Screw, ISO 12.9 (4 required) GE38176X012
81 Slotted Spring Pin GE32503X012
82 Tube Gasket, Nitrile (NBR) GE32502X012
83 Pitot Tube, Aluminum GE31988X012
95 Grommet, Nitrile (NBR) GE35358X012
96 Slip Disk, Stainless Steel GG05787X012
100 Wire and Seal T14088T0012
101 Spring Pin, Steel GE32724X012
104 Hub, Zinc-plated Steel (2 required) not shown GG02505X012
105 Flange Slip, Zinc-plated steel (2 required) not shown GG02508X012
106 O-ring, Nitrile (NBR) (2 required) not shown GE41121X012
107 Diaphragm Head Limiter, Steel GE28761X012
108 Diaphragm Protector, Steel GE42747X012
*Recommended spare part.
CSB400 Series
20
Figure 13. CSB400 Series Diaphragm and Relief Assemblies
GE27692
44
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