Field Station Module, FSM, a Swagelok® Pre

Field Station
Module
Application Guide
A Swagelok ® Pre-Engineered
Subsystem
• Pre-engineered subsystems
available in weeks, not months.
• Field-tested design ensures
optimum system performance.
• Preconditions a gas sample at the extraction point
• Is highly configurable to match process conditions
• Can mount directly to process nozzles
Swagelok Pre-Engineered
Subsystems
Contents
Why Use a Field
Station Module? . . . . . . . . . . . 3
Swagelok now offers a series of
predesigned and preassembled
subsystems for use in all types of
plants and facilities where fluids are
being processed. Use Swagelok preengineered subsystems to create fully
documented fluid sampling and control
systems and bring consistency to your
operations. Easy to install and operate,
these subsystems offer the high quality
and support you expect from Swagelok.
Field Station Module Basics . . . . . 5
Installing a Field
Station Module . . . . . . . . . . . . 6
Specifying a Field
Station Module . . . . . . . . . . . . 7
Joule-Thomson Cooling Effect . . . 8
Materials of Construction . . . . . . 9
Configurations . . . . . . . . . . . . . . 10
Technical Data . . . . . . . . . . . . . . 13
Testing . . . . . . . . . . . . . . . . . . . . 13
Cleaning and Packaging . . . . . . 13
Dimensions . . . . . . . . . . . . . . . . 14
Enclosure Options . . . . . . . . . . . 16
Heating Options . . . . . . . . . . . . 19
Ordering Information . . . . . . . . . 21
Accessories . . . . . . . . . . . . . . . . 22
Regulatory Compliance . . . . . . . 24
3
The Swagelok Field Station Module (FSM)
Why Use a Field Station Module?
A Swagelok field station module (FSM) reduces
process gas pressure before transporting it to
an analyzer. Transporting a gas sample at low
pressure offers three major benefits:
• Faster analyzer response time
• Less condensation
• Safer environment
Faster Analyzer Response Time
In a high-pressure line with downstream flow
Typical Swagelok Field Station
Module (FSM)
control, gas molecules are more densely
populated which creates slower flow velocity
and longer purge times. Lowering the pressure of a gas sample means fewer molecules in the
sample transport line and sample conditioning components; therefore, it is easier to flush the
system, and the analyzer can respond faster to process changes.
Without FSM—Slow Response
Process Tap
High pressure in sample transport line
results in slow response
Analyzer Location
A
P
Many Gas Molecules
Slow Response
With FSM—Fast Response
Low pressure in sample transport line
results in fast response
Process Tap
Analyzer Location
FSM
A
P
Few Gas Molecules
Fast Response
A Swagelok Pre-Engineered Subsystem
Field Station Module
4
The amount of gas held in the transport line is proportional to its absolute pressure. At half the
absolute pressure, there are half as many gas molecules in the line, so—all other things being
equal—it takes half the time for a fresh sample to reach the analyzer.
Typically, an FSM is used when process pressure is 3 bar (gauge) (43.5 psig) or higher.
Less Condensation
The relative humidity of a gas is directly proportional to the partial pressure of water vapor in the
mixture. A relative humidity (or saturation) of 100 % represents the maximum partial pressure
of water vapor possible at a working temperature. Therefore, if water vapor in any gas mixture
reaches 100 % of its saturation limit, water vapor will begin to condense in a sample transport line.
To avoid condensation in gas sampling, the FSM reduces the partial pressure of every gas in the
sample mixture. One way to lower partial pressure of every gas is to reduce overall system
pressure; the partial pressure of each gas drops in proportion to the overall pressure change.
For example, if the absolute pressure of a sample is cut in half, the partial pressure of each gas
in the mixture is cut in half as well, which results in half the water saturation in the sample. Using
an FSM significantly reduces the chance of condensation forming in the sample transport line.
FSM
P
Water Molecules
Safer Environment
If a system is compromised, the pressurized gas will expand to atmospheric pressure rapidly
and can cause system damage or personal injury. The volumetric expansion ratio is directly
proportional to the absolute pressure decrease.
In high-pressure systems without field station modules, the expansion can be so great that
the result is explosive in nature. Installing an FSM at the process sampling point means a
smaller section of the sample system is exposed to high pressure, resulting in a safer overall
environment.
A Swagelok Pre-Engineered Subsystem
Field Station Module
5
PR
FP
Field Station Module Basics
FM
PR (Pressure Regulator)
PI2
PI1
RV
The
of a Swagelok FSM is
FC
FMmain purpose
FP
PR
FP
FFL
to reduce the pressure of an extracted gas
PI3
sample prior to transportation to an analyzer.
PR
FM
Various Swagelok KPR series regulators are
FP
offered to match the wide range
of sample
FI
FP
BV
BV
C
FC
FM
MV
conditions. The systemFFL
volumeNV1
upstream of the
PSV
regulator is kept to a minimum to maintain the
FI
fastest response time possible.
PI
NV
PR
PR
FP
Vent
C
NV1
SHV
PSV
wide range of particulate filters (FP), membrane filters (FM), and coalescing filters (FC) to
NV
FM
accommodate
various particulate loads and sample moisture levels.
SSV
FC
FP
FM
Outlet
FP
It is recommended
to filter all
a pressure regulator. Swagelok offers a
FI samples prior to SN
FM
RV
PI
FP
FI
MV
FP (Filter-Particulate)
CV
BV
Inlet
CV
SHV
PV
FC
FM
Where
it is desirable
to reduce high-pressure volumeNV
even further, the FSM can be ordered
FFL
FFL
SN
without a filter. In this case, an integral filter is included in the inlet side of the regulator.
RV
BV
MV
BV
FI
BV
PI
RV
C FI
PV
C
PSV
ball valve at the inlet of the system.
PR
NV
FI
SSV
NV
NV1
MV for fast and localPSV
To allow
shutoff
NV1 f n SM,all onfigurations nclude
BV
PI
BV (Ball Valve)
wagelok40G eries
FI
FP
PI (Pressure
Indicator)
NV
FM
CV
Swagelok includes
gauges in three different pressure indicator locations for convenient
SHV
CV
FP
FC
FM
troubleshooting.
SHV
FFL
SN
SN
• PI1 location measures outlet pressure of the regulator.
RV
SSV
PV
SSV
• Optional
PI2 location
measures
inletPVpressure of the regulator.
NV
FI
MV
BV
C
NV1
• Optional PI3 location measures FSM inlet
NV
PSV
pressure
(assumed to be process pressure).
FI
• PI2—PI1 locations measure the pressure drop across the regulator to ensure proper regulator
BV
PI
BV
function.
NV
• PI3—PI2CV
locations measureSHV
the pressure drop across the filter to help indicate when filter
maintenance is needed.
SN
RV (Relief Valve)
RV
SSV
The Swagelok
FSM is available with an
PV optional proportional relief valve to guard the rest of the
NV
analytical system from a drastic increase in pressure downstream of the regulator.
BV
A Swagelok Pre-Engineered Subsystem
Field Station Module
6
Installing a Field Station Module
The schematic below illustrates an FSM installed in a process line.
Sample
Conditioning
System
Field Station
Module
FSM
SCS
Process
Isolation
Valve
Process Nozzle
Low-Pressure
Sample
Transport Line
FSM
Process
Analyzer
A
Analyzer Location
SCS
A
Process Probe
For faster analysis, mount the FSM on top of the process nozzle (as shown above). If direct
mounting on the nozzle is impractical or inconvenient, install the FSM close to the process
nozzle (as shown below). Keep the connecting tube that links the probe to the FSM as short as
possible. Because the connecting tube contains gas at full process pressure, it is important to
minimize its volume to maintain the fastest response time to the analyzer.
FSM
Connecting Tube
at High Pressure
SCS
Sample
Conditioning
System
Field Station
Module
Process
Isolation
Valve
FSM
SCS
Low-Pressure
Sample
Transport Line
Process Nozzle
A
Process
Analyzer
A
Analyzer Location
Process Probe
For more information about installation, operation, and maintenance of Swagelok FSM
subsystems, see the Field Station Module User’s Manual, MS‑13‑218.
A Swagelok Pre-Engineered Subsystem
FLM
SCS
A
FLM
SCS
A
Field Station Module
7
Specifying a Field Station Module
The FSM can be customized to meet system requirements. To specify an FSM:
• Know the maximum inlet pressure of the FSM. Specify the FSM configuration with the lowest
inlet pressure that is compatible with the highest process pressure.
• Specify pressure gauge dial size, placement, and fill. The measurement ranges of the
pressure gauges are determined automatically from the inlet pressure.
• Swagelok selects the regulator that is suitable for the maximum inlet pressure. The outlet
pressure control range is 0 to 50 psig (0 to 3.4 bar) for all models.
• Choose from five filter or coalescer options: no separate filter, small- or large-particle filter,
membrane separator with gravity drain, and large fibrous coalescer with membrane filter.
• Coalescer options work to remove liquid mist. The coalescer drain may terminate in a
manual blowdown valve that is separate from this system.
• Do not use a coalescer if the sample contains many particulates; the coalescer will clog.
Instead, specify a filter to remove them and, if the liquid mist is volatile, keep the field
station and transport line hot enough to avoid condensation. If necessary, condense and
remove the liquid in the sample conditioning system close to the analyzer. If the sample
contains many particulates and nonvolatile liquid mist, the FSM may not be suitable; ask
for an evaluation by Swagelok.
• Select from three pressure-relief options: no relief valve, preset adjustable relief valve, or
preset adjustable relief valve with manual override handle.
 Caution: Without a relief valve, the outlet pressure gauge and the downstream
equipment are not protected if the pressure regulator fails. A suitable pressure
relief mechanism should be used to protect the system from overpressurization.
• Choose from a wide range of inlet and outlet connections, including Swagelok tube fittings,
NPT fittings, and flanges.
• Select an enclosure option. ABS plastic, fiberglass, and 304 stainless steel enclosures and
sun shades are available. Enclosures are available with or without a window and insulated or
uninsulated.
A Swagelok Pre-Engineered Subsystem
Field Station Module
8
Joule-Thomson Cooling Effect
Field station modules with inlet pressures of 1000 psig (68.9 bar) or higher have a large pressure
drop, and the sample may experience excessive cooling. Although the temperature drop caused
by Joule-Thomson cooling is the same at any flow rate, the heat it absorbs is proportional to
the rate of flow. The FSM offers a wide range of heater options, sufficient for most sampling
applications.
A Swagelok Pre-Engineered Subsystem
Field Station Module
9
Materials of Construction
Configuration
Label
Component
Manufacturer,
Model
Material Grade / ASTM Specification
BV
Isolation ball valve
Swagelok 40G series
See Swagelok One-Piece Instrumentation Ball
Valves—40G Series and 40 Series catalog,
MS‑02‑331
FC
Filter-coalescing
membrane
(configuration 5)
Avenger™
model 38M
See Avenger 30 Series Filters selection guide,
www.apluscorporation.com
FM
Filter-membrane
separator
(configuration 3)
Supreme model 123HP
See Series 100 Genie® Membrane Separators™ selection guide, www.apluscorporation.com
Filter-particulate (small capacity,
configurations 1 and 2)
Swagelok TF series
See Swagelok Filters catalog, MS-01-92
Filter-particulate (large-capacity,
configuration 4)
Avenger model 38
See Avenger 30 Series Filters selection guide,
www.apluscorporation.com
PI
Pressure indicator
Swagelok B model pressure
gauge
See Swagelok Pressure Gauges, Industrial and
Process—PGI Series catalog, MS-02-170
PR
Pressure regulator
Swagelok KPR series
See Swagelok Pressure Regulators catalog,
MS‑02‑230
RV
Relief valve, proportional
Swagelok RL3 and R3A series
See Swagelok Proportional Relief Valves catalog,
MS-01-141
—
Base plate
Swagelok
304 SS / A240
—
Flange fittings
Swagelok
See Swagelok Flange Adapters catalog, MS-02-200
—
Hardware
Various
300 series SS, electroplated steel, hot-dip
galvanized steel, or coated steel
—
Mounting brackets
Swagelok
304 SS / A240
FP
System Hardware and Optional Components
—
Stainless steel tube fittings
Swagelok
316 SS / A276 or A182
See Swagelok Gaugeable Tube Fittings and
Adapter Fittings catalog, MS-01-140
—
Stainless steel tubing
Swagelok
316/316L SS / A213/A269
See Swagelok Stainless Steel Seamless Tubing
catalog, MS-01-1-SCS
—
Stainless steel
enclosure
Swagelok
304 SS / A240
—
ABS enclosure
O’Brien VIPAK® A1
See O’Brien Corporation VIPAK catalog, www. obcorp.com
—
Fiberglass enclosure
Intertec
DIABOX™ 87
See Intertec Instrumentation DIABOX 87 catalog www.intertec.info/
—
Stainless steel sun
shade
Swagelok
304 SS / A240
—
ABS sun shade
O’Brien VIPAK E1B
See O’Brien Corporation VIPAK catalog, www. obcorp.com
—
Fiberglass sun shade
Intertec SD 50
See Intertec Instrumentation SD 50 Shade catalog, www.intertec.info/
—
Enclosure heater
Intertec CP MULTITHERM
See Intertec Instrumentation explosion proof
convection heaters, www.intertec.info/
—
Regulator heater
Intertec SL BLOCKTHERM
See Intertec Instrumentation explosion proof
conduction heaters, www.intertec.info/
—
Thermostat
Intertec TS and TAE
See Intertec Instrumentation DIABOX 87 catalog, www.intertec.info/
—
Thermometer
Swagelok
See Swagelok Temperature Measurement Devices
catalog, MS‑02‑353
A Swagelok Pre-Engineered Subsystem
Field Station Module
10
Configurations
1. Clean, Dry, High-Pressure
Specially designed to minimize sample
system volume upstream of the pressure
drop. This is especially important in high-
Shown with
Stainless Steel
Enclosure Base
pressure systems where upstream molecules
travel at extremely slow velocities.
• Lowest internal volume upstream of the
RV
regulator (PR).
• Optional PI2 gauge measures inlet
PI1
pressure at the regulator.
• Optional small-capacity particle filter (FP).
• Fastest response for sample systems.
PR
PI2
FP
BV
Inlet
Outlet
Vent
2. Clean, Dry, Medium Pressure
Designed for clean, dry samples in mediumto high-pressure systems. Volume upstream
of the regulator is kept to a minimum,
however gauges are assembled in a vertical
orientation, allowing for an upstream filter
gauge.
PI2
• Low internal volume.
PI1
RV
• Optional PI2 gauge measures inlet
PI3
pressure at the regulator.
PR
FP
• Optional PI3 gauge allows pressure drop
measurement across the filter, which
helps indicate when filter maintenance is
needed.
Inlet
• Optional small-capacity particle filter (FP).
A Swagelok Pre-Engineered Subsystem
BV
Field Station Module
Outlet
Vent
11
Configurations
3. Low Moisture and Particulate Load
Designed for process lines with low levels of
moisture and particulate load.
• Low internal volume maintained in this
design.
• Membrane separator (FM) with integral
gravity drain allows moisture to drop back
to process.
PI2
PI1
RV
• Maximum recommended flow rate through
membrane separator is 0.18 std ft3/min
PR
(5.1 std L/min).
FM
• Optional PI2 gauge measures inlet
BV
pressure at the regulator.
Inlet
Outlet
Vent
4. High Particulate Load
Handles highest particulate load of any
configuration.
• Optional PI3 gauge allows pressure drop
measurement across the filter, which
helps indicate when filter maintenance is
needed.
• Includes large-capacity particle filter (FP).
PI2
PI1
RV
• Optional PI2 gauge measures inlet
pressure at the regulator.
PI3
PR
FP
BV
Inlet
A Swagelok Pre-Engineered Subsystem
Outlet
Vent
Field Station Module
12
Configurations
5. Moist Process Sample
Includes coalescing filter and liquid drain for
moist process samples.
• Higher internal volume.
• Large-capacity 0.1 µm coalescing filter
and membrane separator combination
filter (FC).
PI2
• Maximum recommended flow rate through
PI1
RV
membrane separator is 0.035 std ft3/min
(1.0 std L/min).
PI3
• Optional PI2 gauge measures inlet
PR
FC
pressure at the regulator.
BV
• Optional PI3 gauge allows pressure drop
measurement across the filter, which
helps indicate when filter maintenance is
Drain
needed.
A Swagelok Pre-Engineered Subsystem
Field Station Module
Inlet
Outlet
Vent
13
Technical Data
Temperature Rating, °F (°C)
FSM
Configuration
Working
Pressure
psig (bar)
1 Clean, dry, highpressure
Maximum Air Flow
std ft3/min (std L/min)
Filter
Internal
Volume
in.3 (cm3)
With Relief
Valve
Without
Relief Valve
15 psig
(1.0 bar)
Outlet
Pressure
2500 (172)
250 (121)
300 (148)
0.23 (6.5)
0.39 (11.0)
0.30 (4.9)
2 Clean, dry,
medium-pressure
2500 (172)
250 (121)
300 (148)
0.23 (6.5)
0.39 (11.0)
0.30 (4.9)
3 Low moisture and
particulate load
1000 (68.9)
185 (85)
185 (85)
0.18 (5.1)
0.18 (5.1)
0.56 (9.1)
4 High particulate
load
1000 (68.9)
250 (121)
300 (148)
0.23 (6.5)
0.39 (11.0)
3.05 (50.0)
5 Moist process
sample
1000 (68.9)
185 (85)
185 (85)
0.035 (1.0)
0.035 (1.0)
3.05 (50.0)
30 psig
(2.1 bar)
Outlet
Pressure
For systems outside these parameters, contact your authorized Swagelok sales and service representative.
Testing
Cleaning and Packaging
Every Swagelok FSM subsystem is shell
All Swagelok FSM subsystems are cleaned
tested with nitrogen at 145 psig (10 bar) to a
in accordance with Swagelok Standard
requirement of no detectable leakage with a
Cleaning and Packaging (SC-10), MS-06-62.
liquid leak detector.
A Swagelok Pre-Engineered Subsystem
Field Station Module
14
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Top
3.73
(94.7)
Heater wiring, two
0.88 (22.3) holes
4.42
(112)
D2 (outlet)
5.60
(142)
5.00
(127)
D1
(inlet)
D3
(drain)
15.7
(399)
D4
(vent)
6.10
(155)
Optional inlet
flange bolt
mounting,
four holes
equally spaced
on bolt circle
4.50
(114)
4.50
(114)
15.7
(399)
Base Plate Dimensions
in. (mm)
End Connections
Type
Swagelok
tube fitting
Female NPT
Size
7.35
(187)
ASME
Pressure
Class
1/4 in.
—
D1, D2
Dia
D3, D4
Dia
Weight
FSM Subsystem
Weight
lb (kg)
Basic module
25 (11.3)
Stainless steel enclosure
35 (15.9)
ABS enclosure
20 (9.1)
Fiberglass enclosure
25 (11.3)
6 mm
—
1/4 in.
—
1/2 in.
—
Heater
10 (4.5)
Stainless steel sun shade
9.0 (4.1)
ABS plastic sun shade
6.5 (2.9)
Fiberglass sun shade
8.0 (3.6)
0.50 (12.7)
Entry seal➀
2 in.
—
2.00 (50.8)
Tube stub➁ 1/4 in.
—
0.50 (12.7)
150
3/4 in.
600
1500
Flange➂
150
1 1/2 in.
0.50
(12.7)
1.50 (38.1)
600
1500
➀ Entry seal includes inlet and outlet fittings with heat-shrinkable seal to
accommodate 0.75 to 1.6 in. (19.0 to 40.6 mm) insulated tubing.
➁ All connections on FSM subsystems with ABS plastic or fiberglass enclosures
are 1/4 in. tube stubs.
➂ Flange available for inlet connection only.
A Swagelok Pre-Engineered Subsystem
Field Station Module
15
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Front
Side
A
E
2.57
(65.3)
0.56 (14.2)
8.94
(227)
0.63
(16.0)
16.8
(427)
0.56
(14.2)
0.63 (16.0)
0.56
(14.2)
8.94
(227)
0.63 (16.0)
0.63 (16.0)
7.85
(199)
15.7
(399)
End Connections
Type
Size
Swagelok tube
fitting
1/4 in.
Female NPT
6 mm
E, in. (mm)
63 mm
(2 1/2 in.)
Gauge
100 mm
(4 in.)
Gauge
1 Clean, dry, highpressure
14.8 (376)
16.4 (417)
2 Clean, dry, mediumpressure
12.6 (320)
14.6 (371)
3 Low moisture and
particulate load
4 High particulate load
5 Moist process sample
15.9 (404)
17.8 (452)
0.95 (24.1)
1/4 in.
0.72 (18.3)
1/2 in.
0.97 (24.6)
Entry seal➀
2 in.
5.10 (130)
Tube stub➁
1/4 in.
2.00 (50.8)
0.51 (13.0)
3/4 in.
A, in. (mm)
FSM
Configuration
0.88 (22.4)
1.26 (32.0)
Flange➂
0.70 (17.8)
1 1/2 in.
1.14 (29.0)
1.51 (38.4)
➀ Entry seal includes inlet and outlet fittings with heat-shrinkable
seal to accommodate 0.75 to 1.6 in. (19.0 to 40.6 mm) insulated
tubing.
➁ All connections on FSM subsystems with ABS plastic or
fiberglass enclosures are 1/4 in. tube stubs.
➂ Flange available for inlet connection only.
A Swagelok Pre-Engineered Subsystem
Field Station Module
16
Enclosure Options
Enclosures
Three types of enclosures, all with lockable latches to secure them in the closed position, are
available to protect Swagelok FSM subsystems.
304 Stainless Steel
Stainless steel enclosures, manufactured by Swagelok, are IP55 rated. They are mounted to the
FSM base plate and have three positions: closed, open, and removed.
• Neoprene foam rubber provides a weather-resistant seal.
• Stainless steel handles and a force-assist gas spring allow the
enclosure to be readily raised into the open position. In the open
position, the enclosure provides unique 360° access for easy
adjustments and service. For full access, the enclosure can be
completely removed by disengaging the gas-assist spring and lifting
on the handles.
• Enclosures insulated with 1 in. (25.4 mm) thick closed-cell foam
rubber are available for heated applications.
• A safety-glass or polycarbonate 10.2 by 12.2 in. (259 by 310 mm) window option provides a
large viewing area.
ABS (Acrylonitrile Butadiene Styrene) Plastic
ABS VIPAK enclosures are manufactured by O’Brien Corporation and are IP66 rated.
• Neoprene gasketed door, 1 in. (25.4 mm) urethane insulation,
stainless steel prop rod, and two 1 5/8 in. horizontal mounting struts
on the back are included.
• Window option includes 12.0 by 12.0 in. (305 by 305 mm) tempered
glass window centered on the front.
Fiberglass
Fiberglass DIABOX enclosures are manufactured by Intertec Instrumentation and are
IP65/NEMA4X rated.
• EPDM-gasketed door, stainless steel prop rod, and two 1 5/8 in.
horizontal mounting struts on the back are included.
• Insulation option includes 1 in. (25.4 mm) low-density polyurethane.
• Window option includes 11.4 by 11.4 in. (290 by 290 mm) safetyglass or acrylic window centered on the front.
A Swagelok Pre-Engineered Subsystem
Field Station Module
17
Enclosure Options
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
304 Stainless Steel
35.6
(904)
R
22.5
(572)
R
20.5
(521)
16.2
(411)
Front
Side, Closed
Side, Open
ABS Plastic
21.0
(533)
38.7
(983)
20.8
(528)
10.0
(254)
17.3
(439)
0.81 (20.5)
Front
Side, Closed
Side, Open
Fiberglass
15.6
(396)
33.8
(859)
19.6
(498)
10.0
(254)
18.2
(462)
Front
0.81 (20.5)
Side, Closed
Side, Open
A Swagelok Pre-Engineered Subsystem
Field Station Module
18
Enclosure Options
Sun Shades
As an alternative to enclosures, sun shades are available in
304 stainless steel, ABS plastic, and fiberglass.
• Stainless steel sun shades are manufactured by
Swagelok.
• ABS plastic sun shades are manufactured by O’Brien
Corporation.
Stainless Steel Sun Shade
• Fiberglass sun shades are manufactured by Intertec
Instrumentation.
Material
Dimensions, in. (mm)
Mounting
304 SS
Mounted:
22.4 H, 20 W, 20 D
(569 H, 508 W, 508 D)
Mounts to the FSM brace in
place of an enclosure
ABS plastic
Unmounted:
19.5 H, 17 W, 19.5 D
(495 H, 432 W, 495 D)
Fiberglass
Unmounted:
7.0 H, 22.4 W, 22.4 D
(178 H, 569 W, 569 D)
Mount to a 2 in. structural
pipe (not supplied);
two pipe clamps and
mounting hardware provided
ABS Plastic Sun
Shade Shown with
Mounting Bracket
(Available Separately)
Fiberglass Sun Shade
Shown with
Mounting Bracket
(Available Separately)
A Swagelok Pre-Engineered Subsystem
Field Station Module
19
Heating Options
Heaters and thermostats for Swagelok FSM
subsystems are manufactured by Intertec
Instrumentation.
Enclosure Heaters
Heaters are available for applications where
environmental temperatures may drop
below the dew point of the gas. Heaters
are mounted inside the enclosure for freeze
protection or temperature maintenance. An
insulated enclosure should be ordered with a
heater to maximize effectiveness.
Enclosure heaters with thermostats are
Enclosure Heater
with Thermostat
(ATEX/IEC Approval)
available with ATEX/IEC or CSA/UL
approvals.
Enclosure Heater
with Thermostat
(CSA/UL Approval)
Enclosure Heater Selection
Enclosure heaters typically are selected based on the temperature differential (T) between the
set thermostat temperature and the lowest expected ambient temperature.
Enclosure
Configuration
Maximum T, °F (°C)
50 (28)
75 (42)
100 (56)
125 (69)
150 (83)
Heater Wattage Required
Stainless Steel Enclosure
Insulated, no window
100 W
100 W
100 W
200 W
—
Insulated, with window
100 W
100 W
200 W
200 W
—
ABS and Fiberglass Enclosures
Insulated, no window
50/100 W
50/100 W
100 W
100 W
200 W
Insulated, with window
50/100 W
100 W
100 W
200 W
200 W
Uninsulated, no window➀
100 W
200 W
—
—
—
Uninsulated, with window➀
100 W
200 W
—
—
—
➀ Available in fiberglass only.
A Swagelok Pre-Engineered Subsystem
Field Station Module
20
Heating Options
Regulator Heaters
Regulator heaters are intended for
applications where the Joule-Thomson effect
from high pressure drops may cause the
regulator to freeze or the gas to condense.
Regulator heaters are mounted to the bottom
of the pressure regulator body to heat the
regulator body and surrounding air.
Regulator
Heater
Regulator heaters are self-limiting and are available with ATEX/IEC or CSA/UL approvals.
Heater Thermostats
Heater thermostats provide temperature
control of the environment within the
enclosure and are available with ATEX/IEC
and CSA/UL approvals.
Enclosure heater thermostats are available
at 50, 86, and 125°F (10, 30, and 50°C) set
temperatures. Regulator heaters are self limiting.
Heater
Control
Power
W
Set
Temperature
°F (°C)
100
86 (30)
50 (10)
Enclosure
125 (50)
Thermostat
200
Regulator
Self-limiting
50
A Swagelok Pre-Engineered Subsystem
50 (10)
86 (30)
T4 max (275°F [135°C])
Field Station Module
21
Ordering Information
Build an FSM subsystem ordering number by combining the designators in the sequence shown below.
1
2
3
4
5
6
7
8
9
10
11
FSM - 1 - R B 1 A B - S4 S4 SA - XXX 5
1 Configuration
1 = Clean, dry, high-pressure
(page 10)
2 = Clean, dry, medium-pressure
(page 10)
3 = Low moisture and particulate load
(page 11)
4 = High particulate load (page 11)
5 = Moist process sample (page 12)
2 M
aximum Inlet Pressure
Outlet pressure control range is 0 to
50 psig (0 to 3.4 bar) for all models.
F = 100 psig (6.8 bar)
J = 300 psig (20.6 bar)
L = 1000 psig (68.9 bar)
R = 2500 psig (172 bar)➀
➀Available on configurations 1 and 2 only.
3 Pressure Gauge Location(s)
Swagelok B Model
A = Regulator outlet only
B = Regulator inlet and outlet
C = Filter inlet and regulator outlet➀
D = Filter inlet, regulator inlet, and
regulator outlet➀
➀ Available on configurations 2, 4 and 5 only.
4 Pressure Gauge Dial Size, Fill
Swagelok B Model
1 = 63 mm (2 1/2 in.), unfilled
2 = 63 mm (2 1/2 in.), silicone fill
3 = 100 mm (4 in.), unfilled➀
4 = 100 mm (4 in.), silicone fill➀
➀ Filter inlet gauge has a 63 mm (2 1/2 in.) dial.
5 Filter
A = 15 µm TF series particle filter
(configurations 1 and 2 only)
X = No separate filter, 25 µm gauze
inlet filter on regulator
Y = Required for configurations 3, 4,
and 5
6 Relief Valve
A = Pre-set➀ adjustable relief valve
B = Pre-set➀ adjustable relief valve,
manual override handle
X = No relief valve
➀ For 100 and 300 psig (6.8 and 20.6 bar) systems,
RL3 relief valve is factory set to 45 psig (3.1 bar); for
1000 and 2500 psig (68.9 and 172 bar) systems,
R3A relief valve is factory set to 50 psig (3.4 bar).
7 Inlet Connection
Bulkhead
S4 = 1/4 in. Swagelok tube fitting
6M = 6 mm Swagelok tube fitting
F4 = 1/4 in. female NPT
F8 = 1/2 in. female NPT
Tube
ES = Entry seal (includes removable
1/4 in. tube stub)
T4 = 1/4 in. tube stub (removable)
Flange (Not available on ABS plastic and
fiberglass enclosures)
B1 = 3/4 in., ASME class 150➀
B3 = 3/4 in., ASME class 600➁
B5 = 3/4 in., ASME class 1500
D1 = 1 1/2 in., ASME class 150➀
D3 = 1 1/2 in., ASME class 600➁
D5 = 1 1/2 in., ASME class 1500
➀ Limits pressure to 275 psig (18.9 bar).
➁ Limits configurations 1 and 2 to 1440 psig
(99.2 bar).
8 Outlet, Drain, Vent Connections
Bulkhead (304 SS enclosure only)
S4 = 1/4 in. Swagelok tube fitting
6M = 6 mm Swagelok tube fitting
F4 = 1/4 in. female NPT
Tube
ES = Entry seal outlet (includes removable
1/4 in. tube stub); removable 1/4 in.
tube stub drain and vent)
T4 = 1/4 in. tube stub (removable)
9 E
nclosure (page 16) /
Sun Shade (page 18)
XX = No enclosure, no sun shade
304 Stainless Steel Enclosure
SA = Uninsulated, no window
SB = Uninsulated, safety glass window
SC = Uninsulated, polycarbonate window
SE = Insulated, no window
SF = Insulated, safety glass window
SG = Insulated, polycarbonate window
ABS Plastic Enclosure
AE = Insulated, no window
AF = Insulated, safety glass window
Fiberglass Enclosure
GA = Uninsulated, no window
GB = Uninsulated, safety glass window
GD = Uninsulated, acrylic window
GE = Insulated, no window
GF = Insulated, safety glass window
GH = Insulated, acrylic window
Sun Shade
AS = ABS plastic
GS = Fiberglass
SS = 304 stainless steel
10 Heater (page 19) / Thermostat (page 20)
XXX = No heater, no thermostat
Approval➀➁➂Thermostat
Enclosure Heater, 100 W
(convection heater, T3)
1A1 = ATEX/IEC 230 V
50°F (10°C)
1A3 = ATEX/IEC 230 V
86°F (30°C)
1A5 = ATEX/IEC 230 V
122°F (50°C)
1C1 = CSA/UL D1 120 V 50°F (10°C)
1C3 = CSA/UL D1 120 V 86°F (30°C)
1C5 = CSA/UL D1 120 V 122°F (50°C)
1D1 = CSA/UL D1 230 V 50°F (10°C)
1D3 = CSA/UL D1 230 V 86°F (30°C)
1D5 = CSA/UL D1 230 V 122°F (50°C)
Enclosure Heater, 200 W
(convection heater, T3)
2A1 = ATEX/IEC 230 V
50°F (10°C)
2A3 = ATEX/IEC 230 V
86°F (30°C)
2C1 = CSA/UL D1 120 V 50°F (10°C)
2C3 = CSA/UL D1 120 V 86°F (30°C)
2D1 = CSA/UL D1 230 V 50°F (10°C)
2D3 = CSA/UL D1 230 V 86°F (30°C)
Regulator Heater, 50 W
(conduction heater, self-limiting, T4, 110
to 265 V range for most applications)
5BX = ATEX/IEC 265 V
None
5EX = CSA/UL D2 265 V None
➀
Heater and thermostat approvals:
ATEX/IEC 230 V—II 2G/D EEx d IIC, (230 V)
ATEX/IEC 265 V—II 2G/D EEx d IIC, (110 to 265 V)
CSA/UL D1 120 V—Cl I; Div 1; A, B, C, D (120 V)
CSA/UL D1 230 V—Cl I; Div 1; A, B, C, D (230 V)
CSA /UL D2 265 V—Cl I; Div 2; A, B, C, D (110 to
265 V)
➁ Included ATEX junction box is II 2G EEx e II T6
rated.
➂ Included CSA/UL junction box is suitable for gas
groups A, B, and C only.)
11 Additional Options
For multiple options, add numerical, then
alphabetical designators.
5 = Swagelok bimetal thermometer,
0 to 200°F (–15 to 90°C), 3 in.
(76 mm dial size)
K = SWAK® thread sealant on NPT
threads (PTFE tape is standard)
A Swagelok Pre-Engineered Subsystem
Field Station Module
22
Accessories
Mounting Brackets
A variety of brackets—including back-center,
cantilever, direct, and wall mounting models—
is available.
FSM with
Back-Center
Mounting
Bracket
Materials
Component
Material
Split washers, washers,
hex bolts, struts, mounting
plate, rounded U-bolts,
squared U-bolts
300 series SS
Strut nuts
Electrogalvanized steel
Dimensions
Dimensions, in inches (millimeters), are for reference only and are subject to change.
Back-Center (BC) Mounting Bracket Kits
17.6
(447)
15.4
(391)
7.00
(178)
16.8 (427)
Top
Front
Side
Cantilever (C, CS, CL) Mounting Bracket Kits
These kits are available in center line, short, and long cantilever models.
22.6 (574) max
9.95 (253)
max
CL: 33.6 (853)
6.10
(155)
CS: 22.0 (559)
C: 15.7 (399)
7.00
(178)
Side
Top
CL designates long cantilever;
CS designates short cantilever;
C designates center line cantilever.
A Swagelok Pre-Engineered Subsystem
Field Station Module
23
Accessories
Direct (DM) Mounting Bracket Kits
18.9 (480)
15.7 (399)
13.7
(348)
7.00
(178)
Top
Front
Side
Wall (WM) Mounting Bracket Kits
19.7 (500)
10.8
(274)
16.5
(419)
Top
15.0
(381)
Front
Side
Ordering Information
Build an FSM mounting bracket kit ordering number by combining the designators in the
sequence shown below.
1
2
3
FSM - MK - BP - CS - 32P
1 System Type
BP = Base plate
PE = Plastic enclosure (available
with back-center mounting
style BC only)
2 Mounting Style
BC = Back-center (available for
support type 32P only)
C = Center-line cantilever
CL = Long cantilever
CS = Short cantilever
DM = Direct
WM = Wall (does not require
support type designator)
3 Support Type
Omit designator for wall mount
(WM) mounting style.
32P = 2 in. pipe
32S = 2 in. square tube
26S = 1 5/8 in. strut.
A Swagelok Pre-Engineered Subsystem
Field Station Module
Accessories
Replacement Filter Element Kits
Kits include filter element and instructions.
FSM Configuration
1 Clean, dry, highpressure
2 Clean, dry, mediumpressure
Kit Ordering Number
SS-4F-K4-15
3 Low moisture and
particulate load
FSM3-FILTER-K
4 High particulate load
FSM4-FILTER-K
5 Moist process sample
FSM5-FILTER-K
Regulatory Compliance
Europe
• Pressure Equipment Directive (PED) 97/23/EC
• Atmospheres Explosive Directive (ATEX) 94/9/EC
• Restriction of Hazardous Substances Directive (RoHS) 2002/95/EC
Americas
• Hazardous location electrical approval (CSA/UL)
• CRN registered in Canada (individual components of assembly)
Contact your authorized Swagelok representative for specific assembly compliance approvals
and certifications available from the manufacturer.
Safe Product Selection
When selecting a product, the total system design must
be considered to ensure safe, trouble-free performance.
Function, material compatibility, adequate ratings,
proper installation, operation, and maintenance are the
responsibilities of the system designer and user.
Warranty Information
Swagelok products are backed by The Swagelok Limited
Lifetime Warranty. For a copy, visit swagelok.com or contact
your authorized Swagelok representative.
Caution: Do not mix or interchange Swagelok product
components with those of other manufacturers.
Swagelok, SWAK—TM Swagelok Company
Avenger, Genie, Membrane Separators—TM A+ Manufacturing, LLC; VIPAK—TM O’Brien Corporation; DIABOX—TM Intertec
© 2012–2013 Swagelok Company, Printed in U.S.A., AGS, January 2013, R3, MS-02-359