September 2016 / Bulletin 100-80
Gas Cooler/Flash Gas Bypass ValvesFor Transcritical CO2 (R-744) Applications
⚠WARNING – USER RESPONSIBILITY
Failure or improper selection or improper use of the products described herein or related items can cause death, personal injury and property damage.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide product or system options for further investigation by users having technical expertise.
The user, through its own analysis and testing, is solely responsible for making the final selection of the system and components and assuring that all performance, endurance, maintenance, safety and warning requirements of the application are met. The user must analyze all aspects of the application, follow applicable industry standards, and follow the information concerning the product in the current product catalog and in any other materials provided from Parker or its subsidiaries or authorized distributors.
To the extent that Parker or its subsidiaries or authorized distributors provide component or system options based upon data or specifications provided by the user, the user is responsible for determining that such data and specifications are suitable and sufficient for all applications and reasonably foreseeable uses of the components or systems.
For safety information see the Safety Guide at www.parker.com/safety or call 1-800-CParker.
OFFER OF SALE
The items described in this document are hereby offered for sale by Parker Hannifin Corporation, its subsidiaries or its authorized distributors. This offer and its acceptance are governed by the provisions stated in the detailed “Offer of Sale” elsewhere in this document or available at www.parker.com.
FOR USE ON REFRIGERATION and/or AIR CONDITIONING SYSTEMS ONLYBulletin 100-80, September 2016 supersedes Bulletin 100-80, August 2014 and all prior publications.For more information about our products visit us at www.sporlan.com.
Bulletin 100-80 – Page 1
GAS COOLER/FLASH GAS BYPASS VALVESThe Sporlan GC and FGB valve families are stepper motor driven pressure regu-lating valves, designed specifically for transcritical R-744 refrigeration systems.
The GC -10, -20, -30, -40, & -50 are applicable as gas cooler / condenser hold-back valves and can also be applied as flash tank pressure regulating valves (flash gas bypass). The flash gas bypass valve capacity range is expanded with the use of the FGB-60 & -70 valves in this application. All GC and FGB valves have 2500 steps of movement and synthetic seats to provide great resolution and ensure tight shutoff.
CONTROLSThe Sporlan GC and FGB valves can be controlled and driven using the Parker Sporlan PSK3LX CO2 Controller and PSD4 Interface Board/Positioner. The PSK3LX CO2 Controller optimizes transcritical and subcritical CO2 system COP through control of the GC & FGB valves. This control system can drive two valves for Gas Cooler and Flash Tank control.
The PSD4 Interface Board accepts a 0-10VDC or 4-20 mA signal from the PSK3LX or other gas cooler/system controller. The PSD4 translates this signal into a suitable stepper motor sequence to position the valve proportionally.
The PSS4B Backup Power Module provides reserve power for one full valve closure in the event of a power loss. This serves to isolates the refrigerant charge and minimize CO2 refrigerant loss if system pressure exceeds the system’s pressure relief valve setting.
VALVE CONSTRUCTIONThe GC family features a cartridge construction, where the valve port is integrated into the stepper motor actuator assembly. Therefore, the valve family can be broken into two distinct pieces: the bodies and the cartridge assemblies.
The valve bodies are available with three connection sizes for butt or tube / socket welding: ½ inch (12.7 mm), ¾ inch (19.05 mm) and 1 inch (25.4 mm). The five cartridge assemblies contain the valve pin and port, and determine the ultimate valve capacity. The three bodies are compatible with all five cartridge assemblies, and can be paired in any combination to best fit the system piping and capacity requirements.
There is a screen located around the port inlet that is a part of the cartridge assembly, but can be removed for service if necessary.
The FGB family has a slightly different construction that minimizes pressure drop through the valve at full
stroke. To achieve this result, the port is not inte-grated into the stepper motor actuator assembly, but is mounted directly into the valve body.
There is a single valve body available with a 1 inch (25.4 mm) connection for butt welding. Because
this valve is installed in the low pressure side of the system, the option is also available to utilize an 1-1/8
inch (28.58 mm) ODF or 1-3/8 inch (34.93 mm) ODM braze joint.
There are two stepper motor actuator assem-blies that contain the valve pin, and must
be matched with the corresponding port. The port is threaded into the valve body, and is removable to service the port or to perform a capacity conversion.
FEATURES• Pressure rated for
Transcritical CO2 applications
• High resolution actuators with 2500 steps
• Uniquely characterized pin and port combinations to provide excellent full range flow control
• 7.25 second full stroke actuation
• Cartridge valve designs
• Interchangeable bodies with flexible connections
• Tight seating capability
• Replaceable/serviceable screen (GC Series)
• Open design can be driven through a 0-10V or 4-20 mA interface
Page 2 – Bulletin 100-80
TYPICAL SYSTEM SCHEMATIC/THERMODYNAMIC CYCLE
2 3
14
45°
M12x1 (INTERNAL THREAD)
VALVE DRIVE SEQUENCE (IF DRIVEN DIRECTLY)
OPE
N
CLO
SE
CABLE LEAD COLORStep Black White Red Green
1 HI 0 HI 02 0 HI HI 03 0 HI 0 HI4 HI 0 0 HI1 HI 0 HI 0
CABLE CONNECTIONTerminal Position Lead Wire Color
1 Red2 Green3 White4 Black
Cable is not orientation specific, and can be installed in any of four positions (90 degrees apart).
PSS4B BackupPower Module
PSD4 Interface Board
PSD4 Interface Board
PSK3LX CO2 Controller
Gas Cooler
VaporSuction
Liquid
Flash Tank
Evaporators
Flash Gas Bypass
GasCoolerValve
High PressureTransducer
CO2 OutletTemperature Transducer
Flash TankPressure
Transducer
A
B
Suction PressureTransducer
PP
P
PSS4B BackupPower Module
RackController
1000
Pres
sure
(psi
a)
Enthalpy (Btu/lbm)
10050 100 200 250
-40°
-40°
F
0°F
A
Gas Cooling
150
Expansion
Evaporation
Compression
SeparationFlash Tank
LIQUID VAPOR
B
A70 lb
m/ft
3
65 lb
m/ft
3
60 lb
m/ft
3
55 lb
m/ft
3
lbm
/ft3
45 lb
m/ft
3
15 lbm/ft3
10 lbm/ft3
5 lbm/ft3
-60°F
20°F
Bulletin 100-80 – Page 3
CONNECTION SIZE1” [25.4mm]
DIM ‘A’ - BUTT WELD1.315” [33.40mm]
DIM ‘B’ - ODM BRAZE1-3/8” [34.93mm]
DIM ‘C’ - ODF BRAZE1-1/8” [28.58mm]
CONNECTION SIZE DIM ‘A’ - BUTT WELD
DIM ‘B’ - TUBE/SOCKET WELD
1/2” [12.7mm] .84” [21.34mm] .51” [12.95mm]3/4” [19.05mm] 1.05” [26.67mm] .76” [19.30mm]
1” [25.4mm] 1.315” [33.40mm] 1.01” [25.65mm]
VALVE SPECIFICATIONSCompatible Refrigerant R-744
Motor Type Permanent magnet bipolar internal (wet) motor
Phase Resistance 12.8 Ω ± 10%Phase Inductance 18.5 mH (Reference)
Phase Current 275 mA (using current limited / chopper drive)
Holding Current 0 mAStep Mode 2 Phase, Full StepStep Rate 400 PPSNumber of Steps 2500Initialization Number of Steps 3125
Reference Position Overdrive against fully closed position*
Full Stroke Transit Time 7.25 secondsInternal Screen 259 micron (GC only)Electrical Connection M12 A-codedMRP 140 barg (2030 psig)
MOPD GC: 90 bar (1305 psid)FGB: 50 bar (725 psid)
Fluid Temperature Range -40°C to 115°C (-40°F to 239°F)Ambient Temperature Range -40°C to 60°C (-40°F to 140°F)
Duty Cycle
50% at Maximum Fluid Temperature100% at 100°C (212°F) or Lower Fluid Temperature
Max External Leakage 2.8 gm/yr @ 20 barg (.10 oz/yr at 300 psig)
Mounting Orientation Motor Housing Vertical ± 45°
Materials of Construction Stainless steel, brass, synthetic seals
Agency Certification (SA5460), , RoHS, REACH
*Overdriving open is permitted, but valve will drive open beyond 2500 steps.
VALVE DIMENSIONS (GC FAMILY)
VALVE DIMENSIONS (FGB FAMILY)
2.75”[62.7mm]
3.625”[92.08mm]
1.5”[38.1mm]
0.75”[19.05mm]
‘B’- Inlet & Outlet
‘A’- Inlet & Outlet
8.846”[205.23mm](Allow an additional
2.8”[70mm] to remove the motor adapter assy.)
5.187” [131.75mm]
6.312”[146.8mm]
‘C’- Inlet & Outlet
‘A’ & ‘B’- Inlet & Outlet
7.529”[172.2mm](Allow an additional 2.25”[57.2] to remove
the motor adapter assy.)GC FAMILY DIMENSIONS
FGB FAMILY DIMENSIONS
Page 4 – Bulletin 100-80
GAS COOLER VALVE CAPACITY FLOW CURVES
60
55
50
45
40
35
30
25
20
15
10
5
0
17161514131211109876543210
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Steps
GC-10, -20 Capacity Flow Curves100 barg (1450 psig) Gas Cooler at 38°C (100°F)
38.7 barg (561 psig) Flash Tank at 5°C (40°F)
Capa
city
(kW
)
Capa
city
(Ton
s)
GC-20
GC-10
600
550
500
450
400
350
300
250
200
150
100
50
0
1701601501401301201101009080706050403020100
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
Steps
GC-30, -40, -50 Capacity Flow Curves100 barg (1450 psig) Gas Cooler at 38°C (100°F)
38.7 barg (561 psig) Flash Tank at 5°C (40°F)
Capa
city
(kW
)
Capa
city
(Ton
s)GC-50
GC-40
GC-30
Bulletin 100-80 – Page 5
GAS COOLER VALVE CAPACITY*
FULL STROKE FLOW COEFFICIENTS STANDARD FITTING CONFIGURATIONS
12
10
8
6
4
2
0
14
12
10
8
6
4
2
00 100 125 150 175 200 225 250 300 375 500 625 750 875 1000 1250 1500 1750 2000 2250 2500
Steps
FGB-60, -70 Flow Curves
Flow
Coe
ffici
ent (
kv)
Flow
Coe
ffici
ent (
CvU
S)
FGB-70 Kv
FGB-70 Cv
FGB-60 Kv
FGB-60 Cv
GAS COOLER 44 bar(g)10°C
50 bar(g)15°C
100 bar(g)38°C
FLASH TANK 30 bar(g)-4°C
38.7 bar(g)5°C
38.7 bar(g)5°C
kWGC-10 27.4 21.9 23.3GC-20 62.1 49.6 58.4GC-30 231 185 218GC-40 444 355 390GC-50 651 520 572
Tons7.8 6.2 6.6
17.7 14.1 16.665.7 52.5 61.9126 101 111185 148 163
Kv CvUS
GC-10 0.16 0.19GC-20 0.48 0.55GC-30 1.46 1.69GC-40 2.80 3.24GC-50 4.15 4.80
FGB-60 7.29 8.43FGB-70 11.12 12.86
1/2” (12.7mm) 3/4” (19.05mm) 1” (25.4mm)GC-10 XGC-20 XGC-30 XGC-40 XGC-50 X
FGB-60 XFGB-70 X
638 psi(g)51°F
725 psi(g)59°F
1450 psi(g)100°F
435 psi(g)24°F
561 psi(g)40°F
561 psi(g)40°F
*Based upon standard fitting sizes.
Page 6 – Bulletin 100-80
Recommended Flash Gas Bypass Valve with GC-10 AS GAS COOLER VALVE
Recommended Flash Gas Bypass Valve with GC-20 AS GAS COOLER VALVE
60
55
50
45
40
35
30
25
20
15
870
820
770
720
670
620
570
520
470
420
370
320
270
220-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
-40 -30 -20 -10 0 10 20 30 40 50 60 70
GC-10 or larger
GC-20 or larger
GC-30 or larger
N/A
Evaporating Temperature (°C)
Flas
h Ta
nk P
ress
ure
(bar
g)
Flas
h Ta
nk P
ress
ure
(psi
g)
Evaporating Temperature (°F)
60
55
50
45
40
35
30
25
20
15
870
820
770
720
670
620
570
520
470
420
370
320
270
220-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
-40 -30 -20 -10 0 10 20 30 40 50 60 70
GC-20 or larger
GC-30 or larger
GC-40 or larger
N/A
Evaporating Temperature (°C)
Flas
h Ta
nk P
ress
ure
(bar
g)
Flas
h Ta
nk P
ress
ure
(psi
g)
Evaporating Temperature (°F)
Bulletin 100-80 – Page 7
Recommended Flash Gas Bypass Valve with GC-30 AS GAS COOLER VALVE
Recommended Flash Gas Bypass Valve with GC-40 AS GAS COOLER VALVE
60
55
50
45
40
35
30
25
20
15
870
820
770
720
670
620
570
520
470
420
370
320
270
220-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
-40 -30 -20 -10 0 10 20 30 40 50 60 70
GC-30 or larger
GC-40 or larger
FGB-60 or larger
N/A
Evaporating Temperature (°C)
Flas
h Ta
nk P
ress
ure
(bar
g)
Flas
h Ta
nk P
ress
ure
(psi
g)
Evaporating Temperature (°F)
60
55
50
45
40
35
30
25
20
15
870
820
770
720
670
620
570
520
470
420
370
320
270
220-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
-40 -30 -20 -10 0 10 20 30 40 50 60 70
GC-40 or larger
GC-50 or larger
FGB-60 or larger
N/A
Evaporating Temperature (°C)
Flas
h Ta
nk P
ress
ure
(bar
g)
Flas
h Ta
nk P
ress
ure
(psi
g)
Evaporating Temperature (°F)
GC-50 or larger
FGB-70 or multiple FGB valves
Page 8 – Bulletin 100-80
Recommended Flash Gas Bypass Valve with GC-50 AS GAS COOLER VALVE
ACCESSORIES
60
55
50
45
40
35
30
25
20
15
870
820
770
720
670
620
570
520
470
420
370
320
270
220-40 -35 -30 -25 -20 -15 -10 -5 0 5 10 15 20
-40 -30 -20 -10 0 10 20 30 40 50 60 70
GC-50 or larger
FGB-60 or larger
FGB-70 or multiple FGB valves
N/A
Evaporating Temperature (°C)
Flas
h Ta
nk P
ress
ure
(bar
g)
Flas
h Ta
nk P
ress
ure
(psi
g)
Evaporating Temperature (°F)
PSD4BX3XXXVP - Interface Board/Positioner
PSS4B - Backup Power Module
PSK3LXP2SA01 - CO2 Controller
L1
L2
L3
VBAT
GND
DO1
BACKUP SUPPLY
~ +
~ –
POWER SUPPLY
5.04
” (1
28.0
mm
)
2.80” (71.1 mm)2.36” (59.9 mm)
5.04
” (1
28.0
mm
)
2.80” (71.1 mm)2.36” (59.9 mm)
RS-485
GND + –
WHI
TEB
LACK
RED
GREE
N
VBAT
T
0-10
V4-
20m
A-
PUMPDOWN
GBAT
T
ON
STEP 1
STEP 2
COM
POWER SUPPLY
V~ + – V~ – –
TO EEV VALVE
ON
RUN
CAN
L1
NO6
NO7
CO6/
7
DIGITAL OUTPUTS
RS485
NO4
NO5
CO3/
4/5
NO2
NO1
CO1/
2
NO3
DIGITAL OUTPUTS
GND
AI7
AI8
AI9
AO4
AO5
AO6
DI6
DI7
DI8
COM
DI9
CO8
NO8
CO8
NO8 NC8
CO9
NO9
CO9
NO9 NC9 DIGITAL OUTPUTS
SSR OUTPUTS
CAN
LT
RS48
5 LT
RS48
5 LT
USB
GRD
A /
+B
/ –
+12V
5VS
GN
DA
O1
AO
2A
O3
DI1
DI2
DI3
AI1
AI2
AI3
AI4
AI5
AI6
DI4
DI5
COM
V~ + – A
/ +
CAN
+
V~ – – B
/ –
CAN
–
5.30
” (1
34.6
mm
)
2.80” (71.1 mm)2.41” (61.2 mm)
Item Description
PSK3LXP2SA01 CO2 Controller
PSD4BX3XXXVP Interface Board/Positioner
PSS4B Backup Power Module
Bulletin 100-80 – Page 9
TYPI
CAL
WIR
ING
DIA
GRAM
- G
AS C
OO
LER
VAL
VE
Fuse2A-T 250V
FLAS
H TA
NK
PRES
SURE
SUCT
ION
PRES
SURE
4-20
mA
0-16
0ba
r
4-20
mA
0-60 ba
r
4-20
mA
0-60 ba
r
GAS
COOL
ERPR
ESSU
RE
PT1000
GAS
COO
LER
OUT
LET
TEM
PERA
TURE
24V
AC/D
C 24V
0V
DI1
(Ena
ble)
DI2
(HR)
DI3
(Prl
Cmp)
D03
(Max
FT
Pres
sure
& G
CV C
lose
d)
D05
(FG
V Re
-syn
chro
)
D01
(Lim
it Ex
ceed
ed)
D02
(Sen
sor F
ault)
DI4
(Xtra
Cap
)
GC
Ext
Set 0
-10V
FT E
xtSe
t 0-1
0V
FGV
OD
D06
(Pos
ition
er F
ault)
24V
AC/
DC
DI5
(Opt
iona
l Pos
ition
er A
larm
)
PSS4
BB
acku
p Po
wer
Mod
ule
PS4B
X3XX
XVP
Inte
rfac
e B
oard
/Pos
ition
er
PSK3
LXP2
SA01
CO2 C
ontr
olle
r
Fuse2A-T 250V
Fuse
2A-T
250
V
RS-4
85
GND
+–
WHITE
BLACK
RED
GREEN
24V
AC/D
C
24V
0V
VBATT
SO1A
SO1B
SO2A
SO2B
D04
(GCV
Re-
sync
hro)
0-10V4-20mA-
Gas
Coo
ler V
alve
PUM
PDOW
N
GCV
OD
0-10
V In
put (
S+)
OR4-
20m
A In
put (
S+)
Inpu
t Sig
nal R
efer
ence
(S-)
GBATT
GND
GND
GND
DI01
AI
AI
L1 L2 L3
ON RUN
CAN
L1
ON STEP
1
STEP
2
COM
VBAT
GND
DO1
BA
CKU
P SU
PPLY
NO6
NO7
CO6/7
DIG
ITA
L O
UTP
UTS
RS48
5
NO4
NO5
CO3/4/5
NO2
NO1
CO1/2
NO3
DIG
ITA
L O
UTP
UTS
GNDAI7AI8AI9AO4AO5AO6DI6DI7DI8
COMDI9
CO8
NO8
CO8
NO8
NC8
CO9
NO9
CO9
NO9
NC9
DIG
ITA
L O
UTP
UTS
SSR
OU
TPU
TS
POW
ER S
UPP
LY
CAN LT RS485 LTRS485 LT
USB
V~ + –
V~ – –
GRDA / +B / –
~ +
~ –
POW
ER S
UPP
LYTO
EEV
VA
LVE
+12V5VSGNDAO1AO2AO3DI1DI2DI3
AI1AI2AI3AI4AI5AI6DI4DI5
COM
V~ + –A / +CAN+
V~ – –B / –CAN–
NO1
CO1
Page 10 – Bulletin 100-80
Bulletin 100-80 / 92016© 2016 Parker Hannifin Corporation
Parker Hannifin CorporationSporlan Division206 Lange Drive • Washington, MO 63090 USAphone 636 239 1111 • fax 636 239 9130www.sporlan.com
VALVE NOMENCLATURE AVAILABLE VALVE ITEM NUMBERS (LESS CABLE)
Valve Family - Capacity Connection Size Cable
GC
10
1/2”3/4”1”
LESS CABLE10’ (3m)20’ (6m)30’ (9m)
40’ (12m)
20304050
FGB60
1”70
1/2” 3/4” 1”GC-10 953370
Upon RequestGC-20 953371GC-30 953372 953373GC-40
Upon Request
953374GC-50 953375
FGB-60 953376FGB-70 953377
VALVE CABLES (M12 CONNECTION WITH STRIPPED ENDS)
Item Length
805194 10’ (3m)
805195 20’ (6m)
805343 30’ (9m)
805344 40’ (12m)