Regulators
Direct Operated
Temperature
Self Acting
Temperature Control Systems
SA123
SA121 and
SA128
Description
A range of self-powered control systems that incorporate sensor, actuator,
set point adjustment/indicator for use with the folowing valve types:
KA, KB, KC, KX, KY, SB, SBRA, BX, BXRA, BM,
2-port
BMRA, BMF, BMFRA, NS, NSRA,
3-port
TW
4
4
Available Types
Set point adjustment at sensor
2-port valves
3-port valves
2-port valves
SA128
For use on
3-port valves
Set point adjustment at valve
2-port valves
SA122
For use on
3-port valves
Remote set point adjustment
2-port valves
SA123
For use on
3-port valves
Connection - NPT
SA121
For use on
1/2”
3/4”
1/2”
3/4”
to 3”
to 1-1/2”
to 1”
and 1”
2
2
6
7
1/2” to 1”
3/4” and 1”
3
1/2” to 3”
3/4” to 1-1/2”
1
3
1
Optional Extras
3
2
Union Kit (SA122) Direct immersion
Pocket
Indirect immersion
Material options include mild steel, copper, brass, stainless steel
Glass option also available for SA122 and SA123 only
Wall bracket
Duct adaptor
Duct mounting
Coiled Sensor
Fast response
Nickel plating
Dial Type Set Point Adjuster
SA122TP and SA123TP incorporate an
Pt100 Temperature Sensor
internal pocket to accept a Pt100 sensor.
Dial
adjustment
option
SA122
1
4
Temperature Ranges
Set point adjustment at sensor
Construction Materials
No
1
2
3
4
*5
6
7
*8
Part
Sensor
Actuator
Capillary tube
Adjustment head
Union kit
Mounting bracket
Clip
Adaptor plate
(Duct fixing adaptor)
Material
Brass
Brass
Copper with a PVC coated armoured covering
Polypropylene
Brass
Steel
Polypropylene
Steel
Mild steel
Copper
*9 Pocket
Brass
Stainless steel
10 Liquid fill
Kerosene
*Items 5,8, and 9 are shown overleaf
SA121
SA123
Over temperature protection
SA122
980 CEW2
2871 C106
2817 CZ126
3605 CFS 316S 18
Range 1
Range 2
Over temperature protection
SA128
BS
BS
BS
BS
Range 1
Range 2
Range 3
Range 1
Range 2
Over temperature protection
5˚ to 125˚F (-15˚C to 50˚C)
105° to 225°F (40° to 105°C)
205˚ to 320˚F (95˚C to 160˚C)
100˚F (55˚C) over set value to
375˚F (190˚C) maximum
0˚ to 250˚F (-20˚C to 120˚C)
105˚ to 340˚F (40˚C to 170˚C)
100˚F (55˚C) over set value to
375˚F (190˚C) maximum
0˚ to 230˚F (-20˚C to 110˚C)
105˚ to 340˚F (40˚C to 170˚C)
100˚F (55˚C) over set value to
375˚F (190˚C) maximum
Capillary Tube
Standard length 2 m, 4m, 8m, and 20 m.
Local regulation may restrict the use of this product below the conditions quoted. Limiting conditions refer to standard connections only.
In the interests of development and improvement of the product, we reserve the right to change the specification.
TI-1-900-US 05.11
1: 28
Regulators
Self Acting Temperature Control Systems
Pockets
J
SA121, SA1219 and
SA128
SA122 TP
SA122
SA123 TP
SA123
Direct Operated
Temperature
Metal
B
A
A
C
C
A
E
H
F
C
6
(optional)
For a wall
mounted
sensor
6
D
(included)
D
Glass
D
G
Dimensions / Weight (approximate) in inches & millimeters
Model
SA121
SA122
SA122TP
SA123
SA123TP
SA128
A
11.0 (275)
16.3 (415)
16.3 (415)
11.0 (275)
11.0 (275)
11.0 (275)
B
7.2 (185)
7.2 (185)
Control System
C
D
12.2 (310)
1.0 (25)
9.4 (240)
.67 (17)
10.4 (225)
.67 (17)
9.7 (248
1.0 (25)
10.4 (225)
1.0 (25)
6.7 (178)
1.0 (25)
Metal Pockets
F
G
12.5 (315)
1.1 (28)
10.1 (258)
.8 (20)
10.1 (258)
.8 (20)
10.1 (258)
1.1 (28)
10.1 (258)
1.1 (28)
7.0 (180)
1.1 (28)
E
10.6 (270)
10.6 (270)
-
Union Kit
Union Kit
(for sensor immersion without pocket)
Includes gland nut, compression ring and union nipple.
SA121, SA123 and SA128
Items Z, Y and X included with controller
SA122
Items W, V and U optional - not included
Glass Pockets
H
J
255 (575) 4.5 (117)
225 (575) 4.5 (117)
-
Z
Y
5
Weight
excluding
4.5lb (2.0)
4.0lb (1.8)
4.5lb (2.0)
5.8lb (2.5)
5.8lb (2.7)
4.0lb (1.8)
Pocket
(glass)
W
P
V
O
5
U
Pockets (for indirect immersion)
Includes pocket, gland nut, and compression ring.
SA121, SA123 and SA128
Items T, Z, and Y
SA122
Items S, W, and W
Available materials
Mild steel, copper, brass
and stainless steel
Long Pockets
(SA122 and SA123 only)
To special order only.
Having a minimum length 0.5m, maximum length to order.
Includes pocket, bracket and rubber bung.
SA121 and SA123
Items S, V, W and T, Z, Y
Available Materials
Mild steel, copper, brass
and stainless steel
X
1”NPT
3/4” NPT
Z
W
Y
V
9
3
/ 4”
NPT
1”
NPT
9
R
Pocket
(Metal)
T
S
Glass Pockets (SA122 and SA123 only)
Wall Mounting Bracket
SA121,
SA123,
and
SA128
(Item 6)
SA121, SA122, SA123 and SA128
8
Optional
Duct Fixing Adaptor (for air sensing within ducts)
Includes adaptor plate, union nipple, compression ring and
gland nut.
SA121, SA123 and SA128
Items 8, X, Y, and Z
SA122
Not available
SA122
(112mm)
4.4”
X
Y
Z
Duct fixing
adaptor
(112mm)
4.4”
TI-1-900-US
Spirax Sarco, Inc., 1150 Northpoint Blvd, Blythewood, SC 29016
© Spirax Sarco, Inc. 2011
To special order only.
Includes pocket, bracket and rubber bung.
SA122 and SA123
Items R, O, and P
05.11
Telephone: (803) 714-2000 FAX (803) 714-2222
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