New perspectives with
New perspectives with
Danfoss Saginomiya 4 - Way Reversing Valves
Danfoss Saginomiya 4 - Way Reversing Valves
Reliable season change
Reliable season change
REFRIGERATION AND
AIR CONDITIONING
STF 4-way reversing valves
• Wide application range
- complete capacity range
- available for all common refrigerants (R407C,
R410A, R404A, R134a, R22)
- many different connection diameters and
congurations
• High reliability
- unique design
- instantaneous changeover at minimum pressure
differential
- mechanism to prevent incomplete changeover
- minimized leakage
• CE approved
4 - way r e v e r s i n g va lv e s s e l e c t i o n
The 4 way valves are used in reversible applications such as heat pumps or reversible
air conditioning units and chillers.
The 4 way valve allows an inversion of the refrigeration cycle, changing from cooling
mode in summer to heating mode in winter.
The cycle inversion is initiated by a small solenoid pilot valve, which pilots the movement
of a slider, which changes the direction of the refrigerant. The valve is connected to the
discharge and suction pipes.
technical data and selection criteria r 407 c
Model number
Discharge Suction Capacity / kW [condition 1]
I.D. mm O.D. inch I.D. mm O.D. inch Δ p: 0,1 bar Δ p: 0,2 bar Δ p: 0,1 bar Δ p: 0,2 bar pcs.
(1)
Capacity / kW [condition 2]
STF-0101G 8.10 5/16” 9.70 3/8” 3.76 5.30 3.48 4.90 A
STF-0104G 8.10 5/16” 9.70 3/8” 4.45 6.26 4.11 5.79 A 061L1143 45
STF-0201G 9.70 3/8” 12.95 1/2” 7.18 10.11 6.63 9.34 A
STF-0204G 9.70 3/8” 16.03 5/8” 7.18 10.11 6.63 9.34 D 061L1145 32
STF-0205G 8.10 5/16” 12.95 1/2” 7.18 10.11 6.63 9.34 B 061L1146 32
STF-0208G 9.70 3/8” 16.03 5/8” 7.18 10.11 6.63 9.34 C 061L1147 32
STF-0209G 9.70 3/8” 12.95 1/2” 7.18 10.11 6.63 9.34 B 061L1148 32
STF-0214G 12.95 1/2” 16.03 5/8” 7.18 10.11 6.63 9.34 D 061L1149 32
STF-0301G 12.95 1/2” 16.15 5/8” 8.73 12.29 8.06 11.34 E
STF-0306G 12.95 1/2” 19.20 3/4” 8.73 12.29 8.06 11.34 E 061L1151 32
STF-0401G 12.80 1/2” 19.15 3/4” 15.91 22.40 14.70 20.70 B
STF-0404G 12.80 1/2” 19.15 3/4” 18.13 25.53 16.76 23.60 B 061L1193 24
STF-0409G 12.80 1/2” 22.40 7/8” 15.91 22.40 14.70 20.70 B 061L1154 24
STF-0413G 16.00 5/8” 22.40 7/8” 15.91 22.40 14.70 20.70 B 061L1155 24
STF-0420G 12.80 1/2” 22.40 7/8” 18.13 25.53 16.76 23.60 B 061L1156 24
STF-0712G 19.15 3/4” 22.30 7/8” 27.03 38.05 24.98 35.17 B
STF-0715G 22.50 7/8” 28.70 1 1/8” 27.03 38.05 24.98 35.17 B 061L1158 6
STF-0728G 22.50 7/8” 22.30 7/8” 27.03 38.05 24.98 35.17 B 061L1160 6
STF-1511G 22.50 7/8” 28.90 1 1/8” 30.12 42.39 27.82 39.17 F 061L1224 1
STF-1513G 22.50 7/8” 35.22 1 3/8” 30.12 42.39 27.82 39.17 F 061L1217 1
STF-1514G 28.90 1 1/8” 35.22 1 3/8” 30.12 42.39 27.82 39.17 F 061L1218 1
STF-2011G 22.50 7/8” 28.90 1 1/8” 38.49 54.18 35.56 50.08 B 061L1219 1
STF-2017G 28.90 1 1/8” 35.20 1 3/8” 38.49 54.18 35.56 50.08 B 061L1225 1
STF-2501G 25.70 1” 32.05 1 1/4” 58.18 81.89 53.74 75.68 G
STF-2505G 28.90 1 1/8” 35.20 1 3/8” 58,18 81.89 53.74 75.68 G 061L1279 1
STF-2506G 28.90 1 1/8” 41.70 1 5/8” 58,18 81.89 53.74 75.68 G 061L1280 1
STF-3001G 32.05 1 1/4” 38.40 1 1/2” 82.13 115.61 75.87 106.83 G 061L1281 1
STF-3003G 28.50
(4)
1 1/8”
(5)
41.70 1 5/8” 82.13 115.61 75.87 106.83 G 061L1282 1
STF-3006G 32.05 1 1/4” 41.70 1 5/8” 82.13 115.61 75.87 106.83 G 061L1283 1
STF-4001G 38.35 1 1/2” 45.15 1 3/4” 114.64 161.37 105.90 149.12 G 061L1284 1
STF-4002G 41.20
(4)
STF-4003G 35.40 1 3/8”
1 5/8”
(5)
41.70 1 5/8” 114.64 161.37 105.90 149.12 G 061L1285 1
(5)
42.40 1 5/8”
(5)
114.64 161.37 105.90 149.12 G 061L1293 1
STF-5001G 38.35 1 1/2” 54.40 2 1/8” 148.86 209.54 137.52 193.64 G 061L1286 1
STF-5002G 41.20
STF-6001G 41.20
(1)
condition 1: 38°C condensing / 5°C evaporating / 5°C super-heat / 0°C sub-cooling
(2)
condition 2: 54,4 °C condensing / 7,2°C evaporating / 5°C super-heat / 5°C sub-cooling
(3)
see valve style overview on page 7
(4)
- refers to O.D.
(5)
- refers to I.D.
(6)
- STF-2501G does not have a bracket
(4)
(4)
1 5/8”
1 5/8”
(5)
54.40 2 1/8” 148.86 209.54 137.52 193.64 G 061L1287 1
(5)
67.00 2 5/8” 236.40 333.56 192.52 275.72 G 061L1326 1
(2)
Valve
style
(3)
Code number
061L1206 4
061L1188 45
061L1207 3
061L1144 32
061L1208 4
061L1194 32
061L1209 2
061L1152 24
061L1223 1
061L1195 6
(6)
061L1278 1
Qty per box
Max working pressure: 45 bar
Ambient temperature : -20oC to 55oC
NOTE R407C and R410A: For discharge and suction, I.D. describes exact inner diameter of valve connections. O.D. relates to the outer diameter
of connection pipe in the system.
- 2 -
4 - way reversing valves selection
The pilot valve ensures a very reliable changeover from cooling to heating mode; the
changeover happens instantaneously with a minimum pressure differential. The valve
design also guarantees a minimum pressure drop and a very low risk of leakage.
The STF models offer a wide range of connection dimensions, congurations and
capacity for specic applications. The standard STF models are packed as 1 pc. per
box providing increased exibility.
technical data and selection criteria r 410 a
Model number
STF-0101G 8.10 5/16” 9.70 3/8” 4.61 6.50 4.16 5.87 A
STF-0104G 8.10 5/16” 9.70 3/8” 5.46 7.69 4.91 6.93 A 061L1143 45
STF-0201G 9.70 3/8” 12.95 1/2” 8.81 12.43 7.94 11.20 A
STF-0204G 9.70 3/8” 16.03 5/8” 8.81 12.43 7.94 11.20 D 061L1145 32
STF-0205G 8.10 5/16” 12.95 1/2” 8.81 12.43 7.94 11.20 B 061L1146 32
STF-0208G 9.70 3/8” 16.03 5/8” 8.81 12.43 7.94 11.20 C 061L1147 32
STF-0209G 9.70 3/8” 12.95 1/2” 8.81 12.43 7.94 11.20 B 061L1148 32
STF-0214G 12.95 1/2” 16.03 5/8” 8.81 12.43 7.94 11.20 D 061L1149 32
STF-0301G 12.95 1/2” 16.15 5/8” 10.69 15.08 9.63 13.59 E
STF-0306G 12.95 1/2” 19.2 3/4” 10.69 15.08 9.63 13.59 E 061L1151 32
STF-0401G 12.80 1/2” 19.15 3/4” 19.50 27.51 17.58 24.80 B
STF-0404G 12.80 1/2” 19.15 3/4” 22.23 31.35 20.03 28.26 B 061L1193 24
STF-0409G 12.80 1/2” 22.40 7/8” 19.50 27.51 17.58 24.80 B 061L1154 24
STF-0413G 16.00 5/8” 22.40 7/8” 19.50 27.51 17.58 24.80 B 061L1155 24
STF-0420G 12.80 1/2” 22.40 7/8” 22.23 31.35 20.03 28.26 B 061L1156 24
STF-0712G 19.15 3/4” 22.30 7/8” 33.14 46.74 29.85 42.11 B
STF-0715G 22.50 7/8” 28.70 1 1/8” 33.14 46.74 29.85 42.11 B 061L1158 6
STF-0728G 22.50 7/8” 22.30 7/8” 33.14 46.74 29.85 42.11 B 061L1160 6
STF-1511G 22.50 7/8” 28.90 1 1/8” 36.90 52.05 33.25 46.90 F 061L1224 1
STF-1513G 22.50 7/8” 35.22 1 3/8” 36.90 52.05 33.25 46.90 F 061L1217 1
STF-1514G 28.90 1 1/8” 35.22 1 3/8” 36.90 52.05 33.25 46.90 F 061L1218 1
STF-2011G 22.50 7/8” 28.90 1 1/8” 47.19 66.55 42.52 59.98 B 061L1219 1
STF-2017G 28.90 1 1/8” 35.20 1 3/8” 47.19 66.55 42.52 59.98 B 061L1225 1
STF-2501G 25.70 1” 32.05 1 1/4” 71.30 100.56 64.24 90.62 G
STF-2505G 28.90 1 1/8” 35.20 1 3/8” 71.30 100.56 64.24 90.62 G 061L1279 1
STF-2506G 28.90 1 1/8” 41.70 1 5/8” 71.30 100.56 64.24 90.62 G 061L1280 1
STF-3001G 32.05 1 1/4” 38.40 1 1/2” 100.66 141.98 90.71 127.96 G 061L1281 1
STF-3003G 28.50
STF-3006G 32.05 1 1/4” 41.70 1 5/8” 100.66 141.98 90.71 127.96 G 061L1283 1
STF-4001G 38.35 1 1/2” 45.15 1 3/4” 140.51 198.18 126.61 178.60 G 061L1284 1
STF-4002G 41.20
STF-4003G 35.40 1 3/8”
STF-5001G 38.35 1 1/2” 54.40 2 1/8” 175.11 246.98 157.78 225.58 G 061L1286 1
STF-5002G 41.20
STF-6001G 41.20
(1) - (5)
please see page 2.
Discharge Suction Capacity / kW [condition 1]
I.D. mm O.D. inch I.D. mm O.D. inch Δ p: 0,1 bar Δ p: 0,2 bar Δ p: 0,1 bar Δ p: 0,2 bar pcs.
(4)
(4)
(4)
(4)
1 1/8”
1 5/8”
1 5/8”
1 5/8”
(5)
41.70 1 5/8” 100.66 141.98 90.71 127.96 G 061L1282 1
(5)
41.70 1 5/8” 140.51 198.18 126.61 178.60 G 061L1285 1
(5)
42.40 1 5/8”
(5)
54.40 2 1/8” 175.11 246.98 157.78 225.58 G 061L1287 1
(5)
67.00 2 5/8” 293.37 413.77 242.57 342.19 G 061L1326 1
(5)
140.51 198.18 126.61 178.60 G 061L1293 1
standard coils selection
Code no. Type
061L2092 STF-01AB500A1 600 24 10 6 (5)
Standard coils are water-proof (IP65)
(codication of coils see page 7)
061L2038 STF-01AB503B1 1200 24 100 6 (5)
061L2125 STF-01AJ504F1 1200 208 to 240 10 1
061L2094 STF-01AJ504F1 1200 208 to 240 10
061L2016 STF-01AJ504F1 1200 208 to 240 100
061L2093 STF-01AJ506B1 600 220 to 240 10 6
061L2095 STF-01AJ512D1 2000 220 to 240 10
061L2074 STF-01AJ512D1 2000 220 to 240 60
- 3 -
(1)
Capacity / kW [condition 2]
length [mm]
Cable
2)
(
Valve
(3)
style
(6)
Rated
voltage [V AC]
Code number
061L1206 4
061L1188 45
061L1207 3
061L1144 32
061L1208 4
061L1194 32
061L1209 2
061L1152 24
061L1223 1
061L1195 6
061L1278 1
Qty per box
[pcs.]
Qty per box
50Hz (60Hz)
Watts
6
6
capacity chart s
1 10 100
Capacity [kW]
0.01
0.10
1.00
Suction pressure drop [bar]
Capacity* for 4-way reversing valves
type STF-G
STF-0101G
STF-0104G
STF-0[201, 204, 205, 208, 209, 214]G
STF-0[301, 306]G
STF-0[401, 409, 413]G
STF-0[404, 420]G
STF-0[712, 715, 728]G
STF-[1511, 1513, 1514]G
STF-[2011, 2017]G
STF-[2501, 2505, 2506]G
STF-[3001, 3003, 3006]G
STF-[4001, 4002, 4003]G
STF-[5001, 5002]G
STF-6001G
A
B
C
D
E
F
G
H
I
J
K
L
M
R407C
* based on: Condesing Temp = 54,4 °C, Evaporating Temp = 7 ,2 °C
Superheat Temp = 5 K, Supercool Temp = 5 K
0.15
0.25
0.20
0.30
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
5 50 500
N
A C D E F G H I J K L
M NB
1 10 100
Capacity [kW]
0.01
0.10
1.00
Suction pressure drop [bar]
Capacity* for 4-way reversing valves
type STF-G
STF-0101G
STF-0104G
STF-0[201, 204, 205, 208, 209, 214]G
STF-0[301, 306]G
STF-0[401, 409, 413]G
STF-0[404, 420]G
STF-0[712, 715, 728]G
STF-[1511, 1513, 1514]G
STF-[2011, 2017]G
STF-[2501, 2505, 2506]G
STF-[3001, 3003, 3006]G
STF-[4001, 4002, 4003]G
STF-[5001, 5002]G
STF-6001G
A B C D E F G H I J K L M
A
B
C
D
E
F
G
H
I
J
K
L
M
R410A
* based on: Condesing Temp = 54,4 °C, Evaporating Temp = 7 ,2 °C
Superheat Temp = 5 K, Supercool Temp = 5 K
0.15
0.25
0.20
0.30
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
5 50 500
N
N
- 4 -
capacity chart s
110100
Capacity [kW]
0.01
0.10
1.00
Suction pressure drop [bar]
Capacity* for 4-way reversing valves
type STF-G
STF-0101G
STF-0104G
STF-0[201, 204, 205, 208, 209, 214]G
STF-0[301, 306]G
STF-0[401, 409, 413]G
STF-0[404, 420]G
STF-0[712, 715, 728]G
STF-[1511, 1513, 1514]G
STF-[2011, 2017]G
STF-[2501, 2505, 2506]G
STF-[3001, 3003, 3006]G
STF-[4001, 4002, 4003]G
STF-[5001, 5002]G
STF-6001G
A
B
C
D
E
F
G
H
I
J
K
L
M
R134a
* based on: Condesing Temp = 54,4 °C, Evaporating Temp = 7 ,2 °C
Superheat Temp = 5 K, Supercool Temp = 5 K
0.15
0.25
0.20
0.30
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
5 50 500
N
A C D E F G H I J K L M NB
110100
Capacity [kW]
0.01
0.10
1.00
Suction pressure drop [bar]
Capacity* for 4-way reversing valves
type STF-G
STF-0101G
STF-0104G
STF-0[201, 204, 205, 208, 209, 214]G
STF-0[301, 306]G
STF-0[401, 409, 413]G
STF-0[404, 420]G
STF-0[712, 715, 728]G
STF-[1511, 1513, 1514]G
STF-[2011, 2017]G
STF-[2501, 2505, 2506]G
STF-[3001, 3003, 3006]G
STF-[4001, 4002, 4003]G
STF-[5001, 5002]G
STF-6001G
A
B
C
D
E
F
G
H
I
J
K
L
M
R404A
* based on: Condesing Temp = 54,4 °C, Evaporating Temp = 7 ,2 °C
Superheat Temp = 5 K, Supercool Temp = 5 K
0.15
0.25
0.20
0.30
0.09
0.08
0.07
0.06
0.05
0.04
0.03
0.02
5 50 500
N
A C D E F G H I J K L M NB
- 5 -
principles of operati o n
construction and operation in cooling and heating cycle
6
1. discharge connection
2. connection to evaporator/
condenser
3. suction connection
4. connection to condenser/
evaporator
5. valve body
6. slider
1
The valve is composed of three basic components:
- pilot valve
- main valve body, including valve slider
- solenoid coil
The 4-way valve slider is shifted by changes in differen-
5
tial pressure in the valve which is actuated by the pilot
solenoid valve. The valve slider is specially designed
to prevent incomplete changeover and movement with
minimum pressure differential.
winter conditions
4
3
2
When the solenoid coil is energized (Fig 1), the pilot valve moves to the right, and the high pressure uid enters
into the piston chamber. On the other hand, the uid is released from the piston chamber, and the piston and the
slide valve portion moves to the right.
summer conditions
When the solenoid coil is de-energized (Fig.2), the pilot valve moves to the left, and the high pressure uid comes
into the discharge capillary tube, and enters into the piston chamber. On the other hand, the uid is released from
the piston chamber, and the piston and the slide valve portion moves to the left.
Fig 1. HEATING CYCLE
(Coil energized)
Fig. 2 COOLING CYCLE
(Coil not energized)
- 6 -
available valv e a n d c o i l s t y l e s
valves
STF
A B
- 0101G
- 0104G
- 0201G
STF
C D
- 0208G
STF
E F
- 0301G
- 0306G
STF
- 0205G
- 0209G
- 0401G
- 0404G
- 0409G
- 0413G
- 0420G
STF
- 0204G
- 0214G
STF
- 1511G
- 1513G
- 1514G
- 0712G
- 0715G
- 0728G
- 2011G
- 2017G
STF
G
- 2501G*
- 2505G
- 2506G
- 3001G
- 3003G
coils codification
Example:
STF 01A J 504 F 1
I II III IV V VI
I valve type
II coil size
III electrical rating
IV coil body serial number
V lead wire / terminal style serial number
VI screw for coil
- 4001G
- 4002G
- 4003G
- 5001G
- 5002G
I
- 6001G
STF
II
* STF-2501G does not have a bracket
01A applicable for all valve types
24V AC
B
110V AC
D
120V AC
E
III
220V AC
H
230V AC
I
220 to 240V AC
J
208 to 240V AC
Q
IV serial number relating to the coil body
serial number relating to the lead
V
wire / terminal style
VI
1 with screw
0 without screw
- 7 -
installing and handling precautions
For optimum performance of 4 - way reversing valves, observe the following recommendations and guidelines:
installation
360
o
Not possible
360
o
180
o
Possible
Possible
Fig. 1 Fig. 2a Fig. 2b
1. The following installation is possible for 4-way reversing valve:
a. in horizontal position, the orientation of STF series 25, 30, 40, 50 and 60 series should be in the range
from 0o to 180o,.
For the remaining valve types any orientation from 0o to 360o is possible (Fig.1 ).
b. in vertical position, the valves can be installed in any orientation as long as the coil stem position is up (Fig. 2a).
2. Before installing, thoroughly clean the inner part of pipes to prevent dust or dirt particles from entering the valve.
Use 80 to 100 mesh strainer at the valve inlet, if dust or dirt particles inside the pipes may ow into the valve.
3. Do not heat up the body to a temparature higher than 120oC when soldering the joints. Soldering must be carried out
with the coil removed.
4. Do not suspend the valve by the lead wire of the solenoid coil or handle it violently.
5. Do not wrap up the solenoid coil with thermal insulation. This could cause the coil to overheat and burn out.
for mounting of the solenoid coil
1. Make sure the supply voltage conforms with the voltage marked on the coil enclosure (or label).
2. When mounting the solenoid coil, the enclosure xing bolt must be tightened rmly.
3. When wiring the solenoid coil, leave enough slack to ensure that no stresses are applied to the supply wires and coil
connection.
4. When removing the solenoid coil from the body, be sure to cut out the supply power. When you keep the coil energizing
itself for an unnecessary time, the coil might burn out.
Please always refer to the engineering drawings available from Danfoss technical support.
Danfoss Saginomiya Sp. z o.o. can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss
Saginomiya Sp. z o.o. reserves the right to alter its products without notice. This also applies to products already on order, provided that such
alteration can be made without subsequential changes being necessary in specications already agreed. All trademarks in this material are
property of the respective companies. Danfoss Saginomiya and the Danfoss Saginomiya logotype are trademarks of Danfoss Saginomiya
Sp. z o.o. All rights reserved.
DKRCC.PD.BZ0.A8.02
- 8 -
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