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ManualsBrandsEmerson Flow Controls ManualsA Series Thermal Expansion Valves3/8" x 1/2" ODF S/T Thermal Expansion Valve (2-1/2 Ton)
81828384858687888990
EX Valves & Controls
89
143
Electrical Control Valves Series EXM/EXL
for OEM use, stepper motor driven
Features
• Unipolar stepper motor
• Bi-flow (same performance in both flow directions in term
of capacity)
• High MOPD: 40 bar in normal flow direction
• Removable coils in two versions: 12VDC/24VDC
•
Continuous modulation of mass flow, no stress (liquid ham-
mering) in the refrigeration circuit
• Linear flow
• Resolution: 500 pulses (half steps) or 250 full steps
• Hermetic design
• Only Bulk packing in boxes of 10 identical pieces
• Reliability: 225 millions pulses at continuous 40 bar
differential pressure
• The valve is not released for refrigeration applications such
as cold rooms and refrigeration display cabinets.
Selection Chart
The nominal capacity is based on the following conditions:
Refrigerant Evaporating temperature Condensing temperature Subcooling
R407C +4°C (dew point)
+38°C bubble point /
+43°C dew point
1K
R134a, R410A +4°C +38°C 1K
Max. allowable pressure PS 45 bar
MOPD 40 bar in normal flow direction
Temperature range TS -30 to +70°C (liquid refrigerant)
-30 to +60°C (ambient)
CE marking Not required
Weight Valve EXM: 65 g, EXL: 76 g
Coil EXM: 124 g, EXL: 156 g
Package and delivery Bulk pack with 10 pieces
Stepper motor type Uni-polar, constant voltage
Full travel time 16.6 seconds at 30 pulse/sec.
5.5 seconds at 90 pulse/sec
Reference position Mechanical stop at fully close position
Total number of pulses 500 half step (250 full step)
Insulation class EXM: A
EXL: E
Cable length 1m
Technical Data
EXM/EXL with Coil
Type Part No. Description
Nominal Capacity kW
Connection
size/style
R410A R407C R134a
EXM-B0A 800 399M Valve less coil 1.8 1.6 1.2
1/4“ ODM
EXM-B0B 800 400M Valve less coil 5.5 5.0 3.7
EXM-B0D 800 401M Valve less coil 11.6 10.5 7.7
EXM-B0E 800 402M Valve less coil 13.7 12.4 9.1
EXM-125 800 403M Coil 12VDC, 5 wires
- - -
EXM-24U 800 415M Coil 24VDC, 6 wires
- - -
EXL-B1F 800 405M Valve less coil 17.0 15.4 11.3
1/4“ ODF
8 mm ODM
EXL-B1G 800 406M Valve less coil 23.0 20.7 15.2
EXL-125 800 407M Coil 12VDC, 5 wires
- - -
EXL-24U 800 416M Coil 24VDC, 6 wires
- - -
143
Electrical Control Valves Series EXM/EXL
for OEM use, stepper motor driven
Features
• Unipolar stepper motor
• Bi-flow (same performance in both flow directions in term
of capacity)
• High MOPD: 40 bar in normal flow direction
• Removable coils in two versions: 12VDC/24VDC
• Continuous modulation of mass flow, no stress (liquid ham-
mering) in the refrigeration circuit
• Linear flow
• Resolution: 500 pulses (half steps) or 250 full steps
• Hermetic design
• Only Bulk packing in boxes of 10 identical pieces
• Reliability: 225 millions pulses at continuous 40 bar
differential pressure
• The valve is not released for refrigeration applications such
as cold rooms and refrigeration display cabinets.
Selection Chart
The nominal capacity is based on the following conditions:
Refrigerant Evaporating temperature Condensing temperature Subcooling
R407C +4°C (dew point)
+38°C bubble point /
+43°C dew point
1K
R134a, R410A +4°C +38°C 1K
Max. allowable pressure PS 45 bar
MOPD 40 bar in normal flow direction
Temperature range TS -30 to +70°C (liquid refrigerant)
-30 to +60°C (ambient)
CE marking Not required
Weight Valve EXM: 65 g, EXL: 76 g
Coil EXM: 124 g, EXL: 156 g
Package and delivery Bulk pack with 10 pieces
Stepper motor type Uni-polar, constant voltage
Full travel time 16.6 seconds at 30 pulse/sec.
5.5 seconds at 90 pulse/sec
Reference position Mechanical stop at fully close position
Total number of pulses 500 half step (250 full step)
Insulation class EXM: A
EXL: E
Cable length 1m
Technical Data
EXM/EXL with Coil
Type Part No. Description
Nominal Capacity kW
Connection
size/style
R410A R407C R134a
EXM-B0A 800 399M Valve less coil 1.8 1.6 1.2
1/4“ ODM
EXM-B0B 800 400M Valve less coil 5.5 5.0 3.7
EXM-B0D 800 401M Valve less coil 11.6 10.5 7.7
EXM-B0E 800 402M Valve less coil 13.7 12.4 9.1
EXM-125 800 403M Coil 12VDC, 5 wires
- - -
EXM-24U 800 415M Coil 24VDC, 6 wires
- - -
EXL-B1F 800 405M Valve less coil 17.0 15.4 11.3
1/4“ ODF
8 mm ODM
EXL-B1G 800 406M Valve less coil 23.0 20.7 15.2
EXL-125 800 407M Coil 12VDC, 5 wires
- - -
EXL-24U 800 416M Coil 24VDC, 6 wires
- - -
Features
for OEM use, stepper motor driven
Unipolar stepper motor
143
Electrical Control Valves Series EXM/EXL
for OEM use, stepper motor driven
Features
• Unipolar stepper motor
• Bi-flow (same performance in both flow directions in term
of capacity)
• High MOPD: 40 bar in normal flow direction
• Removable coils in two versions: 12VDC/24VDC
• Continuous modulation of mass flow, no stress (liquid ham-
mering) in the refrigeration circuit
• Linear flow
• Resolution: 500 pulses (half steps) or 250 full steps
• Hermetic design
• Only Bulk packing in boxes of 10 identical pieces
• Reliability: 225 millions pulses at continuous 40 bar
differential pressure
• The valve is not released for refrigeration applications such
as cold rooms and refrigeration display cabinets.
Selection Chart
The nominal capacity is based on the following conditions:
Refrigerant Evaporating temperature Condensing temperature Subcooling
R407C +4°C (dew point)
+38°C bubble point /
+43°C dew point
1K
R134a, R410A +4°C +38°C 1K
Max. allowable pressure PS 45 bar
MOPD 40 bar in normal flow direction
Temperature range TS -30 to +70°C (liquid refrigerant)
-30 to +60°C (ambient)
CE marking Not required
Weight Valve EXM: 65 g, EXL: 76 g
Coil EXM: 124 g, EXL: 156 g
Package and delivery Bulk pack with 10 pieces
Stepper motor type Uni-polar, constant voltage
Full travel time 16.6 seconds at 30 pulse/sec.
5.5 seconds at 90 pulse/sec
Reference position Mechanical stop at fully close position
Total number of pulses 500 half step (250 full step)
Insulation class EXM: A
EXL: E
Cable length 1m
Technical Data
EXM/EXL with Coil
Type Part No. Description
Nominal Capacity kW
Connection
size/style
R410A R407C R134a
EXM-B0A 800 399M Valve less coil 1.8 1.6 1.2
1/4“ ODM
EXM-B0B 800 400M Valve less coil 5.5 5.0 3.7
EXM-B0D 800 401M Valve less coil 11.6 10.5 7.7
EXM-B0E 800 402M Valve less coil 13.7 12.4 9.1
EXM-125 800 403M Coil 12VDC, 5 wires
- - -
EXM-24U 800 415M Coil 24VDC, 6 wires
- - -
EXL-B1F 800 405M Valve less coil 17.0 15.4 11.3
1/4“ ODF
8 mm ODM
EXL-B1G 800 406M Valve less coil 23.0 20.7 15.2
EXL-125 800 407M Coil 12VDC, 5 wires
- - -
EXL-24U 800 416M Coil 24VDC, 6 wires
- - -
Electrical Control Valves Series EXM/EXL
for OEM use, stepper motor driven
EXM/EXL Series