Johnson Controls V146 Series Data Sheet
V146 Series Valve
3/4 in. V146EK Valves
Port 1
Port 2
as specified
A
FIG:V146_ rnddim
High Refrigerant Pressure 3/4 in. V146GK1 Valves
E
D
C
A
Port 1
Port 2
FIG:V146GK_dim
V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
Description
The V146 Series Two-Way PressureActuated Water-Regulating Valves regulate
water flow to control refrigerant head pressure
in systems with water-cooled condensers. The
V146 valves are ideal for applications with
system water pressures of up to 350 psig
(24.1 bar), such as high-rise buildings.
V146EK and V146AL valves have an
adjustable opening point in a refrigerant
pressure range of 70 to 260 psi (4.8 to
17.9 bar). V146EK and V146AL valves are
available in a 3/4 in. and 1 in. size. Use these
valves with standard, non-corrosive
refrigerants.
V146GK1 and V146GL1 valves have an
adjustable opening point in a refrigerant
pressure range of 200 to 400 psi (13.8 to
27.6 bar). The V146GK1 and V146GL1 valves
are available in 3/4 in. and 1 in. size for use
with standard, non-corrosive, high-pressure
refrigerants.
Refer to the V146 Series 2-Way
Pressure-Actuated Water-Regulating Valves
Product Bulletin (LIT-121709) for important
product application information.
Valves and Valve Accessories
Features
• no close-fitting or sliding parts in water
passages
• high-pressure design
• pressure-balanced design
• corrosion-resistant material for internal
parts
• accessible range spring
• take-apart construction
Applications
Each application is unique and requires
specific engineering data to properly size and
design a system to fulfill the appropriate
requirements. Typically, a valve is replaced
with another valve of the same size in a
properly sized and engineered system.
Code No. LIT-1900163
B
D
C
Pressure connection and capillary
The performance specifications are nomina l and con form to accep table ind ustry stand ards. For applicati ons at con ditions be yond these specification s, consult th
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.
E
B
R-161
1 in. V146AL Valves
E
D
C
A
Port 1
Port 2
Pressur e connection and capi ll a r y
as specified.
FIG:V146AL_dim
High Refrigerant Pressure 1 in. V146GL1 Valves
E
D
C
A
Port 1
Port 2
FIG:V146GL_dim
Flow =
(Temp. - Temp. )
Outlet Inlet
Flow Required
Valves and Valve Accessories
V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
(Continued)
Valve Dimensions, Inches (Millimeters)
Product Code
Number
V146EK-1C 3/4 in. 3-3/8 (86) 2-3/16 (55) 7-3/16 (183) 4-3/16 (106) 3 (76)
V146GK1-001C 3/4 in. 3-3/8 (86) 2-3/16 (55) 8 (204) 4-3/16 (106) 3-13/16 (98)
V146AL-1C 1 in. 4-3/4 (121) 2-13/16 (72) 10 (254) 5-15/16 (151) 4-1/16 (103)
V146GL1-001C 1 in. 4-3/4 (121) 2-13/16 (72) 10-1/2 (267) 5-15/16 (151) 4-9/16 (116)
Nominal Valve
Size
A B C D E
Selection
To make a rough field estimate of the size of valve for an application,
find the valve size by locating a point on a flow chart that satisfies these
requirements:
• water flow required by the condenser (Flow)
• refrigerant head pressure rise (P
• available water pressure (P
Follow these steps, and use the information obtained to locate a point
on one of the flowcharts that satisfies all three steps.
1. Take the water flow required by the condenser (Flow) from
information provided by the manufacturer of the condensing unit. If
the manufacturer’s information is unavailable, use the following
information to make a rough approximation of maximum water flow
in gallons per minute (gpm) (cubic meters per hour [m
• System Capacity (Tons of Refrigeration)
• Outlet Water Temperature (Temp.
• Inlet Water Temperature (Temp.
The performance specifications are no minal and co nform t o acceptab le ind ustry standar ds. For appl ications at condition s beyond these specifica tions, consult th
Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. © 2015 Johnson Controls, Inc.
AVAIL
RISE
)
Inlet
)
Outlet
)
B
B
Calculate the flow using the following formula:
Tons of Refrigeration x 30
FIG:flw_eqn
Note: If the outlet temperature is unknown, assume it to be 10F
(5.6C) above the inlet temperature.
2. Determine refrigerant head pressure rise above the valve opening
point (P
a. The Valve Closing Pressure (P
3
/hr]):
)
pressure at the highest ambient temperature the refrigeration
equipment experiences in the Off cycle. Use a
Pressure-Temperature Chart for the refrigerant selected to find
this pressure.
b. To approximate the Valve Opening Pressure (P
about 7 psi (0.5 bar) for EK and AL models or 10 psi (0.7 bar) for
GL1 or GK1 models to the Valve Closing Pressure.
R-162
) using the following steps:
RISE
) is equal to the refrigerant
CLOSE
OPEN
), add
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