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

Valve Opening Pressure, EK and AL Models (Top) or GK1 and

GL1 Models (Bottom)

FIG:V14

OPEN CLOSE

OPEN CLOSE

Figure 1: Refrigerant Head Pressure Rise

FIG

P = P - P

Available Water Pressure

Cooling Tower

P

1

P

2

P

Loss 2

2-Way

Valve

P

COND

P

P

1P2

=

-

P

P

P

=

+

+ ...

FIG:2 wy_prss _d



3/4 in. V146EK Valve

55

60

40

45 5035302510 15

20

0

5

10

15

20

25

30

35

40

45

(gpm)

20

30

FIG:V146EK_chrt

1 in. V146AL Valve

10 15 20 25

30

35

40 45 50 55

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

(gpm)

10

40

20

30

50

60

FIG:V146AL_chrt

Pressure Drop Through Valve (psi)

Valves and Valve Accessories

V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
(Continued)

P = P +7 psi (0.5 bar)
P = P +10 psi (0.7 bar)

c. From the Pressure-Temperature Chart for the refrigerant

selected, read the Refrigerant Condensing Pressure (P
(operating head pressure) corresponding to the selected
condensing temperature.

d. Subtract the Valve Opening Pressure from the Refrigerant

Condensing Pressure. This gives the head pressure rise.

RISE COND OPEN

3. Determine the available water pressure to the valve (P
the following steps. This is the actual water pressure available to
force water through the valve.

a. Determine the minimum inlet pressure (P

pressure from city water mains, pumps, or other sources.

b. Pressure drop through condenser (P

water pressure between the condenser inlet and the condenser

COND

outlet. Obtain this information from the condenser manufacturer.

c. Estimate or calculate the pressure drop through all associated

piping (P

d. Subtract the P

LOSS

).

COND

and P

from PIN. The result is P

LOSS

:eqn_hd_prssr_rs

AVAIL

). This is the water

IN

) is the difference in

x_eqn_opn _prssr

COND

) using

AVAIL

The maximum recommended differential water pressure across a
valve is 60 psi (4.1 bar).

Flow

60
50
40

)

10

Pressure Drop Thr ough Valve ( psi )

Refrigerant Head Pressure Rise (psi)

Flow

.

Pump

Condenser

Loss 1

4. Select the proper valve size from the flowcharts by locating a point
on a chart that satisfies the flow, the head pressure rise above
opening point, and the pressure drop across the valve.

Use these equations to convert between U.S. and S.I. units.

•1 dm

• 1 bar = 100 kPa = 0.1 MPa  1.02 kg/cm

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.

P= P- (P+ P)

AVAIL IN COND LOSS

3

/s = 3.6 m3/h = 15.9 U.S. gal. /min. = 13.2 U.K. gal. /min.

LOSS

2

= 0.987 atm  14.5 psi

Loss 2

P

Loss 1

IN

rp

60

Refrigerant Head Pressure Rise (psi)

R-163

High Refrigerant Pressure 3/4 in. V146GK1 Valves

45

40

35

30

25

20

15

10

5

0

Flow
(GPM)

Flow

3

10090

8070605040

302010

Refrigerant Head Pressure Rise (psig)

Refrigerant Head Pressure Rise (bar)

Pressure Drop
Through Valve,
psi (bar)

FIG:V146GK1_chrt

5 (0.3)

2 (0.1)

High Refrigerant Pressure 1 in. V146GL1 Valves

0

10

20

30

40

50

60

70

Flow
GPM

1.3 2.3 3.3 4.3

5.3 6.3 7.3

3

8.2

6.2

4.2

2.2

0.2

)

Refrigerant Head Pressure Rise (psig)

10 20 30

40 50

60

70

80

90

3

FIG:V146GL_chrt

Valves and Valve Accessories

V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
(Continued)

1.70.7

4.73.72.7

5.7

6.7

(m /hr)

60 (4.1)

10

50 (3.4)

40 (2.8)

8

30 (2.1)
25 (1.7)
20 (1.4)

10 (0.7)

6

4

2

0

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.

Refrigerant Head Pressure Rise (bar

Pressure Drop Thr ough Valve psig (m/ hr )

R-164

60 (4.1)

50 (3.4)

40 (2.8)

30 (2.1)

25 (1.7)

20 (1.4)

10 (1.0)

5 (0.3)

2 (0.1)

Flow
m/hr

16.2

14.2

12.2

10.2

Pressure Connection Styles

Style 5

Style 46

1/4-in. SAE E x ternal Flare Connector

Copper Capillary with

1/4-in. SAE Internal Flare Connector

(Inc l udes Valve Stem Depr e ssor)

Valves and Valve Accessories

V146 Series Two-Way Pressure-Actuated Water-Regulating Valves
(Continued)

Selection Chart

Product Code Number Nominal Valve Size Inlet and Outlet Ports Pressure Connection

Style

V146EK-1C 3/4 in. Union (Sweat) 46 4.3 (2.0)
V146GK1-001C 3/4 in. Union (Sweat) 5 4.3 (2.0)
V146AL-1C 1 in. Union (Sweat) 46 9.3 (4.0)
V146GL1-001C 1 in. Union (Sweat) 5 9.3 (4.0)

Shipping Weight, lb (kg)

Repair Information

If the V146 Series Two-Way Pressure-Actuated Water-Regulating Valve fails to operate within its specifications, refer to the V146 Series
Two-Way Pressure-Actuated Water-Regulating Valves Product Bulletin (LIT-1201709) for a list of repair parts available.

Technical Specifications

V146 Series 2-Way Pressure-Actuated Water-Regulating Valves

Maximum Refrigerant Pressure V146EK: 370 psi (25.5 bar)

Maximum Working Pressure V146GK1, V146GL1: 630 psi (43.4 bar)
Opening Point Adjustment Range V146EK, V146AL: 70 to 260 psi (4.8 to 17.9 bar)

Factory-Set Opening Point V146EK, V146AL: 165 psi (11.4 bar)

Media 350 psi (24.1 bar) maximum,

V146AL: 320 psi (22.1 bar)

V146GK1, V146GL1: 200 to 400 psi (13.8 to 27.6 bar)

V146GK1, V146GL1: 275 psi (19.0 bar)

-4F to 170F (-20C to 77C) glycol/water or liquids with low freezing points that are compatible with valve materials

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.

R-165