Brochure

2-Way Globe Valves, Union End (1/2 to 1-1/4 in.) and Flared (1/2 & 5/8 in. O.D.)
with Electric, Hydraulic, and Pneumatic Actuators
F-27414-1 © Copyright 2006 TAC. All Rights Reserved. 15
TABLE 2A. Nominal Two-Way Valve, Hydraulic Actuator Close Off Ratings.
VA, VF, VS
Spring Closes (Normally Closed Spring Opens (Normally Open)
MP-5x1x Analog Actuators: 6 to 9,
0 to 10 Volt, and 4 to 20 mA
MA-521X & MF-521X Digital
Actuators: 2 Position and Floating
All Actuators: Analog, 2 Position,
and Floating
Close Off Rating with Springs Show Psi (kpa)
Size in. (cm) Port Code Unpainted with Booster Unpainted with Booster Black
1/2 (15) 1, 2, 3, 4 250 (1700) 250 (1700) 250 (1700)
3/4 (20) 5, 6 180 (1200) 200 (1300) 200 (1300)
1 (25) 7, 8 60 (410) 90 (620) 150 (1000)
1-1/4 (32) 9 40 (270) 60 (410) 90 (620)
TABLE 2B. Controller Calibration with Spring Usage For VB-7XXX Valves.
MP-521X Series
a
Valve
Size in. (mm) Spring
Controller Calibration
b
Nominal Control Range
b
VB-721X
Normally Open
1/2 to 1-1/4
(15 to 32)
large unpainted
7.5 volts 6 to 9 volts
15 mA 12 to 18 mA
1/2 to 2
(15 to 50)
Black
c
(highest close off)
5.0 volts 3.5 to 6.5 volts
10 mA 7 to 13 mA
VB-722X
Normally Closed
1/2 to 1-1/4
(15 to 32)
large unpainted
d
7.5 volts 6 to 9 volts
15 mA 12 to 18 mA
1/2 to 2
(15 to 50)
large and small unpainted booster
(highest close off)
7.5 volts 6 to 9 volts
15 mA 12-18 mA
a
MA, MF, MP-541X and MP-55XX actuator positioning is independent of spring selected.
b
When using a TAC System 8000 controller or a 4 to 20 mA signal across a 500 ohm resistor to get the proper voltage.
c
The black spring used on a normally open valves may eliminate the need for positive positioning actuators.
d
The small unpainted spring may be added to provide additional close off.
TABLE 3. Select Actuator Type with correct Input Signal
having sufficient close-off for the application.
If selecting Component parts, Select .
Input Signal
Floating SPDT
2 to 10 Vdc or 4 to 20
mAdc
Valve Linkage
included with actuator included with actuator
Actuator Type
MF-23203, MF-233X3
MF-22203
a
a
Do not use MF-22203 models in chilled water applications.
MS-22353
Actuator Code 262, 265, 266 252, 25X 256
Factory Available
Valve Assemblies
b
b
There is no normal position for MF-2XXXX and MS-2XXXX valve assemblies. Consult price guide for factory available valve
assemblies.
Valve Body
P Code Size in.
ACTUATOR CLOSE-OFF PRESSURE RATING (psi)
c
c
Close-off rated for ANSI IV (.01%) with pressure at inlet (port A).
VF-7211-2XX-3-P
VS-7211-2XX-3-P
VB-7211-0-3-P
-1-2-3-4-25
1/2
250 130
-5-6
3/4
170 80
-7-8 1 80 40
-9
1-1/4
50 25
VF-7211-2XX-4-P
VS-7211-2XX-4-P
VB-7211-0-4-P
-1-2-3-4-25
1/2 [5/8]
d
d
5/8 O.D. SAE 45° fittings on VB-7212 valves.
250 130
-5-6
3/4
170 80
-7-8
1
80 40
-9
1-1/4
50 25
VF-7212-2XX-4-P
VS-7212-2XX-4-P
VB-7212-0-4-P -1-2-3-4-25
1/2 [5/8]
e
250 130
VA-1219-XXX-4-P
VF-1219-XXX-4-P
VK-1219-XXX-4-P
VS-1219-XXX-4-P
VB-121-0-4-P -1-2-3
1/2 [5/8]
e
125 100
Valve Linkage