Brochure
Valve Selection Guide for Three-Way Valves
10
© Copyright 2006 TAC. All Rights Reserved. F-27414-1
HOW TO USE TABLE:
1. Select the vertical column that has a valve body series that meets your requirements.
2. Select the horizontal column with correct type of actuator (Pneumatic or Electric/Electronic) and correct input signal for 
Electric/Electronic actuator.
3. The intersection of the two columns shows the pages for complete selection and ordering information.
Valve Application Chilled or Hot Water 300°F Maximum
Chilled or Hot 
Water 300°F 
Maximum
Chilled or Hot 
Water 300°F 
Maximum
Chilled or Hot 
Water 300°F 
Maximum
Valve Body Type
Globe
Flared Flared Screwed Screwed Union Sweat Flanged Screwed Flanged
VB-7312-0-4-P VB-324-0-5-P VB-7313-0-4-P VB-9313-0-4-P VB-7314-0-4-P VB-9313-0-5-P VB-7323-0-4-P VB-9323-0-5-P
Static Pressure Rating
250 psig 250 psig 250 psig 250 psig 250 psig 125 psig 250 psig 125 psig
Sizes Available
5/8 in. O.D., 
SAE 45°
1/2 in. O.D. 
Tube
1/2 to 2 in. 2-1/2 & 3 in. 1/2 to 2 in. 2-1/2 to 6 in. 1/2 to 2 in. 2-1/2 to 6 in.
Range of Cv’s 
Available
2.2 to 4.4 1.5 2.2 to 41 67 to 91 2.2 to 41 74 to 390 4.4 to 40 75 to 275
Flow Type
Mixing
3-Way Mixing, 
Top Port 
Normally 
Closed, Bottom 
Port Normally 
Open
Mixing Mixing Mixing Mixing Diverting Diverting
PNEUMATIC ACTUATORS
a
a 
Optional inputs available to pneumatic are: SPST, SPDT, slidewire (Series 90), TAC System 8000 (voltage input 2 to 15 Vdc), current input 4 to 20 mA.
These options are shown with the specific valve selected.
Pages
 70 to 76  70 to 76  77 to 82  77 to 82  77 to 82  77 to 82  77 to 82  77 to 82
ELECTRIC/ ELECTRONIC ACTUATOR
Input Signals
Pages
Two-Position (SPST) 
(Spring Return)
  70 to  76   70 to  76 83 to  103 87 to  96 83 to  103 87 to  96 83 to  103 87 to  96
Two-Position (SPDT 
Snap Acting) (Non-
Spring Return)
——
87 to  103 87 to  96 87 to  103 87 to  96 87 to  103 87 to  96
TAC System 8000,
Voltage Input 2 to 15 
Vdc
  70 to  76   70 to  76 83 to  103 87 to  96 83 to  96 87 to  96 83 to  96 87 to  96
Slidewire (Series 90)
——
87 to  103 87 to  96 87 to  103 87 to  96 87 to  103 87 to  96
Current Input
4 to 20 mA etc.
——
Floating Control, 
SPDT or Two SPST, 
Direct Digital Control
——
Pneumatic to Electric
——
Valve 
Selecti
on 
Guide 
for
Three-
Way 
Valves










