User Guide
Table Of Contents
- Application
- VB-7313 series three-way mixing valves control hot or chilled water in heating or air conditioning systems. These valves must be...
- Danger: Do not use for combustible gas applications. The VB-7313 series valve packings are not rated for combustible gas applications, and if used in these applications, gas leaks and explosions could result.
- Features
- Applicable Literature
- . TAC Valve Products Catalog, F-27414
- . TAC Electric-Electronic Products Catalog, F-27382
- . TAC Pneumatic Products Catalog, F-27383
- . CA-28 Control Valve Sizing, F-13755
- . Valve Selection Chart for Water, F-11080
- . EN-205 Water System Guidelines, F-26080
- . Vx-7xxx-8xx, Vx-7xxx-59x, Vx-9xxx-8xx, Vx-9xxx-59x Globe Valve Assemblies with TAC DuraDrive Linear Series Actuators, F-26752
- SPECIFICATIONS
- VALVE SIZING AND SELECTION
- INSTALLATION
- Inspection
- Requirements
- Mounting
- 1. The valve should be mounted in a weather-protected area in a location that is within the ambient limits of the actuator. When...
- 1. Apply pipe dope sparingly to all but the last two threads of a properly threaded, reamed, and cleaned pipe. Make sure that pi...
- 2. Start the joint by hand screwing the pipe into the valve. If the thread engagement feels “right,” turn the pipe by hand as far as it will go.
- 3. Use a pipe wrench to fully tighten the valve to the pipe. Do not over tighten or strip threads. SeeTable-6 and Figure-3 for t...
- Table-6 Normal Thread Engagement Between Male Pipe Thread and Valve Body.
- Figure-3 Normal Thread Engagement.
- Figure-4 Installation of Screwed End Valves.
- TYPICAL PIPING
- CHECKOUT
- 1. Make sure the valve stem operates smoothly before installing the valve linkage and the actuator.
- 2. If the stem does not operate smoothly, it may indicate that the valve was twisted or crushed during installation or that the stem was bent by rough handling. These conditions may require that the valve be replaced.
- 3. After the piping is under pressure, check the valve body and the connections for leaks.
- 4. After the valve linkage and the actuator are installed, check their operation.
- a. Drive the actuator and run the valve to the stem down position. Make sure the linkage and valve stem move freely. At the stem down position, the valve should shut off the “B” port.
- b. Drive the actuator and valve to the stem up position. Again, the valve stem and linkage should operate smoothly. At the stem up position, the valve should shut off the “A” port.
- MAINTENANCE
- 1. Make sure the valve stem operates smoothly before installing the valve linkage and the actuator.
- DIMENSIONAL DATA
2 © Copyright 2007 TAC All Rights Reserved. F-26074-1
SPECIFICATIONS
Table-1 Specifications/Models.
Close-off Pressure Rating
The close-off pressure rating is dependent on the size of the valve, valve linkage, and
actuator. Consult the TAC Valve Products Catalog, F-27414, for close-off ratings.
Specifications
Valve Body Series
VB-7313-0-4-P
Service Chilled or Hot Water
Flow Characteristics (Figure-1) Mixing
Sizes 1/2" to 2"
Type of End Fitting NPT
Valve
Materials
Body Bronze
Seat Bronze
Stem Stainless Steel
Plug Brass
Packing Spring-loaded TFE
Disc None
ANSI Pressure Class (Figure-2) 250 (up to 400 psig below 150°F)
a
Allowable Control Media Temperature 20 to 281°F (-7 to 138°C)
Allowable Differential Pressure for Water
b
35 psi (241 kPa) Max. for Normal Life
(refer to “Cavitation Limitations on Valve
Pressure Drop” on page 6)
Valve Size C
v
Rating k
vs
Rating
c
Complete Valve Body Part Number
1/2"
2.2 1.9 VB-7313-0-4-2
4.4 3.8 VB-7313-0-4-4
3/4" 7.5 6.5 VB-7313-0-4-6
1" 14 12 VB-7313-0-4-8
1-1/4" 20 17 VB-7313-0-4-9
1-1/2" 28 24 VB-7313-0-4-10
2" 41 35 VB-7313-0-4-11
a
Do not apply above pressure rating to piping system.
b
Maximum recommended differential pressure. Do not exceed recommended differential pressure (pressure
drop) or integrity of parts may be affected. Exceeding maximum recommended differential pressure voids
product warranty.
c
k
vs
= m
3
/h (ΔP = 100 kPa) C
v
= k
vs
x 1.156