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
F-26074-1 © Copyright 2007 TAC All Rights Reserved. 3
Spring Return Position of Valve Assembly
For a valve assembly (valve, linkage, and actuator) to have a spring return position, the
actuator must be of the spring return type. See Table-2 for spring return position of valve
assemblies.
Table-2 Required Compatible Actuators/Linkages.
Flow Characteristics
Three-way mixing valves are designed so that the flow from either of the inlet ports to the
outlet is approximately linear, which means the total flow from the outlet is almost constant
over the stroke of the valve stem. See
Figure-1 for typical flow characteristics of VB-7313
series valve bodies.
Figure-1 Typical Flow Characteristics.
Actuator Series Required Valve Linkage Spring Return Position
a
M400A, M800A, M1500A AV-811 (M1500 only) None
MA51-710x, MF51-7103, MS51-7103 Included with Actuator Stem Up
MA51-720x, MF51-7203, MS51-7203 Included with Actuator Stem Up
MA-318, MA-418, MA-419 AV-391 Stem Up or Down
MA-5210, MA-5211, MA-5213 AV-7600-1
b
Stem Up
MC-351, MC-431, MC-4311, MC5-4311 AV-393 None
MF-5413, MF-5513 AV-7600-1 & AV-601 Stem Up
MF-22203, MF-22303, MF-22323
Included with Actuator None
MF-63103, MF-63123
MK-2690 AV-7400
Stem UpMK-4601, MK-4611, MK-4621 AV-401
MK-6601, MK-6611, MK-6621 AV-430
MM-400, MMR-400
AV-630 or
AV-630-10
None
MM-500, MMR-500 Stem Up or Down
MP-361, MP-461-600, MP-465, MP5-4651
AV-391
Stem Down
MP-371, MP-471-600, MP-475, MP5-4751 Stem Up
MP-381, MP-382, MP-481-600, MP-485,
MP-486, MP-4851, MP5-4851
AV-393 None
MP-5210, MP-5211, MP-5213 AV-7600-1
b
Stem UpMP-5410, MP-5411, MP-5413
AV-7600-1 & AV-601
MP-5513
MPR-5610, MPR-5611, MPR-5613
AV-7600-1 & AV-601 Stem Up
MPR-5713
MS-22353 Included w/Actuator None
a
Stem Up = Flow port “B” to port “AB”. Stem Down = Flow port “A” to port “AB.”
b
High ambient temperatures with high media temperatures in the valve may require the use of AV-601 in addition
to AV-7600. See General Instructions for AV-7600-1 (F-26235) and AV-601 (F-19069) for details.