User Guide
Table Of Contents
- Application
- Features
- Applicable Literature
- SPECIFICATIONS
- VALVE SIZING AND SELECTION
- Water
- Cavitation Limitations on Valve Pressure Drop
- Additional Valve Sizing Information
- 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...
- Table-6 Normal Thread Engagement Between Male Pipe Thread and Valve Body.
- Figure-3 Normal Thread Engagement.
- Figure-4 Installation of Screwed End Valves.
- 1. All parts should be clean to assure the best results.
- 2. The pipe with the companion flanges installed should be properly supported and aligned. Be sure the companion flange is flush with the face of the valve body flange and lined up squarely.
- 3. Use a gasket material (not provided) that is recommended for the medium being handled.
- 4. See Figure-5 for flange and flange bolt details. Figure-5 also shows the proper way a flanged valve should be mounted.
- Figure-5 Installation of Flanged End Valves.
- TYPICAL PIPING
- CHECKOUT
- 1. Make sure the valve stem operates freely before installing the valve linkage and the actuator.
- 2. If the stem does not operate freely, 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.
- 1. Make sure the valve stem operates freely before installing the valve linkage and the actuator.
- MAINTENANCE
- Water System Maintenance
- DIMENSIONAL DATA
F-24393-3 © Copyright 2010 Schneider Electric All Rights Reserved. 7
INSTALLATION
Inspection
Inspect the package for damage. If damaged, notify the appropriate carrier immediately.
If undamaged, open the package and inspect the device for obvious damage. Return
damaged products.
Requirements
• Tools (not provided): Pipe wrenches
• Training: Installer must be a qualified, experienced technician
• Appropriate accessories
Caution:
• Install the valve with the flow in the direction of the flow arrows (“A” and “B” ports are inlets
and “AB” port is the outlet).
• Do not exceed the ratings of the device.
• Avoid locations where excessive moisture, corrosive fumes, or vibration are present.
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 selecting a location, allow sufficient room for valve
linkage, actuator, and other accessories and for service of the product.
2. The preferred mounting position for the valve is with the valve stem vertical above the
valve body. Avoid mounting the valve so that the valve stem is below horizontal.
3. The valves must be piped with two inlets (“A” and “B” ports) and one outlet (“AB” port).
Screwed Valve Bodies
The VB-9313-0-4-P series screwed valve bodies conform to American Standard Taper Pipe
Threads (NPT).
1. Apply pipe dope sparingly to all but the last two threads of a properly threaded, reamed,
and cleaned pipe. Make sure that pipe chips, scale, etc. do not get into the pipe since this
material may lodge in the valve seat and prevent proper closing and opening of the valve.
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. See
Table-6 and Figure-3 for the normal engagement length of the threads.
Figure-4 shows a means of tightening the pipe so that the valve is not twisted or
crushed.
Table-6 Normal Thread Engagement Between Male Pipe Thread and Valve Body.
Valve Size Inches
(NPT)
Normal Engagement
Valve Size Inches
(NPT)
Normal Engagement
2-1/2" 15/16" 3" 1"
Figure-3 Normal Thread Engagement.
Right Wrong
Pipe threads too long.
Pipe jims seat.