VVNV - Level Sight Glass Valve
The VVNV level sight glass valves were developed for a broad range of pressure and temperature requirements in level indication assemblies.
Technical Characteristics
- Needle-type stem obturator.
- Safety sealing device for excess flow caused by glass breakage.
- Handwheel or counterweight actuation.
- Connections for relief valve or drain valve mounting.
Materials and Construction
Available construction materials include carbon steel, stainless steel, and brass according to the requested configuration.
Request a Quote
Contact Contromag with the vessel service, connection requirement, actuation preference, and sight glass arrangement.
Brazilian Manufacturing
Quality Assurance
Technical Support
Technical Information
Catalog-backed product facts for engineering, procurement, and application review.
Product Overview
- Model
- VNNV
- Category
- Level sight glass valve
- Industries
- Marine, Industrial refrigeration, Petrochemical, Utilities
Applications and Media
- Typical applications
- Isolation valve for level sight glass bodies, Industrial process level monitoring, Petrochemical process level monitoring, Utility systems level monitoring, Marine level monitoring, Refrigeration level monitoring
- Compatible media
- Broad range of liquids in critical and moderate industrial processes
- Customization options
- Handwheel actuation, Counterweight lever actuation, Threaded vessel connections, Flanged vessel connections
Technical Characteristics
- Operation type
- Manual handwheel actuation, Counterweight lever actuation
- Connection types
- Vessel connections 1/2 inch or 3/4 inch BSPM/NPTM, Flanged ASME B16.5 DN 1/2 inch, 3/4 inch, or 1 inch
- Mounting orientation
- Mounted on either side of the level sight glass body
- Installation constraints
- Designed to isolate the level sight glass from the vessel containing liquid, Includes ball closure for rapid shutoff to help prevent liquid loss if sight glass breaks
Construction and Options
- Materials
- Different materials available according to catalog, Carbon steel, Stainless steel, Brass
Documentation and Quote Context
- Catalog revision
- 08-2016
- Quote process
- Contact Contromag with vessel service, connection requirement, actuation preference, and sight glass arrangement.
