SIGMA is fully stocked with a complete range of Vertical Indicator Posts and Wall Posts. These posts are designed to operate non-rising stem (inside screw) gate valves, which are used to control the underground water supply to various systems. These are ideal for use in automatic sprinklers, water spray deluges, foam water deluges, and standpipe fire protection systems.
The Vertical indicator posts permit the operation of underground valves while providing an above surface visual signal to show whether the valve is open or shut. In addition, it delivers a means to lock the valves in a particular position. SIGMA’s indicator posts enable valve operation from outside of the protected property, and therefore allow immediate response in an emergency situation.
Wall Indicator Posts perform the same functions in applications in which the valve is installed behind a wall.
These indicator posts will accommodate 4-14 inch post indicator valves requiring 10-43 turns to open; they are compatible with valves that are listed or approved for fire protection system service. SIGMA’s indicator posts are provided “standard order” for use with left hand opening valves.
For information on this and other SIGMA Piping, Plumbing, Fire Protection, and Industrial products, please contact sppsales@sigmaco.com.