China UL FM Vertical Type Indicator Post

UL FM Indicator Post is designed for use with NRS gate valves.
Vertical Type Indicators Post are UL Listed & FM Approved. They are used to identify the position of underground post Indicator valves, they are recommended for use fire protection piping systems. Each post indicator unit consists of four components, the post, the The telescopic pipe, base and Stem. It is adjustable to accommodate varying bury depths.