Post Indicator
A post indicator is a stem extension used to operate a fire valve that is buried or behind a wall from above, with a window showing whether the valve is OPEN or SHUT. The valve position is read without going down into a pit.
The store has two models: vertical (ground) and horizontal (wall) types. They are used on hydrant network sectional valves, the main fire valve at building entries and together with buried NRS valves.
Main Applications
- Underground hydrant network sectional valves
- Main fire valve at building entry
- Control valves behind walls
- Fire water tank outlet valves
Technical Data
| Type | Vertical (ground) and horizontal (wall) post indicator (product range) |
|---|---|
| Indicator | OPEN / SHUT position window |
| Compatible valve | Non-rising stem (NRS) fire valve |
| Operation | Lever or key (by model) |
| Length | Adjusted to burial depth (by model) |
| Locking | Lockable handle (by model) |
| Supervision | Tamper switch can be fitted (by model) |
| Material | By model |
Material Options
| Part | Vertical type | Wall type |
|---|---|---|
| Body | By model | By model |
| Stem extension | By burial depth | By wall thickness |
| Indicator | OPEN / SHUT window | OPEN / SHUT window |
| Operation | Handle (by model) | Handle (by model) |
Which material? No reliable manufacturer datasheet was found for the post indicator; models are taken from store products. Length is chosen by the valve burial depth and must be stated with the order.
Advantages
Remote Operation
- Valve opened and closed without entering a pit
Clear Position Reading
- Read through the OPEN / SHUT window
Secure Locking
- Lockable against unauthorised closure (by model)
Two Mounting Types
- Ground and wall installation
Construction and Design Features
- Extension stem connected to the valve stem
- OPEN / SHUT window showing the position
- Operating handle
- Ground or wall mounting body
Send the valve burial depth or wall thickness; we will confirm a post indicator of the right length.
How to Choose?
- Choose the mounting typeUse vertical in open areas and wall type on building facades.
- Measure the lengthFind the distance between grade and the valve stem.
- Check valve compatibilityConfirm the stem end fits the NRS valve.
- Plan supervisionAdd a tamper switch if required.
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