What is a post pointer valve (piv) and where they are required

What is a post pointer valve (piv) and where they are required?

Fast authorization to your altered fire sprinkler or wet standpipe design’s main water control valve can be key in a crisis. In any case, in the event that your framework’s significant control valve is found underground, speedy access, visual, etc. is mind boggling without a post pointer valve (PIV). In the event that you have an underground essential control valve, you could need to consider adding a PIV to your design.

Keep on analyzing to dive further into what post pointer valves are, the means by which they work, why you could require one for your modified fire sprinkler or standpipe framework, and what you can expect while introducing, uprooting, or remaining mindful of them.

What is a PIV?

So, post pointer valves (PIVs) are solid, over the ground authorization and head valves utilized for redid sprinkler designs and wet standpipe frameworks whose fundamental water supply valves are seen as underground. With underground fundamental valves, it is both hard to tell whether they are in an open or shut position and testing to access in a rush. 

The PIV is basically a line or post, ascending out of the beginning is connected with the underground head. It gives a method for quick access and control to the water supply control valve so that water can rapidly be given or turned down as required, and which comparably has a marker that shows whether the valve is open or closed.

How Do PIVs Function?

The systems at work in a post pointer valve are truly straight forward. Knowing the fundamental pieces of a customary PIV, in any case, will make for better comprehension of how the parts take part to work an underground fundamental water valve. The five fundamental parts are,

Entrance Valve

The hidden four fragments recorded are the outside parts that are perceptible over the ground. The fifth part, the entryway valve (by and large called the working shaft), is the inside instrument. In a standard PIV, the post body is mounted on top of the fire sprinkler/standpipe design’s water supply pipe. A part of the time this induces the lower a piece of the PIV is gained under the headway, while different times, it could have a spine that is flooded down to a huge stage that stores the stock line. Point of fact, the post body emerges starting from the earliest stage.

  • Inside the post body, the doorway valve accomplices with the underground water supply line’s turned down valve. The entrance valve is then constrained by the wrench actuator/handle, which is ostensibly of the post body.
  • The wrench is put away obviously of the post body and safeguarded in either the shut or exhaust situation with a lock or wire mark or the like to obstruct changing as well as surprising opening or shutting of the valve.
  • Right while support or crisis staff need to work the valve, they open the wrench actuator, kill it from the breaking point position, and put the wrench end on the working nut on top of the PIV and turn the nut, in this way turning the entryway valve inside to one or the other open or shut the water supply valve.

Visual marker window

A pointer sign with both “OPEN” and “SHUT” signs are joined to the entrance valve and are noticeable through the visual marker window. In the event that the PIV is set away in the shut position, “SHUT” will be conspicuous through the visual pointer window when in the resting position. Precisely when somebody utilizes the wrench to turn and open the entry valve, the marker sign will move to show “OPEN” through the window.

Where could PIVs Customarily Found sooner or later be?

PIVs might be set in either a cleared or a finished region and are usually near the local get-together of fire fighters connection (FDC). Rules are gotten up situated guarantee that their utilization isn’t annihilated by their area.

Sponsorship and Review Necessities

To keep your post marker valve in proficient working condition and up to code, there are support contemplations, as well as appraisal necessities as affirmed under,

  • Support to assist with keeping the PIV away from becoming gotten set up, it is recommended that it be cleaned once a month by putting it through an OPEN-CLOSE-OPEN cycle. 
  • NFPA codes expect that the valve be dealt with its full reach and sometime later got back to its unfilled situation something like one time every year.
  • Valves safeguarded by wire seals should be apparently investigated dependably. Valves safeguarded by locks and anchors should be clearly studied dependably. Valves protected by electrical change switches (which award oversight of the seal’s status) need basically be reviewed each quarter.
  • These standard visual evaluations are to guarantee that the valve has not been intentionally or inadvertently interfered with and that the basic water supply is given to the improvement the PIV is for.
  • Expecting you work with Koorsen Fire and Security, your master can assist with playing out these undertakings and affirmation that your PIV is in phenomenal working condition and up to code.

What’s on the horizon while introducing Fixing a PIV?

On the off chance that you are considering the expansion of a post marker valve, it is essential to be ready for the work it will take to introduce. Since PIVs go into the ground (as a rule), uncovering is as frequently as conceivable expected to get them related with the fire sprinkler construction’s underground control valve. Furthermore, whether you are hoping to supplant a past PIV or have to do fixes, departure could in any case be huge.


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