Where Is The Main Control Valve Located?

Every sprinkler system should be equipped with a main control valve located

between the: Source of water supply and the sprinkler system.

Where is the main control valve for an automatic sprinkler system located?

Locate the main shutoff valve on your irrigation system. It is

between the main water supply to your home and the sprinkler controller

. Alternately, the main shutoff is located outdoors near a faucet bib. The main valve may be in a box in this area to protect it from the elements.

What valve is located outside of the building between the water supply and the water supply main on the riser?

Control valves: used to turn off the water supply to the system, located between the source of water supply and the sprinkler system, usually located immediately under the sprinkler alarm valve,

the dry-pipe or deluge valve

, or outside the building.

Where are post indicator valves normally located?

In a standard PIV, the post body is mounted

on top of the fire sprinkler/standpipe system’s water supply pipe

. Sometimes this means the bottom of the PIV is buried under the ground, while other times, it may have a flange that is bolted down to a concrete platform that stores the supply pipe.

What is a fire sprinkler control valve?

Control Valves—What Are They? Control valves

control the flow of water in an automatic fire sprinkler system

. Therefore, it is critical they remain open to allow water flow to the sprinklers. According to the NFPA, closed valves are the main cause of sprinkler system failure.

How do I find my sprinkler master valve?

It is connected to the “master” or “pump” connection in your controller. For Generation 1 controllers, this is the blue terminal in the wall mount. For Generation 2 controllers, find

the terminal marked “M”

. In the image below, the master valve is in the small circular box to the left of the main sprinkler box.

How do you lubricate a post indicator valve?

Lubricate indicator post with

oil via screw post

at top of post. Opening or closing PIVs should take the same number of turns (±1⁄2). Ten inch valves will take ~ 31 to 34 turns.

How much does a post indicator valve cost?

What does a post indicator valve look like?

These systems usually have a lockable actuator which looks like a

red metal steering wheel

or a wrench/handle on top of a post. It also has a glass or plastic window, which indicates whether the valve is open or shut.

Is a post indicator valve required?

NFPA 24 regulates system requirements between water supply mains and service entries into a building. … Starting with the 2010 edition, however, NFPA 24 stopped mandating the exclusive use of post indicator valves for isolating a building’s fire protection systems. Instead, the 2019 edition of NFPA 24 (6.2.

What is a post indicator valve for?

Installed in the main water line serving a building, the Post Indicator Valve (PIV) is

a valve used to control the water supply to the fire sprinkler system

. … The PIV has a display that shows whether water is being pumped into the system (“OPEN”) or not (“CLOSED”).

Why is fire sprinkler water black?

By far the most common corrosion reaction found in fire sprinkler systems is

oxidation

. Oxygen trapped inside the system dissolves into water and reacts with the internal surface of the black or galvanized steel piping.

How can you tell if a gate valve is open or closed?

As the operator rotates the handle counterclockwise, the stem lifts out of the handle, opening the gate. A clockwise rotation of the gate moves the stem back into the gate and closes the valve.

When the stem is no longer protruding beyond the handle, the gate valve is closed

.

How do you turn off an indoor sprinkler system?

Get a phone and the number of your sprinkler system’s installation company. The company will tell you the location of the water valve that controls the sprinkler system in your home or business. Find that

valve and turn it clockwise until it

the sprinkler system turns off.