Likely a local requirement. NFPA 24, 6.3 6.3 Post Indicator Valves. 6.3.1 Where post indicator valves are used, they shall be set so that the top of each post is 32 in. to 40 in. (800 mm to 1000 mm) above the final grade. 6.3.2 Where post indicator valves are used, they shall be protected against mechanical damage where needed.
6.2.9 All connections to private fire service mains for fire protection systems shall be arranged in accordance with one of the following so that they can be isolated: (1)* A post indicator valve installed not less than 40 ft (12 m) from the building (a) For buildings less than 40 ft (12 m) in height, a post indicator valve shall be permitted to be installed closer than 40 ft (12 m) but at least as far from the building as the height of the wall facing the post indicator valve. (b) Post indicating valves shall be allowed to be closer than 40 ft (12 m) to the building when a property line or other physical barriers make it impossible to have a post indicating valve 40 ft (12 m) away. (c) Post indicating valves shall be allowed to be closer than 40 ft (12 m) to the building when building driveway or fire access roadways or other building traffic make it impractical to be 40 ft (12 m). (2) A wall post indicator valve on risers located within the building, either a nonrising stem gate valve with a wall post indicator or a listed butterfly valve with an indicating handle extending out through the building wall. (3) An indicating valve in a pit, installed in accordance with Section 6.4 (4)* A backflow preventer with at least one indicating valve not less than 40 ft (12 m) from the building (a) For buildings less than 40 ft (12 m) in height, a backflow preventer with at least one indicating valve shall be permitted to be installed closer than 40 ft (12 m) but at least as far from the building as the height of the wall facing the backflow preventer. (b) Backflow preventer valves shall be allowed to be closer than 40 ft (12 m) to the building when a property line or other physical barriers make it impossible to have a backflow preventer valve 40 ft (12 m) away. (c) Backflow preventer valves shall be allowed to be closer than 40 ft (12 m) to the building when building driveway or fire access roadways or other building traffic make it impractical to be 40 ft (12 m). (5)* A nonindicating valve, such as an underground nonrising stem gate valve with an approved roadway box, complete with T-wrench, located not less than 40 ft (12 m) from the building (a) For buildings less than 40 ft (12 m) in height, a nonindicating valve, such as an underground nonrising stem gate valve with an approved roadway box, complete with T-wrench, shall be permitted to be installed closer than 40 ft (12 m) but at least as far from the building as the height of the wall facing the nonindicating valve. (b) A nonindicating valve, such as an underground nonrising stem gate valve with an approved roadway box complete with T-wrench shall be allowed to be closer than 40 ft (12 m) to the building when a property line or other physical barriers make it impossible to have the valve 40 ft (12 m) away. (6) Indicating control valves installed in a fire-rated room accessible from the exterior (7) Indicating control valves in a fire-rated stair enclosure accessible from the exterior as permitted by the AHJ (8) Any other valve type or location as permitted by the AHJ. I hope this helps. Tom Wellen Procon Consulting On Mon, Oct 20, 2025 at 10:55 AM <[email protected]> wrote: > We are trying to remove PIVs, and install a main control valves at risers. > AHJ is saying we must have a PIV. Also, we have BFPs before the PIVs. Can > anyone help me find in NFPA 13 or 24 the section about PIVs? > > _________________________________________________________ > SprinklerForum mailing list: > https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org > To unsubscribe send an email to > [email protected]
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