Required flow and residual pressure demand at the base of the riser. %%EOF Subscribe today. The Requirement – As with other valves, the test connection valve requires a sign to identify it as a test connection. In summary, the installation of signs is often ignored or thought of as not important. [25.5.1]. 582 0 obj <> endobj Additionally, NFPA 25 requires that many of the required signs be checked during the required inspections and if missing, they need to be replaced. This requirement is like the NFPA 13 requirement. Multi-cycle activation may be integrated, and sprinkler piping may be connected to circulating, closed-loop systems used for heating or cooling. Incorrect installation can lead to system failure and/or penalties, including fines from state and municipal authorities. Volume of antifreeze solution used in the system. However, contents expected to release moderate heat should not be stacked taller than 12 feet, while stockpiles of contents with a high heat release should not exceed a height of 8 feet. On the control valve for the system, a placard is also required to be mounted on the control valve for the system to indicate the: The Rationale – Beckman said this sign is important for a couple of reasons. General NFPA 13 Definitions and Requirements, The entire third chapter of NFPA 13 is dedicated to defining key terms, the most important of which is its definition of an, , described as: “a fire suppression or control device that operates automatically when its heat-activated element is heated to its thermal rating or above, allowing water to discharge over a specified area.”, Hazard Levels for Determining Occupancy Ratings. As with certain other signs, it must be "a permanently marked weather-proof metal or rigid plastic sign, secured with corrosion-resistant wire, chain, or other acceptable means"[25.6.2]. (4) Presence of high-piled and/or rack storage Each flow rate depends on water pressure.

These tests are performed for a variety of reasons: ensuring that the water flow alarm works, testing the opening of a dry-pipe or pre-action valve, or assessing how long it takes for water to arrive at an average sprinkler head at system working pressure. For the best experience on our site, be sure to turn on Javascript in your browser. The Requirement – The NFPA 13 doesn’t indicate the type of sign required for auxiliary drains, just that it must indicate the number and locations of each drain. Using easily understood uniform symbols on labels and signs provides consistency, eliminates confusion, and improves communication. Section 6.4.5 has a requirement for signage for the fire department connections. buildings display low overall combustibility but encompass a moderate amount of combustible materials. hbspt.cta._relativeUrls=true;hbspt.cta.load(1973249, 'cf5f04ea-68ca-4b85-b16f-cb89039244b7', {}); Topics: information regarding your use of this website that is generated by the Cookie (including your Does Your Fire Sprinkler System Have All the Required Signs?

The type of system the connection serves (the service design), If a fire department connection serves only a portion of the building, the sign should indicate what area(s) it serves, The required pressure for any system that requires 150 pounds per square inch (PSI) or more (the system demand pressure), Discharge densities over the design area(s), Required flow and residual pressure demand at the base of the riser, Maximum permitted storage height and configuration, Name and location of the facility protected, Presence of flammable/combustible liquids, Presence of high-piled and/or rack storage, Location of auxiliary drains and low point drains on dry pipe and preaction systems, Indication of presence and location of antifreeze or other auxiliary systems, Name of installing contractor or designer, Original results of main drain flow test and the dry pipe and double interlock preaction valve test, Sprinkler Identification Number (SIN) or the manufacturer, model, orifice, deflector type, thermal sensitivity, and pressure rating for each type of sprinkler installed, A general description and the quantity of each type of sprinkler to be contained in the cabinet.

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