WebJan 12, 2012 · NFPA 20 will let you go to 140% of the pump rating so 1500gpm will work. Some insurance companies will limit the pump to a max of 100-120% so check with the carrier. Also make sure the max pressure is 175 psi at pump churn.PRV are not permitted by NFPA 20 to reduce the pressure below 175psi. The 2000 gpm pump may give you a …

Sprinkler Density Calculator - Washington State University

WebAug 10, 2024 · All things being equal as to sprinkler layout, assume the following (perfect square spacing, no over discharge): -√1000 = 31.6'x31.6' (square room) -1000 sq ft/130 sq ft (the OH area) = ~7.3 sprinkler - Round to 8 -1000/8 = 125 sq. ft (11.18'x11.18'). or 25GPM required per sprinkler 8x25=400GPM WebJan 23, 2009 · 7 PSI is the bare minimum for standard spray sprinklers. If you are in OH2 and covering 12'x10', the minimum flow is 24 gpm. With a K5.6 sprinkler, you will be looking at 18.4 PSI as a minimum EHP just to get the req'd density. Without knowing more, you may be looking at some type of ex cov sprinkler with a specific pressure req'd for the … link to file in email

Maximum & Minimum Sprinkler Distances: Standard Spray Fire

The density/area method can be generally defined as a given amount of water (sprinkler discharge rate) over a specified area. This given amount of water is known as the design density, which is intended to provide cooling and wet adjacent surfaces with the goal of controlling an unintended fire until it can … See more When calculating the water demand needed for the system it is imperative that the correct location on the sprinkler system be chosen as the remote area. Although most fire sprinkler system calculations are done … See more The steps in identifying the remote area involve determining the area (square footage or square meters) from the design criteria, applying the … See more Even when utilizing computer software, engineers and designers need to select these sprinklers correctly to ensure they accurately provide … See more WebArea x Density = Quantity. Therefore if we have a fire sprinkler head which is covering 8m2 and we require 12.5 mm/min. 8m 2 x 12.5 mm/min = 100 Litres/min. This would be the … WebFeb 21, 2024 · If I am reviewing a fire sprinkler plan and let say these are the design parameters used: Design area: 1500 sqft Density: .10 K-Factor: 5.6 Coverage per sprinkler: 200 sqft In my opinion, all fire sprinkler heads located in the design area should provide a minimum of 20 gpm at 12.75 psi. hours of operation stickers