Psi drop cold weather calculator
#Psi drop cold weather calculator code#
These values are based on the International Plumbing Code Water Supply Fixture Unit table. This system assigns an arbitrary value called a WSFU to each fixture in a building, based on the amount of water required and the frequency of use.įor example, a water closet (tank) is assigned a WSFU of 2.2 fixture units (FU) while a sink (lavatory) is assigned 0.7 FU. Water Supply Fixture Units (WSFU) is the standard method for estimating the water demand for a building. Prior to sizing a domestic water system and determining pipe sizes it is important to understand the concept of fixture units. This design guide focuses on the domestic water piping, plumbing fixtures, valves, booster pumps and other miscellaneous design issues related to the design of domestic cold water systems. Hot water is not including in this design guide. This design guide focuses on domestic water systems, primarily cold water. Plumbing systems include domestic water (cold and hot), sanitary sewer and vent, storm drain, special waste like grease and special systems (oxygen, fuel-gas, vacuum, nitrogen). Just be sure to search through your jurisdiction for any adaptations. This design guide will focus on the two most applicable codes, UPC and IPC. Each of these jurisdictions will tell you which code to follow, whether it is IPC, UPC or UFC and each of the jurisdictions may have adapted the code to fit their specific location’s needs. There are many different jurisdictions like federal, state, city and county. If you do a job for a state government property, then that state has jurisdiction and you need to check with the jurisdiction for the applicable code. This jurisdiction then determines that all plumbing designs must follow UFC 3-420-01 Plumbing Systems. For example, a job may be on a federal base, which means the federal government has jurisdiction. Each plumbing design will follow under a certain jurisdiction, which is the governing power that makes the legal determinations and interpretations of the code. The most common plumbing codes are the (1) International Plumbing Code or IPC, (2) Uniform Plumbing Code or UPC and (3) Unified Facilities Criteria Plumbing Systems or UFC 3-420-01 Plumbing Systems. The design of a plumbing system is greatly influenced by your applicable codes. Although these products can be used for industrial type systems, the intricacies of industrial type plumbing fixtures make it very difficult and it is not recommended that you use this calculator industrial purposes. This design guide book and calculator was created for the design of primarily commercial and residential domestic water systems.
#Psi drop cold weather calculator pro#
In no event will Engineering Pro Guides be liable for any incidental, indirect, consequential, punitive or special damages of any kind, or any other damages whatsoever, including, without limitation, those resulting from loss of profit, loss of contracts, loss of reputation, goodwill, data, information, income, anticipated savings or business relationships, whether or not Engineering Pro Guides has been advised of the possibility of such damage, arising out of or in connection with the use of this document/software or any referenced documents and/or websites. This version is not guaranteed and is not included with the purchase of this product. However, there will be another version provided in International System of Units (SI). The primary units that are used in this calculator and guide are the United States Customary System Units (USCS). This figure will be used to exemplify how a domestic water system is sized.
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The domestic water system includes above-ground and below-ground piping, valves, fittings, ancillary equipment and the various plumbing fixtures that use the potable water.įigure 1: This figure shows an example of a domestic water distribution system (only cold water) for a commercial kitchen. It includes the connection to the water supply, whether it is an underground central city, county, state or federal distribution system or a private well. A domestic water system describes the indoor and outdoor potable water distribution system.