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&SW <br />0,8751' <br />(I0) 0.750" <br />0.12.5" <br />WALL <br />(war <br />NvA11 <br />SA" <br />0,07fr <br />WALL <br />3/8" 1" <br />OSOIY' o.,360" Tigr t(OD) <br />0.62.5" <br />(00) <br />0.070" <br />Mt. <br />1/2" <br />0.875* 0,681" <br />(001 (10) <br />‘0,097" <br />3/W8 <br />3/6/2018 PEX tubing technical specifications and general installation practices <br />800-818-3201 <br />Sign In I Check Order Status Contact Us <br />FREE SHIPPING <br />ON ONDSRS OVEN $99 Enter Part# or keyword <br />PEX SUPPLIES HEATING SUPPLIES PLUMBING SUPPLIES PS VALVES FITTINGS V.VAC a IACI BRANDS <br />Home PEX Tubing Technical Specifications and General Installation Recommendations <br />PEX Tubing Technical Specifications and General Installation Recommendations <br />Since at PEX tubing used in the US is manufactured to the same ASTM and dimensional (SDR) standards, these specifications are universal. <br />Manufacturing tolerances and other details can be found in manufacturers manuals. <br />Dimensional data and specifications <br />PEX Tubing size <br />(CTS/Nominal) <br />Outside Diameter <br />(OD) Minimum wall thicknessi <br />1 i Inside Diameter <br />i (ID) Volume gal/100ft Weight lbs/100ft <br />3/8" 0.500' 0.070" 0.360" 1 0.50 4.50 <br />1/2" 0.625" 0.070" I <br />I0.485" 0.92 5.80 <br />5/8" 0.750" 0.083" ] 0.584" 1.34 838 <br />3/4" 0.875" 0.097" 10.681" 1.83 <br />..../ <br />11.00 <br />1" 1.125" <br />n. no r .e -rivt.,....,..,--...... r..,...___,_. <br />0.125" <br />. <br />0.875" 3.03 17,06 <br />'Numbers are argurnelmaha <br />and non-b,arner PEX, i'irc)ne, owe is c man a ring lolerances and may vary by brand. Same data applies both M oxygen barrier <br />Notes: <br />PEX tubing sizes are denoted by CIS (copper tubing size), not OD (Outside Diameter) or ID (Inside Diameter). <br />OD of PEX, copper and OPVC pipe with the same size (CTS) is the same. This is why push fittings can be used with all of these pipes <br />PEX made to US standards must comply with a SDR-9 (Standard Dimension Ratio), which is the ratio of OD (Outside Diameter) to pipe wall thickness <br />(9:4 Exceptions are nominal sizes 1/2" and below. <br />Pressure ratings, testing and pressure drop <br />PEX Tubing <br />Pressure Ratings Pressure testing -Hydronic & Radiant Heating Pressure testing - Hot & Cold Water Plumbing <br />200°F at 80 psi <br />180°F at 100 psi <br />74"F at 160 psi <br />3 times the maximum working pressure or a minimum of 40 <br />psi, but no greater than 100 psi. <br />Duration: 30 minutes minimum, 2 hours recommended <br />1,5 times the maximum working pressure but no greater than pipe's <br />pressure rating at given temperature <br />Duration: 30 minutes minimum, 2 hours recommended <br />Notes: <br />1. Maximum working pressure indicates highest anticipated operating pressure. <br />2 Pressure testing requirements and procedures should be in compliance with local codes and PEX manufacturer's instructions. <br />Air pressure testing is recommended over water for practical reasons and due to difficulties arising from water freezing during winter months. <br />Since PEX is a flexible pipe, it will expand somewhat (especially PEX-a) during the initial pressurizing of the system, causing a drop in pressure reading. <br />Some manufacturers recommend 'conditioning" of the system, or allowing the PEX system to stay pressurized for about 30 minutes prior to taking a <br />reading. <br />For concrete slabs, pressure is maintained at 30 psi during the pour and is monitored to assure integrity of the system. <br />file:///CdUsers/FatimalDesktop/pex.htmi <br />1/3