@Aar dvar k Classe s PE X Re side ntia l Plumbing Insta lla tion
@ Aa rdva rk Cla sse s PEX Plumbing Systems PE X is a n inno va tive pro duc t tha t wa s de ve lo pe d in the 1960s to a ddre ss the pro b le ms a sso c ia te d with rig id plumb ing syste ms tha t use ma te ria ls like c o ppe r, ste e l, a nd CPVC. T he first re side ntia l PE X plumb ing pro duc ts we re intro duc e d in the e a rly 1970s. Sinc e the n, the PE X industry ha s c o ntinua lly ma de a dva nc e me nts. T o da y, PE X plumb ing syste m c o nsist o f PE X tub ing , b ra ss a nd po lyme r fitting s, c o ppe r c rimp ring s a nd sta inle ss ste e l c la mp syste ms, a nd a dditio na l PE X c o mpo ne nts use d to a sse mb le the se syste ms. Pa g e 2 o f 55
@ Aa rdva rk Cla sse s Applications and Advantages of PEX Systems Applic ations I n a dditio n to ho t a nd c o ld wa te r distrib utio n, so me a pplic a tio ns fo r PE X Syste ms inc lude : • Ra dia nt He a ting Syste ms • Sno w a nd I c e Me lt Syste ms • T urf Co nditio ning Syste ms • Munic ipa l Wa te r Se rvic e • Re ve rse Osmo sis Syste ms • De io nize d Wa te r Syste ms Advantage s of a PE X Syste m • E nviro nme nta lly So und • E a sy a nd Sa fe to I nsta ll • Re lia b le • Co st E ffe c tive Pa g e 3 o f 55
@ Aa rdva rk Cla sse s Applications and Advantages of PEX Systems Whe n insta lling a PE X plumb ing syste m, yo u must first c ho o se yo ur me tho d o f insta lla tio n. T his se c tio n o utline s the thre e mo st c o mmo n type s o f PE X plumb ing insta lla tio n me tho ds. I n o rde r to c ho o se the me tho d tha t b e st suits yo ur jo b site re q uire me nts, c o nside r the fa c to rs re le va nt to yo ur prio ritie s. System Performance Based on Factor Dependency F ac tor Optimal E le vate d T ypic al Pe r for manc e Pe r for manc e Pe r for manc e Minimize Pipe Used Conventional Multi-Port Tee Home Run Minimize Fittings and Joints Home Run Multi-Port Tee Conventional Sequential Flow Hot Conventional/ Multi-Port Tee Home Run Water Delivery Time Minimize Hot Water Wait Time Home Run Multi-Port Tee Conventional Single Fixture Pressure Conventional Home Run/Multi-Port Tee Pressure Stability with Home Run Multi-Port Tee Conventional Use of Multiple Fixtures Centralize Shut-off Valving Home Run Multi-Port Tee Conventional Joint Accessibility During Home Run Multi-Port Tee Conventional Installation Pa g e 4 o f 55
@ Aa rdva rk Cla sse s Insta lla tion Me thods Conve ntional Me thod – T r unk and Br anc h T he Co nve ntio na l o r T runk a nd Bra nc h Me tho d is the sa me me tho d use d in rig id plumb ing syste ms. Running PE X tub ing in the Co nve ntio na l Me tho d re q uire s the insta lla tio n o f a ma in trunk line whic h b ra nc he s to spe c ific o utle ts. T his me tho d do e s re duc e the to ta l line a r fe e t o f tub ing use d; ho we ve r, it do e s re q uire mo re fitting s, whic h c a n inc re a se c o st a nd insta lla tio n time . Home - Run Me thod – Par alle l T he Ho me Run o r Pa ra lle l Me tho d distrib ute s wa te r to e a c h fixture fro m a c e ntra lly lo c a te d ma nifo ld. T he ho t wa te r ma nifo ld is typic a lly lo c a te d c lo se to the ho t wa te r so urc e in o rde r to pro vide fa st a nd e ffic ie nt ho t wa te r de live ry. T he Ho me Run Me tho d pro vide s a de dic a te d line fro m the ma nifo ld to the fixture whic h re duc e s the ne e d fo r fitting s b e hind the wa ll. Pa g e 5 o f 55
@ Aa rdva rk Cla sse s Insta lla tion Me thods (c ont.) Multi- Por t T e e Me thod T he Multi-Po rt T e e Me tho d c o mb ine s the b e ne fits o f the Co nve ntio na l a nd Ho me Run Me tho ds. T he Multi-Po rt T e e Me tho d runs individua l b ra nc h line s fro m sma lle r ma nifo ld lo c a te d ne a r g ro ups o f fixture s. T his e ffe c tive ly re duc e s the le ng th o f to ta l tub ing use d o n the jo b , while minimizing the numb e r o f fitting s re q uire d fo r the Co nve ntio na l Me tho d o f I nsta lla tio n. Pa g e 6 o f 55
@ Aa rdva rk Cla sse s PEX Tubing Sizes and Dimensions Nom. Size Avg. Avg. I.D. Min. Wall Fluid Wt. Per 100 (CTS) (In.) (In.) Thickness Capacity Ft. (Gal/Foot) (Lbs.) 1/ 4" .375 (3/ 8") . .225 (9/ 40") .062 >0.001 3 3/ 8 .500 (1/ 2") .350 (7/ 20") .070 .005 4 1/ 2" .625 (5/ 8") .475 (19/ 40") .070 .009 5 3/ 4" .875 (7/ 8") .671 (51/ 76") .097 .018 10 1" 1.125 (1-1/ 8") .862 (25/ 29") .125 .030 17 1-1/ 4" 1.375 (1-3/ 8") 1.054 (1-2/ 37") .153 .045 26 1-1/ 2" 1.625 (1-5/ 8") 1.244 (1-10/ 41") .181 .063 37 Pa g e 7 o f 55
@ Aa rdva rk Cla sse s PE X T ubing Installation Pr e c autions Whe n wo rking with PE X tub ing , the fo llo wing re c o mme nde d pra c tic e s liste d b e lo w sho uld b e fo llo we d to ma ximize the life o f the syste m. Note : T he se PE X re c o mme nda tio ns a re inte nde d to pro vide b a sic kno wle dg e fo r the sa fe ha ndling , sto ra g e , a nd insta lla tio n o f PE X tub ing . While this list is no t c o mpre he nsive , a n unde rsta nding o f the stre ng ths a nd limita tio ns o f PE X tub ing will he lp to e nsure tha t it ma inta ins o ptimum pe rfo rma nc e c ha ra c te ristic s thro ug ho ut the life o f the syste m. • PE X tub ing sho uld no t b e e xpo se d to o r sto re d in dire c t ultra vio le t lig ht. • PE X sho uld no t b e e xpo se d to dire c t fla me . I f it is ne c e ssa ry to b ra ze , so lde r, o r we ld, do so prio r to c o nne c ting PE X to the me ta l pipe . • PE X c a nno t b e use d fo r e le c tric a l g ro unding . Co nsult the NE C fo r a ppro pria te g ro unding me tho ds. Pa g e 8 o f 55
@ Aa rdva rk Cla sse s PE X T ubing Installation Pr e c autions • PE X sho uld no t b e insta lle d in c o nditio ns ne a r e xtre me he a t. • Pa inting PE X is unne c e ssa ry. Oil-b a se d pa ints o r la c q ue rs sho uld ne ve r b e a pplie d to PE X tub ing . • PE X sho uld o nly b e use d in o pe ra ting c o nditio ns tha t a re c o nsiste nt with pre ssure ra ting s tha t a ppe a r o n the tub ing a nd a pplic a b le sta nda rds. • PE X tub ing sho uld no t b e sub je c te d to pro lo ng e d e xpo sure to fre e c hlo rine c o nc e ntra tio ns g re a te r tha n 4 ppm. • PE X tub ing tha t ha s b e e n c rushe d o r sc ra tc he d sho uld b e re mo ve d fro m the syste m a nd re pla c e d. • PE X sho uld ne ve r c o me into c o nta c t with a ny c he mic a ls, pipe thre a d c o mpo unds, putty, mine ra l o r linse e d o il pro duc ts. • PE X sho uld o nly b e insta lle d whe n the te mpe ra ture is a b o ve 5 de g re e s F . Pa g e 9 o f 55
@ Aa rdva rk Cla sse s Polyme r PE X F itting s Po lyme r PE X fitting s a re mo lde d fro m a b le nd o f hig hly e ng ine e re d po lyme rs. T he inhe re nt q ua litie s o f the po lyme rs ma ke fitting s hig hly re sista nt to c hlo rine a nd o the r c he mic a ls pre se nt in po ta b le wa te r. Po lyme r PE X fitting s a re a supe rio r a lte rna tive to me ta llic fitting s in a re a s with lo c a lize d a g g re ssive wa te r c he mistrie s. Pa g e 10 o f 55
@ Aa rdva rk Cla sse s Polyme r PE X Installation Pr e c autions Whe n wo rking with po lyme r PE X fitting s, fo llo wing the re c o mme nd e d pra c tic e s liste d b e lo w will he lp ma ximize the life o f the syste m. Note : T he se re c o mme nd a tio ns a re inte nd e d to pro vid e b a sic kno wle d g e fo r the sa fe ha nd ling , sto ra g e , a nd insta lla tio n o f po lyme r PE X fitting s. While this list is no t c o mpre he nsive , a n und e rsta nd ing o f the stre ng ths a nd limita tio ns o f po lyme r PE X fitting s will he lp to e nsure tha t it ma inta ins o ptimum pe rfo rma nc e c ha ra c te ristic s thro ug ho ut the life o f the syste m. • Po lyme r PE X fitting s sho uld o nly b e use d in o pe ra ting c o nd itio ns tha t a re c o nsiste nt with te mpe ra ture a nd pre ssure ra ting s o f the tub e a s we ll a s a pplic a b le sta nd a rd s. • Po lyme r PE X fitting s sho uld no t b e pa inte d . • Po lyme r PE X fitting s sho uld no t b e e xpo se d to d ire c t ultra vio le t lig ht. Whe n po ssib le , pro te c t fitting s with a n o pa q ue c o ve ring . • Po lyme r PE X ma le pipe thre a d s must o nly use PT F E ta pe a s a thre a d se a la nt. • Po lyme r PE X fitting s sho uld no t b e e xpo se d to c le a ne rs, c he mic a ls, so lve nts, se a la nts, o r g lue s a s the y c o uld b e d a ma g e d fro m c o nta c t. • Po lyme r PE X fitting s sho uld a lwa ys b e sto re d in c le a n, pre fe ra b ly line d , b ins o r c o nta ine rs. • Po lyme r PE X F itting s must b e pro te c te d fro m c o nta c t with spra y fo a m insula tio n o r se a la nts. Pa g e 11 o f 55
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