Method Statement Installation of PPR Water SupplyFINAL

Method Statement For  Installation of Cold and Hot water Supply (Wet areas-Oce buildin!

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Issued for Approval

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#urpose a)

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To dene the method of installation of Hot and old !ater ""# "ipin$ %&stems a'ove-$round in toilet and (ithen areas of o*e 'uildin$+

Scope a)

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 This method statement is applia'le for Hot and old !ater ""# "ipin$ %&stems a'ove-$round emplo&in$ the approved materials+

*esponsibilities a)

,A, personnel main tas( is to ensure the .ualit& of /or( and materials delivered to site as per speiations dra/in$s manufaturers reommendations site instrutions and latest applia'le loal and international standards+

')  The pro2et en$ineer-in-har$e is responsi'le for arr&in$ out detailed en$ineerin$ and manpo/er plannin$ /ithin the sope of ontrat preparation revie/ of shop dra/in$s and materials ta(e-o leadin$ to the prourement as per approval '& the onsultant+ ) %ite en$ineer is responsi'le for dail& site /or( oordination and 'riefs supervisors dail& tas(s to 'e underta(en+ d) %afet& o*er ensures and enfore appropriate measures to protet prevent and provide safet& to 'oth lives and properties on site+ e) %tore(eeper shall inspet materials delivered for an& dama$e and or disrepan& 'efore advisin$ ,A , for inspetion+ He shall 'e responsi'le for proper stora$e of the materials reeived on site+

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"ocument , "rawins

a)

Approved %hop dra/in$s related to the /or(in$ area+

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"ipin$ manufaturer doumentations atalo$ues+

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./uipment0 1ools0 Material *e/uirements a)

Tools needed are4

""# fusion /eldin$ mahine onrete drillin$ mahine %et of spanners and sre/ drivers %aoldin$ ')

aterials needed are4 ""# pipes  ttin$s 7rop-in anhorsThreaded rod "ipe lamps

2

#re-#reparation Wor$   a)

he( the /all8oor sleeves openin$ si9es positions et+ aordin$ to approved %hop dra/in$s+

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onrm availa'ilit& of stora$e spae stora$e and deliver& method for pipin$ materials+

3

Safety #recautions a)

As neessar& 'arriade or seure the aeted /or( areas as safet& preautions+

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Al/a&s /ear "": for personal safet& and protetion /ithin pro2et site+

)

Al/a&s /ear proper e&e $o$$les and dust mas( /hile underta(in$ onrete drillin$ /or(s+

4

Wor$ #rocedure Soc$et Fusion 5ointin Method #reparation a)

Chec$ the temperature6 ;ne the so(et fusion is on he( the temperature /hih must ran$e 'et/een <53 = and <>? =+  This operation must 'e performed '& means of tempil sti(s+ The &ello/ one melts at <53 =+ The red one at <>? =+  The fusion temperature ran$es 'et/een <53 = and <>? = /hen the &ello/ pen melts and the red one does not melt the temperature is perfet for fusion+

')

Clean the heatin tools6 After he(in$ the heater 'ush temperature /ipe the heater 'ush /ith a lean loth+ This operation must 'e repeated after eah /eldin$+

)

Cut the pipe6 ut the pipe at ri$ht an$le if neessar& remove s/arf  from inside+

d)

Chamfer the ##* pipes6 In hamferin$ the ends of pipes use suita'le or proper tools+

e)

Clean pipe and 7ttin6 lean the ttin$ inside and the pipe outside @the presene of dust an ause improper fusion)+ Fusion weldin6

a)

Mar$ the pipe6 ar( the pipe for depth of penetration into the heater 'ush and ttin$ @see ta'le)+ The mar( must remain visi'le under heatin$ and 2oinin$+

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Heat pipe and 7ttin6  "ush the pipe and the ttin$ into the heatin$ tools+ ;ne pipe and ttin$ are hot @after the orret time) pull out pipe and ttin$ ver& slo/l&+

)

 5oint pipe and 7ttin6 Joint the pipe  ttin$ and push the pipe until it reahes the mar( @that has to sta& outside)+ 7urin$ the 2ointin$ time the /elded part of pipe and ttin$ assem'lies must remain ed /ithout an& rotation+ 7urin$ the oolin$ time the /elded part of pipe and ttin$ an 'e ad2usted until old+

d)

Fusion inspection6  The outer fusion seam must 'e inspeted+ The seam must 'e present all around the pipe+

Summary 8alue 1able6 "ipe inimum diameter !all mm  Thi(ness  mm

e)

Insert 7epth mm

Heatin$  Time se

 Jointin$ oolin$  Time se  Time min

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!hen all pipe and ttin$ assem'lies are read& installation /or(s ma& no/ start+

f) ar( all pipe lamp loation aordin$ to the reommended spain$ '& pipe manufaturer+ $)

!hen all supports anhors han$ers and pipes are read& pipes eretion ma& no/ proeed+

h)

"erform internal inspetion prior to endorsin$ to the onsultant for inspetion+

i)

;ne onsultant approved the installation proeed to pressure testin$ and one ompleted and inspeted /alls an proeed for plasterin$+