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I02710 Ps�e 2 <br /> SEWERAGE AND <br /> IDRAQVAGE <br /> 2.02 GRAVR'Y FLOW PIPES <br /> IA. PVC dnfnege pipa 15 incha in dluneur and smaller shall be PVC pfpe confortning to ASfM <br /> D3031, SDR 35,vulth rubber gasket Joinb. <br /> IB. PVC drainege pipes grcater �hen IS incha in dismeter and laa than 27 inehes ahall be large <br /> diameter,piaatic gnviry eewer pipe contormin�to ASl'M F679, vall WcJmaa T-1, with rubber <br /> I gasket Joinu. <br /> C. Reinforced concrcte pipe shall oonfortn w WSDOT 9-05.7 ud AASHTO M170. <br /> I2.03 MANHOLES <br /> A. Precut unib�hall be manufacturcd u�d teated in a000rd�nce vith ASTM C 478. <br /> IB. Stepa ahall be sted aonfortNng W ASIM A 307 ud �hW be R�Ivanized dur fabdcatlon. If <br /> ataiNaa ateel steps ue spedfled or called for on plans, the matedel shW confortn to ASI'M A <br /> 276,300 teda. 'Ihe menhole ctept ehall be unitomJy cpaad et�mexlmum of 12'. 'Ihe lowest <br /> ( step ahdl be plead not leas than 8'nor morc Ihen 21'abov�e the shelt. The top step and those <br /> � in the 21'diemeter sectlon shell proJect 1'fneide Ihe manhole and all othen 5'. <br /> I C. Riur sectlau thall be reWorced in s000rdentt vith ASfM C 478 u�d ahdl have a minimum well <br /> thidmat of 1'. <br /> � D. EaenWc oona�hW be reinforced. 'IT�e vall Wdmeu�hW be not laa than 4'. <br /> E. Joints shell be ton�ue and Qroove and thall oonform vith ASI'M C 478. Jdnta thell be anled by <br /> RUB'R-NER, Kmt Sed No. 2, or LO-MOU DEL Joint M�tedal. (n addidon, bunl sectlons <br /> I chall be grouted at the jointa udng non-ehdnk type grout The grout ehdl be factory premixed <br /> wfthout metallk or cortnsive chemicals, oonuininj a type 4 cement. 'Ihe�rout shall develop a <br /> minimum comprcssive tvength equivslent tn tl�e�djuent aoncrete. The grout ahall be Embeco <br /> I713, Five Sur Eqdwlen4 Sikadur HI•Mod LV,or eqwl. <br /> F. A Oadble pipe joint ah�ll be inatalled wdtNn TA'd the muihole aoeept on reintorced concrete <br /> L PiPe <br /> z.a ��������� <br /> IA. Valva <br /> I. Manufecturcn: Allis•Glidmen Mfs. Co„ Mll�veukee,WI;Amerfcan•Darling Valve Div., <br /> I Amedcan Ca+t Iron Pipe Co., Birtninghun, AL; DeZurik Uc.. Sartell, MN; Keyatone <br /> Valve, Hauton,TX; Henry Pntt Co., Aurora, �.; or u:apuMe equivelmG <br /> I 2. Contorm W ANWA Standard C301 for Rubber Seated Bunerfly Velvd aapt u herein I <br /> modifled. <br /> 3. Vdve daip� utlll�n�: (1) Contlnuau rubber Ifnin� m the intemd body arfeas md j <br /> I extendin`over the nan`a,or(z) a diilc vNd��n.t�n uqle a the uls d tAe pipe,NOT <br /> eccepuWe. <br /> I4. Body of ASI'M A126 Qw B cast Iron or ductlle iron. <br /> I BDBP <br /> 090190 <br />